Gray already lost at the age of 12 years its father and had thereby the school prematurely to leave. He learned first the handicraft of a Grobschmieds, a Carpenter and a Bootsbauers. it occurred 1856 the Oberlin college Ohio, where it studied 5 years physics. He became a teacher at this institute later and at the Ripon college in Wisconsin.

Achievements

Its first patent for telegraphic equipment submitted Gray 1867, this followed 50 further, usually on the area of the telephone and telegraph engineering. 1869 moved to Gray to Cleveland, Ohio and created an enterprise for electrical articles, which was shifted later to Chicago and with the Western Electric Manufacturing company to the Western Electric company united. 1878 withdrew Gray from the company, in order to dedicate itself to its studies and the utilization of its inventions, which were above all relays and Drucktelegrafen.

1875 began Gray of attempts with the electrical transmission of tones, whose result was laid down 1876 in a request for patent. It did not receive this patent however, because Alexander Graham Bell submitted a patent application on the same object two hours before Gray. In a law case it did not succeed to Gray and the Western Electric company allied with it to intersperse its requirements against Bell.

Another invention Grays is demonstrated the Teleautograph, 1893 on the Chicagoer world exhibition, on whose improvement it worked just like at the development of an underwater sound signal system up to its last Lebensjahren. The impact of the Teleautographen, the forerunner of the modern fax equipment, described Gray in such a way:

"“The write apparatus to places of departure can be in-handed in possibly a house, Comptoir, room, into a telegraphic or telephone wire line, be attached on a simple desk or desk. A usual pencil serves for the minute. At its point rectangular to each other two seidene cords are fastened, which, connected with the apparatus, which follows movement of the pencil exactly and which, thus in the residence of the addressee electrically control receipt pin at the other end of the line in remote city. Usual 5 tariff the broad writing paper on the task station line for line runs is electrically continued to push over a role fastened to that apparatuses and, similarly as with the well-known type Writer, or typewriter, with pressure onto a lever. At the receipt end of the addressee two aluminum arms hold the hair-fine glass tube, which serves the memo healing as feather/spring for the minute and, by the electric current of the sender out led, itself at the same time and in same direction and expansion with each movement of the far pencil at the outlet end moves, continual fed with ink, in such a manner that their minute is in ink completely a replica its, which the author writes or notes at the outlet end with the pencil. Signatures, stenographic indications and other hieroglyphics can be conveyed also drahtlich."”

See also invention of the telephone

Articles in category "Elisha Gray"

We found here 45 articles.