Hubbry Logo
TypewriterTypewriterMain
Open search
Typewriter
Community hub
Typewriter
logo
8 pages, 0 posts
0 subscribers
Be the first to start a discussion here.
Be the first to start a discussion here.
Typewriter
Typewriter
from Wikipedia

Mechanical typewriters, such as this 1930s Underwood, were long-time standards in government agencies, newsrooms, and offices.
This late 1960s Olivetti Valentine typewriter designed by Ettore Sottsass became a pop-culture icon.[1]

A typewriter is a mechanical or electromechanical machine for typing characters. Typically, a typewriter has an array of keys, and each one causes a different single character to be produced on paper by striking an inked ribbon selectively against the paper with a type element. Thereby, the machine produces a legible written document composed of ink and paper. By the end of the 19th century, a person who used such a device was also referred to as a typewriter.[2]

The first commercial typewriters were introduced in 1874,[3] but did not become common in offices in the United States until after the mid-1880s.[4] The typewriter quickly became an indispensable tool for practically all writing other than personal handwritten correspondence. It was widely used by professional writers, in offices, in business correspondence in private homes, and by students preparing written assignments.

Typewriters were a standard fixture in most offices up to the 1980s. After that, they began to be largely supplanted by personal computers running word processing software. Nevertheless, typewriters remain common in some parts of the world. For example, typewriters are still used in many Indian cities and towns, especially in roadside and legal offices, due to a lack of continuous, reliable electricity.[5]

The QWERTY keyboard layout, developed for typewriters in the 1870s, remains the de facto standard for English-language computer keyboards. The origins of this layout still need to be clarified.[6] Similar typewriter keyboards, with layouts optimised for other languages and orthographies, emerged soon afterward, and their layouts have also become standard for computer keyboards in their respective markets.

History

[edit]
Peter Mitterhofer's typewriter prototype (1864)

Although many modern typewriters have one of several similar designs, their invention was incremental, developed by numerous inventors working independently or in competition with each other over a series of decades. As with the automobile, the telephone, and telegraph, several people contributed insights and inventions that eventually resulted in ever more commercially successful instruments. Historians have estimated that some form of the typewriter was invented 52 times as thinkers and tinkerers tried to come up with a workable design.[7]

Some early typing instruments include:

  • In 1575, an Italian printmaker, Francesco Rampazetto, invented the scrittura tattile, a machine to impress letters in papers.[8]
  • In 1714, Henry Mill obtained a patent in Britain for a machine that, from the patent, appears to have been similar to a typewriter. The patent shows that this machine was created: "[he] hath by his great study and paines & expence invented and brought to perfection an artificial machine or method for impressing or transcribing of letters, one after another, as in writing, whereby all writing whatsoever may be engrossed in paper or parchment so neat and exact as not to be distinguished from print; that the said machine or method may be of great use in settlements and public records, the impression being deeper and more lasting than any other writing, and not to be erased or counterfeited without manifest discovery."[9]
  • In 1802, Italian Agostino Fantoni developed a particular typewriter to enable his blind sister to write.[10]
  • Between 1801 and 1808, Italian Pellegrino Turri invented a typewriter for his blind friend Countess Carolina Fantoni da Fivizzano.[11]
  • In 1823, Italian Pietro Conti da Cilavegna invented a new model of the typewriter, the tachigrafo, also known as tachitipo.[12]
  • In 1829, American William Austin Burt patented a machine called the "Typographer" which, in common with many other early machines, is listed as the "first typewriter". The London Science Museum describes it merely as "the first writing mechanism whose invention was documented", but even that claim may be excessive since Turri's invention pre-dates it.[13]

By the mid-19th century, the increasing pace of business communication had created a need to mechanize the writing process. Stenographers and telegraphers could take down information at rates up to 130 words per minute, whereas a writer with a pen was limited to a maximum of 30 words per minute (the 1853 speed record).[14]

From 1829 to 1870, many printing or typing machines were patented by inventors in Europe and America, but none went into commercial production.[15]

  • American Charles Thurber developed multiple patents, of which his first in 1843 was created as an aid to blind people, such as the 1845 Chirographer.[16]
  • In 1855, the Italian Giuseppe Ravizza created a prototype typewriter called Cembalo scrivano o macchina da scrivere a tasti ("Scribe harpsichord, or machine for writing with keys"). It was an advanced machine that let the user see the writing as it was typed.[17]
  • In 1861, Father Francisco João de Azevedo, a Brazilian priest, made his typewriter with basic materials and tools, such as wood and knives. In that same year, the Brazilian emperor Pedro II, presented a gold medal to Father Azevedo for this invention. Many Brazilian people, as well as the Brazilian federal government recognize Fr. Azevedo as the inventor of the typewriter, a claim that has been the subject of some controversy.[18]
  • In 1865, John Pratt, of Centre, Alabama (US), built a machine called the Pterotype which appeared in an 1867 Scientific American article[19] and inspired other inventors.
  • Between 1864 and 1867, Peter Mitterhofer [de], a carpenter from South Tyrol (then part of Austria) developed several models and a fully functioning prototype typewriter in 1867.[20]

Hansen Writing Ball

[edit]
Hansen Writing Ball was the first typewriter manufactured commercially (1870).

In 1865, Rev. Rasmus Malling-Hansen of Denmark invented the Hansen Writing Ball, which went into commercial production in 1870 and was the first commercially sold typewriter. It was a success in Europe and was reported as being used in offices on the European continent as late as 1909.[21][22]

Malling-Hansen used a solenoid escapement to return the carriage on some of his models, which makes him a candidate for the title of inventor of the first "electric" typewriter.[23]

The Hansen Writing Ball was produced with only upper-case characters. The Writing Ball was a template for inventor Frank Haven Hall to create a derivative that would produce letter prints cheaper and faster.[24][25][26]

Malling-Hansen developed his typewriter further through the 1870s and 1880s and made many improvements, but the writing head remained the same. On the first model of the writing ball from 1870, the paper was attached to a cylinder inside a wooden box. In 1874, the cylinder was replaced by a carriage, moving beneath the writing head. Then, in 1875, the well-known "tall model" was patented, which was the first of the writing balls that worked without electricity. Malling-Hansen attended the world exhibitions in Vienna in 1873 and Paris in 1878 and he received the first-prize for his invention at both exhibitions.[27][28][29]

Sholes and Glidden typewriter

[edit]
Prototype of the first commercially successful typewriter, the Sholes and Glidden (1873) – with the first QWERTY keyboard

The first typewriter to be commercially successful was patented in 1868 by Americans Christopher Latham Sholes, Frank Haven Hall, Carlos Glidden and Samuel W. Soule in Milwaukee, Wisconsin.[30] The working prototype was made by clock-maker and machinist Matthias Schwalbach.[31] Hall, Glidden and Soule sold their shares in the patent (US 79,265) to Sholes and James Densmore,[32] who made an agreement with E. Remington and Sons (then famous as a manufacturer of sewing machines) to commercialize the machine as the Sholes and Glidden Type-Writer.[31] This was the origin of the term typewriter.

Remington began production of its first typewriter on March 1, 1873, in Ilion, New York. It had a QWERTY keyboard layout, which, because of the machine's success, was slowly adopted by other typewriter manufacturers. As with most other early typewriters, because the typebars struck upwards, the typist could not see the characters as they were typed.[32] This arrangement, retronymically known as understrike would eventually give way to so-called frontstrike mechanisms in later, competing machines.

Index typewriter

[edit]
Hall 1 typewriter, 1881 – the first index typewriter
Mignon Model 4 – a portable index typewriter still manufactured in 1934

The index typewriter came into the market in the early 1880s.[33] The index typewriter uses a pointer or stylus to choose a letter from an index. The pointer is mechanically linked so that the letter chosen could then be printed, most often by the activation of a lever.[15]

The index typewriter was briefly popular in niche markets. Although they were slower than keyboard type machines, they were mechanically simpler and lighter. They were therefore marketed as being suitable for travellers and, because they could be produced more cheaply than keyboard machines, as budget machines for users who needed to produce small quantities of typed correspondence.[33] For example, the Simplex Typewriter Company made index typewriters for 1/40 the price of a Remington typewriter.[34]

The index typewriter's niche appeal however soon disappeared as, on the one hand new keyboard typewriters became lighter and more portable, and on the other refurbished second-hand machines began to become available.[33] The last widely available western index machine was the Mignon typewriter produced by AEG which was produced until 1934. Considered one of the very best of the index typewriters, part of the Mignon's popularity was that it featured interchangeable indexes as well as type,[35] fonts and character sets. This is something very few keyboard machines were capable of—and only at considerable added cost.[35]

Although they were pushed out of the market in most of the world by keyboard machines, successful Japanese and Chinese typewriters are of the index type—albeit with a very much larger index and number of type elements.[36]

Embossing tape label makers are the most common index typewriters today, and perhaps the most common typewriters of any type still being manufactured.[34]

The platen was mounted on a carriage that moved horizontally to the left, automatically advancing the typing position, after each character was typed. The carriage-return lever at the far left was then pressed to the right to return the carriage to its starting position and rotating the platen to advance the paper vertically. A small bell was struck a few characters before the right hand margin was reached to warn the operator to complete the word and then use the carriage-return lever.[37]

Other typewriters

[edit]
Fitch 1 typewriter, 1888
Underwood 1 typewriter, 1896 – the typewriter that would set the design standard for the new century, with four rows of keys, front strike visible and a single shift key. It also had a light and fast typing action.
  • 1884 – Hammond "Ideal" typewriter with case, by Hammond Typewriter Company Limited, United States. Despite an unusual, curved keyboard (see pictures in Gallery and citation), the Hammond became popular because of its superior print quality and changeable typeface. Invented by James Hammond of Boston, Massachusetts in 1880, and commercially released in 1884. The type is carried on a pair of interchangeable rotating sectors, one controlled by each half of the keyboard. A small hammer pushes the paper against the ribbon and type sector to print each character. The mechanism was later adapted to give a straight QWERTY keyboard and proportional spacing.[38]
  • 1888 – Fitch typewriter – made by the Fitch Typewriter Company, Brooklyn, N.Y. and later in the UK with a slightly different look. Operators of the early typewriters had to work "blind": the typed text emerged only after several lines had been completed or the carriage was lifted to look underneath at the page. The Fitch was one of the first machines to allow prompt correction of mistakes with its visible writing; it was said to be the second machine operating on the visible writing system. The typebars were positioned behind the paper and the writing area faced upwards so that the result could be seen instantly. A curved frame kept the emerging paper from obscuring the keyboard, but the Fitch was soon eclipsed by machines in which the paper could be fed more conveniently at the rear.[39]
  • 1893 – Gardner typewriter. This typewriter, patented by Mr J Gardner in 1893, was an attempt to reduce the size and cost. Although it prints 84 symbols, it has only 14 keys and two change-case keys. Several characters are indicated on each key and the character printed is determined by the position of the case keys, which choose one of six cases.[40]
  • 1896 – the "Underwood 1 typewriter, 10" Pica, No. 990". This was the first typewriter with a typing area fully visible to the typist until a key is struck. These features, copied by all subsequent typewriters, allowed the typist to see and if necessary correct the typing as it proceeded. The mechanism was developed in the US by Franz X. Wagner from about 1892 and taken up, in 1895, by John T. Underwood (1857–1937), a producer of office supplies.[41]

Standardization

[edit]

By about 1910, the "manual" or "mechanical" typewriter had reached a somewhat standardized design.[42] There were minor variations from one manufacturer to another, but most typewriters followed the concept that each key was attached to a typebar that had the corresponding letter molded, in reverse, into its striking head. When a key was struck briskly and firmly, the typebar hit a ribbon (usually made of inked fabric), making a printed mark on the paper wrapped around a cylindrical platen.[43][44]

The platen was mounted on a carriage that moved horizontally to the left, automatically advancing the typing position, after each character was typed. The carriage-return lever at the far left was then pressed to the right to return the carriage to its starting position and rotating the platen to advance the paper vertically. A small bell was struck a few characters before the right hand margin was reached to warn the operator to complete the word and then use the carriage-return lever.[37] Typewriters for languages written right-to-left operate in the opposite direction.[45]

By 1900, notable typewriter manufacturers included E. Remington and Sons, IBM, Godrej,[46] Imperial Typewriter Company, Oliver Typewriter Company, Olivetti, Royal Typewriter Company, Smith Corona, Underwood Typewriter Company, Facit, Adler, and Olympia-Werke.[47]

After the market had matured under the market dominance of large companies from Britain, Europe and the United States—but before the advent of daisywheel and electronic machines—the typewriter market faced strong competition from less expensive typewriters from Asia, including Brother Industries and Silver Seiko Ltd. of Japan.

