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1 overhead-wire locomotive
English-Russian big polytechnic dictionary > overhead-wire locomotive
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2 overhead wire locomotive
English-Russian dictionary of geology > overhead wire locomotive
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3 overhead (wire) locomotive
Горное дело: контактный электровоз, троллейный электровозУниверсальный англо-русский словарь > overhead (wire) locomotive
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4 overhead wire locomotive
Геология: контактный электровозУниверсальный англо-русский словарь > overhead wire locomotive
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5 overhead-wire locomotive
Макаров: пантографный электровозУниверсальный англо-русский словарь > overhead-wire locomotive
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6 overhead-wire locomotive
Англо русский политехнический словарь > overhead-wire locomotive
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7 overhead locomotive
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8 continuous-current locomotive
English-Russian big polytechnic dictionary > continuous-current locomotive
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9 converter locomotive
English-Russian big polytechnic dictionary > converter locomotive
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10 dc locomotive
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11 express locomotive
English-Russian big polytechnic dictionary > express locomotive
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12 rectifier locomotive
English-Russian big polytechnic dictionary > rectifier locomotive
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13 split-phase locomotive
English-Russian big polytechnic dictionary > split-phase locomotive
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14 пантографный электровоз
Русско-английский политехнический словарь > пантографный электровоз
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15 контактный электровоз
1) Geology: over head wire locomotive, overhead wire locomotive2) Engineering: trolley locomotive, trolley-wire locomotiveУниверсальный русско-английский словарь > контактный электровоз
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16 электровоз
м. electric locomotive -
17 троллейный электровоз
1) Engineering: trolley locomotive2) Mining: electric loco, electric locomotive, overhead (wire) loco, overhead (wire) locomotive, trolley locoУниверсальный русско-английский словарь > троллейный электровоз
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18 пантографный электровоз
Makarov: overhead-wire locomotiveУниверсальный русско-английский словарь > пантографный электровоз
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19 Sprague, Frank Julian
[br]b. 25 July 1857 Milford, Connecticut, USAd. 25 October 1934 New York, USA[br]American electrical engineer and inventor, a leading innovator in electric propulsion systems for urban transport.[br]Graduating from the United States Naval Academy, Annapolis, in 1878, Sprague served at sea and with various shore establishments. In 1883 he resigned from the Navy and obtained employment with the Edison Company; but being convinced that the use of electricity for motive power was as important as that for illumination, in 1884 he founded the Sprague Electric Railway and Motor Company. Sprague began to develop reliable and efficient motors in large sizes, marketing 15 hp (11 kW) examples by 1885. He devised the method of collecting current by using a wooden, spring-loaded rod to press a roller against the underside of an overhead wire. The installation by Sprague in 1888 of a street tramway on a large scale in Richmond, Virginia, was to become the prototype of the universally adopted trolley system with overhead conductor and the beginning of commercial electric traction. Following the success of the Richmond tramway the company equipped sixty-seven other railways before its merger with Edison General Electric in 1890. The Sprague traction motor supported on the axle of electric streetcars and flexibly mounted to the bogie set a pattern that was widely adopted for many years.Encouraged by successful experiments with multiple-sheave electric elevators, the Sprague Elevator Company was formed and installed the first set of high-speed passenger cars in 1893–4. These effectively displaced hydraulic elevators in larger buildings. From experience with control systems for these, he developed his system of multiple-unit control for electric trains, which other engineers had considered impracticable. In Sprague's system, a master controller situated in the driver's cab operated electrically at a distance the contactors and reversers which controlled the motors distributed down the train. After years of experiment, Sprague's multiple-unit control was put into use for the first time in 1898 by the Chicago South Side Elevated Railway: within fifteen years multiple-unit operation was used worldwide.