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21 pendulum impact (testing) machine
Строительство: маятниковый копёрУниверсальный англо-русский словарь > pendulum impact (testing) machine
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22 pendulum impact machine
1) Техника: маятниковый копёр2) Строительство: (testing) маятниковый копёрУниверсальный англо-русский словарь > pendulum impact machine
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23 pendulum impact testing machine
1) Техника: маятниковый копёр, маятниковый копёр для ударных испытаний2) Автоматика: маятниковый копер для испытания на удар3) Макаров: копер ШарпиУниверсальный англо-русский словарь > pendulum impact testing machine
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24 pendulum testing machine
Строительство: маятниковый копёрУниверсальный англо-русский словарь > pendulum testing machine
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25 pendulum impact testing machine
<qualit.mat> ■ Pendelschlagwerk nEnglish-german technical dictionary > pendulum impact testing machine
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26 pendulum impact testing machine
English-Russian dictionary of mechanical engineering and automation > pendulum impact testing machine
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27 pendulum grinding machine
szlifierka wahadłowaEnglish-Polish dictionary for engineers > pendulum grinding machine
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28 pendulum of an impact testing machine
taran młota wahadłowegołeb młota wahadłowegoEnglish-Polish dictionary for engineers > pendulum of an impact testing machine
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29 pendulum impact testing machine
Англо-русский словарь по сварочному производству > pendulum impact testing machine
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30 pendulum impact machine
Англо-русский строительный словарь > pendulum impact machine
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31 pendulum impact testing machine
Англо-русский строительный словарь > pendulum impact testing machine
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32 impact pendulum-type testing machine
Автоматика: маятниковый копер (для испытания на удар)Универсальный англо-русский словарь > impact pendulum-type testing machine
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33 impact pendulum-type testing machine
English-Russian dictionary of mechanical engineering and automation > impact pendulum-type testing machine
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34 маятниковый копер
Англо-русский словарь технических терминов > маятниковый копер
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35 маятниковый копер
Большой англо-русский и русско-английский словарь > маятниковый копер
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36 Herbert, Edward Geisler
[br]b. 23 March 1869 Dedham, near Colchester, Essex, Englandd. 9 February 1938 West Didsbury, Manchester, England[br]English engineer, inventor of the Rapidor saw and the Pendulum Hardness Tester, and pioneer of cutting tool research.[br]Edward Geisler Herbert was educated at Nottingham High School in 1876–87, and at University College, London, in 1887–90, graduating with a BSc in Physics in 1889 and remaining for a further year to take an engineering course. He began his career as a premium apprentice at the Nottingham works of Messrs James Hill \& Co, manufacturers of lace machinery. In 1892 he became a partner with Charles Richardson in the firm of Richardson \& Herbert, electrical engineers in Manchester, and when this partnership was dissolved in 1895 he carried on the business in his own name and began to produce machine tools. He remained as Managing Director of this firm, reconstituted in 1902 as a limited liability company styled Edward G.Herbert Ltd, until his retirement in 1928. He was joined by Charles Fletcher (1868–1930), who as joint Managing Director contributed greatly to the commercial success of the firm, which specialized in the manufacture of small machine tools and testing machinery.Around 1900 Herbert had discovered that hacksaw machines cut very much quicker when only a few teeth are in operation, and in 1902 he patented a machine which utilized this concept by automatically changing the angle of incidence of the blade as cutting proceeded. These saws were commercially successful, but by 1912, when his original patents were approaching expiry, Herbert and Fletcher began to develop improved methods of applying the rapid-saw concept. From this work the well-known Rapidor and Manchester saws emerged soon after the First World War. A file-testing machine invented by Herbert before the war made an autographic record of the life and performance of the file and brought him into close contact with the file and tool steel manufacturers of Sheffield. A tool-steel testing machine, working like a lathe, was introduced when high-speed steel had just come into general use, and Herbert became a prominent member of the Cutting Tools Research Committee of the Institution of Mechanical Engineers in 1919, carrying out many investigations for that body and compiling four of its Reports published between 1927 and 1933. He was the first to conceive the idea of the "tool-work" thermocouple which allowed cutting tool temperatures to be accurately measured. For this advance he was awarded the Thomas Hawksley Gold Medal of the Institution