Frontstriking

[edit]
Daugherty typewriter, 1893

In most of the early typewriters, the typebars struck upward against the paper and pressed against the bottom of the platen (understrike), so the typist could not see the text as it was typed.[48] What was typed was not visible until a carriage return caused it to scroll into view.

The difficulty with any other arrangement was ensuring the typebars fell back into place reliably when the key was released. This was eventually achieved with various ingenious mechanical designs and so-called "visible typewriters" which used frontstriking, in which the typebars struck forward against the front side of the platen, which became standard. One of the first front-strike typewriters was the Daugherty Visible, introduced in 1893.

Four-bank keyboard

[edit]

The Daugherty Visible also introduced the four-bank keyboard, which also became standard, although the Underwood, which came out two years later, was the first major typewriter to support frontstriking and a four-bank keyboard.[49][50]

Shift key

[edit]
Remington #2 typewriter keyboard. Note the shift keys bottom-left and top-right. 1878.
A 1911 comparison of then-current full-keyboard (left), single-shift (middle), and double-shift typewriters (right)

A significant innovation was the shift key, introduced with the Remington No. 2 in 1878. This key physically "shifted" either the basket of typebars, in which case the typewriter is described as "basket shift", or the paper-holding carriage, in which case the typewriter is described as "carriage shift".[51] Either mechanism caused a different portion of the typebar to come in contact with the ribbon/platen.

The result is that each typebar could type two different characters, cutting the number of keys and typebars in half (and simplifying the internal mechanisms considerably). The obvious use for this was to allow letter keys to type both upper and lower case, but normally the number keys were also duplexed, allowing access to special symbols such as percent, %, and ampersand, &.[52]

Before the shift key, typewriters had to have a separate key and typebar for upper-case letters; in essence, the typewriter had two full keyboards, one above the other. With the shift key, manufacturing costs (and therefore purchase price) were greatly reduced, and typist operation was simplified; both factors contributed greatly to mass adoption of the technology.

Three-bank typewriters
[edit]

Certain models further reduced the number of keys and typebars by making each key perform three functions—each typebar could type three different characters. These little three-row machines were portable and could be used by journalists.[53]

Such three-row machines were popular with WWI journalists because they were lighter and more compact than four-bank typewriters, while they could type just as fast and use just as many symbols.[54] To include those symbols, three-row machines like the Bar-Let[55] and the Corona No. 3 Typewriter[56][57] had two distinct shift keys performing different functions, a "CAP" shift (for uppercase) and a "FIG" shift (for numbers and symbols).[58] They were thus also known as double-shift typewriters.

Teletypewriters also often used a three-row typewriter keyboard,[59] which looked superficially similar in that it also had two shift keys, "FIGS" (figures) and "LTRS" (letters). However, these Murray code-based machines generally did not allow each key to perform three functions and were a different technology from double-shift typewriters.[a]

Tab key

[edit]

To facilitate typewriter use in business settings, a tab (tabulator) key was added in the late 19th century. Before using the key, the operator had to set mechanical "tab stops" (pre-designated locations to which the carriage would advance when the tab key was pressed). This facilitated the typing of columns of numbers, freeing the operator from the need to manually position the carriage. The first models had one tab stop and one tab key; later ones allowed as many stops as desired, and sometimes had multiple tab keys, each of which moved the carriage a different number of spaces ahead of the decimal point (the tab stop), to facilitate the typing of columns with numbers of different length ($1.00, $10.00, $100.00, etc.) such that the decimal points were vertically aligned. Typically, tab stops could be set by a key-set tabulator control (either by a lever or keys on the keyboard—usually labelled with "+" or "-", or "set" and "clear") or moveable tab stops at the back of the machine, similar to margin stops.

Dead keys

[edit]

Languages such as French, Spanish, and German required diacritics, special signs attached to or on top of the base letter: for example, a combination of the acute accent ´ plus e produced é; ~ plus n produced ñ. In metal typesetting, ⟨é⟩, ⟨ñ⟩, and others were separate sorts. With mechanical typewriters, the number of whose characters (sorts) was constrained by the physical limits of the machine, the number of keys required was reduced by the use of dead keys. Diacritics such as ´ (acute accent) would be assigned to a dead key, which did not move the platen forward, permitting another character to be imprinted at the same location; thus a single dead key such as the acute accent could be combined with a,e,i,o and u to produce á,é,í,ó and ú, reducing the number of sorts needed from 5 to 1. The typebars of "normal" characters struck a rod as they moved the metal character desired toward the ribbon and platen, and each rod depression moved the platen forward the width of one character. Dead keys had a typebar shaped so as not to strike the rod.[61]

Character sizes

[edit]

In English-speaking countries, ordinary typewriters printing fixed-width characters were standardized to print six horizontal lines per vertical inch, and had either of two variants of character width, one called pica for ten characters per horizontal inch and the other elite, for twelve. This differed from the use of these terms in printing, where pica is a linear unit (approximately 16 of an inch) used for any measurement, the most common one being the height of a typeface.[62]

Color

[edit]

Some ribbons were inked in black and red stripes, each being half the width and running the entire length of the ribbon. A lever on most machines allowed switching between colors, which was useful for bookkeeping entries where negative amounts were highlighted in red. The red color was also used on some selected characters in running text, for emphasis. When a typewriter had this facility, it could still be fitted with a solid black ribbon; the lever was then used to switch to fresh ribbon when the first stripe ran out of ink. Some typewriters also had a third position which stopped the ribbon being struck at all. This enabled the keys to hit the paper unobstructed, and was used for cutting stencils for stencil duplicators (aka mimeograph machines).[63]

"Noiseless" designs

[edit]
Rapid typewriter, 1890

The first typewriter to have the sliding type bars (laid out horizontally like a fan) that enable a typewriter to be "noiseless" was the American made Rapid which appeared briefly on the market in 1890. The Rapid also had the remarkable ability for the typist to have entire control of the carriage by manipulation of the keyboard alone. The two keys that achieve this are positioned at the top of the keyboard (seen in the detail image below). They are a "Lift" key that advances the paper, on the platen, to the next line and a "Return" key that causes the carriage to automatically swing back to the right, ready for one to type the new line. So an entire page could be typed without one's hands leaving the keyboard.

In the early part of the 20th century, a typewriter was marketed under the name Noiseless and advertised as "silent". It was developed by Wellington Parker Kidder and the first model was marketed by the Noiseless Typewriter Company in 1917.[64] Noiseless portables sold well in the 1930s and 1940s, and noiseless standards continued to be manufactured until the 1960s.[65]

In a conventional typewriter the type bar reaches the end of its travel simply by striking the ribbon and paper. The Noiseless, developed by Kidder, has a complex lever mechanism that decelerates the type bar mechanically before pressing it against the ribbon and paper in an attempt to dampen the noise.[66]

Electric designs

[edit]

Although electric typewriters would not achieve widespread popularity until nearly a century later, the basic groundwork for the electric typewriter was laid by the Universal Stock Ticker, invented by Thomas Edison in 1870. This device remotely printed letters and numbers on a stream of paper tape from input generated by a specially designed typewriter at the other end of a telegraph line.

Early electric models

[edit]

Some electric typewriters were patented in the 19th century, but the first machine known to be produced in series is the Cahill of 1900.[67]

Another electric typewriter was produced by the Blickensderfer Manufacturing Company, of Stamford, Connecticut, in 1902. Like the manual Blickensderfer typewriters, it used a cylindrical typewheel rather than individual typebars. The machine was produced in several variants but apparently not a commercial success,[68] having come to market ahead of its time, before ubiquitous electrification.

The next step in the development of the electric typewriter came in 1910, when Charles and Howard Krum filed a patent for the first practical teletypewriter.[69] The Krums' machine, named the Morkrum Printing Telegraph, used a typewheel rather than individual typebars. This machine was used for the first commercial teletypewriter system on Postal Telegraph Company lines between Boston and New York City in 1910.[70]

James Fields Smathers of Kansas City invented what is considered the first practical power-operated typewriter in 1914. In 1920, after returning from Army service, he produced a successful model and in 1923 turned it over to the Northeast Electric Company of Rochester for development. Northeast was interested in finding new markets for their electric motors and developed Smathers's design so that it could be marketed to typewriter manufacturers, and from 1925 Remington Electric typewriters were produced powered by Northeast's motors.[71]

After some 2,500 electric typewriters had been produced, Northeast asked Remington for a firm contract for the next batch. However, Remington was engaged in merger talks, which would eventually result in the creation of Remington Rand and no executives were willing to commit to a firm order. Northeast instead decided to enter the typewriter business for itself, and in 1929 produced the first Electromatic Typewriter.[72]

In 1928, Delco, a division of General Motors, purchased Northeast Electric, and the typewriter business was spun off as Electromatic Typewriters, Inc. In 1933, Electromatic was acquired by IBM, which then spent $1 million on a redesign of the Electromatic Typewriter, launching the IBM Electric Typewriter Model 01.[73]

In 1931, an electric typewriter was introduced by Varityper Corporation. It was called the Varityper, because a narrow cylinder-like wheel could be replaced to change the typeface.[74]

In 1941, IBM announced the Electromatic Model 04 electric typewriter, featuring the revolutionary concept of proportional spacing. By assigning varied rather than uniform spacing to different sized characters, the Type 4 recreated the appearance of a typeset page, an effect that was further enhanced by including the 1937 innovation of carbon-film ribbons that produced clearer, sharper words on the page.[75]

IBM Selectric

[edit]
IBM Selectric II (dual Latin/Hebrew typeball and keyboard)

IBM introduced the IBM Selectric typewriter in 1961, which replaced the typebars with a spherical element (or typeball) slightly smaller than a golf ball, with reverse-image letters molded into its surface. The Selectric used a system of latches, metal tapes, and pulleys driven by an electric motor to rotate the ball into the correct position and then strike it against the ribbon and platen. The typeball moved laterally in front of the paper, instead of the previous designs using a platen-carrying carriage moving the paper across a stationary print position.[76]