[br]Principal Honours and DistinctionsPresident, American Institute of Electrical Engineers 1892–3. Franklin Institute Elliot Cresson Medal 1904, Franklin Medal 1921. American Institute of Electrical Engineers Edison Medal 1910.Bibliography1888, "The solution of municipal rapid transit", Trans. AIEE 5:352–98. See "The multiple unit system for electric railways", Cassiers Magazine, (1899) London, repub. 1960, 439–460.1934, "Digging in “The Mines of the Motor”", Electrical Engineering 53, New York: 695–706 (a short autobiography).Further ReadingLionel Calisch, 1913, Electric Traction, London: The Locomotive Publishing Co., Ch. 6 (for a near-contemporary view of Sprague's multiple-unit control).D.C.Jackson, 1934, "Frank Julian Sprague", Scientific Monthly 57:431–41.H.C.Passer, 1952, "Frank Julian Sprague: father of electric traction", in Men of Business, ed. W. Miller, Cambridge, Mass., pp. 212–37 (a reliable account).——1953, The Electrical Manufacturers: 1875–1900, Cambridge, Mass. P.Ransome-Wallis (ed.), 1959, The Concise Encyclopaedia of World RailwayLocomotives, London: Hutchinson, p. 143..John Marshall, 1978, A Biographical Dictionary of Railway Engineers, Newton Abbot: David \& Charles.GW / PJGR -
20 Siemens, Dr Ernst Werner von
[br]b. 13 December 1816 Lenthe, near Hanover, Germanyd. 6 December 1892 Berlin, Germany[br]German pioneer of the dynamo, builder of the first electric railway.[br]Werner von Siemens was the eldest of a large family and after the early death of his parents took his place at its head. He served in the Prussian artillery, being commissioned in 1839, after which he devoted himself to the study of chemistry and physics. In 1847 Siemens and J.G. Halske formed a company, Telegraphen-Bauanstalt von Siemens und Halske, to manufacture a dial telegraph which they had developed from an earlier instrument produced by Charles Wheatstone. In 1848 Siemens obtained his discharge from the army and he and Halske constructed the first long-distance telegraph line on the European continent, between Berlin and Frankfurt am Main.Werner von Siemens's younger brother, William Siemens, had settled in Britain in 1844 and was appointed agent for the Siemens \& Halske company in 1851. Later, an English subsidiary company was formed, known from 1865 as Siemens Brothers. It specialized in manufacturing and laying submarine telegraph cables: the specialist cable-laying ship Faraday, launched for the purpose in 1874, was the prototype of later cable ships and in 1874–5 laid the first cable to run direct from the British Isles to the USA. In charge of Siemens Brothers was another brother, Carl, who had earlier established a telegraph network in Russia.In 1866 Werner von Siemens demonstrated the principle of the dynamo in Germany, but it took until 1878 to develop dynamos and electric motors to the point at which they could be produced commercially. The following year, 1879, Werner von Siemens built the first electric railway, and operated it at the Berlin Trades Exhibition. It comprised an oval line, 300 m (985 it) long, with a track gauge of 1 m (3 ft 3 1/2 in.); upon this a small locomotive hauled three small passenger coaches. The locomotive drew current at 150 volts from a third rail between the running rails, through which it was returned. In four months, more than 80,000 passengers were carried. The railway was subsequently demonstrated in Brussels, and in London, in 1881. That same year Siemens built a permanent electric tramway, 1 1/2 miles (2 1/2 km) long, on the outskirts of Berlin. In 1882 in Berlin he tried out a railless electric vehicle which drew electricity from a two-wire overhead line: this was the ancestor of the trolleybus.In the British Isles, an Act of Parliament was obtained in 1880 for the Giant's Causeway Railway in Ireland with powers to work it by "animal, mechanical or electrical power"; although Siemens Brothers were electrical engineers to the company, of which William Siemens was a director, delays in construction were to mean that the first railway in the British Isles to operate regular services by electricity was that of Magnus Volk.[br]Principal Honours and DistinctionsHonorary doctorate, Berlin University 1860. Ennobled by Kaiser Friedrich III 1880, after which he became known as von Siemens.Further ReadingS.von Weiher, 1972, "The Siemens brothers, pioneers of the electrical age in Europe", Transactions of the Newcomen Society 45 (describes the Siemens's careers). C.E.Lee, 1979, The birth of electric traction', Railway Magazine (May) (describes Werner Siemens's introduction of the electric railway).Transactions of the Newcomen Society (1979) 50: 82–3 (describes Siemens's and Halske's early electric telegraph instruments).Transactions of the Newcomen Society (1961) 33: 93 (describes the railless electric vehicle).PJGRBiographical history of technology > Siemens, Dr Ernst Werner von
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