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41 station
станция; пункт; пост; радиостанция; место ( по боевому расчету) ; позиция; точка подвески ( вооружения на самолете) ; место в строю (ЛА) ; место службы; место дислокации; ркт. кабина; Бр. авиационная станция [база]; размещать, базировать; ставить на местоairborne (communications) relay station — воздушная радиорелейная станция [пункт]
— alternate master station— data-relaying station— fueling station— gasoline service station— launching station -
42 unit
1) агрегат; установка2) блок; секция; узел; элемент; звено3) объект4) предмет6) единица || единичный7) шкала•unit in the large — мат. единица в целом
- auxiliary power unitto take as a unit — мат. принимать за единицу
- box unit- ground power unit - ground power-supply unit - infra-red heating unit - load distribution unit - load following unit - magnetic variation unit - nuclear steam-raising unit - pulse gating unit - pulse shaping unit - scrap breaking unit - service data unit - servo control unit - shared-path control unit - thermal imaging unit - threshold logic unit - two-phase milking unit -
43 packing
1. n упаковка, укладка; укупоркаcorrosion-proof packing — упаковка, защищающая от ржавчины
2. n укладка3. n прокладка, прокладочный материал4. n тех. набивка, уплотнение5. n консервирование6. n нагромождение, скопление; наплыв7. n радио спекание порошка8. n горн. закладка9. n тлв. сжатие участка изображения10. n хим. башенная насадка11. n с. -х. прикатывание12. n с. -х. уплотнение13. n с. -х. тампонада, тампонирование14. n с. -х. тампон, перевязочный материалСинонимический ряд:1. filling (noun) filling; padding; stuffing; wadding; waste2. packaging (noun) arrangement; consignment; disposal; disposition; grading; laying away; packaging; preparation; sorting3. carrying (verb) bearing; bucking; carrying; conveying; ferrying; lugging; toting; transporting4. loading (verb) charging; choking; cramming; crowding; filling; freighting; heaping; jamming; loading; mobbing; piling; stuffing5. stowing (verb) bestowing; storing; stowing; warehousing -
44 product rack
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45 Gibbons, John
SUBJECT AREA: Metallurgy[br]fl. 1800–50 Staffordshire, England[br]English ironmaster who introduced the round hearth in the blastfurnace.[br]Gibbons was an ironmaster in the Black Country, South Staffordshire, in charge of six blast furnaces owned by the family business. Until Gibbons's innovation in 1832, small changes in the form of the furnace had at times been made, but no one had seriously questioned the square shape of the hearth. Gibbons noticed that a new furnace often worked poorly by improved as time went on. When it was "blown out", i.e. taken out of commission, he found that the corners of the hearth had been rounded off and the sides gouged out, so that it was roughly circular in shape. Gibbons wisely decided to build a blast furnace with a round hearth alongside an existing one with a traditionally shaped hearth and work them in exactly the same conditions. The old furnace produced 75 tons of iron in a week, about normal for the time, while the new one produced 100 tons. Further improvements followed and in 1838 a fellow ironmaster in the same district, T. Oakes, considerably enlarged the furnace, its height attaining no less than 60ft (18m). As a result, output soared to over 200 tons a week. Most other ironmasters adopted the new form with enthusiasm and it proved to be the basis for the modern blast furnace. Gibbons made another interesting innovation: he began charging his furnace with the "rubbish", slag or cinder, from earlier ironmaking operations. It contained a significant amount of iron and was cheaper to obtain than iron ore, as it was just lying around in heaps. Some ironmasters scorned to use other people's throw-outs, but Gibbons sensibly saw it as a cheap source of iron; it was a useful source for some years during the nineteenth century but its use died out when the heaps were used up. Gibbons published an account of his improvements in ironmaking in a pamphlet entitled Practical Remarks on the Construction of the Staffordshire Blast Furnace.[br]Bibliography1839, Practical Remarks on the Construction of the Staffordshire Blast Furnace, Birmingham; reprinted 1844.Further ReadingJ.Percy, 1864, Metallurgy. Iron and Steel, London, p. 476. W.K.V.Gale, 1969, Iron and Steel, London: Longmans, pp. 44–6.LRD -
46 Hopkinson, John
[br]b. 27 July 1849 Manchester, Englandd. 27 August 1898 Petite Dent de Veisivi, Switzerland[br]English mathematician and electrical engineer who laid the foundations of electrical machine design.[br]After attending Owens College, Manchester, Hopkinson was admitted to Trinity College, Cambridge, in 1867 to read for the Mathematical Tripos. An appointment in 1872 with the lighthouse department of the Chance Optical Works in Birmingham directed his attention to electrical engineering. His most noteworthy contribution to lighthouse engineering was an optical system to produce flashing lights that distinguished between individual beacons. His extensive researches on the dielectric properties of glass were recognized when he was elected to a Fellowship of the Royal Society at the age of 29. Moving to London in 1877 he became established as a consulting engineer at a time when electricity supply was about to begin on a commercial scale. During the remainder of his life, Hopkinson's researches resulted in fundamental contributions to electrical engineering practice, dynamo design and alternating current machine theory. In making a critical study of the Edison dynamo he developed the principle of the magnetic circuit, a concept also arrived