Due to the physical similarity, the typeball was sometimes referred to as a "golfball".[77] The typeball design had many advantages, especially the elimination of "jams" (when more than one key was struck at once and the typebars became entangled) and in the ability to change the typeball, allowing multiple typefaces to be used in a single document.[78]

The IBM Selectric became a commercial success, dominating the office typewriter market for at least two decades.[77] IBM also gained an advantage by marketing more heavily to schools than did Remington, with the idea that students who learned to type on a Selectric would later choose IBM typewriters over the competition in the workplace as businesses replaced their old manual models.[79]

Later models of IBM Executives and Selectrics replaced inked fabric ribbons with "carbon film" ribbons that had a dry black or colored powder on a clear plastic tape. These could be used only once, but later models used a cartridge that was simple to replace. A side effect of this technology was that the text typed on the machine could be easily read from the used ribbon, raising issues where the machines were used for preparing classified documents (ribbons had to be accounted for to ensure that typists did not carry them from the facility).[80]

A variation known as "Correcting Selectrics" introduced a correction feature, later imitated by competing machines, where a sticky tape in front of the carbon film ribbon could remove the black-powdered image of a typed character, eliminating the need for little bottles of white dab-on correction fluid and for hard erasers that could tear the paper. These machines also introduced selectable "pitch" so that the typewriter could be switched between pica type (10 characters per inch) and elite type (12 per inch), even within one document. Even so, all Selectrics were monospaced—each character and letterspace was allotted the same width on the page, from a capital "W" to a period. IBM did produce a successful typebar-based machine with five levels of proportional spacing, called the IBM Executive.[81]

The only fully electromechanical Selectric Typewriter with fully proportional spacing and which used a Selectric type element was the expensive Selectric Composer, which was capable of right-margin justification (typing each line twice was required, once to calculate and again to print) and was considered a typesetting machine rather than a typewriter. Composer typeballs physically resembled those of the Selectric typewriter but were not interchangeable.[82]

Composer output showing Roman, Bold, and Italic typefaces were available by changing the type ball.

In addition to its electronic successors, the Magnetic Tape Selectric Composer (MT/SC), the Mag Card Selectric Composer, and the Electronic Selectric Composer, IBM also made electronic typewriters with proportional spacing using the Selectric element that were considered typewriters or word processors instead of typesetting machines.[82][83]

The first of these was the relatively obscure Mag Card Executive, which used 88-character elements. Later, some of the same typestyles used for it were used on the 96-character elements used on the IBM Electronic Typewriter 50 and the later models 65 and 85.[84]

By 1970, as offset printing began to replace letterpress printing, the Composer would be adapted as the output unit for a phototypesetting system. The system included a computer-driven input station to capture the key strokes on magnetic tape and insert the operator's format commands, and a Composer unit to read the tape and produce the formatted text for photo reproduction.[85]

The IBM 2741 terminal was a popular example of a Selectric-based computer terminal, and similar mechanisms were employed as the console devices for many IBM System/360 computers. These mechanisms used "ruggedized" designs compared to those in standard office typewriters.[86]

Later electric models

[edit]

Some of IBM's advances were later adopted in less expensive machines from competitors. For example, Smith-Corona electric typewriters introduced in 1973 switched to interchangeable Coronamatic (SCM-patented) ribbon cartridges.[87]

Electronic typewriters

[edit]

The final major development of the typewriter was the electronic typewriter. Most of these replaced the typeball with a plastic or metal daisy wheel mechanism (a disk with the letters molded on the outside edge of the "petals"), or a thermal print head. The daisy wheel concept first emerged in printers developed by Diablo Systems in the 1970s. The first electronic daisywheel typewriter marketed in the world (in 1976) is the Olivetti Tes 501, and subsequently in 1978, the Olivetti ET101 (with function display) and Olivetti TES 401 (with text display and floppy disk for memory storage). This has allowed Olivetti to maintain the world record in the design of electronic typewriters, proposing increasingly advanced and performing models in the following years.[88]

Unlike the Selectrics and earlier models, these really were "electronic" and relied on integrated circuits and electromechanical components. These typewriters were sometimes called display typewriters,[89] dedicated word processors or word-processing typewriters, although the latter term was also frequently applied to less sophisticated machines that featured only a tiny, sometimes just single-row display. Sophisticated models were also called word processors, although today that term almost always denotes a type of software program. Manufacturers of such machines included Olivetti (TES501, first totally electronic Olivetti word processor with daisywheel and floppy disk in 1976; TES621 in 1979, etc.), Brother (Brother WP1 and WP500, etc., where WP stood for word processor), Canon (Canon Cat), Smith-Corona (PWP, i.e. Personal Word Processor line)[90] and Philips/Magnavox (VideoWriter).

Decline

[edit]

The pace of change was so rapid that it was common for clerical staff to have to learn several new systems, one after the other, in just a few years.[91] While such rapid change is commonplace today, and is taken for granted, this was not always so; in fact, typewriting technology changed very little in its first 80 or 90 years.[92]

Due to falling sales, IBM sold its typewriter division in 1991 to the newly formed Lexmark, completely exiting from a market it once dominated.[93]

The increasing dominance of personal computers, desktop publishing, the introduction of low-cost, truly high-quality laser and inkjet printer technologies, and the pervasive use of web publishing, email, text messaging, and other electronic communication techniques have largely replaced typewriters in the United States. Still, as of 2009, typewriters continued to be used by a number of government agencies and other institutions in the US, where they are primarily used to fill preprinted forms. According to a Boston typewriter repairman quoted by The Boston Globe, "Every maternity ward has a typewriter, as well as funeral homes."[94]

A rather specialized market for typewriters exists due to the regulations of many correctional systems in the US, where prisoners are prohibited from having computers or telecommunication equipment, but are allowed to own typewriters. The Swintec corporation (headquartered in Moonachie, New Jersey), which, as of 2011, still produced typewriters at its overseas factories (in Japan, Indonesia, and/or Malaysia), manufactures a variety of typewriters for use in prisons, made of clear plastic (to make it harder for prisoners to hide prohibited items inside it). As of 2011, the company had contracts with prisons in 43 US states.[95][96]

In April 2011, Godrej and Boyce, a Mumbai-based manufacturer of mechanical typewriters, closed its doors, leading to a flurry of news reports that the "world's last typewriter factory" had shut down.[97] The reports were quickly contested, with opinions settling to agree that it was indeed the world's last producer of standard manual typewriters.[98][99][100][101]

In November 2012, Brother's UK factory manufactured what it claimed to be the last typewriter ever made in the UK; the typewriter was donated to the London Science Museum.[102]

Russian typewriters use Cyrillic, which has made the ongoing Azerbaijani reconversion from Cyrillic to Latin alphabet more difficult. In 1997, the government of Turkey offered to donate western typewriters to the Republic of Azerbaijan in exchange for more zealous and exclusive promotion of the Latin alphabet for the Azerbaijani language; this offer, however, was declined.[103]

In Latin America and Africa, mechanical typewriters are still common because they can be used without electrical power. In Latin America, the typewriters used are most often Brazilian models; in 2012, Brazil was continuing to produce mechanical (Facit) and electronic (Olivetti) typewriters.[104]

As of 2025, manual portable typewriters are still being produced by Shanghai Weilv Mechanism Company in China.[105]

The early 21st century saw revival of interest in typewriters among certain subcultures, including makers, steampunks, hipsters, and street poets.[106] They also remained in use for filling out forms, and retained interest for some novelists who preferred writing without the distractions of a personal computer.[107]

Correction technologies

[edit]

According to the standards taught in secretarial schools in the mid-20th century, a business letter was supposed to have no mistakes and no visible corrections.[108]

Typewriter erasers

[edit]
Triumph typewriter eraser (1960)

The traditional correction method involved the use of a special typewriter eraser made of hard rubber that contained an abrasive material. Some were thin, flat disks, pink or gray, approximately 2 inches (51 mm) in diameter by 18 inch (3.2 mm) thick, with a brush attached from the center, while others looked like pink pencils, with a sharpenable eraser at the "lead" end and a stiff nylon brush at the other end. Either way, these tools made possible erasure of individual typed letters. Business letters were typed on heavyweight, high-rag-content bond paper, not merely to provide a luxurious appearance, but also to stand up to erasure.[109]

Typewriter eraser brushes were necessary for clearing eraser crumbs and paper dust, and using the brush properly was an important element of typewriting skill; if erasure detritus fell into the typewriter, a small buildup could cause the typebars to jam in their narrow supporting grooves.[110]

Erasing shield

[edit]
Erasing Shield (1992)

Erasing a set of carbon copies was particularly difficult, and called for the use of a device called an erasing shield or eraser shield, a thin stainless-steel rectangle about 2 by 3 inches (51 by 76 mm) with several tiny holes in it. This would prevent the pressure of erasing on the upper copies from producing carbon smudges on the lower copies. To correct copies, typists had to go from one carbon copy layer to the next carbon copy layer, trying not to get their fingers dirty as they leafed through the carbon papers, and moving and repositioning the eraser shield and eraser for each copy.

Erasable bond

[edit]

Paper companies produced a special form of typewriter paper called erasable bond (for example, Eaton's Corrasable Bond). This incorporated a thin layer of material that prevented ink from penetrating and was relatively soft and easy to remove from the page. An ordinary soft pencil eraser could quickly produce perfect erasures on this type of paper. However, the same characteristics that made the paper erasable made the characters subject to smudging due to ordinary friction and deliberate alteration after the fact, making it unacceptable for business correspondence, contracts, or any archival use.[111]

Correction fluid

[edit]

In the 1950s and 1960s, correction fluid made its appearance, under brand names such as Liquid Paper, Wite-Out and Tipp-Ex; it was invented by Bette Nesmith Graham. Correction fluid was a type of opaque, white, fast-drying paint that produced a fresh white surface onto which, when dry, a correction could be retyped. However, when held to the light, the covered-up characters were visible, as was the patch of dry correction fluid (which was never perfectly flat, and frequently not a perfect match for the color, texture, and luster of the surrounding paper). The standard trick for solving this problem was photocopying the corrected page, but this was possible only with high quality photocopiers.[112]

A different fluid was available for correcting stencils. It sealed up the stencil ready for retyping but did not attempt to color match.[113]

Legacy

[edit]

Keyboard layouts

[edit]
The "QWERTY" layout of typewriter keys became a de facto standard in several countries and continues to be used long after the mechanical reasons for its adoption ceased to apply.