in 1926.His best-known invention was the Pendulum Hardness Tester, introduced in 1923. This used a spherical indentor, which was rolled over, rather than being pushed into, the surface being examined, by a small, heavy, inverted pendulum. The period of oscillation of this pendulum provided a sensitive measurement of the specimen's hardness. Following this work Herbert introduced his "Cloudburst" surface hardening process, in which hardened steel engineering components were bombarded by steel balls moving at random in all directions at very high velocities like gaseous molecules. This treatment superhardened the surface of the components, improved their resistance to abrasion, and revealed any surface defects. After bombardment the hardness of the superficially hardened layers increased slowly and spontaneously by a room-temperature ageing process. After his retirement in 1928 Herbert devoted himself to a detailed study of the influence of intense magnetic fields on the hardening of steels.Herbert was a member of several learned societies, including the Manchester Association of Engineers, the Institute of Metals, the American Society of Mechanical Engineers and the Institution of Mechanical Engineers. He retained a seat on the Board of his company from his retirement until the end of his life.[br]Principal Honours and DistinctionsManchester Association of Engineers Butterworth Gold Medal 1923. Institution of Mechanical Engineers Thomas Hawksley Gold Medal 1926.BibliographyE.G.Herbert obtained several British and American patents and was the author of many papers, which are listed in T.M.Herbert (ed.), 1939, "The inventions of Edward Geisler Herbert: an autobiographical note", Proceedings of the Institution of Mechanical Engineers 141: 59–67.ASD / RTSBiographical history of technology > Herbert, Edward Geisler
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37 Harrison, John
[br]b. 24 March 1693 Foulby, Yorkshire, Englandd. 24 March 1776 London, England[br]English horologist who constructed the first timekeeper of sufficient accuracy to determine longitude at sea and invented the gridiron pendulum for temperature compensation.[br]John Harrison was the son of a carpenter and was brought up to that trade. He was largely self-taught and learned mechanics from a copy of Nicholas Saunderson's lectures that had been lent to him. With the assistance of his younger brother, James, he built a series of unconventional clocks, mainly of wood. He was always concerned to reduce friction, without using oil, and this influenced the design of his "grasshopper" escapement. He also invented the "gridiron" compensation pendulum, which depended on the differential expansion of brass and steel. The excellent performance of his regulator clocks, which incorporated these devices, convinced him that they could also be used in a sea dock to compete for the longitude prize. In 1714 the Government had offered a prize of £20,000 for a method of determining longitude at sea to within half a degree after a voyage to the West Indies. In theory the longitude could be found by carrying an accurate timepiece that would indicate the time at a known longitude, but the requirements of the Act were very exacting. The timepiece would have to have a cumulative error of no more than two minutes after a voyage lasting six weeks.In 1730 Harrison went to London with his proposal for a sea clock, supported by examples of his grasshopper escapement and his gridiron pendulum. His proposal received sufficient encouragement and financial support, from George Graham and others, to enable him to return to Barrow and construct his first sea clock, which he completed five years later. This was a large and complicated machine that was made out of brass but retained the wooden wheelwork and the grasshopper escapement of the regulator clocks. The two balances were interlinked to counteract the rolling of the vessel and were controlled by helical springs operating in tension. It was the first timepiece with a balance to have temperature compensation. The effect of temperature change on the timekeeping of a balance is more pronounced than it is for a pendulum, as two effects are involved: the change in the size of the balance; and the change in the elasticity of the balance spring. Harrison compensated for both effects by using a gridiron arrangement to alter the tension in the springs. This timekeeper performed creditably when it was tested on a voyage to Lisbon, and the Board of Longitude agreed to finance improved models. Harrison's second timekeeper dispensed with the use of wood and had the added refinement of a remontoire, but even before it was tested he had embarked on a third machine. The balance of this machine was controlled by a spiral spring whose effective length was altered by a bimetallic strip to compensate for changes in temperature. In 1753 Harrison commissioned a London watchmaker, John Jefferys, to make a watch for his own personal use, with a similar form of temperature compensation and a modified verge escapement that was intended to compensate for the lack of isochronism of the balance spring. The time-keeping of this watch was surprisingly good and Harrison proceeded to build a larger and more sophisticated version, with a remontoire. This timekeeper was completed in 1759 and its performance was so remarkable that Harrison decided to enter it for the longitude prize in place of his third machine. It was tested on two