at by Gisbert Kapp around the same time. Hopkinson's improvement of the Edison dynamo by reducing the length of the field magnets almost doubled its output. In 1890, in addition to-his consulting practice, Hopkinson accepted a post as the first Professor of Electrical Engineering and Head of the Siemens laboratory recently established at King's College, London. Although he was not involved in lecturing, the position gave him the necessary facilities and staff and student assistance to continue his researches. Hopkinson was consulted on many proposals for electric traction and electricity supply, including schemes in London, Manchester, Liverpool and Leeds. He also advised Mather and Platt when they were acting as contractors for the locomotives and generating plant for the City and South London tube railway. As early as 1882 he considered that an ideal method of charging for the supply of electricity should be based on a two-part tariff, with a charge related to maximum demand together with a charge for energy supplied. Hopkinson was one the foremost expert witnesses of his day in patent actions and was himself the patentee of over forty inventions, of which the three-wire system of distribution and the series-parallel connection of traction motors were his most successful. Jointly with his brother Edward, John Hopkinson communicated the outcome of his investigations to the Royal Society in a paper entitled "Dynamo Electric Machinery" in 1886. In this he also described the later widely used "back to back" test for determining the characteristics of two identical machines. His interest in electrical machines led him to more fundamental research on magnetic materials, including the phenomenon of recalescence and the disappearance of magnetism at a well-defined temperature. For his work on the magnetic properties of iron, in 1890 he was awarded the Royal Society Royal Medal. He was a member of the Alpine Club and a pioneer of rock climbing in Britain; he died, together with three of his children, in a climbing accident.[br]Principal Honours and DistinctionsFRS 1878. Royal Society Royal Medal 1890. President, Institution of Electrical Engineers 1890 and 1896.Bibliography7 July 1881, British patent no. 2,989 (series-parallel control of traction motors). 27 July 1882, British patent no. 3,576 (three-wire distribution).1901, Original Papers by the Late J.Hopkinson, with a Memoir, ed. B.Hopkinson, 2 vols, Cambridge.Further ReadingJ.Greig, 1970, John Hopkinson Electrical Engineer, London: Science Museum and HMSO (an authoritative account).—1950, "John Hopkinson 1849–1898", Engineering 169:34–7, 62–4.GW -
47 Li Gao (Li Kao)
SUBJECT AREA: Ports and shipping[br]fl. 752/820 China[br]Chinese physicist, technologist and patron of engineers.[br]Li Gao was Prince of Cao (Tshao). He was interested in acoustics and carried out experiments on both hydrostatic and air pressure. He constructed "trick" hydrostatic vessels that could take up different positions according to the amount of water in them. Such vessels had been known since the third century BC and were popular at court for over a thousand years: Li's were made of lacquered wood, c. 790, probably in quantity. He made successful use of paddle warships operated by treadmills. Similar vessels may have been in use as early as the late fifth century, but this is not at all certain. Li Gao's ships are therefore the first practical achievement of an idea for ship propulsion that, probably independently, had been mooted but not realized in early Byzantine times in Europe. His experiments with this type of vessel were made during 782 to 785, while he was Governor of Hungchow. It was said that the ships "went like the wind", faster than a charging horse.[br]Further ReadingJ.Needham, Science and Civilisation in China, Cambridge: Cambridge University Press, 1962, Vols IV. 1, pp. 38, 62; 1965, IV. 2, pp. 417–18, 433, 435; Clerks and Craftsmen in China and the West, 1970, pp. 25, 127–8.LRD -
48 Parry, George
SUBJECT AREA: Metallurgy[br]fl. 1800–1850 Wales[br]Welsh ironmaker and inventor of the bell and hopper for blastfurnaces.[br]Until the mid-nineteenth century, blast furnaces were open at the top to facilitate loading of the iron ore, fuel and flux (the charge). However, that arrangement allowed the hot gases produced in the furnace to escape, whereas they could have been used to heat boilers or the incoming air blast. Attempts had been made to capture the fugitive gases, but they had all failed until George Parry devised his bell and hopper equipment for dosing the throat or top of the furnace. He fixed an inverted cone or hopper inside the throat and arranged inside it a cast-iron bell that could be raised or lowered. When in the raised position, it was in contact with the underside of the hopper, thus sealing the furnace. The hot gases could then be led off through a large pipe to do useful work. The charge was dropped onto the bell, and when enough had accumulated there the bell was lowered, allowing the charge to fall into the furnace. The gas escaped only for the brief period that the bell was lowered. The advantages of this arrangement were soon realized by other ironmasters and it was quite rapidly, and then generally, adopted. The device was still in use in the 1990s, with modifications.[br]Bibliography1858, "On the principal causes of derangements in blast furnaces", Proceedings of the South Wales Institute of Engineers 1:26–39 (describes his improvements to the blast furnace), 28 ff. (relates to the improvements in the charging arrangements).Further ReadingW.K.V.Gale, 1969, Iron and Steel, London: Longmans, p. 52.LRD
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