Who is Elisha Gray?
Jump to navigation Jump to search. 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.
Was Elisha Gray a graduate of Oberlin College?
Although Gray was not a graduate of Oberlin College, he taught electricity and science at Oberlin and built laboratory equipment for Oberlin science departments. Elisha Gray was an educator and inventor in nineteenth-century America. Gray was born in Barnesville, Ohio, on August 2, 1835.
When did Elisha Gray invent the telegraph?
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.
What happened to Gray and Barton Company?
In 1872 Western Union, then financed by the Vanderbilts and J. P. Morgan, bought one-third of Gray and Barton Co. and changed the name to Western Electric Manufacturing Company of Chicago. Gray continued to invent for Western Electric. In 1874, Gray retired to do independent research and development.
What happened Elisha GREY?
In 1899, Gray moved to Boston where he continued inventing. One of his projects was to develop an underwater signaling device to transmit messages to ships. One such signaling device was tested on December 31, 1900. Three weeks later, on January 21, 1901, Gray died from a heart attack in Newtonville, Massachusetts.
Where did Elisha Gray die?
Newtonville, Newton, MAElisha Gray / Place of deathNewtonville is one of the thirteen villages within the city of Newton in Middlesex County, Massachusetts, United States. Wikipedia
When did Elisha Gray die?
January 21, 1901Elisha Gray / Date of deathElisha Gray, (born Aug. 2, 1835, Barnesville, Ohio, U.S.—died Jan. 21, 1901, Newtonville, Mass.), U.S. inventor and contestant with Alexander Graham Bell in a famous legal battle over the invention of the telephone.
How many inventions did Elisha Gray make?
seventy inventionsGray obtained patents for approximately seventy inventions during his lifetime and he taught at Oberlin College for a number of years.
What work did Bell and Gray do?
On the morning of February 14, 1876, a representative for Alexander Graham Bell handed in a patent application to the patent office in Washington for an apparatus for transmitting vocal sounds via electricity lines.
Who is the real inventor of the telephone?
Scottish-born inventor Alexander Graham-Bell usually gets all the credit, but there are a few more names that might ring a bell. Credit is usually given to the Scottish-born scientist and engineer Alexander Graham Bell, who was granted a US patent for what he called an 'acoustic telegraph' in 1875.
How does a TelAutograph work?
TelAutograph, short-line telegraph used to communicate handwriting and sketches. At the transmitter the motion of the pen or stylus traces out the material to be transmitted, and this motion is converted into electrical signals that are transmitted to the receiver.
Who invented telephone in 1876?
Alexander Graham BellIt is not easy to determine who the inventor was. Both Alexander Graham Bell and Elisha Gray submitted independent patent applications concerning telephones to the patent office in Washington on February 14, 1876.
Where did Elisha Gray live?
BostonOhioHighland ParkElisha Gray/Places lived
Who invented the TV first?
Philo FarnsworthJohn Logie BairdCharles Francis JenkinsTelevision/Inventors
Who invented the radio?
Guglielmo MarconiNikola TeslaReginald FessendenWilliam DubilierRadio/Inventors
Who is the main inventor of television?
Philo Taylor Farnsworth IIPhilo Farnsworth, in full Philo Taylor Farnsworth II, (born August 19, 1906, Beaver, Utah, U.S.—died March 11, 1971, Salt Lake City, Utah), American inventor who developed the first all-electronic television system.
Who was Elisha Gray?
Elisha Gray, (born Aug. 2, 1835, Barnesville, Ohio, U.S.—died Jan. 21, 1901, Newtonville, Mass.), U.S. inventor and contestant with Alexander Graham Bell in a famous legal battle over the invention of the telephone.
What was the first device that Elisha Gray used?
Gray’s first device made use of a harmonic telegraph, the transmitter and receiver of which consisted of a set of metallic reeds tuned to different frequencies. An electromagnetic coil was…. …the same year, the founders, Elisha Gray and Enos N. Barton, moved the firm to Chicago.
Who was Alexander Graham Bell?
Alexander Graham Bell, Scottish-born American inventor, scientist, and teacher of the deaf whose foremost accomplishments were the invention of the telephone (1876) and the refinement of the phonograph (1886).….
