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Elisha Gray
Elisha Gray (August 2, 1835 – January 21, 1901) was an American electrical engineer who co-founded the Western Electric Manufacturing Company. Gray is best known for his development of a telephone prototype in 1876 in Highland Park, Illinois. Some recent authors have argued that Gray should be considered the true inventor of the telephone because Alexander Graham Bell allegedly stole the idea of the liquid transmitter from him. Although Gray had been using liquid transmitters in his telephone experiments for more than two years previously, Bell's telephone patent was upheld in numerous court decisions.
Gray is also considered to be the father of the modern music synthesizer, and was granted over 70 patents for his inventions. He was one of the founders of Graybar, purchasing a controlling interest in the company shortly after its inception.
Gray was born in Barnesville, Ohio, the son of Christiana (Edgerton) and David Gray. His family were Quakers. He was brought up on a farm. He spent several years at Oberlin College where he experimented with electrical devices. Although Gray did not graduate, he taught electricity and science there and built laboratory equipment for its science departments.
In 1862, while at Oberlin, Gray met and married Delia Minerva Shepard.
In 1865, Gray invented a self-adjusting telegraph relay that automatically adapted to varying insulation of the telegraph line. In 1867 Gray received a patent for the invention, the first of more than seventy.
In 1869, Elisha Gray and his partner Enos M. Barton founded Gray & Barton Co. in Cleveland, Ohio to supply telegraph equipment to the giant Western Union Telegraph Company. The electrical distribution business was later spun off and organized into a separate company, Graybar Electric Company, Inc. Barton was employed by Western Union to examine and test new products.
In 1870, financing for Gray & Barton Co. was arranged by General Anson Stager, a superintendent of the Western Union Telegraph Company. Stager became an active partner in Gray & Barton Co. and remained on the board of directors. The company moved to Chicago near Highland Park. Gray later gave up his administrative position as chief engineer to focus on inventions that could benefit the telegraph industry. Gray's inventions and patent costs were financed by a dentist, Dr. Samuel S. White of Philadelphia, who had made a fortune producing porcelain teeth. White wanted Gray to focus on the acoustic telegraph which promised huge profits instead of what appeared to be unpromising competing inventions such as the telephone. White made the decision in 1876 to redirect Gray's interest in the telephone.
In 1870, Gray developed a needle annunciator for hotels and another for elevators. He also developed a microphone printer which had a typewriter keyboard and printed messages on paper tape.
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Elisha Gray
Elisha Gray (August 2, 1835 – January 21, 1901) was an American electrical engineer who co-founded the Western Electric Manufacturing Company. Gray is best known for his development of a telephone prototype in 1876 in Highland Park, Illinois. Some recent authors have argued that Gray should be considered the true inventor of the telephone because Alexander Graham Bell allegedly stole the idea of the liquid transmitter from him. Although Gray had been using liquid transmitters in his telephone experiments for more than two years previously, Bell's telephone patent was upheld in numerous court decisions.
Gray is also considered to be the father of the modern music synthesizer, and was granted over 70 patents for his inventions. He was one of the founders of Graybar, purchasing a controlling interest in the company shortly after its inception.
Gray was born in Barnesville, Ohio, the son of Christiana (Edgerton) and David Gray. His family were Quakers. He was brought up on a farm. He spent several years at Oberlin College where he experimented with electrical devices. Although Gray did not graduate, he taught electricity and science there and built laboratory equipment for its science departments.
In 1862, while at Oberlin, Gray met and married Delia Minerva Shepard.
In 1865, Gray invented a self-adjusting telegraph relay that automatically adapted to varying insulation of the telegraph line. In 1867 Gray received a patent for the invention, the first of more than seventy.
In 1869, Elisha Gray and his partner Enos M. Barton founded Gray & Barton Co. in Cleveland, Ohio to supply telegraph equipment to the giant Western Union Telegraph Company. The electrical distribution business was later spun off and organized into a separate company, Graybar Electric Company, Inc. Barton was employed by Western Union to examine and test new products.
In 1870, financing for Gray & Barton Co. was arranged by General Anson Stager, a superintendent of the Western Union Telegraph Company. Stager became an active partner in Gray & Barton Co. and remained on the board of directors. The company moved to Chicago near Highland Park. Gray later gave up his administrative position as chief engineer to focus on inventions that could benefit the telegraph industry. Gray's inventions and patent costs were financed by a dentist, Dr. Samuel S. White of Philadelphia, who had made a fortune producing porcelain teeth. White wanted Gray to focus on the acoustic telegraph which promised huge profits instead of what appeared to be unpromising competing inventions such as the telephone. White made the decision in 1876 to redirect Gray's interest in the telephone.
In 1870, Gray developed a needle annunciator for hotels and another for elevators. He also developed a microphone printer which had a typewriter keyboard and printed messages on paper tape.