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1 Davenport, Thomas
SUBJECT AREA: Electricity[br]b. 9 July 1802 Williamstown, Vermont, USAd. 6 July 1851 Salisbury, Vermont, USA[br]American craftsman and inventor who constructed the first rotating electrical machines in the United States.[br]When he was 14 years old Davenport was apprenticed to a blacksmith for seven years. At the close of his apprenticeship in 1823 he opened a blacksmith's shop in Brandon, Vermont. He began experimenting with electromagnets after observing one in use at the Penfield Iron Works at Crown Point, New York, in 1831. He saw the device as a possible source of power and by July 1834 had constructed his first electric motor. Having totally abandoned his regular business, Davenport built and exhibited a number of miniature machines; he utilized an electric motor to propel a model car around a circular track in 1836, and this became the first recorded instance of an electric railway. An application for a patent and a model were destroyed in a fire at the United States Patent Office in December 1836, but a second application was made and Davenport received a patent the following year for Improvements in Propelling Machinery by Magnetism and Electromagnetism. A British patent was also obtained. A workshop and laboratory were established in New York, but Davenport had little financial backing for his experiments. He built a total of over one hundred motors but was defeated by the inability to obtain an inexpensive source of power. Using an electric motor of his own design to operate a printing press in 1840, he undertook the publication of a journal, The Electromagnet and Mechanics' Intelligencer. This was the first American periodical on electricity, but it was discontinued after a few issues. In failing health he retired to Vermont where in the last year of his life he continued experiments in electromagnetism.[br]Bibliography1837, US patent no. 132, "Improvements in Propelling Machinery by Magnetism and Electromagnetism".6 June 1837 British patent no. 7,386.Further ReadingF.L.Pope, 1891, "Inventors of the electric motor with special reference to the work of Thomas Davenport", Electrical Engineer, 11:1–5, 33–9, 65–71, 93–8, 125–30 (the most comprehensive account).Annals of Electricity (1838) 2:257–64 (provides a description of Davenport's motor).W.J.King, 1962, The Development of Electrical Technology in the 19th Century, Washington, DC: Smithsonian Institution, Paper 28, pp. 263–4 (a short account).GW -
2 Davenport Downs, Queensland, Australia
Airports: DVPУниверсальный русско-английский словарь > Davenport Downs, Queensland, Australia
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3 Davenport Rock Island and North Western RailRoad Company
Railway term: DRIУниверсальный русско-английский словарь > Davenport Rock Island and North Western RailRoad Company
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4 Davenport-Root method
Англо-русский словарь промышленной и научной лексики > Davenport-Root method
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5 John Davenport
Names and surnames: JD -
6 TV-4, Rock Island, Illinois/ Davenport, Iowa
TV: WHBFУниверсальный русско-английский словарь > TV-4, Rock Island, Illinois/ Davenport, Iowa
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7 mejatulis kecil
davenport -
8 meja tulis kecil
davenport -
9 sofá tapizado
• davenport -
10 Давенпорт
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11 Давенпорт
Русско-английский словарь по прикладной математике и механике > Давенпорт
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12 Дэвенпорт
Русско-английский словарь по прикладной математике и механике > Дэвенпорт
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13 изящное бюро
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14 divan
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15 sofá cama
