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1 mechanics
[mɪ'kænɪks]nome plurale1) (subject) + verbo sing. meccanica f.2) (workings) + verbo pl. meccanismo m.sing. (anche fig.)the mechanics of — il meccanismo di [engine, pump]; i meccanismi di [law, management]
* * *1) (the science of the action of forces on objects: He is studying mechanics.) meccanica2) (the art of building machines: He applied his knowledge of mechanics to designing a new wheelchair.) meccanica* * *mechanics /mɪˈkænɪks/n. pl. (col verbo al sing.)1 (fis.) meccanica* * *[mɪ'kænɪks]nome plurale1) (subject) + verbo sing. meccanica f.2) (workings) + verbo pl. meccanismo m.sing. (anche fig.)the mechanics of — il meccanismo di [engine, pump]; i meccanismi di [law, management]
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2 mechanic
nounMechaniker, der* * *[mi'kænik] 1. noun(a skilled worker who repairs or maintains machinery.) der Mechaniker- academic.ru/45864/mechanical">mechanical- mechanically
- mechanics 2. noun plural(the ways in which something works or is applied: the mechanics of the legal system.) die Technik- mechanism- mechanize
- mechanise
- mechanization
- mechanisation* * *me·chan·ic[mɪˈkænɪk]* * *[mI'knɪk]nMechaniker( in) m(f)* * *mechanic [mıˈkænık]B sb) Handwerker(in)a) Mechanik f (Teilgebiet der Physik, das sich mit der Bewegung von Körpern unter dem Einfluss von Kräften befasst)mechanics of fluids Flüssigkeits-, Hydro-, Strömungsmechanik3. pl (als sg konstruiert) TECH Konstruktion f von Maschinen etc4. pl (als sg konstruiert) TECH und fig Mechanismus m:5. pl (als sg konstruiert) fig Technik f:6. obs pej Rüpel mmech. abk1. mechanic2. mechanical4. mechanism* * *nounMechaniker, der* * *n.Maschinenschlosser m.Mechaniker m. -
3 Holtzapffel, Charles
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering[br]b. 1806 London, Englandd. 11 April 1847 London, England[br]English mechanical engineer and author of Turning and Mechanical Manipulation.[br]Charles Holtzapffel was the son of John Holtzapffel, a native of Germany who settled in London c.1787 and set up as a manufacturer of lathes and tools for amateur mechanics. Charles Holtzapffel received a good English education and training in his father's workshop, and subsequently became a partner and ultimately succeeded to the business. He was engaged in the construction of machinery for printing banknotes, of lathes for cutting rosettes and for ornamental and plain turning. Holtzapffel is chiefly remembered for his monumental work entitled Turning and Mechanical Manipulation, intended as a work of general reference and practical instruction on the lathe. Publication began in 1843 and only the first two volumes were published in his lifetime. A third volume was edited by his widow from his notes and published shortly after his death. The fourth and fifth volumes were completed by his son, John Jacob Holtzapffel, more than thirty years later. Holtzapffel was an Associate of the Institution of Civil Engineers and served on its Council: he was also a member of the Society of Arts and Chairman of its Committee on Mechanics.RTS -
4 Clement (Clemmet), Joseph
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering[br]bapt. 13 June 1779 Great Asby, Westmoreland, Englandd. 28 February 1844 London, England[br]English machine tool builder and inventor.[br]Although known as Clement in his professional life, his baptism at Asby and his death were registered under the name of Joseph Clemmet. He worked as a slater until the age of 23, but his interest in mechanics led him to spend much of his spare time in the local blacksmith's shop. By studying books on mechanics borrowed from his cousin, a watchmaker, he taught himself and with the aid of the village blacksmith made his own lathe. By 1805 he was able to give up the slating trade and find employment as a mechanic in a small factory at Kirkby Stephen. From there he moved to Carlisle for two years, and then to Glasgow where, while working as a turner, he took lessons in drawing; he had a natural talent and soon became an expert draughtsman. From about 1809 he was employed by Leys, Mason \& Co. of Aberdeen designing and making power looms. For this work he built a screw-cutting lathe and continued his self-education. At the end of 1813, having saved about £100, he made his way to London, where he soon found employment as a mechanic and draughtsman. Within a