voyages to the West Indies and on both occasions it met the requirements of the Act, but the Board of Longitude withheld half the prize money until they had proof that the timekeeper could be duplicated. Copies were made by Harrison and by Larcum Kendall, but the Board still continued to prevaricate and Harrison received the full amount of the prize in 1773 only after George III had intervened on his behalf.Although Harrison had shown that it was possible to construct a timepiece of sufficient accuracy to determine longitude at sea, his solution was too complex and costly to be produced in quantity. It had, for example, taken Larcum Kendall two years to produce his copy of Harrison's fourth timekeeper, but Harrison had overcome the psychological barrier and opened the door for others to produce chronometers in quantity at an affordable price. This was achieved before the end of the century by Arnold and Earnshaw, but they used an entirely different design that owed more to Le Roy than it did to Harrison and which only retained Harrison's maintaining power.[br]Principal Honours and DistinctionsRoyal Society Copley Medal 1749.Bibliography1767, The Principles of Mr Harrison's Time-keeper, with Plates of the Same, London. 1767, Remarks on a Pamphlet Lately Published by the Rev. Mr Maskelyne Under theAuthority of the Board of Longitude, London.1775, A Description Concerning Such Mechanisms as Will Afford a Nice or True Mensuration of Time, London.Further ReadingR.T.Gould, 1923, The Marine Chronometer: Its History and Development, London; reprinted 1960, Holland Press.—1978, John Harrison and His Timekeepers, 4th edn, London: National Maritime Museum.H.Quill, 1966, John Harrison, the Man who Found Longitude, London. A.G.Randall, 1989, "The technology of John Harrison's portable timekeepers", Antiquarian Horology 18:145–60, 261–77.J.Betts, 1993, John Harrison London (a good short account of Harrison's work). S.Smiles, 1905, Men of Invention and Industry; London: John Murray, Chapter III. Dictionary of National Biography, Vol. IX, pp. 35–6.DV -
38 Charpy, Augustin Georges Albert
SUBJECT AREA: Metallurgy[br]b. 1 September 1865 Ouillins, Rhône, Franced. 25 November 1945 Paris, France[br]French metallurgist, originator of the Charpy pendulum impact method of testing metals.[br]After graduating in chemistry from the Ecole Polytechnique in 1887, Charpy continued to work there on the physical chemistry of solutions for his doctorate. He joined the Laboratoire d'Artillerie de la Marine in 1892 and began to study the structure and mechanical properties of various steels in relation to their previous heat treatment. His first memoir, on the mechanical properties of steels quenched from various temperatures, was published in 1892 on the advice of Henri Le Chatelier. He joined the Compagnie de Chatillon Commentry Fourchamboult et Decazeville at their steelworks in Imphy in 1898, shortly after the discovery of Invar by G.E. Guillaume. Most of the alloys required for this investigation had been prepared at Imphy, and their laboratories were therefore well equipped with sensitive and refined dilatometric facilities. Charpy and his colleague L.Grenet utilized this technique in many of their earlier investigations, which were largely concerned with the transformation points of steel. He began to study the magnetic characteristics of silicon steels in 1902, shortly after their use as transformer laminations had first been proposed by Hadfield and his colleagues in 1900. Charpy was the first to show that the magnetic hysteresis of these alloys decreased rapidly as their grain size increased.The first details of Charpy's pendulum impact testing machine were published in 1901, about two years before Izod read his paper to the British Association. As with Izod's machine, the energy of fracture was measured by the retardation of the pendulum. Charpy's test pieces, however, unlike those of Izod, were in the form of centrally notched beams, freely supported at each end against rigid anvils. This arrangement, it was believed, transmitted less energy to the frame of the machine and allowed the energy of fracture to be more accurately measured. In practice, however, the blow of the pendulum in the Charpy test caused visible distortion in the specimen as a whole. Both tests were still widely used in the 1990s.In 1920 Charpy left Imphy to become Director-General of the Compagnie des Aciéries de la Marine et Homecourt. After his election to the Académie des Sciences in 1918, he came to be associated with Floris Osmond and Henri Le Chatelier as one of the founders of the "French School of Physical Metallurgy". Around the turn of the century he had contributed much to the development of the metallurgical microscope and had helped to introduce the Chatelier thermocouple into the laboratory and to industry. He also popularized the use of platinum-wound resistance furnaces for laboratory purposes. After 1920 his industrial responsibilities increased greatly, although he continued to devote much of his time to teaching at the Ecole Supérieure des Mines in Paris, and at the Ecole Polytechnique. His first book, Leçons de Chimie (1892, Paris), was written at the beginning of his career, in association with H.Gautier. His last, Notions élémentaires de sidérurgie (1946, Paris), with P.Pingault as co-author, was published posthumously.[br]BibliographyCharpy published important metallurgical papers in Comptes rendus… Académie des Sciences, Paris.Further ReadingR.Barthélémy, 1947, "Notice sur la vie et l'oeuvre de Georges Charpy", Notices et discours, Académie des Sciences, Paris (June).M.Caullery, 1945, "Annonce du décès de M.G. Charpy" Comptes rendus Académie des Sciences, Paris 221:677.P.G.Bastien, 1963, "Microscopic metallurgy in France prior to 1920", Sorby Centennial Symposium on the History of Metallurgy, AIME Metallurgical Society Conference Vol.27, pp. 171–88.ASDBiographical history of technology > Charpy, Augustin Georges Albert