QWERTY

[edit]

The 1874 Sholes & Glidden typewriters established the "QWERTY" layout for the letter keys. During the period in which Sholes and his colleagues were experimenting with this invention, other keyboard arrangements were apparently tried, but these are poorly documented.[114] The QWERTY layout of keys has become the de facto standard for English-language typewriter and computer keyboards. Other languages written in the Latin alphabet sometimes use variants of the QWERTY layouts, such as the French AZERTY, the Italian QZERTY and the German QWERTZ layouts.[115]

The QWERTY layout is not the most efficient layout possible for the English language. Touch-typists are required to move their fingers between rows to type the most common letters. Although the QWERTY keyboard was the most commonly used layout in typewriters, a better, less strenuous keyboard was being searched for throughout the late 1900s.[116]

One popular but incorrect[6] explanation for the QWERTY arrangement is that it was designed to reduce the likelihood of internal clashing of typebars by placing commonly used combinations of letters farther from each other inside the machine.[117]

Other layouts for English

[edit]

A number of radically different layouts such as Dvorak have been proposed to reduce the perceived inefficiencies of QWERTY, but none have been able to displace the QWERTY layout; their proponents claim considerable advantages, but so far none has been widely used. The Blickensderfer typewriter with its DHIATENSOR layout may have possibly been the first attempt at optimizing the keyboard layout for efficiency advantages.[118]

On modern keyboards, the exclamation point is the shifted character on the 1 key, because these were the last characters to become "standard" on keyboards. Holding the spacebar down usually suspended the carriage advance mechanism (a so-called "dead key" feature), allowing one to superimpose multiple keystrikes on a single location. The ¢ symbol (meaning cents) was located above the number 6 on American electric typewriters, whereas ANSI-INCITS-standard computer keyboards have ^ instead.[119]

Keyboards for other languages

[edit]
Italian typewriter Olivetti Lettera 22
Arabic typewriter Imperial Typewriter Company

The keyboards for other Latin languages are broadly similar to QWERTY but are optimised for the relevant orthography. In addition to some changes in the order of letters, perhaps the most obvious is the presence of precomposed characters and diacritics.

Many non-Latin alphabets have keyboard layouts that have nothing to do with QWERTY. The Russian layout, for instance, puts the common trigrams ыва, про, and ить on adjacent keys so that they can be typed by rolling the fingers.[120]

Text in the Arabic alphabet is written from right to left (rather than from left to right): consequently, the carriage on an Arabic typewriter moves to the right after each keystroke.[121] In Arabic script, letters take different shapes depending upon their position in the word and whether they are connected to a preceding letter. A special key is used to allow switching between independent and connected letters.[122]

Typewriters were also made for East Asian languages with thousands of characters, such as Chinese or Japanese. They were not easy to operate, but professional typists used them for a long time until the development of electronic word processors and laser printers in the 1980s.[123]

Typewriter conventions

[edit]
This typed page uses a number of typographic conventions stemming from the mechanical limitations of the typewriter: two hyphens in place of an em dash, double sentence spacing, straight quotation marks, tab indents for paragraphs, and double carriage returns between paragraphs.

A number of typographical conventions stem from the typewriter's characteristics and limitations. For example, the QWERTY keyboard typewriter did not include keys for the en dash and the em dash. To overcome this limitation, users typically typed more than one adjacent hyphen to approximate these symbols.[124] This typewriter convention is still sometimes used today, although modern computer word processing applications can input the correct en and em dashes for each font type.[125]

Other examples of typewriter practices that are sometimes still used in desktop publishing systems include inserting a double space between sentences,[126][127] and the use of the typewriter apostrophe, ', and straight quotes, ", as quotation marks and prime marks.[128] The practice of underlining text in place of italics and the use of all capitals to provide emphasis are additional examples of typographical conventions that derived from the limitations of the typewriter keyboard that still carry on today.[129]

Many older typewriters did not include a separate key for the numeral 1 or the exclamation point !, and some even older ones also lacked the numeral zero, 0. Typists who trained on these machines learned the habit of using the lowercase letter l ("ell") for the digit 1, and the uppercase O ("oh") for the zero. A cents symbol, ¢ was created by combining (over-striking) a lower case c with a slash character (typing c, then backspace, then /). Similarly, the exclamation point was created by combining an apostrophe and a period ('+.!).[130]

Terminology repurposed for the computer age

[edit]

Some terminology from the typewriter age has survived into the computer era.

  • backspace (BS) – a keystroke that moved the cursor backwards one position (on a typewriter, this moved the physical platen backwards), to enable a character to be overtyped. Originally this was used to combine characters (for example, the sequence ', backspace, . to make !). Subsequently it facilitated "erase and retype" corrections (using correction tape or fluid[131]). Only the latter concept has survived into the computer age.
  • carriage return (CR) – return to the first column of text. (Most typewriters switched automatically to the next line. In computer systems, "line feed" (see below) is a function that is controlled independently.)[132]
  • cursor – a marker used to indicate where the next character will be printed. The cursor was originally a term to describe the clear slider on a slide rule;[133] on typewriters, it was the paper that moved and the insertion point was fixed.
  • cut and paste – taking text, a numerical table, or an image and pasting it into a document. The term originated when such compound documents were created using manual paste up techniques for typographic page layout. Actual brushes and paste were later replaced by hot-wax machines equipped with cylinders that applied melted adhesive wax to developed prints of "typeset" copy. This copy was then cut out with knives and rulers, and slid into position on layout sheets on slanting layout tables. After the "copy" had been correctly positioned and squared up using a T-square and set square, it was pressed down with a brayer, or roller. The whole point of the exercise was to create so-called "camera-ready copy" which existed only to be photographed and then printed, usually by offset lithography.[134]
  • dead key – a key that, when typed, does not advance the typing position, thus allowing another character to be overstruck on top of the original character. This was typically used to combine diacritical marks with letters they modified (e.g., è can be generated by first pressing ` and then e). In Europe, where most languages have diacritics, a typical mechanical arrangement meant that hitting the accent key typed the symbol but did not advance the carriage; consequently, the next character to be typed 'landed' on the same position. It was this method that carried across to the computer age whereas an alternative method (press the space bar simultaneously) did not.
  • line feed (LF), also called "newline" – whereas most typewriters rolled the paper forward automatically on a carriage return, this is an explicit control character on computer systems that moves the cursor to the next on-screen line of text[132] (but not to the beginning of that line—a CR is also needed if that effect is desired).
  • shift – a modifier key used to type capital letters and other alternate "upper case" characters; when pressed and held down, would shift a typewriter's mechanism to allow a different typebar impression (such as 'D' instead of 'd') to press into the ribbon and print on a page. The concept of a shift key or modifier key was later extended to Ctrl, Alt, AltGr and Super ("Windows" or "Apple") keys on modern computer keyboards. The generalized concept of a shift key reached its apex in the MIT space-cadet keyboard.[135]
  • tab (HT), shortened from "horizontal tab" or "tabulator stop" – caused the print position to advance horizontally to the next pre-set "tab stop". This was used for typing lists and tables with vertical columns of numbers or words.[136]
    • The vertical tab (VT) control character, named by analogy with HT, was designed for use with early computer line printers, and would cause the fan-fold paper to be fed until the next line's position.
  • tty, short for teletypewriter – used in Unix-like operating systems to designate a given "terminal".[137]

Social effects

[edit]
Putatively humorous "Get out! Can't you see I'm busy" postcard (1900s)

Typewriter manufacturers at first found selling the device difficult. Potential customers compared the $125 Remington product to a pen costing one penny. Recipients of typewritten letters sometimes felt insulted, believing that the sender was implying that the recipient was unable to read handwriting. Manufacturers had to train customers to use their products, and offered free services referring typists and stenographers to employers. Business colleges began teaching typing.[138]

When Remington started marketing typewriters, the company assumed the machine would not be used for composing but for transcribing dictation, and that the person typing would be a woman. The 1800s Sholes and Glidden typewriter had floral ornamentation on the case.[139]

During World Wars I and II, increasing numbers of women were entering the workforce. In the United States, women often started in the professional workplace as copy typists. Being a typist was considered the right choice for a "good girl", meaning women who presented themselves as being chaste and having good conduct.[140] According to the 1900 census, 94.9% of stenographers and typists were unmarried women.[141]

Questions about morals made a salacious businessman making sexual advances to a female typist into a cliché of office life, appearing in vaudeville and movies. The "Tijuana bibles"—adult comic books produced in Mexico for the American market, starting in the 1930s—often featured women typists. In one panel, a businessman in a three-piece suit, ogling his secretary's thigh, says, "Miss Higby, are you ready for—ahem!—er—dictation?"[65]

The typewriter was a useful machine during the censorship era of the Soviet government, starting during the Russian Civil War (1917–1922). Samizdat was a form of surreptitious self-publication used when the government was censoring what literature the public could see. The Soviet government signed a Decree on Press which prohibited the publishing of any written work that had not been previously officially reviewed and approved.[142] Unapproved work was copied manually, most often on typewriters.[143] In 1983, a new law required anyone who needed a typewriter to get police permission to buy or keep one. In addition, the owner would have to register a typed sample of all its letters and numbers, to ensure that any illegal literature typed with it could be traced back to its source.[144] The typewriter became increasingly popular as the interest in prohibited books grew.[145]

Writers with notable associations with typewriters

[edit]

Early adopters

[edit]
  • Henry James dictated to a typist.[65]
  • Mark Twain wrote in his autobiography that he and Petroleum V. Nasby saw a Remington typewriter in a store window in Boston in autumn 1874. Twain bought it out of curiosity, and Nasby invested in a company selling the product. By December 1874 Twain was using it in personal correspondence. Remington cited his use of the product in its first product catalog.[138] Twain claimed that he was the first important writer to present a publisher with a typewritten manuscript, for The Adventures of Tom Sawyer (1876). Research showed that Twain's memory was incorrect and that the first book submitted in typed form was Life on the Mississippi (1883, also by Twain).[146]
  • The horror fiction novelist R. L. Stine first started writing stories when he found a typewriter in his attic. Stine wrote many of his early works with a typewriter.[147]

Others

[edit]
William Faulkner's Underwood Universal Portable in his office at Rowan Oak, which is now maintained by the University of Mississippi in Oxford as a museum
  • William S. Burroughs wrote in some of his novels—and possibly believed—that "a machine he called the 'Soft Typewriter' was writing our lives, and our books, into existence", according to a book review in The New Yorker. In the 1991 film adaptation of his 1959 novel Naked Lunch, his typewriter is a living, insect-like entity (voiced by North American actor Peter Boretski) and actually dictates the book to him.[148]
  • J. R. R. Tolkien was accustomed to typing from awkward positions: "balancing his typewriter on his attic bed, because there was no room on his desk".[149]
  • Jack Kerouac, a fast typist at 100 words per minute, typed his 1957 novel On the Road on a roll of paper so he would not be interrupted by having to change the paper. Within two weeks of starting to write On the Road, Kerouac had one single-spaced paragraph, 120 feet (37 m) long. Some scholars say the scroll was shelf paper; others contend it was a Thermal-fax roll; another theory is that the roll consisted of sheets of architect's paper taped together.[65] Kerouac himself stated that he used 100-foot (30 m) rolls of teletype paper.[150]
  • Don Marquis purposely used the limitations of a typewriter (or more precisely, a particular typist) in his archy and mehitabel series of newspaper columns, which were later compiled into a series of books. According to his literary conceit, a cockroach named "Archy" was a reincarnated free-verse poet, who would type articles overnight by jumping onto the keys of a manual typewriter. The writings were typed completely in lower case, because of the cockroach's inability to generate the heavy force needed to operate the shift key. The lone exception is the poem "CAPITALS AT LAST" from archys life of mehitabel, written in 1933.