few months he was engaged by Joseph Bramah, and after a trial period a formal agreement dated 1 April 1814 was made by which Clement was to be Chief Draughtsman and Superintendent of Bramah's Pimlico works for five years. However, Bramah died in December 1814 and after his sons took over the business it was agreed that Clement should leave before the expiry of the five-year period. He soon found employment as Chief Draughtsman with Henry Maudslay \& Co. By 1817 Clement had saved about £500, which enabled him to establish his own business at Prospect Place, Newington Butts, as a mechanical draughtsman and manufacturer of high-class machinery. For this purpose he built lathes for his own use and invented various improvements in their detailed design. In 1827 he designed and built a facing lathe which incorporated an ingenious system of infinitely variable belt gearing. He had also built his own planing machine by 1820 and another, much larger one in 1825. In 1828 Clement began making fluted taps and dies and standardized the screw threads, thus anticipating on a small scale the national standards later established by Sir Joseph Whitworth. Because of his reputation for first-class workmanship, Clement was in the 1820s engaged by Charles Babbage to carry out the construction of his first Difference Engine.[br]Principal Honours and DistinctionsSociety of Arts Gold Medal 1818 (for straightline mechanism), 1827 (for facing lathe); Silver Medal 1828 (for lathe-driving device).BibliographyExamples of Clement's draughtsmanship can be found in the Transactions of the Society of Arts 33 (1817), 36 (1818), 43 (1925), 46 (1828) and 48 (1829).Further ReadingS.Smiles, 1863, Industrial Biography, London, reprinted 1967, Newton Abbot (virtually the only source of biographical information on Clement).L.T.C.Rolt, 1965, Tools for the Job, London (repub. 1986); W.Steeds, 1969, A History of Machine Tools 1700–1910, Oxford (both contain descriptions of his machine tools).RTSBiographical history of technology > Clement (Clemmet), Joseph
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5 Davidson, Robert
[br]b. 18 April 1804 Aberdeen, Scotlandd. 16 November 1894 Aberdeen, Scotland[br]Scottish chemist, pioneer of electric power and builder of the first electric railway locomotives.[br]Davidson, son of an Aberdeen merchant, attended Marischal College, Aberdeen, between 1819 and 1822: his studies included mathematics, mechanics and chemistry. He subsequently joined his father's grocery business, which from time to time received enquiries for yeast: to meet these, Davidson began to manufacture yeast for sale and from that start built up a successful chemical manufacturing business with the emphasis on yeast and dyes. About 1837 he started to experiment first with electric batteries and then with motors. He invented a form of electromagnetic engine in which soft iron bars arranged on the periphery of a wooden cylinder, parallel to its axis, around which the cylinder could rotate, were attracted by fixed electromagnets. These were energized in turn by current controlled by a simple commutaring device. Electric current was produced by his batteries. His activities were brought to the attention of Michael Faraday and to the scientific world in general by a letter from Professor Forbes of King's College, Aberdeen. Davidson declined to patent his inventions, believing that all should be able freely to draw advantage from them, and in order to afford an opportunity for all interested parties to inspect them an exhibition was held at 36 Union Street, Aberdeen, in October 1840 to demonstrate his "apparatus actuated by electro-magnetic power". It included: a model locomotive carriage, large enough to carry two people, that ran on a railway; a turning lathe with tools for visitors to use; and a small printing machine. In the spring of 1842 he put on a similar exhibition in Edinburgh, this time including a sawmill. Davidson sought support from railway companies for further experiments and the construction of an electromagnetic locomotive; the Edinburgh exhibition successfully attracted the attention of the proprietors of the Edinburgh 585\& Glasgow Railway (E \& GR), whose line had been opened in February 1842. Davidson built a full-size locomotive incorporating his principle, apparently at the expense of the railway company. The locomotive weighed 7 tons: each of its two