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1 сопротивление движению локомотива
Russian-English dictionary of railway terminology > сопротивление движению локомотива
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2 сопротивление движению локомотива
Русско-английский политехнический словарь > сопротивление движению локомотива
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3 сопротивление движению локомотива
Engineering: locomotive resistanceУниверсальный русско-английский словарь > сопротивление движению локомотива
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4 сопротивление бортовой качке
Русско-английский военно-политический словарь > сопротивление бортовой качке
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5 Gresley, Sir Herbert Nigel
[br]b. 19 June 1876 Edinburgh, Scotlandd. 5 April 1941 Hertford, England[br]English mechanical engineer, designer of the A4-class 4–6–2 locomotive holding the world speed record for steam traction.[br]Gresley was the son of the Rector of Netherseale, Derbyshire; he was educated at Marlborough and by the age of 13 was skilled at making sketches of locomotives. In 1893 he became a pupil of F.W. Webb at Crewe works, London \& North Western Railway, and in 1898 he moved to Horwich works, Lancashire \& Yorkshire Railway, to gain drawing-office experience under J.A.F.Aspinall, subsequently becoming Foreman of the locomotive running sheds at Blackpool. In 1900 he transferred to the carriage and wagon department, and in 1904 he had risen to become its Assistant Superintendent. In 1905 he moved to the Great Northern Railway, becoming Superintendent of its carriage and wagon department at Doncaster under H.A. Ivatt. In 1906 he designed and produced a bogie luggage van with steel underframe, teak body, elliptical roof, bowed ends and buckeye couplings: this became the prototype for East Coast main-line coaches built over the next thirty-five years. In 1911 Gresley succeeded Ivatt as Locomotive, Carriage \& Wagon Superintendent. His first locomotive was a mixed-traffic 2–6–0, his next a 2–8–0 for freight. From 1915 he worked on the design of a 4–6–2 locomotive for express passenger traffic: as with Ivatt's 4 4 2s, the trailing axle would allow the wide firebox needed for Yorkshire coal. He also devised a means by which two sets of valve gear could operate the valves on a three-cylinder locomotive and applied it for the first time on a 2–8–0 built in 1918. The system was complex, but a later simplified form was used on all subsequent Gresley three-cylinder locomotives, including his first 4–6–2 which appeared in 1922. In 1921, Gresley introduced the first British restaurant car with electric cooking facilities.With the grouping of 1923, the Great Northern Railway was absorbed into the London \& North Eastern Railway and Gresley was appointed Chief Mechanical Engineer. More 4–6– 2s were built, the first British class of such wheel arrangement. Modifications to their valve gear, along lines developed by G.J. Churchward, reduced their coal consumption sufficiently to enable them to run non-stop between London and Edinburgh. So that enginemen might change over en route, some of the locomotives were equipped with corridor tenders from 1928. The design was steadily improved in detail, and by comparison an experimental 4–6–4 with a watertube boiler that Gresley produced in 1929 showed no overall benefit. A successful high-powered 2–8–2 was built in 1934, following the introduction of third-class sleeping cars, to haul 500-ton passenger trains between Edinburgh and Aberdeen.In 1932 the need to meet increasing road competition had resulted in the end of a long-standing agreement between East Coast and West Coast railways, that train journeys between London and Edinburgh by either route should be scheduled to take 8 1/4 hours. Seeking to accelerate train services, Gresley studied high-speed, diesel-electric railcars in Germany and petrol-electric railcars in France. He considered them for the London \& North Eastern Railway, but a test run by a train hauled by one of his 4–6–2s in 1934, which reached 108 mph (174 km/h), suggested that a steam train could better the railcar proposals while its accommodation would be more comfortable. To celebrate the Silver Jubilee of King George V, a