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U.S. patent 0,222,881 – Magneto-Electric Machines : Edison main dynamo. The device's nickname was the "long-legged Mary-Ann". This device has large bipolar magnets and is highly inefficient. U.S. patent 0,223,898 – Electric Lamp : Edison's incandescent light bulb invention. The original spiral carbon-filament is shown and repeatedly ...
Edison recognized the possible demand for a high-speed copying device after observing the incredible amount of document duplication required of merchants, lawyers, insurance companies, and those of similar occupations. [1] To satisfy this demand, Edison invented the electric pen, which uses a perforating function inspired by the printing telegraph.
Edison in 1861. Thomas Edison was born in 1847 in Milan, Ohio, but grew up in Port Huron, Michigan, after the family moved there in 1854. [8] He was the seventh and last child of Samuel Ogden Edison Jr. (1804–1896, born in Marshalltown, Nova Scotia) and Nancy Matthews Elliott (1810–1871, born in Chenango County, New York).
French, engineer and instrument maker; first of various motors; first motor translated linear "electromagnetic piston's" energy to wheel's rotary motion. See also Mouse mill motor. [6] [18] [20] [21] 1856, Werner Siemens: German, industrialist; invented generator with a double-T armature and slots windings. [3] [6] 1861–1864, James Clerk Maxwell
Edison's films were made by the Kinetograph Department of the Edison Manufacturing Company. [4] Edison's first moviemaking studio—and also the world's first—was the "Black Maria" in West Orange, New Jersey, where production of Kinetoscope films began in early 1893.
Electric power transmission, the tools and means of moving electricity far from where it is generated, date back to the late 19th century. They include the movement of electricity in bulk (formally called "transmission") and the delivery of electricity to individual customers ("distribution"). In the beginning, the two terms were used ...
By Jacquelyn Smith The job interview was born in 1921, when Thomas Edison created a written test to evaluate job candidates' knowledge. Since then, the process has come a long way.
Four companies (Edison Lamp Company, Edison Machine Works, and Bergmann & Company with the patent-holding company, Edison Electric Light Company) in various Tri-state area locations holding Edison's various interests merge as Edison General Electric Company: 1890 Edison General Electric Company acquires the Sprague Electric Railway and Motor ...