axles carried a cylinder upon which were fastened three iron bars, and four electromagnets were arranged in pairs on each side of the cylinders. The motors he used were reluctance motors, the power source being zinc-iron batteries. It was named Galvani and was demonstrated on the E \& GR that autumn, when it achieved a speed of 4 mph (6.4 km/h) while hauling a load of 6 tons over a distance of 1 1/2 miles (2.4 km); it was the first electric locomotive. Nevertheless, further support from the railway company was not forthcoming, although to some railway workers the locomotive seems to have appeared promising enough: they destroyed it in Luddite reaction. Davidson staged a further exhibition in London in 1843 without result and then, the cost of battery chemicals being high, ceased further experiments of this type. He survived long enough to see the electric railway become truly practicable in the 1880s.[br]Bibliography1840, letter, Mechanics Magazine, 33:53–5 (comparing his machine with that of William Hannis Taylor (2 November 1839, British patent no. 8,255)).Further Reading1891, Electrical World, 17:454.J.H.R.Body, 1935, "A note on electro-magnetic engines", Transactions of the Newcomen Society 14:104 (describes Davidson's locomotive).F.J.G.Haut, 1956, "The early history of the electric locomotive", Transactions of the Newcomen Society 27 (describes Davidson's locomotive).A.F.Anderson, 1974, "Unusual electric machines", Electronics \& Power 14 (November) (biographical information).—1975, "Robert Davidson. Father of the electric locomotive", Proceedings of the Meeting on the History of Electrical Engineering Institution of Electrical Engineers, 8/1–8/17 (the most comprehensive account of Davidson's work).A.C.Davidson, 1976, "Ingenious Aberdonian", Scots Magazine (January) (details of his life).PJGR / GW -
6 Roberts, Richard
[br]b. 22 April 1789 Carreghova, Llanymynech, Montgomeryshire, Walesd. 11 March 1864 London, England[br]Welsh mechanical engineer and inventor.[br]Richard Roberts was the son of a shoemaker and tollkeeper and received only an elementary education at the village school. At the age of 10 his interest in mechanics was stimulated when he was allowed by the Curate, the Revd Griffith Howell, to use his lathe and other tools. As a young man Roberts acquired a considerable local reputation for his mechanical skills, but these were exercised only in his spare time. For many years he worked in the local limestone quarries, until at the age of 20 he obtained employment as a pattern-maker in Staffordshire. In the next few years he worked as a mechanic in Liverpool, Manchester and Salford before moving in 1814 to London, where he obtained employment with Henry Maudslay. In 1816 he set up on his own account in Manchester. He soon established a reputation there for gear-cutting and other general engineering work, especially for the textile industry, and by 1821 he was employing about twelve men. He built machine tools mainly for his own use, including, in 1817, one of the first planing machines.One of his first inventions was a gas meter, but his first patent was obtained in 1822 for improvements in looms. His most important contribution to textile technology was his invention of the self-acting spinning mule, patented in 1825. The normal fourteen-year term of this patent was extended in 1839 by a further seven years. Between 1826 and 1828 Roberts paid several visits to Alsace, France, arranging cottonspinning machinery for a new factory at Mulhouse. By 1826 he had become a partner in the firm of Sharp Brothers, the company then becoming Sharp, Roberts \& Co. The firm continued to build textile machinery, and in the 1830s it built locomotive engines for the newly created railways and made one experimental steam-carriage for use on roads. The partnership was dissolved in 1843, the Sharps establishing a new works to continue locomotive building while Roberts retained the existing factory, known as the Globe Works, where he soon after took as partners R.G.Dobinson and Benjamin Fothergill (1802–79). This partnership was dissolved c. 1851, and Roberts continued in business on his own for a few years before moving to London as a consulting engineer.During the 1840s and 1850s Roberts produced many new inventions in a variety of fields, including machine tools, clocks and watches, textile machinery, pumps and ships. One of these was a