• davenport• settee-bed• sofa bed• sofa convertible into bed• studio couch -
16 кушетка
couch, ам. davenport* * *кушѐтка,ж., -и couch, амер. davenport.* * *couch; davenport; sofa{soufx}* * *couch, ам. davenport -
17 Давенпорт
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18 Sofa
n; -s, -s sofa, settee* * *das Sofasettee; davenport; couch; sofa* * *So|fa ['zoːfa]nt -s, -ssofa, settee (esp Brit)* * *(a kind of long seat, stuffed and with a back and arms: We were sitting on the sofa.) sofa* * *So·fa<-s, -s>[ˈzo:fa]* * *das; Sofas, Sofas sofa; settee* * ** * *das; Sofas, Sofas sofa; settee* * *-s n.couch n.davenport n.settee n.sofa n. -
19 kanepe
n. couch, sofa, davenport, lounge, settee, canape* * *1. couch 2. davenport 3. sofa bed 4. studio couch 5. couch (n.) -
20 kirjoituspöytä
yks.nom. kirjoituspöytä; yks.gen. kirjoituspöydän; yks.part. kirjoituspöytää; yks.ill. kirjoituspöytään; mon.gen. kirjoituspöytien kirjoituspöytäin; mon.part. kirjoituspöytiä; mon.ill. kirjoituspöytiindavenport (noun)desk (noun)writing-table (noun)* * *• writing-table• writing table• desk• bureau• davenport
См. также в других словарях:
Davenport — ist der Name folgender Orte: in den USA: Bistum Davenport, Iowa Davenport (Arkansas) Davenport (Florida) Davenport (Iowa) Davenport (Kalifornien) Davenport (Nebraska) Davenport (New York) Davenport (North Dakota) Davenport (Oklahoma) Davenport… … Deutsch Wikipedia
Davenport — could refer to: Contents 1 Places 2 People 3 Furniture 4 Other uses 5 See also … Wikipedia
Davenport — • Diocese erected 8 May, 1881, in the four southern tiers of counties in Iowa Catholic Encyclopedia. Kevin Knight. 2006. Davenport Davenport … Catholic encyclopedia
Davenport — Davenport, NE U.S. village in Nebraska Population (2000): 339 Housing Units (2000): 180 Land area (2000): 0.660761 sq. miles (1.711364 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.660761 sq. miles (1.711364 … StarDict's U.S. Gazetteer Places
Davenport, FL — U.S. city in Florida Population (2000): 1924 Housing Units (2000): 913 Land area (2000): 1.563534 sq. miles (4.049535 sq. km) Water area (2000): 0.061506 sq. miles (0.159300 sq. km) Total area (2000): 1.625040 sq. miles (4.208835 sq. km) FIPS… … StarDict's U.S. Gazetteer Places
Davenport, IA — U.S. city in Iowa Population (2000): 98359 Housing Units (2000): 41350 Land area (2000): 62.790723 sq. miles (162.627219 sq. km) Water area (2000): 2.149889 sq. miles (5.568187 sq. km) Total area (2000): 64.940612 sq. miles (168.195406 sq. km)… … StarDict's U.S. Gazetteer Places
Davenport, ND — U.S. city in North Dakota Population (2000): 261 Housing Units (2000): 92 Land area (2000): 0.124807 sq. miles (0.323249 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.124807 sq. miles (0.323249 sq. km) FIPS… … StarDict's U.S. Gazetteer Places
Davenport, NE — U.S. village in Nebraska Population (2000): 339 Housing Units (2000): 180 Land area (2000): 0.660761 sq. miles (1.711364 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.660761 sq. miles (1.711364 sq. km) FIPS… … StarDict's U.S. Gazetteer Places
Davenport, OK — U.S. town in Oklahoma Population (2000): 881 Housing Units (2000): 401 Land area (2000): 0.814052 sq. miles (2.108384 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.814052 sq. miles (2.108384 sq. km) FIPS… … StarDict's U.S. Gazetteer Places
Davenport, WA — U.S. city in Washington Population (2000): 1730 Housing Units (2000): 763 Land area (2000): 1.513121 sq. miles (3.918964 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.513121 sq. miles (3.918964 sq. km) FIPS… … StarDict's U.S. Gazetteer Places
Davenport — Dav en*port, n. [From the name of the original maker. Encyc. Dict.] A kind of small writing table, generally somewhat ornamental, and forming a piece of furniture for the parlor or boudoir. [1913 Webster] A much battered davenport in one of the… … The Collaborative International Dictionary of English