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39 robot
робот, промышленный робот; автоматический манипулятор- adaptive robotrobot tending the machine — пристаночный робот; обслуживающий робот
- all-electric robot
- all-electric-drive robot
- all-hydraulic robot
- anthropomorphic robot
- arc-welding robot
- articulated arm robot
- articulated robot
- assembling robot
- attendant robot
- bang-bang robot
- bolt-on robot
- built-on robot
- carrying robot
- cartesian coordinate-type robot
- cartesian robot
- checking robot
- chuck robot
- column robot
- communication robot
- computer-controlled robot
- construction robot
- continuous path robot
- cooperating robots
- coordinate measuring robot
- coordinated multiple robot
- crane robot
- cutter changing robot
- cutter handling robot
- cutter kitting robot
- cylindrical coordinate-type robot
- dc powered robot
- deburring robot
- dedicated robot
- depalletizing robot
- dexterous robot
- direct teaching robot
- docking robot
- double-armed robot
- electric robot
- electric servo actuated robot
- electric servo robot
- electrically-operated robot
- electric-drive robot
- extended-reach robot
- extended-travel robot
- factory intelligence-controlled robot
- five-axis robot
- fixed robot
- fixed sequence robot
- fixed-stop robot
- flexible arm robot
- flexible robot
- floor mounted robot
- flowline robot
- FMM robot
- force-controlled robot
- forging robot
- free-standing robot
- future stage robot
- gantry robot
- gantry-mounted robot
- gate-type robot
- general-purpose robot
- generation 1 robot
- generation 1,5 robot
- generation 2 robot
- generation 3 robot
- grinding robot
- hand-arm robot
- handling robot
- high-technology robot
- household robot
- humanoid robot
- hydraulic robot
- hydraulically-actuated robot
- industrial robot
- industry robot
- inspection robot
- integrated laser robot
- intelligent robot
- jointed arm robot
- jointed spherical robot
- limited degree-of-freedom robot
- linear axis robot
- linear-type robot
- loader/unloader robot
- locomotive robot
- machine-loading robot
- machine-mounted robot
- magazine robot
- manipulating industrial robot
- master robot
- material-handling robot
- materials-processing robot
- measurement robot
- measuring robot
- medium technology robot
- mobile robot
- multiarm robot
- multiaxis robot
- multifunction robot
- multilimbed robot
- multilink robot
- multiple robots
- multiple-arm robot
- multisensor robot
- multisensor-based robot
- multitask robot
- NC robot
- nonexplosion-proof robot
- nonlinear robot
- nonredundant robot
- nonservo robot
- off-the-shelf robot
- on-board robot
- on-machine robot
- open loop robot
- overhead gantry robot
- overhead robot
- painter robot
- painting robot
- paint-spraying robot
- pallet loader robot
- pallet robot
- pallet-changing robot
- part turnover robot
- parts-handling robot
- part-turning robot
- pedestal robot
- pedestal-style robot
- pendulum robot
- pick-and-place robot
- piling robot
- pipe welding inspection robot
- pivoted arm robot
- pneumatically powered robot
- point-to-point robot
- polar coordinate robot
- polar robot
- polishing robot
- position control robot
- power efficient robot
- precision measurement robot
- process control robot
- process robot
- production robot
- program-controlled robot
- programmed on-line robot
- record-playback robot
- rectangular coordinate-type robot
- rectilinear-Cartesian robot
- remote maintenance robot
- remote-control robot
- remote-controlled robot
- repair robot
- revolute jointed robot
- revolute robot
- revolute-joint-type robot
- RGV-mounted robot
- RW robot
- screw-driving robot
- selecting robot
- sensor feedback robot
- sensor-guided robot
- sensory-controlled robot
- sensory-interactive robot
- sequence robot
- service robot
- servo actuated robot
- servo robot
- shape-sensing robot
- shuttle robot
- simple-to-comlex robots
- single robot
- single-arm robot
- six-jointed robot
- slave robot
- sliding-mode robot
- spherical coordinate-type robot
- spherical robot
- spot-welding robot
- spray glazing robot
- spraying robot
- stacker crane robot
- standard robot
- supervisory-controlled robot
- swarf removal robot
- tailor-made robot
- teaching playback robot
- teaching playback-type robot
- telephon testing robot
- term robot
- three-arm robot
- three-axis robot
- tool kitting robot
- tool robot
- tool transport robot
- tool-building robot
- tool-changing robot
- tool-drum loader robot
- tool-handling robot
- tool-loading robot
- tracked mobile robot
- tracked robot
- track-mounted robot
- transfer robot
- transportation robot
- two-axis robot
- unmanned robot
- versatile robot
- vision-guided robot
- visually-guided robot
- walking robot
- welding robot
- work transfer robot
- workpiece-handling robotEnglish-Russian dictionary of mechanical engineering and automation > robot
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40 balance
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