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1 Brush, Charles Francis
[br]b. 17 March 1849 Euclid, Michigan, USAd. 15 June 1929 Cleveland, Ohio, USA[br]American engineer, inventor of a multiple electric arc lighting system and founder of the Brush Electric Company.[br]Brush graduated from the University of Michigan in 1869 and worked for several years as a chemist. Believing that electric arc lighting would be commercially successful if the equipment could be improved, he completed his first dynamo in 1875 and a simplified arc lamp. His original system operated a maximum of four lights, each on a separate circuit, from one dynamo. Brush envisaged a wider market for his product and by 1879 had available on arc lighting system principally intended for street and other outdoor illumination. He designed a dynamo that generated a high voltage and which, with a carbon-pile regulator, provided an almost constant current permitting the use of up to forty lamps on one circuit. He also improved arc lamps by incorporating a slipping-clutch regulating mechanism and automatic means of bringing into use a second set of carbons, thereby doubling the period between replacements.Brush's multiple electric arc lighting system was first demonstrated in Cleveland and by 1880 had been adopted in a number of American cities, including New York, Boston and Philadelphia. It was also employed in many European towns until incandescent lamps, for which the Brush dynamo was unsuitable, came into use. To market his apparatus, Brush promoted local lighting companies and thereby secured local capital.[br]Principal Honours and DistinctionsChevalier de la Légion d'honneur 1881. American Academy of Arts and Sciences Rumford Medal 1899. American Institute of Electrical Engineers Edison Medal 1913.Bibliography18 May 1878, British patent no. 2,003 (Brush dynamo).11 March 1879, British patent no. 947 (arc lamp).26 February 1880, British patent no. 849 (current regulator).Further ReadingJ.W.Urquhart, 1891, Electric Light, London (for a detailed description of the Brush system).H.C.Passer, 1953, The Electrical Manufacturers: 1875–1900, Cambridge, Mass., pp. 14– 21 (for the origins of the Brush Company).S.Steward, 1980, in Electrical Review, 206:34–5 (a short account).See also: Hammond, RobertGW -
2 Electricity
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3 Public utilities
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Brush, Charles Francis — ▪ American inventor and industrialist born March 17, 1849, Euclid, Ohio, U.S. died June 15, 1929, Cleveland U.S. inventor and industrialist who devised an electric (electric arc) arc lamp and a generator that produced a variable voltage… … Universalium
Charles Francis Brush — (* 17. März 1849; † 15. Juni 1929) war ein US amerikanischer Erfinder, Unternehmer und Philanthrop. Geboren in Euclid Township, Ohio, wuchs Brush auf einer Farm auf, welche ca. 10 Meilen von … Deutsch Wikipedia
Charles Francis Brush — Charles Francis Brush. Charles Francis Brush (17 de marzo de 1849 – 15 de junio de 1929) fue un inventor, emprendedor y filántropo estadounidense. Nacido en Euclid (Ohio, Brush fue educado en una granja a 10 millas de Cleveland. De joven mostró… … Wikipedia Español
Charles Francis Brush — est l’un des fondateurs de l’industrie électrique américaine. Il inventa, entre autres, une dynamo à courant continu très efficace employée dans le réseau électrique public, la première lampe à arc commerciale, et une méthode efficace de… … Wikipédia en Français
Charles F. Brush — Charles Francis Brush Born March 17, 1849(1849 03 17) Euclid, Ohio … Wikipedia
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