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1 Page, Charles Grafton
[br]b. 25 January 1812 Salem, Massachusetts, USAd. 5 May 1868 Washington, DC, USA[br]American scientist and inventor of electric motors.[br]Page graduated from Harvard in 1832 and subsequently attended Boston Medical School. He began to practise in Salem and also engaged in experimental research in electricity, discovering the improvement effected by substituting bundles of iron wire for solid bars in induction coils. He also created a device which he termed a Dynamic Multiplier, the prototype of the auto-transformer. Following a period in medical practice in Virginia, in 1841 he became one of the first two principal examiners in the United States Patent Office. He also held the Chair of Chemistry and Pharmacy at Columbian College, later George Washington University, between 1844 and 1849.A prolific inventor, Page completed several large electric motors in which reciprocating action was converted to rotary motion, and invested an extravagant sum of public money in a foredoomed effort to develop a 10-ton electric locomotive powered by primary batteries. This was unsuccessfully demonstrated in April 1851 on the Washington-Baltimore railway and seriously damaged his reputation. Page approached Thomas Davenport with an offer of partnership, but Davenport refused.After leaving the Patent Office in 1852 he became a patentee himself and advocated the reform of the patent procedures. Page returned to the Patent Office in 1861, and later persuaded Congress to pass a special Act permitting him to patent the induction coil. This was the cause, after his death, of protracted and widely publicized litigation.[br]Bibliography1867, History of Induction: The American Claim to the Induction Coil and itsElectrostatic Developments, Washington, DC.Further ReadingR.C.Post, 1976, Physics, Patents and Politics, New York (a biography which treats Page as a focal point for studying the American patent system).——1976, "Stray sparks from the induction coil: the Volta prize and the Page patent", Proceedings of the Institute of Electrical Engineers 64: 1,279–86 (a short account).W.J.King, 1962, The Development of Electrical Technology in the 19th Century, Washington, DC: Smithsonian Institution, Paper 28.GW -
2 Electricity
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3 Railways and locomotives
Biographical history of technology > Railways and locomotives
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Charles Grafton Page — (January 25, 1812 in Salem, Massachusetts – May 5, 1868 in Washington, D.C.) was an American electrical experimenter and inventor, physician, patent examiner, patent advocate, and professor of chemistry. Charles Grafton Page … Wikipedia
Charles Grafton Page — (* 25. Januar 1812 in Salem, Massachusetts; † 5. Mai 1868 in Washington D. C.) war ein US amerikanischer Erfinder auf dem Gebiet der Elektrotechnik. Inhaltsverzeichnis 1 Leben 2 Bedeutung 3 … Deutsch Wikipedia
Charles Page (disambiguation) — Charles Page is the name of: Charles Page (1860 1926), American philanthropist, creator of Sand Springs Home for orphans and widows Charles Grafton Page (1812 1868), American inventor Charles H. Page (1843 1912), U.S. Representative from Rhode… … Wikipedia
Page — ([ˈpaːʒə], frz. ‚Edelknabe‘) bezeichnet: an europäischen Höfen im Mittelalter und bis um 1918 einen jungen Adligen im fürstlichen Dienst, siehe Schildknappe heute einen uniformierten Hoteldiener Page ([peɪdʒ], engl. ‚Seite‘) bezeichnet: Webseite … Deutsch Wikipedia
Page — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Sur les autres projets Wikimedia : « page », sur le Wiktionnaire (dictionnaire universel) Sommaire 1 … Wikipédia en Français
Charles FitzRoy — may refer to: Charles FitzRoy, 2nd Duke of Cleveland (1662–1730), 18th century nobleman Charles FitzRoy, 2nd Duke of Grafton (1683–1757), nobleman who was Lord Lieutenant of Ireland Lord Charles FitzRoy (1718–1739), fourth son of Charles FitzRoy … Wikipedia
Charles FitzRoy, 3rd Baron Southampton — (28 September 1804 – 16 July 1872) was a British peer. The son of George FitzRoy, 2nd Baron Southampton, he succeeded his father in 1810. On 23 February 1826, he married Harriet Stanhope, granddaughter of William Stanhope, 2nd Earl of Harrington; … Wikipedia
Grafton (Australie) — Pour les articles homonymes, voir Grafton. Grafton Le pont de Grafton sur la rivière Clarenc … Wikipédia en Français
Charles H. Pinkham — Born 1844 Grafton, Massachusetts Died 1920 (aged 75–76) Allegiance United States of America Union … Wikipedia
Grafton (Virginie-Occidentale) — Pour les articles homonymes, voir Grafton. 39° 20′ 30″ N 80° 01′ 11″ W … Wikipédia en Français
Charles Augustus FitzRoy — Pour les articles homonymes, voir Fitzroy (homonymie). Sir Charles Fitzroy Sir Charles Augustus FitzRoy (10 juin 1796 – 16 février … Wikipédia en Français