machine controlled by a punched-card system similar to the Jacquard loom for punching rivet holes in plates. This was used in the construction of the Conway and Menai Straits tubular bridges. Roberts was granted twenty-six patents, many of which, before the Patent Law Amendment Act of 1852, covered more than one invention; there were still other inventions he did not patent. He made his contribution to the discussion which led up to the 1852 Act by publishing, in 1830 and 1833, pamphlets suggesting reform of the Patent Law.In the early 1820s Roberts helped to establish the Manchester Mechanics' Institute, and in 1823 he was elected a member of the Literary and Philosophical Society of Manchester. He frequently contributed to their proceedings and in 1861 he was made an Honorary Member. He was elected a Member of the Institution of Civil Engineers in 1838. From 1838 to 1843 he served as a councillor of the then-new Municipal Borough of Manchester. In his final years, without the assistance of business partners, Roberts suffered financial difficulties, and at the time of his death a fund for his aid was being raised.[br]Principal Honours and DistinctionsMember, Institution of Civil Engineers 1838.Further ReadingThere is no full-length biography of Richard Roberts but the best account is H.W.Dickinson, 1945–7, "Richard Roberts, his life and inventions", Transactions of the Newcomen Society 25:123–37.W.H.Chaloner, 1968–9, "New light on Richard Roberts, textile engineer (1789–1864)", Transactions of the Newcomen Society 41:27–44.RTS -
7 Root, Elisha King
[br]b. 10 May 1808 Ludlow, Massachusetts, USAd. 31 August 1865 Hartford, Connecticut, USA[br]American mechanical engineer and inventor.[br]After an elementary education, Elisha K.Root was apprenticed as a machinist and worked in that occupation at Ware and Chicopee Falls, Massachusetts. In 1832 he went to Collinsville, Connecticut, to join the Collins Company, manufacturers of axes. He started as a lathe hand but soon became Foreman and, in 1845, Superintendent. While with the company, he devised and patented special-purpose machinery for forming axes which transformed the establishment from a primitive workshop to a modern factory.In 1849 Root was offered positions by four different manufacturers and accepted the post of Superintendent of the armoury then being planned at Hartford, Connecticut, by Samuel Colt for the manufacture of his revolver pistol, which he had invented in 1835. Initial acceptance of the revolver was slow, but by the mid1840s Colt had received sufficient orders to justify the establishment of a new factory and Root was engaged to design and install the machinery. The principle of interchangeable manufacture was adopted, and Root devised special machines for boring, rifling, making cartridges, etc., and a system of jigs, fixtures, tools and gauges. One of these special machines was a drop hammer that he invented and patented in 1853 and which established the art of die-forging on a modern basis. He was also associated with F.A. Pratt in the design of the "Lincoln" milling machine in 1855.When Colt died in 1862, Root became President of the company and continued in that capacity until his own death. It was said that he was one of the ablest and most highly paid mechanics from New England and that he was largely responsible for the success of both the Collins and the Colt companies.[br]Further ReadingJ.W.Roe, 1916, English and American Tool Builders, New Haven; reprinted 1926, New York, and 1987, Bradley, Ill. (describes Root's work at the Colt Armory).Paul Uselding, 1974, "Elisha K.Root, Forging, and the “American System”", "Elisha K.Root, forging, and the “American System”", Technology and Culture 15:543–68 (provides further biographical details, his work with the Collins Company and a list of his patents).RTS -
8 cutting