Late users

[edit]
  • Richard Polt, a philosophy professor at Xavier University in Cincinnati who collects typewriters, has edited ETCetera, a quarterly magazine about historic writing machines, and is the author of the book The Typewriter Revolution: A Typist's Companion for the 21st Century.[106][34]
  • William Gibson used a Hermes 2000 model manual typewriter to write his 1984 novel Neuromancer and half of Count Zero (1983) before a mechanical failure and lack of replacement parts forced him to upgrade to an Apple IIc computer.[151]
  • Harlan Ellison used typewriters for his entire career, and when he was no longer able to have them repaired, learned to do it himself; he repeatedly stated his belief that computers are bad for writing, maintaining that "Art is not supposed to be easier!"[152]
  • Cormac McCarthy wrote his novels on an Olivetti Lettera 32 typewriter until his death. In 2009, the Lettera he obtained from a pawn shop in 1963, on which nearly all his novels and screenplays were written, was auctioned for charity at Christie's for US$254,500;[153] McCarthy obtained an identical replacement for $20 to continue writing on.[154][155]
  • Will Self explains why he uses a manual typewriter: "I think the computer user does their thinking on the screen, and the non-computer user is compelled, because he or she has to retype a whole text, to do a lot more thinking in the head."[156]
  • Ted Kaczynski (the "Unabomber") infamously used two old manual typewriters to write his polemic essays and messages.[155]
  • Actor Tom Hanks uses and collects manual typewriters.[157][155] To control the size of his collection, he gifts autographed machines to appreciative fans and repair shops around the world.[158]
  • Historian David McCullough used a Royal typewriter to compose his books.[159]
  • Biographer Robert Caro has used various models of the Smith Corona Electra 210 to write his biographies of Robert Moses and Lyndon Johnson.[160]
[edit]

In music

[edit]

Other

[edit]
Typewriting speed competition
(The Hague, 1954)
  • The 2012 French comedy movie Populaire, starring Romain Duris and Déborah François, centers on a young secretary in the 1950s striving to win typewriting speed competitions.[166]
  • The manga (2015–2020) and anime (2018) Violet Evergarden series follows a disabled war veteran who learns to type because her handwriting has been impaired, and soon she becomes a popular typist.
  • California Typewriter, a 2016 documentary film, investigates the culture of typewriter enthusiasts, including an eponymous repair store in Berkeley, California.

Forensic examination

[edit]

Typewritten documents may be examined by forensic document examiners. This is done primarily to determine the make and/or model of the typewriter used to produce a document, or whether or not a particular suspect typewriter might have been used to produce a document.[167]

The determination of a make and/or model of typewriter is a "classification" problem and several systems have been developed for this purpose.[167] These include the original Haas Typewriter Atlases (Pica version)[168] and (Non-Pica version)[169] and the TYPE system developed by Philip Bouffard,[170] the Royal Canadian Mounted Police's Termatrex Typewriter classification system,[171] and Interpol's typewriter classification system,[172] among others.[167]

The earliest reference in fictional literature to the potential identification of a typewriter as having produced a document was by Sir Arthur Conan Doyle, who wrote the Sherlock Holmes short story "A Case of Identity" in 1891.[173]

In non-fiction, the first document examiner[173] to describe how a typewriter might be identified was William E. Hagan who wrote, in 1894, "All typewriter machines, even when using the same kind of type, become more or less peculiar by use as to the work done by them."[174] Other early discussions of the topic were provided by A. S. Osborn in his 1908 treatise, Typewriting as Evidence,[175] and again in his 1929 textbook, Questioned Documents.[176]

A modern description of the examination procedure is laid out in ASTM Standard E2494-08 (Standard Guide for Examination of Typewritten Items).[177]

Typewriter examination was used in the Leopold and Loeb and Alger Hiss cases.

In Romania, according to State Council Decree No. 98 of 28 March 1983, owning a typewriter, both by businesses or by private persons, was subject to an approval given by the local police authorities. People previously convicted of any crime or those who, because of their behaviour, were considered to be "a danger to public order or to the security of the state" were refused approval. In addition, once a year, typewriter owners had to take the typewriter to the local police station, where they would be asked to type a sample of all the typewriter's characters. It was also forbidden to borrow, lend, or repair typewriters other than at the places that had been authorized by the police.[178][179]

Collections

[edit]

Public and private collections of typewriters exist around the world, including:[180]

  • Schreibmaschinenmuseum Peter Mitterhofer (Parcines, Italy)[181]
  • Museo della Macchina da Scrivere (Milan, Italy)[182]
  • Liverpool Typewriter Museum (Liverpool, England)
  • Museum of Printing – MoP (Haverhill, Massachusetts, US)
  • Chestnut Ridge Typewriter Museum (Fairmont, West Virginia, US)
  • Technical Museum of the Empordà (Figueres, Girona, Spain)
  • Musée de la machine à écrire (Lausanne, Switzerland)[183]
  • Lu Hanbin Typewriter Museum Shanghai (Shanghai, China)
  • Wattens Typewriter Museum (Wattens, Austria)
  • German Typewriter Museum (Bayreuth, Germany)
  • Tayfun Talipoğlu Typewriter Museum (Odunpazarı, Eskişehir, Turkey)
  • Museums Victoria Collections (Victoria, Australia)

Several online-only virtual museums collect and display information about typewriters and their history:

  • Virtual Typewriter Museum[184]
  • Chuck & Rich's Antique Typewriter Website
  • Mr. Martin's Typewriter Museum[185]
[edit]

See also

[edit]

Notes

[edit]

References

[edit]

Further reading

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia
from Grokipedia
A typewriter is a mechanical or electromechanical device that produces printed characters similar to those from printer's type through keyboard-operated keys striking an inked ribbon to transfer ink or carbon to paper. The modern typewriter originated in the mid-19th century, with the first commercially successful model—the —developed by American inventors , Carlos Glidden, and Samuel W. Soule, who patented their design in 1868 before licensing it to for production beginning in 1873. This innovation dramatically boosted writing productivity over handwriting, standardized document production in offices, and expanded clerical employment opportunities, particularly for women entering the workforce in the late 19th and early 20th centuries. Typewriters evolved from purely mechanical designs to electric variants in the early 20th century, exemplified by Thomas Edison's prototype and later models like IBM's Selectric with its rotating type element, but they were ultimately supplanted by personal computers and word processors starting in the 1970s and 1980s due to greater efficiency and editability.

History

Precursors and Early Prototypes

The earliest recorded precursor to the typewriter was patented by English engineer on January 7, 1714, describing a capable of "impressing or transcribing of letters singly or progressively one after another, as in writing," using raised characters to mark or without ink, aimed at producing forgery-proof impressions resembling print. No prototype was ever constructed or demonstrated, rendering the invention conceptual and highlighting the mechanical challenges of translating manual writing motions into precise, repeatable strikes without jamming or misalignment. In the early 19th century, American inventor Charles Thurber received a U.S. patent in 1843 for the "Patent Printer," a device intended to assist the blind by mechanically reproducing , featuring a movable and typebars that struck a cylindrical platen. Despite innovations like horizontal paper advancement, the mechanism suffered from excessive slowness in its printing action, frequent jamming due to the intricate linkage of keys to typebars, and high production costs, preventing any viable prototypes from achieving practical use or commercialization. These failures underscored the causal difficulties of synchronizing key depression with reliable typebar movement under varying force applications, a problem rooted in the rudimentary and precision machining available at the time. By the 1860s, European craftsmen pursued more ambitious designs, such as Austrian carpenter Peter Mitterhofer's wooden prototypes developed starting in 1864, which employed pivoting typebars and a flat platen to imprint characters via direct strikes. Mitterhofer constructed at least five models over several years, refining alignment and key arrangement, but lack of official support in led to their neglect, with issues like inconsistent impression depth and mechanical fragility persisting due to material limitations and absence of standardized components. Concurrently, Danish school principal Rasmus Malling-Hansen invented the Writing Ball in 1865, a hemispherical array of 52 keys arranged by frequency for ergonomic pen-like grip, motivated by aiding education through faster transcription. Patented in 1870, it achieved limited production but faced empirical shortcomings including inaccurate character alignment from spherical key misalignment under rapid use, insufficient typing speed compared to handwriting, and durability issues from wire arm fatigue, restricting adoption despite its novel semi-circular layout.

Commercial Development and Key Patents

, along with Carlos Glidden and Samuel W. Soule, received U.S. Patent 79,265 on June 23, 1868, for an "Improvement in Type-Writing Machines," marking one of the earliest practical designs for a typewriter. This patent described a mechanism using individual typebars striking against an inked to imprint characters on , evolving from earlier prototypes that featured piano-like keyboards arranged in . Sholes iteratively refined the keyboard layout through subsequent experiments, shifting to a staggered arrangement by 1872 to reduce mechanical jamming caused by frequent adjacent key strikes in English text, prioritizing separation of common letter pairs over chronological or ergonomic simplicity. Facing challenges in manufacturing and marketing their invention, Sholes and his associates sold the patent rights in 1873 to E. Remington and Sons, an arms and sewing machine manufacturer equipped for precision production, for $12,000. Remington began producing the Sholes & Glidden Type-Writer—also known as the Remington No. 1—on March 1, 1873, introducing it commercially in 1874 at a price of $125. This model represented the first typewriter to achieve commercial success, with approximately 5,000 units sold between 1874 and 1878, demonstrating viable market demand among businesses for mechanized writing. The Sholes & Glidden featured limitations such as uppercase-only output via a single-shift mechanism and a fixed platen requiring manual paper adjustment, yet it proved the typewriter's practicality for office correspondence. Its adoption highlighted empirical gains in clerical efficiency, as the device enabled faster production of uniform, legible documents compared to , facilitating the expansion of administrative roles in growing industrial economies. These developments laid the groundwork for typewriters as essential tools, with Remington's manufacturing expertise accelerating the shift from artisanal prototypes to scalable products.

Standardization and Mass Production

The late and marked a pivotal era of refinement for typewriter design, propelled by intensifying competition among manufacturers and iterative improvements based on typist input, which cemented the machine's role as an office essential. Upstrike models, dominant since the , gave way to frontstrike mechanisms that permitted visible typing, eliminating the need to lift the for verification. The Daugherty Visible, introduced in 1893, first realized this advancement alongside a four-row keyboard layout, while the Underwood No. 1 of 1896 perfected the configuration with a straight four-row keyboard, single shift mechanism, and type bars striking from the front for unobstructed line-of-sight viewing. These innovations addressed key usability complaints, enabling scalability and widespread adoption, with Underwood manufacturing around 12,000 No. 1 units by 1900. Functional enhancements further streamlined operations: the , patented for Remington's No. 2 in 1878 to toggle between cases without dual keys per character, became standard, while tabulator keys emerged in the late 1890s to expedite columnar alignment in business documents. Dead keys for diacritics, which imprinted accents without advancing the carriage, minimized keyboard clutter for multilingual typing. Skilled operators on these standardized machines achieved 43 to 80 , dwarfing average handwriting speeds of 20 to 30 words per minute and accelerating clerical throughput in legal, , and administrative tasks. Uniform pica-sized characters ensured consistent readability for official records, with manufacturers like Remington adopting four-row keyboards by the 1890s to align with evolving ergonomic demands. By the , dual-color ribbons—typically black for body text and red for headings or totals—enhanced document versatility, particularly in . Efforts to produce noiseless variants, such as Remington's models incorporating counterweights for quieter strikes, met with modest success; while reducing acoustic disturbance appealed to some offices, the designs yielded lighter impressions unsuitable for multiple carbon copies and disrupted typists' reliance on audible and tactile feedback for accuracy, limiting their market penetration despite two decades of development.

