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Seven of Mr. Howell's hand-made 1890 patent trial "tar putty" lamps survive today in a collection of rare, historic lamps discovered in 2004. [8] In 1893 Mr. Howell was appointed chief engineer of the Edison Lamp Works of the General Electric Company, which had taken over the Edison lamp works, holding that position until his retirement in 1931.
Bell and Howell is a United States brand of cameras, lenses, and motion picture machinery. It was originally founded as a company in 1907, and headquartered in Wheeling, Illinois . The company was acquired by Böwe Systec in 2003.
The modern electric bell mechanism had its origin in vibrating "contact breaker" or interrupter mechanisms devised to break the primary current in induction coils. [5] Vibrating "hammer" interrupters were invented by Johann Philipp Wagner (1839) and Christian Ernst Neeff (1847), and was developed into a buzzer by Froment (1847).
In the mid-1950s, CEC had split off a subsidiary, Consolidated Systems Corporation, to produce custom instruments and systems. Lawrence G. Hall carried CEC mass spectrometer know-how to CSC and led their team to put the first mass spectrometer in space on a National Aeronautics and Space Administration upper atmosphere research satellite, Explorer 17, in 1963.
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Russian engineer Pavel Yablochkov invented the electric carbon arc lamp. 1876: Scottish inventor Alexander Graham Bell patented the telephone. 1877: American inventor Thomas Edison invented the phonograph. 1877: German industrialist Werner von Siemens developed a primitive loudspeaker. 1878: First electric street lighting in Paris, France 1878
Alexander Graham Bell (/ ˈ ɡ r eɪ. ə m /, born Alexander Bell; March 3, 1847 – August 2, 1922) [4] was a Scottish-born [N 1] Canadian-American inventor, scientist, and engineer who is credited with patenting the first practical telephone. He also co-founded the American Telephone and Telegraph Company (AT&T) in 1885. [7]
With Edwin J. Houston, a former teacher and later colleague of Thomson's at Central High School, Thomson founded the Thomson-Houston Electric Company.Notable inventions created by Thomson during this period include an arc-lighting system, an automatically regulated three-coil dynamo, a magnetic lightning arrester, and a local power transformer. [4]