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1 simple pitch diameter
Автоматика: средний диаметр цилиндрической резьбы -
2 simple pitch diameter
English-Russian dictionary of mechanical engineering and automation > simple pitch diameter
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3 Pitch diameter, simple pitch diameter
31. Средний диаметр цилиндрической резьбы
Средний диаметр резьбы
D. Flankendurchmesser des Gewindes
E. Pitch diameter, simple pitch diameter
F. Diamètre sur flancs, diamètre mesuré sur flancs
d2, D2
Диаметр воображаемого, соосного с резьбой прямого кругового цилиндра, каждая образующая которого пересекает профиль резьбы таким образом, что ее отрезки, образованные при пересечении с канавкой, равны половине номинального шага резьбы (черт. 15)
Черт. 15
Источник: ГОСТ 11708-82: Основные нормы взаимозаменяемости. Резьба. Термины и определения оригинал документа
Англо-русский словарь нормативно-технической терминологии > Pitch diameter, simple pitch diameter
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4 diameter
diameter admitted in gap — 1) наибольший диаметр изделия, устанавливаемого в выемку станины ( токарного станка) 2) наибольший диаметр изделия, устанавливаемого на стол ( долбёжного станка)
- angle diameterdiameter over pins — диаметр (ЗК), измеряемый по роликам, вложенным во впадины зубьев
- arbitrary diameter
- average cutter diameter
- bar diameter
- base circle diameter
- base diameter
- basic effective diameter
- bearing diameter
- blade point diameter
- bore diameter divided into length
- bore diameter
- boring diameter
- bottom diameter
- centering diameter on the spindle nose
- chucking diameter
- close tolerance diameter
- collar diameter
- contact diameter
- copying diameter
- core diameter
- cutter diameter
- cutting diameter
- diameter of spindle bore
- drilled diameter
- effective cutter diameter
- effective cutting diameter
- effective diameter
- external register diameter
- finish-ground diameter
- free ring diameter
- functional diameter
- functional pitch diameter
- gage diameter
- gaging diameter
- gear outer diameter
- gripping diameter
- honing diameter
- incident laser beam diameter
- inner diameter
- inside diameter
- inside point diameter
- internal diameter
- journal diameter
- machinable bar diameter
- machined diameter
- major diameter
- maximum diameter of flow path
- maximum diameter of workpiece over ways
- maximum turning diameter
- mean bore diameter
- mean diameter of the cutter
- mean outside diameter
- mean spring diameter
- minimum diameter of flow path
- minor diameter
- mounting diameter
- nominal bore diameter
- nominal diameter
- nominal outside diameter
- nominal pitch diameter
- operating pitch diameter
- outer diameter
- outside diameter
- oversized cutter diameter
- pilot diameter
- pin bearing diameter
- pin diameter
- pitch diameter
- point diameter
- pointed tooth outside diameter
- punching diameter
- raceway contact diameter
- range diameters
- reference circle diameter
- reference diameter
- register diameter
- root diameter of wormwheel
- root diameter
- seal diameter
- set point diameter
- simple pitch diameter
- single bore diameter
- single outside diameter
- single plane mean bore diameter
- single plane mean outside diameter
- swing diameter over the bed
- swing diameter
- thread diameter
- thrust collar diameter
- tip cylinder diameter
- tip diameter
- turned diameter
- turning diameter over cross slide
- turning diameter
- undersized cutter diameter
- virtual pitch diameter of thread
- wheel-mounting diameter
- worm wheel maximum diameterEnglish-Russian dictionary of mechanical engineering and automation > diameter
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5 Maxim, Sir Hiram Stevens