Electric and Electronic Advancements

Electric typewriters, introduced commercially in , employed solenoids or electromagnets to actuate typebars, minimizing the physical force required from operators and enabling consistent strike force for improved legibility. The Electromatic typewriter, developed by the and first marketed in 1933, served as a foundational model; IBM acquired the technology in 1935 and released the Model 01, which powered key actions electrically to boost typing speed and reduce fatigue. A major leap occurred in 1961 with IBM's Selectric, which replaced individual typebars with a interchangeable spherical print element—commonly called the "golf ball"—that rotated and tilted to imprint characters, eliminating jamming and allowing operation at speeds up to 15 characters per second. This design supported optional proportional spacing, where character widths varied (e.g., 'i' narrower than 'm'), enhancing aesthetic quality over fixed monospaced type. By 1986, IBM had manufactured over 13 million Selectric units, underscoring their widespread adoption for professional output. Electronic typewriters proliferated in the and 1980s, integrating daisy wheel print heads—rotating petals bearing characters—and for temporary text storage, automatic corrections, and basic word processing features like search-and-replace. Devices such as the Wheelwriter series, launched in the late , included RAM for buffering up to several pages of text and ROM for operational logic, permitting edits without retyping entire documents and bridging mechanical typing toward digital systems. Sales of such electronic models peaked in the mid-1980s at around 700,000 units annually, reflecting their role in high-volume office productivity before personal computers offered superior editability; the PC, released in 1981, facilitated reusable digital files that slashed revision costs compared to physical correction tapes or overtypes.

Decline Due to Computing Shift

The rise of personal computers in the early , coupled with word processing software, initiated the rapid obsolescence of typewriters by enabling effortless text editing, deletion, and reformatting without the need to retype entire documents. These digital systems addressed fundamental mechanical limitations of typewriters, such as the inability to insert or revise text post-impression on , which required physical correction tools or full retyping, thereby constraining productivity in document preparation. Digital storage further amplified this shift, allowing unlimited revisions, archiving, and scalability of text handling that mechanical devices could not match due to their reliance on finite and ribbon media. Sales of traditional electric typewriters declined sharply after the introduction of electronic models in , as businesses increasingly adopted solutions for their superior adaptability and cost-efficiency over time. By the mid-1980s, demand for typewriters waned significantly, with IBM's Selectric line—once holding about 75% of the U.S. market in 1975—facing erosion as personal computers proliferated. In , the typewriter market experienced an annual 10% decline since the mid-1980s, reflecting global trends driven by the ubiquity of PCs in professional settings. The of Smith-Corona in , the last major U.S. typewriter manufacturer, underscored the commercial inviability of typewriters amid overwhelming from digital alternatives. In regions with infrastructural challenges, such as the , typewriters persisted into the early 1990s due to their mechanical reliability without dependence on electricity or complex maintenance, contrasting with the fragility of early hardware in harsh environments. Soviet authorities mandated typewriter registration and sample text submissions to monitor usage, indicating continued institutional reliance on the technology even as emerged elsewhere. This holdout reflected not but practical constraints on digital adoption, including limited access to computers and power instability, until economic reforms post-1991 accelerated the transition.

Mechanical and Operational Design

Core Striking Mechanisms

The core striking mechanism in mechanical typewriters consists of typebars—metal arms bearing raised characters—that pivot upward from a type basket or segment to impact an inked against paper wound on the platen, imprinting characters through mechanical leverage from key presses. This design relied on precise linkage systems, including key levers, toggle joints, and springs, to generate sufficient force for clear impressions, typically requiring 50-70 grams of pressure per key for optimal results on standard . Early implementations often employed up-strike configurations, where typebars approached the platen from below or behind, rendering the typing process invisible to the operator and complicating real-time alignment corrections, as seen in prototypes like Peter Mitterhofer's 1864 wooden machine and Rasmus Malling-Hansen's 1867 Writing Ball. These limitations prompted evolution toward down-strike and front-strike designs by the late , where typebars struck the front face of the platen, enabling visible writing and improved character alignment verification, with front-strike models dominating production from approximately onward for enhanced in office settings. To ensure sequential character placement and prevent typebar collisions or overlaps, the striking process integrated with an mechanism featuring notched racks, pawls, and cams that locked the until the typebar fully returned to rest, advancing the exactly one (typically 0.25 inches) per cycle. This cam-driven sequencing mitigated jams from rapid successive strikes, a common failure mode in early machines where adjacent typebars could entangle mid-motion; the layout's separation of frequent letter pairs further reduced such incidents by allowing higher typing speeds without mechanical interference, enabling reliable operation up to 80-100 words per minute for skilled users before inertia and linkage wear imposed limits. Reliability critiques highlight that prolonged use led to misalignment from segment basket warping or spring , capping sustained speeds and increasing error rates in high-volume environments, with no empirical confirming an exact 80% jam reduction but historical evidence indicating substantial improvements over pre-QWERTY arrangements. Ribbon handling complemented striking via vibrators—levers that momentarily lifted or shifted the inked fabric away from the platen post-impact to avoid obscuring fresh characters, often oscillating via cams linked to the spacebar or universal bar for consistent transfer. For multiple reproductions, interleaved carbon papers enabled copies, but legibility degraded rapidly due to pressure diffusion and smearing, yielding typically 3-5 clear copies maximum before subsequent impressions became faint or illegible, as thicker stacks reduced strike efficacy and amplified platen distortion. These constraints underscored inherent speed and durability limits, as mechanical and imprecise tolerances precluded the precision of later electronic systems, confining typewriters to outputs of 5,000-10,000 characters per spool under optimal conditions.

Keyboard Layouts and Ergonomics

The keyboard layout originated in the early 1870s under , who rearranged keys during prototype testing around 1872 to separate common letter pairs like "t-h" and "e-r," thereby reducing mechanical jamming in the typebar linkages of early typewriters. This configuration prioritized uninterrupted operation over raw speed, as jamming halted typing entirely, and empirical adjustments based on observed digram frequencies ensured smoother performance once typists adapted. Contrary to myths portraying as intentionally speed-limiting to accommodate telegraph operators or unskilled typists, Sholes' rationale focused on mechanical efficiency; the layout allowed experienced users to exceed speeds without constant interruptions, as demonstrated in Remington's 1874 production model. Alternative layouts emerged to optimize further. patented his simplified keyboard in 1936, positioning high-frequency English letters on the home row to minimize finger travel and claimed reductions in effort by up to 40%, with speeds purportedly 20-30% faster than after training. However, large-scale evaluations, such as the 1956 U.S. study involving retrained typists, revealed no statistically significant speed gains, attributing Dvorak's self-conducted Navy trials (1930s) to methodological flaws like non-random selection and short baselines. Typewriter emphasized layout-driven reductions in finger reach and alternation between hands, with distributing load across all fingers to avoid overuse, though fixed mechanical constraints prevented personalized adjustments. Later models, from the onward, incorporated subtle keybed curvatures in portables to align with natural hand contours, shortening average finger paths by aligning keys more closely to resting positions without altering core arrangements. Adaptations for non-English languages maintained efficiency principles. In Russia, Cyrillic typewriters appeared commercially in the 1890s, adopting the JCUKEN layout on modified Remington and Underwood machines to map frequent characters away from jamming-prone adjacencies, facilitating import and local production without redesigning linkages.

Paper Feed and Ribbon Systems

The platen in a typewriter consists of a rubberized cylinder mounted on a shaft with journaled bearings, serving to hold and advance paper against the typebars during printing. Paper is gripped and fed through the mechanism via multiple rollers, including front and rear sets coated with rubber or cork over metal cores, which ensure even tension and prevent slippage as the carriage moves. Early designs relied on manual insertion and basic friction feed, but by the early 1900s, supporting arms with spaced bearings improved roller stability and smoothness. Line spacing is controlled by a connected to a ratchet mechanism that incrementally rotates the platen, typically advancing by 1/6 inch for single spacing to align with standard typewriter type sizes of 10 or 12 characters per inch. In some portable models from the 1900s onward, the incorporating the platen was mounted on ball bearings with spacing controllers, reducing and enabling more precise, even advancement compared to earlier friction-based systems. These mechanical constraints limited flexibility, as paper feed required manual alignment and could jam with thicker media like carbon packs, unlike digital systems that handle variable formats without physical rollers. Typewriter ribbons are narrow fabric strips—typically , , or later —saturated with wax- or oil-based , wound on single or twin spools that advance either per keystroke or continuously to distribute wear. Double-spool systems, common from the to , feature auto-reverse mechanisms triggered by eyelets or rivets at ribbon ends, which detect near-empty spools and engage gears to rewind in the opposite direction without user intervention. Bichrome ribbons incorporate parallel and ink sections, selectable via a that positions the ribbon's upper or lower half relative to the print point, but this manual shift precluded seamless multi-color printing beyond two hues and required precise adjustment to avoid misalignment. These systems imposed practical limitations, including ink fading over time due to the finite saturation of fabric (often sufficient for 5-10 multi-strike passes before exhaustion) and the need for periodic spool replacement, contrasting with digital permanence. The reliance on 8.5-by-11-inch letter-size as a in the United States facilitated uniform document production, which streamlined bureaucratic filing and reproduction in offices by ensuring consistent margins and folding for envelopes. However, the mechanical rigidity of feed and handling restricted adaptations like easy color gradients or variable media widths, contributing to typewriters' eventual against computerized alternatives.

Features and Technological Innovations

Shift Mechanisms and Special Keys

![Comparison of full-keyboard, single-shift, and double-shift typewriters][float-right] The shift mechanism, enabling the production of both uppercase and lowercase letters on a single set of keys, was first commercialized in the Remington No. 2 typewriter introduced in , which shifted the entire type basket vertically to select case. Prior to this, full-keyboard typewriters required separate keys for upper and lower cases, doubling the keyboard size and complicating operation. During the late 1870s to 1890s, known as the "Shift Wars" among manufacturers, single-shift designs emerged that used one primarily for case alternation, while half-shift variants incorporated partial movements for numerals and symbols alongside basic case shifting, reducing finger travel and enhancing typing speed. These innovations standardized case access, significantly boosting productivity in by minimizing key count and mechanical redundancy. Special function keys further refined operational efficiency. The tabulator key, introduced in the late , allowed rapid movement to preset columnar positions, with programmable stops enabling precise alignment for ledgers and tables by 1896 in models like early Underwood variants. and spacebar mechanisms evolved from simple carriage returns to dedicated keys, with the permitting character correction without full line erasure, standardizing by the to support iterative document refinement. Dead keys, designed for diacritics in non-Latin scripts, operated by imprinting an accent mark without advancing the , followed by the base letter to compose characters like or , essential for multilingual typing in European and other markets. Standardization of these mechanisms across manufacturers in the early amplified productivity gains, as typists could transition between machines with minimal retraining, facilitating widespread adoption in offices. However, the mechanical linkages in shift and special keys were prone to wear from repetitive motion, often requiring servicing after millions of cycles, which constrained machine longevity compared to later electric models and underscored the trade-offs in purely mechanical designs.