стружка; опилки; лоскутки; обрезки; обрезь; обрезок (пиломатериал); нарезание; насечка; резание; резка (напр. газовая); разрезка; разрезание; срезание; перерезание; строжка; обработка резанием; фрезерование; гранение; выемка (бульдозером); разъединение; разрыв; отсоединение; отключение; выключение; отсечка (тока); запирание (цепи); отсечение; вырезание; отбрасывание стр. выемка грунта; лес. подрубка; врубка; рубка; тесание; распиливание; с.х. косьба; кошение; покос; отросток; отводок; черенок- cutting accuracy - cutting amperage - cutting and bending - cutting-and-mixing machine - cutting-and-molding machine - cutting and shearing plant - cutting angle - cutting apparatus - cutting area - cutting area work - cutting assemblage - cutting axis - cutting-back - cutting band - cutting-bit head - cutting burrs - cutting by blowtorch - cutting by waterjet - cutting cam - cutting capability - cutting ceramics - cutting chain - cutting chute - cutting conditions - cutting coolant - cutting-cooling medium - cutting cycle - cutting depth - cutting device - cutting diamond - cutting die - cutting divider - cutting down - cutting-down - cutting drag - cutting drum - cutting-edge - cutting edge - cutting edge angle - cutting edge configuration - cutting edge form - cutting edge inclination - cutting edge length - cutting edge normal plane - cutting edge of a knife - cutting edge of machining technology - cutting edge package - cutting-edge seal - cutting edge sharpness - cutting edge technology - cutting-edge technology - cutting edge tip - cutting effect - cutting efficiency - cutting effort - cutting electrode - cutting emulsion - cutting end - cutting end shape - cutting energy - cutting engagement - cutting equipment - cutting face - cutting feed rate - cutting feed speed - cutting flame - cutting fluid - cutting-fluid recycling - cutting flute - cutting force - cutting force component - cutting force deflection - cutting force dynamometer - cutting force-induced error - cutting force per unit area of cut - cutting force per unit width of cut - cutting forceps - cutting frame - cutting from the solid - cutting gage - cutting gas - cutting geometry - cutting giant - cutting grade - cutting head - cutting head assembly - cutting-head-height-and-collision sensor - cutting heat - cutting height - cutting-in - cutting in a smooth pattern - cutting in a spiral pattern - cutting-in speed - cutting-in speed of over drive - cutting-in time - cutting inaccuracies - cutting insert - cutting installation - cutting instrument - cutting interval - cutting iron - cutting jet - cutting jib - cutting job - cutting knife - cutting laser tool - cutting length - cutting life - cutting line - cutting liquid - cutting load - cutting load signal - cutting-loading machine - cutting lubricant - cutting machine - cutting machine scratch - cutting machine tool technology - cutting machine with coordinate drive - cutting material - cutting mechanics - cutting mechanism - cutting medium - cutting member - cutting metal - cutting mode - cutting motion - cutting movement - cutting nippers - cutting noise - cutting nozzle - cutting of fuel oils - cutting-off-abrasive wheel - cutting-off - cutting-off bit tool - cutting-off EDM - cutting-off grinding - cutting-off lathe - cutting-off machine - cutting-off saw - cutting-off tool - cutting oil - cutting-oil deflector - cutting oil freshener - cutting oil separator - cutting operation - cutting orientation - cutting out - cutting-out - cutting-out of rivets - cutting out of square - cutting-out press - cutting oxygen - cutting oxygen tube - cutting parameters - cutting part - cutting pass - cutting path - cutting path supporting points - cutting pattern - cutting performance - cutting period - cutting perpendicular force - cutting pick - cutting plan - cutting plane - cutting plane line - cutting plate - cutting platform - cutting pliers - cutting point - cutting-point angle - cutting position - cutting power - cutting-practice rules - cutting press - cutting profile - cutting program - cutting prong - cutting propagation - cutting pulse - cutting punch - cutting quality - cutting radius - digging radius - cutting rate - cutting region - cutting relief angle - cutting resistance - cutting resistance per tooth - cutting rib - cutting right to size - cutting rim - cutting ring - cutting ring coupling - cutting roll - cutting room - cutting rotor - cutting rule - cutting run - cutting scallops - cutting sequence - cutting-shearing drilling bit - cutting shoe - cutting simulation - cutting size - cutting size of core diamond bit - cutting speed - cutting speed chart plate - cutting speed control mechanism - cutting speed for milling - cutting speed indicator - cutting spindle - cutting stretch - cutting stroke - cutting stroke drive - cutting surface - cutting table - cutting tap - cutting technology - cutting technology routine - cutting teeth - cutting temperature - cutting test - cutting the loop - cutting-through of a tunnel - cutting thrust - cutting thrust force - cutting time - cutting-time monitor - cutting tip - cutting to a shoulder - cutting to length - cutting to size - cutting tool - cutting tool assembly - cutting tool body - cutting tool cartridge - cutting tool collet - cutting tool contact indicator - cutting tool control macro - cutting tool data - utting tool edge - cutting tool engineering - cutting tool force - cutting tool holder - cutting tool industry - cutting tool insert - cutting tool lubricant - cutting tool materials - cutting tool measurement system - cutting tool outlet - cutting tool technology - cutting tool with inserted blades - cutting tooth - cutting torch - cutting torque - cutting-type core drilling bit - cutting-type drilling bit - cutting unit - cutting up - cutting-up line - cutting value - cutting waste - cutting wear - cutting wedge - cutting wheel - cutting wheel carrier - cutting width - cutting-winning machine - cutting with preheating - cutting work - cutting zone - abrasive cutting - abrasive cutting-off - abrasive waterjet cutting - accretion cutting - across cutting - adaptive control cutting - air-arc cutting - air plasma cutting - angle cutting - approach cutting - arc cutting - arc-oxygene cutting - back-off cutting - bottom cutting - burrless cutting - cable cutting - cam cutting - carbide cutting - carbon-arc cutting - cleaning cutting - climb cutting - composite cutting - consecutive tool cutting - creep cutting - cross-cutting - cryogenic cutting - curved cutting - 2D profile cutting - 3D profile cutting - deep cutting - deskill cutting - diagonal cutting - diamond cutting - double cutting - double-roll cutting - double-roll tooth cutting - drill cuttings - dry cutting - ED cutting-off - ED wire cutting - edge cutting - electric arc-gas jet cutting - electrochemical hole cutting - electrochemical wire cutting - electroerosion cutting - end cutting - fabric cutting - finishing cutting - flame cutting - flux injetion cutting - form cutting - form tooth cutting - friction cutting - fusion cutting - gas cutting - gas metal cutting - gas-shielded arc cutting - gas-shielded tungsten-arc cutting - gas tungsten cutting - gear cutting - grass cutting - groove cutting - guided hand cutting - hand cutting - heavy cutting - high-pressure water-assisted cutting - hoisting and drilling load cuttings - hydraulic cutting - hydrogene cutting - in-line cutting - inserted carbide cutting - internal cutting - internally fed wet cutting - interrupted cutting - irregular depth cutting - keyway cutting - lance cutting - laser cutting - lateral cutting - length cutting - light cutting - little-and-often cutting - low-rpm cutting - machine cutting - manual air-plasma jet cutting - measure cutting - metal cutting - metal-arc cutting - metal powder cutting - miter cutting - multipass cutting - multiple milling cutting - multiple thread cutting - multitool cutting - oblique cutting - orthogonal cutting - oxy-arc cutting - oxygene-arc cutting - oxy-fuel cutting - oxy-fuel gas cutting - oxyacetylene cutting - oxyacetylene flame cutting - oxygen arc cutting - oxygen assisted laser cutting - oxygene lance cutting - oxyhydrogen cutting - oxy-propane cutting - part cutting - percussion cutting - peritheral cutting - pipe cuttings - plasma arc cutting - plasma flame cutting - plasma-jet cutting - playback laser cutting - plunge cutting - press cutting - polygon cutting - polygonal cutting - profile cutting - punch cutting - railway cutting - right-angle cutting - rotary cutting - rough cutting - round cutting - sample cutting - screw cutting - scroll cutting - see-saw cutting - setable minimum cutting - shape cutting - shear cuttings - shear-speed cutting - shielded metal arc cutting - side cutting - sideways cutting - single-pass cutting - single-point cutting - single-point thread cutting - skip cutting - slice cutting - solid cutting - spark cutting - spiral cuttings - spiral-bevel-gear cutting - spur-gear cutting - stack cutting - steel cuttings - straight line cutting - taper cutting - thermal cutting - thread cutting - tooth cutting - torch cutting - transverse cutting - tungsten-arc cutting - two-way cutting - ultrasonic cutting - up cutting - waterjet cutting - waterjet-assisted mechanical cutting - wet cutting - wire cutting
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