high-speed, streamlined train between London and Newcastle upon Tyne was proposed, the first such train in Britain. An improved 4–6–2, the A4 class, was designed with modifications to ensure free running and an ample reserve of power up hill. Its streamlined outline included a wedge-shaped front which reduced wind resistance and helped to lift the exhaust dear of the cab windows at speed. The first locomotive of the class, named Silver Link, ran at an average speed of 100 mph (161 km/h) for 43 miles (69 km), with a maximum speed of 112 1/2 mph (181 km/h), on a seven-coach test train on 27 September 1935: the locomotive went into service hauling the Silver Jubilee express single-handed (since others of the class had still to be completed) for the first three weeks, a round trip of 536 miles (863 km) daily, much of it at 90 mph (145 km/h), without any mechanical troubles at all. Coaches for the Silver Jubilee had teak-framed, steel-panelled bodies on all-steel, welded underframes; windows were double glazed; and there was a pressure ventilation/heating system. Comparable trains were introduced between London Kings Cross and Edinburgh in 1937 and to Leeds in 1938.Gresley did not hesitate to incorporate outstanding features from elsewhere into his locomotive designs and was well aware of the work of André Chapelon in France. Four A4s built in 1938 were equipped with Kylchap twin blast-pipes and double chimneys to improve performance still further. The first of these to be completed, no. 4468, Mallard, on 3 July 1938 ran a test train at over 120 mph (193 km/h) for 2 miles (3.2 km) and momentarily achieved 126 mph (203 km/h), the world speed record for steam traction. J.Duddington was the driver and T.Bray the fireman. The use of high-speed trains came to an end with the Second World War. The A4s were then demonstrated to be powerful as well as fast: one was noted hauling a 730-ton, 22-coach train at an average speed exceeding 75 mph (120 km/h) over 30 miles (48 km). The war also halted electrification of the Manchester-Sheffield line, on the 1,500 volt DC overhead system; however, anticipating eventual resumption, Gresley had a prototype main-line Bo-Bo electric locomotive built in 1941. Sadly, Gresley died from a heart attack while still in office.[br]Principal Honours and DistinctionsKnighted 1936. President, Institution of Locomotive Engineers 1927 and 1934. President, Institution of Mechanical Engineers 1936.Further ReadingF.A.S.Brown, 1961, Nigel Gresley, Locomotive Engineer, Ian Allan (full-length biography).John Bellwood and David Jenkinson, Gresley and Stanier. A Centenary Tribute (a good comparative account).See also: Bulleid, Oliver Vaughan SnellPJGRBiographical history of technology > Gresley, Sir Herbert Nigel
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6 Adamson, Daniel
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering, Metallurgy, Steam and internal combustion engines[br]b. 1818 Shildon, Co. Durham, Englandd. January 1890 Didsbury, Manchester, England[br]English mechanical engineer, pioneer in the use of steel for boilers, which enabled higher pressures to be introduced; pioneer in the use of triple-and quadruple-expansion mill engines.[br]Adamson was apprenticed between 1835 and 1841 to Timothy Hackworth, then Locomotive Superintendent on the Stockton \& Darlington Railway. After this he was appointed Draughtsman, then Superintendent Engineer, at that railway's locomotive works until in 1847 he became Manager of Shildon Works. In 1850 he resigned and moved to act as General Manager of Heaton Foundry, Stockport. In the following year he commenced business on his own at Newton Moor Iron Works near Manchester, where he built up his business as an iron-founder and boilermaker. By 1872 this works had become too small and he moved to a 4 acre (1.6 hectare) site at Hyde Junction, Dukinfield. There he employed 600 men making steel boilers, heavy machinery including mill engines fitted with the American Wheelock valve gear, hydraulic plant and general millwrighting. His success was based on his early recognition of the importance of using high-pressure steam and steel instead of wrought iron. In 1852 he patented his type of flanged seam for the firetubes of Lancashire boilers, which prevented these tubes cracking through