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. Gray had been using liquid transmitters in his telephone experiments for more than two years previously; however, Bell's patent was upheld in court.

Gray is also considered to be the father of the modern music synthesizer, and was granted over 70 patents for his inventions.

Biography and early inventions

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.