Correction and Editing Technologies

Early typewriter correction relied on manual erasure techniques, employing specialized s composed of hard rubber infused with abrasives to remove typed characters without excessively damaging the . These erasers were often paired with metal shields—thin plates featuring precisely cut slots—to isolate individual errors and prevent abrasion of adjacent text. This method, while effective for minor fixes, was labor-intensive and risked weakening the or leaving faint impressions detectable under scrutiny. In the , advancements included erasable , such as Eaton's Corrasable Bond, which featured a glazed allowing typed impressions to be gently rubbed away with a soft , minimizing penetration. Concurrently, chemical solutions emerged; developed the first in 1951 while working as a secretary, inspired by paint-mixing techniques to create an opaque white liquid that covered errors for retyping. Marketed as Mistake Out and later , it gained traction, with sales reaching one million bottles by 1968. For electric typewriters in the late and , lift-off correction tapes provided a mechanical alternative, using ribbons that bonded to and removed upon re-striking the error key, as pioneered in IBM's Correcting Selectric II released in 1973. These technologies facilitated higher-quality documents by reducing visible corrections, though they demanded skill to avoid smudges or residue, often extending production time compared to digital editing's instantaneous functions. Despite these innovations, typewriter correction remained prone to imperfections; studies on text production indicate typing introduced mechanical errors at rates necessitating frequent interventions, unlike handwriting's tolerance for illegibility in drafts, underscoring the era's emphasis on precision at the cost of efficiency. While enabling polished output for business correspondence, residual traces from erasures or fluids could persist, complicating document integrity assessments.

Specialized Variants (Portable, Noiseless, Indexed)

Portable typewriters emerged to facilitate mobile writing, with the Corona No. 3 model, introduced in 1912 by the Corona Typewriter Company (formerly Standard Typewriter Company), featuring a folding that compacted the device to roughly dimensions for easier transport by journalists and correspondents. Over 675,000 units of the Corona 3 were produced through 1941, underscoring its commercial viability despite limited design changes from the original. These machines weighed substantially less than office standards, enabling field reporting; for instance, New York Times correspondents relied on portables from the into the for on-location drafting. Noiseless variants, developed in the 1930s, prioritized reduced acoustic output through modified striking mechanisms, such as padded typebars or enclosed assemblies that pressed rather than slammed characters against the platen, yielding a softer "thump" over the typical clack of conventional models. Remington's Noiseless series and Underwood's re-engineered portables exemplified this approach, marketed for quieter office and home use, though the gentler action often slowed typing rates relative to standard hammers. Indexed typewriters, prevalent from the into the early , employed a pointer system for character selection via dials, charts, or rotating cylinders, followed by a separate printing lever, which lowered production costs compared to full keyboards during the but demanded more deliberate motions, rendering them slower for sustained composition. The , introduced in , refined this with a cylindrical typewheel and interchangeable indexes supporting up to 84 characters, maintaining niche appeal for budget-conscious users despite keyboard machines' dominance in speed. Advertisements emphasized index models' affordability, though their operational inefficiency limited broader adoption among professional typists.

Economic and Productivity Effects

Adoption in Business and Professional Settings

Typewriters saw initial adoption in business settings during the 1880s, particularly in banks and railroads for ledger entries and record-keeping, where the devices offered superior speed and legibility over handwriting. This shift was motivated by practical efficiencies in handling growing volumes of commercial documentation, as expanding industries like insurance and steamship operations required consistent, reproducible outputs. By enabling carbon copies and uniform formatting, typewriters facilitated standardized contracts and reduced interpretive errors in trade agreements, supporting reliable interstate and international commerce. The technology's integration accelerated office productivity, with studies attributing gains to faster correspondence and clearer records that minimized transcription mistakes compared to manual scripting. In government and corporate environments, typewriters became essential for administrative tasks, culminating in a production peak during World War II, when millions were allocated for military and bureaucratic use to manage logistics and paperwork efficiently. Despite these benefits, high upfront costs—often $100 or more in the early 1900s, equating to roughly two to three months' earnings for clerical workers—limited widespread procurement initially. Ongoing maintenance demands, including ribbon replacements and mechanical adjustments, imposed additional burdens on businesses, offsetting some productivity advantages until lowered prices in later decades. Adoption thus prioritized sectors where error reduction and standardization yielded clear cost savings, such as in financial ledgers where precision directly impacted fiscal accuracy.

Labor Efficiency Gains and Workforce Changes

![Nationale kampioenschap typen in Den Haag, Bestanddeelnr 906-7443.jpg][float-right] The typewriter markedly enhanced labor efficiency in administrative tasks, permitting professional typists to achieve output rates of 40 to 60 , substantially exceeding the 13 to 22 associated with or manual copying by scribes. This acceleration in document production reduced the time required for and record-keeping, enabling firms to process higher volumes of paperwork internally and supporting the scale-up of operations without proportional increases in clerical headcount. Such gains facilitated in enterprises by diminishing reliance on outsourced scribal or services, allowing companies to centralize administrative functions and coordinate larger production and distribution chains more effectively through standardized, rapid . Empirical correlations between typewriter adoption and show that office output per worker rose in tandem with mechanical typing's diffusion in the late 19th and early 20th centuries, as businesses expanded correspondence networks to match industrial growth. In the , typewriters created demand for skilled operators, with women comprising 93 percent of U.S. stenographers and typists by , a shift driven by the profession's requirement for touch- proficiency that commanded wages above those of unskilled positions. This skill premium incentivized voluntary participation, as typing roles offered stable with earnings reflecting the efficiency gains typists delivered, often surpassing factory wages adjusted for skill levels in contemporaneous data. The transition to in the 1970s through 1990s, via word processors and personal computers, led to the displacement of dedicated typist jobs, with U.S. in stenography, , and secretarial occupations peaking around 1980 before declining sharply— from millions in clerical roles to a fraction by the —as digital tools obviated mechanical . However, this shift correlated with net productivity improvements, as retrained workers adapted to computer-assisted tasks, expanding administrative capabilities beyond typewriter limitations and contributing to broader without overall contraction in office sectors.

Criticisms of Limitations and Costs

Typewriters faced criticism for mechanical vulnerabilities, including frequent jamming of keys and typebars, which occurred when rapid typing caused the linkage arms to tangle or collide, necessitating manual intervention to disentangle components. This unreliability demanded regular maintenance and repairs, as worn parts like springs, pivots, and linkages degraded over time, leading to operational interruptions in professional settings. The audible clacking produced by striking keys against the platen and generated significant in offices, often described as distracting and fatiguing for prolonged use, particularly in open-plan environments where multiple machines operated simultaneously. Such acoustic disruption contributed to reduced concentration and , prompting some organizations to seek quieter variants or spacing adjustments, though standard models remained prevalent until later innovations. Ongoing operational costs posed another limitation, with ink ribbons requiring periodic replacement—typically after 3,000 to 5,000 pages of use—and repairs involving labor-intensive disassembly often billed at $150 per hour or more by specialists. These expenses contrasted with the shift to computers, where initial hardware outlays enabled reusable digital media without equivalent consumables like ribbons, though typewriters avoided software dependencies and power requirements. The absence of digital searchability further constrained scalability, as users could not electronically index or retrieve information from produced documents, limiting efficiency in handling expansive records or revisions. Despite these drawbacks, typewriter output yielded mechanically embedded ink impressions on , fostering durable archives with high legibility over decades, in contrast to handwritten or certain printed documents prone to ink fading from or exposure. This permanence preserved evidentiary value in legal and historical contexts, where typewritten text resisted degradation better than dye-based inks susceptible to photochemical breakdown.

Forensic and Evidentiary Applications

Typewriter Identification Techniques

Forensic document examination identifies typewriters used to produce questioned documents by distinguishing class characteristics, such as design, character pitch, and line spacing, from individualizing features arising from manufacturing tolerances and operational wear. Class characteristics allow determination of make and model through comparison with known exemplars, while individual traits, including typeface defects like chips, dents, or irregular outlines, enable linkage to a specific . These defects result from mechanical interactions, such as typebar rebound or print element damage, and are analyzed under to detect variations not replicable across identical models. Microscopic scrutiny, often using a comparison microscope at 10-40x magnification, reveals subtle anomalies in character impressions, such as vertical or horizontal misalignment, rotational tilt, and slant deviations from the baseline. Horizontal spacing is measured for consistency in fixed-pitch systems or proportional variations, with defects like uneven escapement or ribbon inconsistencies providing probabilistic evidence of machine specificity. Alignment defects, particularly in lowercase letters, exhibit unique patterns per machine; for instance, analysis of 21 IBM Selectric Model 72 typewriters demonstrated differentiable tilt and rotation variations sufficient for associating impressions to individual units when standards are available./jfs292840624.pdf) To detect typewritten indentations on underlying sheets, the Electrostatic Detection Apparatus (ESDA) applies a technique involving paper humidification to 100% relative , to a plate, corona charging, and toner to electrostatic impressions, visualized on imaging film without glass beads for typed text. Toner is spread using tools like brushes or inflated balloons rubbed with for even distribution, followed by secondary corona fixation, yielding high-contrast transparencies of indented characters even after months or on non-shiny surfaces. This non-destructive method complements direct impression analysis by recovering latent evidence from multi-page documents. Contemporary enhancements incorporate digital scanning and image processing to quantify defects and spacing at higher resolutions, yet the inherent mechanical uniqueness of typewriters—stemming from irreplaceable wear—maintains the primacy of analog microscopic methods over purely digital replication. Reliability depends on exemplar quality and defect prevalence, with standards emphasizing side-by-side comparisons to evaluate similarities exceeding chance expectations.

Role in Document Authentication and Fraud Detection

Typewriters facilitated document authentication by imprinting unique mechanical characteristics onto paper, such as variations in type slug alignment, ink ribbon impressions, and spacing irregularities, which served as inherent signatures resistant to perfect replication without specialized equipment. These traits arose from tolerances and progressive wear on individual machines, making it challenging for forgers to produce indistinguishable duplicates during the typewriter's dominant era from the late 19th to mid-20th centuries. Unlike fluid digital editing, typewriter-produced originals required physical retyping for alterations, often leaving visible erasures, strikeovers, or inconsistencies detectable under magnification or transmitted light. Early attempts at typewriter forgery highlighted vulnerabilities but also spurred authentication advancements; for instance, the 1915 People v. Risley case marked the first documented effort to forge a typewritten instrument, where the perpetrator altered a on an existing , yet scrutiny of character defects exposed the fraud despite claims of examining thousands of typewriters. Subsequent techniques evolved to compare lifts, platen impressions, and fabric patterns against known exemplars, enabling verification of and detection of substitutions or patchwork forgeries. Carbon copies, produced simultaneously with originals via interleaved sheets, provided verifiable duplicates that conformed precisely to the primary under overlay or light examination, bolstering chain-of-custody integrity by confirming no post-production modifications. In legal and diplomatic contexts, typewriters secured high-stakes originals—such as contracts and official correspondence—by embedding tamper-evident features that predated digital vulnerabilities, where alterations could occur invisibly and at scale. This mechanical fixity reduced risks in an age reliant on , as forgers lacked access to uniform replication until photomechanical processes advanced, thereby maintaining evidentiary reliability for transactions and records until the 1980s transition to computers. In the trials of 1949 and 1950, typewriter identification served as pivotal forensic evidence. , a former Communist operative, produced 65 typed pages of classified State Department documents, known as the " Documents," which he claimed Hiss had provided to Soviet agents in . Bureau of Standards examiners matched these to a Woodstock typewriter (serial No. 230099) recovered from the Hiss family residence, citing consistent individual character defects such as imperfectly aligned letters and unique wear patterns on keys like the numerals 2 and 5. Hiss denied ownership or use of the machine for such purposes, leading to his conviction on two counts of on January 21, 1950, with a sentence of five years' imprisonment, though he maintained innocence until his death. The defense challenged the matching through the " by typewriter" theory, positing that Communists could have replicated defects using a similar model and worn type slugs to simulate the originals, a technique demonstrated in earlier evidential disputes. , including from the U.S. Army's document laboratory, upheld the identification's reliability, rejecting duplication claims due to the improbability of exactly mimicking multiple microscopic anomalies across documents typed years apart. This case established typewriter class and individual characteristics—such as pitch variations and impression depth—as admissible for linking suspects to questioned documents, influencing subsequent forensic standards. Earlier precedents include Levy v. Rust (1901), the first appellate review of typewriter evidence in U.S. courts, where justices affirmed that visible type defects could identify a specific machine in a dispute, overturning a lower court's exclusion of such . In Risley v. U.S. (1920s), a rare conviction hinged on proof that the defendant physically altered a typewriter's type elements to evade identification in fraudulent letters, demonstrating tampering's detectability through metallurgical inconsistencies. These rulings underscored typewriters' evidentiary value in , predating widespread adoption of comparison microscopes for precise defect mapping. Post-World War II counterespionage efforts occasionally relied on typewriter forensics to trace leaked documents, though many specifics remain classified; declassified files indicate unique impressions exposed anonymous sources in diplomatic breaches during the early . In modern contexts, typewriters have surfaced in air-gapped investigations, such as probes into state actors bypassing digital , but judicial applications remain infrequent due to and printer ubiquity.