expansion. In 1862 he patented the fabrication of boilers by drilling rivet holes instead of punching them and also by drilling the holes through two plates held together in their assembly positions. He had started to use steel for some boilers he made for railway locomotives in 1857, and in 1860, only four years after Bessemer's patent, he built six mill engine boilers from steel for Platt Bros, Oldham. He solved the problems of using this new material, and by his death had made c.2,800 steel boilers with pressures up to 250 psi (17.6 kg/cm2).He was a pioneer in the general introduction of steel and in 1863–4 was a partner in establishing the Yorkshire Iron and Steel Works at Penistone. This was the first works to depend entirely upon Bessemer steel for engineering purposes and was later sold at a large profit to Charles Cammell \& Co., Sheffield. When he started this works, he also patented improvements both to the Bessemer converters and to the engines which provided their blast. In 1870 he helped to turn Lincolnshire into an important ironmaking area by erecting the North Lincolnshire Ironworks. He was also a shareholder in ironworks in South Wales and Cumberland.He contributed to the development of the stationary steam engine, for as early as 1855 he built one to run with a pressure of 150 psi (10.5 kg/cm) that worked quite satisfactorily. He reheated the steam between the cylinders of compound engines and then in 1861–2 patented a triple-expansion engine, followed in 1873 by a quadruple-expansion one to further economize steam. In 1858 he developed improved machinery for testing tensile strength and compressive resistance of materials, and in the same year patents for hydraulic lifting jacks and riveting machines were obtained.He was a founding member of the Iron and Steel Institute and became its President in 1888 when it visited Manchester. The previous year he had been President of the Institution of Civil Engineers when he was presented with the Bessemer Gold Medal. He was a constant contributor at the meetings of these associations as well as those of the Institution of Mechanical Engineers. He did not live to see the opening of one of his final achievements, the Manchester Ship Canal. He was the one man who, by his indomitable energy and skill at public speaking, roused the enthusiasm of the people in Manchester for this project and he made it a really practical proposition in the face of strong opposition.[br]Principal Honours and DistinctionsPresident, Institution of Civil Engineers 1887.President, Iron and Steel Institute 1888. Institution of Civil Engineers Bessemer Gold Medal 1887.Further ReadingObituary, Engineer 69:56.Obituary, Engineering 49:66–8.Obituary, Proceedings of the Institution of Civil Engineers 100:374–8.H.W.Dickinson, 1938, A Short History of the Steam Engine, Cambridge University Press (provides an illustration of Adamson's flanged seam for boilers).R.L.Hills, 1989, Power from Steam. A History of the Stationary Steam Engine, Cambridge University Press (covers the development of the triple-expansion engine).RLH -
7 chef
chef [∫εf]1. masculine noun, feminine nouna. ( = patron) boss ; [de tribu] chief(tain)• faire le or jouer au petit chef to throw one's weight around► en chefb. [d'expédition, révolte, syndicat] leaderd. ( = cuisinier) chef2. invariable adjective• gardien/médecin chef chief warden/consultant3. compounds► chef de plateau (Cinema, TV) floor manager► chef de service departmental head ; ( = médecin) ≈ consultant* * *
I ʃɛfnom masculin1) ( meneur) leader3) ( dirigeant) gén head; Commerce ( d'un service) managercommandant en chef — Armée commander-in-chief
4) Culinairechef (cuisinier or de cuisine) — chef
5) (colloq) (as, champion) ace6) (dated) ( tête) headde mon/leur (propre) chef — on my/their own initiative
7) ( chapitre)au premier chef — primarily, first and foremost
•Phrasal Verbs:
II ʃɛfnom féminin boss (colloq)c'est elle la chef — she's the boss (colloq)
* * *ʃɛf1. nmf1) [groupe] leader, [tribu] chiefen chef; général en chef — general-in-chief
2) [service] headLe nouveau chef du service comptable est un Écossais. — The new head of the accounts department is Scottish.
3) (= supérieur hiérarchique) bossJe dois demander la permission à mon chef. — I have to get permission from my boss.