[br]b. 5 February 1840 Brockway's Mills, Maine, USAd. 24 November 1916 Streatham, London, England[br]American (naturalized British) inventor; designer of the first fully automatic machine gun and of an experimental steam-powered aircraft.[br]Maxim was born the son of a pioneer farmer who later became a wood turner. Young Maxim was first apprenticed to a carriage maker and then embarked on a succession of jobs before joining his uncle in his engineering firm in Massachusetts in 1864. As a young man he gained a reputation as a boxer, but it was his uncle who first identified and encouraged Hiram's latent talent for invention.It was not, however, until 1878, when Maxim joined the first electric-light company to be established in the USA, as its Chief Engineer, that he began to make a name for himself. He developed an improved light filament and his electric pressure regulator not only won a prize at the first International Electrical Exhibition, held in Paris in 1881, but also resulted in his being made a Chevalier de la Légion d'honneur. While in Europe he was advised that weapons development was a more lucrative field than electricity; consequently, he moved to England and established a small laboratory at Hatton Garden, London. He began by investigating improvements to the Gatling gun in order to produce a weapon with a faster rate of fire and which was more accurate. In 1883, by adapting a Winchester carbine, he successfully produced a semi-automatic weapon, which used the recoil to cock the gun automatically after firing. The following year he took this concept a stage further and produced a fully automatic belt-fed weapon. The recoil drove barrel and breechblock to the vent. The barrel then halted, while the breechblock, now unlocked from the former, continued rearwards, extracting the spent case and recocking the firing mechanism. The return spring, which it had been compressing, then drove the breechblock forward again, chambering the next round, which had been fed from the belt, as it did so. Keeping the trigger pressed enabled the gun to continue firing until the belt was expended. The Maxim gun, as it became known, was adopted by almost every army within the decade, and was to remain in service for nearly fifty years. Maxim himself joined forces with the large British armaments firm of Vickers, and the Vickers machine gun, which served the British Army during two world wars, was merely a refined version of the Maxim gun.Maxim's interests continued to occupy several fields of technology, including flight. In 1891 he took out a patent for a steam-powered aeroplane fitted with a pendulous gyroscopic stabilizer which would maintain the pitch of the aeroplane at any desired inclination (basically, a simple autopilot). Maxim decided to test the relationship between power, thrust and lift before moving on to stability and control. He designed a lightweight steam-engine which developed 180 hp (135 kW) and drove a propeller measuring 17 ft 10 in. (5.44 m) in diameter. He fitted two of these engines into his huge flying machine testrig, which needed a wing span of 104 ft (31.7 m) to generate enough lift to overcome a total weight of 4 tons. The machine was not designed for free flight, but ran on one set of rails with a second set to prevent it rising more than about 2 ft (61 cm). At Baldwyn's Park in Kent on 31 July 1894 the huge machine, carrying Maxim and his crew, reached a speed of 42 mph (67.6 km/h) and lifted off its rails. Unfortunately, one of the restraining axles broke and the machine was extensively damaged. Although it was subsequently repaired and further trials carried out, these experiments were very expensive. Maxim eventually abandoned the flying machine and did not develop his idea for a stabilizer, turning instead to other projects. At the age of almost 70 he returned to the problems of flight and designed a biplane with a petrol engine: it was built in 1910 but never left the ground.In all, Maxim registered 122 US and 149 British patents on objects ranging from mousetraps to automatic spindles. Included among them was a 1901 patent for a foot-operated suction cleaner. In 1900 he became a British subject and he was knighted the following year. He remained a larger-than-life figure, both physically and in character, until the end of his life.[br]Principal Honours and DistinctionsChevalier de la Légion d'Honneur 1881. Knighted 1901.Bibliography1908, Natural and Artificial Flight, London. 1915, My Life, London: Methuen (autobiography).Further ReadingObituary, 1916, Engineer (1 December).Obituary, 1916, Engineering (1 December).P.F.Mottelay, 1920, The Life and Work of Sir Hiram Maxim, London and New York: John Lane.Dictionary of National Biography, 1912–1921, 1927, Oxford: Oxford University Press.See also: Pilcher, Percy SinclairCM / JDSBiographical history of technology > Maxim, Sir Hiram Stevens
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