Cultural and Intellectual Legacy

Influence on Writing Practices and Authors

became one of the first major authors to embrace the typewriter, acquiring a Sholes & Glidden model in 1874 and using it for composing portions of his manuscripts, including claims of producing the initial typewritten novel drafts such as . This early adoption in the 1870s highlighted the machine's appeal for generating uniform, readable text that bypassed the illegibility often plaguing handwritten submissions to publishers. By enabling cleaner drafts and reducing transcription errors, typewriters allowed authors to revise iteratively without relying solely on scribes or full recopying, though edits typically involved retyping affected sections—a process more efficient than but still deliberate. Productivity analyses from the era estimated typewriters accelerated writing output by up to 40 minutes per hour relative to pen and paper, aiding authors in meeting demands. This shift supported , as legible typed pages became standard for editors by the early , with many writers preferring them for clarity in submissions. Ernest Hemingway exemplified later reliance on typewriters for sustained composition, employing portable models like the Corona 3 until they were mechanically exhausted, which imposed a rigorous, distraction-free routine fostering direct output over endless tinkering. However, the device's mechanical constraints—fixed key strikes and audible clatter—drew critiques from some users for potentially interrupting spontaneous creative flow, favoring handwriting's fluidity for initial ideation before transferring to type for finalization. Despite such reservations, the typewriter's elevated authorial efficiency, balancing output gains against the it enforced.

Representations in Literature and Media

In productions of the mid-20th century, typewriters frequently served as authentic props evoking the era's journalistic and investigative rigor, underscoring their reliability for generating durable, verifiable records without electrical dependency. Examples include operating a Royal KMM model in (1950), which contributed to the film's tense atmosphere through the machine's audible keystrokes, and using a in (1953) to depict procedural documentation. These depictions emphasized the typewriter's mechanical permanence as a narrative device for plot authenticity, though the clacking noise often portrayed as intrusive heightened dramatic tension in otherwise silent scenes. Broader cinematic representations extend this motif, with typewriters symbolizing raw creativity amid adversity in films like Stephen King's adapted Misery (1990), where a Royal 10 model underscores the protagonist's forced isolation and physical toil in writing. Similarly, in David Cronenberg's (1991), the machine embodies hallucinatory productivity, reflecting its historical role in enabling consistent output despite requiring deliberate, error-resistant input. Such portrayals highlight pros like uneditable finality fostering disciplined revision, contrasted with cons such as the forceful key strikes and ribbon jams that demanded user endurance, often amplified for visual drama over empirical efficiency. In musical compositions, the typewriter's percussive clatter has been integrated as a rhythmic element, as in Leroy Anderson's 1950 orchestral piece , which employs an actual machine to replicate typing cadences, carriage returns, and bell dings for a whimsical evocation of clerical routine. This representation captures the instrument's intrinsic noisiness as both a structural asset for tempo and a potential , aligning with its real-world auditory footprint that could disrupt collaborative environments yet provided tactile feedback for solo operators. Literary depictions often frame typewriters as emblems of modern alienation or aspiration, as in ' The Glass Menagerie (1944), where the device signifies Tom Wingfield's entrapment in rote employment, its mechanical repetition mirroring familial pressures against artistic freedom. Media across these forms tends to exaggerate the "romantic struggle" of typing—evident in visuals of crumpled sheets and exhaustive retypes—as a badge of genuine toil, yet this overlooks the typewriter's causal advancement in output speed, with users achieving up to 100 words per minute versus handwriting's limitations, prioritizing narrative over prosaic productivity. Recent media nods to hipster revivals portray typewriters as antidotes to digital fragmentation, grounded in their historical offline reliability, though empirical sales remain niche, with enthusiasts citing focused composition amid the machines' unforgiving permanence.

Terminology and Conventions in Digital Age

The "shift" key derives from typewriter mechanisms that physically shifted the type basket or platen to engage uppercase or symbol dies, a function replicated in digital keyboards to toggle between character sets without altering core input hardware. The "tab" key traces to the tabulator rack and stops introduced on typewriters around 1898 by Oscar Sundstrand for precise columnar spacing and indentation, enabling automated alignment that carried over to computing for form navigation and code structuring. "Carriage return," referring to the typewriter's lever or knob that reset the print head to the left margin while advancing the platen by one line, evolved into the "return" or "enter" key in early computers and terminals, denoting line termination in text protocols like ASCII's CR (carriage return, code 13). The keyboard arrangement, finalized in 1873 for the to minimize arm interference and jamming in mechanical linkages, exhibits persistence in digital interfaces not merely as but due to its functional adequacy, as evidenced by studies finding typing speeds and error rates under QWERTY comparable to alternatives like Dvorak after accounting for retraining periods exceeding 20-40 hours for marginal gains of 5-10% in novice efficiency. Monospaced fonts, constrained by typewriters' fixed inter-character spacing to ensure consistent carriage advancement of 1/12 inch per letter circa 1900, inform digital defaults in code editors and terminals, where proportional alternatives disrupt columnar essential for scripting and . This mechanical lineage underpins standardized text protocols, such as newline conventions blending CR with line feed (LF, code 10) from teletype influences on typewriters, enforcing in file formats and ensuring mechanical-era alignments persist in software rendering for .

Modern Niche Uses and Revival

Security and Air-Gapped Applications

In environments requiring absolute isolation from digital networks, typewriters provide an air-gapped alternative to computers, eliminating risks of remote hacking, data exfiltration, or electronic . Mechanical typewriters generate no digital records, network signals, or stored , rendering them impervious to cyber intrusions that have compromised electronic systems worldwide. This inherent disconnection ensures that sensitive documents cannot be altered or accessed remotely, a demonstrated by their continued for classified operations despite slower production speeds. Russia's Federal Guard Service, responsible for Kremlin protection, purchased 20 typewriters in July 2013 following leaks by and , aiming to safeguard top-secret correspondence intended for the president and defense minister. The decision addressed vulnerabilities in electronic communications exposed by U.S. surveillance revelations, favoring paper-based outputs that leave no traceable . Similarly, India's High Commission in reverted to typewriters in September 2013 for composing sensitive diplomatic notes amid the same NSA spying , bypassing potential intercepts by agencies like Britain's . These cases highlight typewriters' role in high-stakes governmental settings where the causal certainty of physical isolation outweighs inefficiencies like manual corrections and limited editability. Unlike electric or electronic typewriters, which can emit detectable electromagnetic signals or be physically compromised as in historical bugs on models, purely mechanical variants produce zero compromising emanations, evading TEMPEST-style monitoring techniques. Empirical records show no instances of remote breaches via typewriters, in contrast to digital systems affected by exploits like those disclosed in Snowden's documents, which detailed global interception of encrypted traffic. While critics note the labor-intensive nature—requiring retyping for errors and lacking searchability—these drawbacks are secondary to the unbreakable barrier against networked threats, sustaining niche adoption in and contexts prioritizing over velocity. The collector market for typewriters is primarily driven by the scarcity of well-preserved vintage models and their historical significance in , with demand concentrated among enthusiasts valuing functional reliability over mere decoration. Common desktop models from the early , such as the Underwood No. 5 produced between 1900 and 1930s, typically sell for $200 to $1,000 in working condition on platforms like and , depending on factors like originality of parts and absence of rust. Rare prototypes or early patents can command thousands at auctions, reflecting premiums for documented and limited production runs. Hobbyist communities emphasize preservation through restoration, often focusing on disassembling, cleaning, and replacing worn components like typebars and springs to maintain operational integrity. Groups such as the Antique Typewriter Collectors on and regional clubs like the ATL Typewriter Club facilitate knowledge-sharing on sourcing parts and techniques, with members prioritizing mechanical accuracy to extend machine lifespans beyond original manufacturing dates. Professional restoration services charge €50-€100 for standard work, underscoring a trend toward sustaining rather than cosmetic upgrades. While some hobbyists incorporate modifications—adding brass fittings or exposed gears for aesthetic appeal—the enduring collectibility stems from empirical evidence of typewriter durability, with metal-framed models from the 1920s-1950s routinely functioning after 50-100 years of intermittent use when properly maintained. This longevity, attributable to overbuilt components like cast-iron frames and spring-steel mechanisms, contrasts with disposable and justifies market values tied to proven resilience rather than novelty.

Contemporary Productivity and Creative Appeals

In the 2020s, manual typewriters have seen renewed interest among writers and creatives for their ability to foster sustained focus amid pervasive digital interruptions. Proponents, including contemporary authors, highlight the device's inherent lack of connectivity and notifications as a key factor in boosting drafting output, with reports from 2025 indicating that users experience enhanced immersion and reduced compared to computer-based writing. This distraction-free environment encourages a linear, forward-moving composition , where the physical act of —without instant deletion—promotes commitment to initial ideas and minimizes over-editing. The appeal extends to cognitive benefits, as the mechanical feedback and rhythmic keystrokes reportedly induce a state of flow, aligning with from users who reserve typewriters for first drafts to achieve higher word counts in focused sessions. While direct empirical studies on typewriter-specific are scarce, related research on manual input versus typing underscores advantages in connectivity and retention from analog methods, suggesting typewriters may similarly engage users more deeply than screens. Authors in 2025 have cited these qualities for privacy-preserving, air-gapped workflows that sidestep data-tracking concerns while prioritizing creative momentum. Despite these draws, typewriters face practical limitations: their slower speed—typically 20-40 versus 60+ on keyboards—and absence of search or autocorrect functions render them inefficient for or iterative revisions. Users acknowledge this niche role, positioning typewriters as supplements for mindfulness-driven bursts rather than full alternatives to digital tools. Market indicators reflect modest growth in this analog trend, with manual typewriter sales numbering in the low thousands annually worldwide as of 2023-2025, driven by enthusiast purchases amid rising in tactile productivity aids. Search interest for and manual models surged in late 2025, underscoring a cultural shift toward deliberate, low-tech creativity without displacing broader digital adoption.

References

Add your contribution
Related Hubs
User Avatar
No comments yet.