4) [cuisine] chef2. nm1)au premier chef (= avant tout) [concerner, viser] — primarily
2) (= de sa propre initiative)3) humoristique, lit (= tête)* * *A nm1 ( meneur) leader; le chef du parti the party leader; le chef de l'école cubiste the leader of the Cubist school; chef de l'opposition leader of the opposition; chef de bande gang leader; avoir des qualités de chef to have leadership qualities; avoir une âme or un tempérament de chef to be a born leader;2 ( supérieur) superior, boss○; Mil ( sergent) sergeant; votre chef en sera informé your superior will be informed; mon chef my boss○; salut, chef○! hi, boss○!;3 (patron, dirigeant) gén head; Comm ( d'un service) manager; chef de l'Église/de l'exécutif head of the Church/of the executive branch of government; l'exemple doit venir des chefs the example must come from the top; architecte en chef chief architect; commandant en chef Mil commander-in-chief; ⇒ petit;5 ○(as, champion) ace; se débrouiller comme un chef to manage splendidly;7 ( chapitre) heading; sous ce chef under this heading; au premier chef, leur négligence primarily ou first and foremost, their negligence; il importe, au premier chef, de rétablir l'ordre primarily, we must restore order.B ○nf boss○; à la maison, c'est elle la chef at home, she's the boss○.chef d'accusation Jur count of indictment; répondre à un chef d'accusation to answer a charge; chef d'atelier (shop) foreman; chef de bataillon major; chef de bureau chief clerk; chef de cabinet principal private secretary; chef de chantier works GB ou site foreman; chef de chœur choirmaster; chef de clan chieftain; chef de classe ≈ class prefect ou monitor GB, class president US; chef de clinique Méd ≈ senior registrar GB; chef de département head of department; chef d'entreprise head of a company; chef d'équipe Entr foreman; Sport team captain; chef d'escadron cavalry major; chef d'établissement head teacher; chef d'État head of state; chef d'état-major Chief of Staff; chef de fabrication production manager; chef de famille head of the family ou household; chef de file gén leader; Pol party leader; Fin ( de consortium) lead bank; Naut lead ship; chef de gare stationmaster; chef de gouvernement head of government; chef indien Indian chief; chef mécanicien engine driver GB, (locomotive) engineer US; chef de musique bandmaster; chef de nage stroke; chef d'orchestre conductor; chef de patrouille patrol leader; chef du personnel personnel manager; chef de plateau Cin, TV floor manager; chef de produit Comm product manager; chef de projet Entr project manager; chef de publicité ( d'agence) account executive; ( annonceur) advertising manager; ( dans les médias) advertising (sales) manager; chef de rang chef de rang; chef de rayon Comm department supervisor ou manager; chef de région area ou regional manager; chef de réseau ( espionnage) leader of a spy ring; ( Résistance) leader of a cell (in the Resistance movement); chef de service Admin section ou department head; Méd clinical director GB, chief physician US; chef de train guard GB, conductor US; chef de tribu headman; chef des ventes sales manager; chef de village village headman.[ʃɛf] nom masculinchef du personnel personnel ou staff manager2. MILITAIRE3. RAIL5. MUSIQUE6. SPORT7. [leader] leadera. (péjoratif) [dans une famille] domestic tyrantb. [au bureau, à l'usine] slave drivermédecin-chef ≃ senior consultant9. (humoristique) [tête] head10. DROITchef d'accusation charge ou count (of indictment)————————[ʃɛf] nom féminin[responsable]————————au premier chef locution adverbialede mon propre chef locution adverbiale,de son propre chef etc. locution adverbialeon my/his etc. own authority ou initiative————————en chef locution adjectivalechef d'orchestre nom masculin2. (figuré) [organisateur] organizer, orchestrator -
8 сопротивление локомотива как повозки
Russian-English dictionary of railway terminology > сопротивление локомотива как повозки
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9 проводимость постоянного тока
Русско-английский научный словарь > проводимость постоянного тока
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10 сопротивление постоянному току
Русско-английский научный словарь > сопротивление постоянному току
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11 проводимость постоянного тока
Русско-английский словарь по информационным технологиям > проводимость постоянного тока
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12 сопротивление постоянному току
Русско-английский словарь по информационным технологиям > сопротивление постоянному току
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