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1 range of machines
1) Экономика: ассортимент машин2) Автоматика: гамма станков, серия станков -
2 range of machines
гамма станков; серия станковEnglish-Russian dictionary of mechanical engineering and automation > range of machines
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3 range of machines
English-russian dctionary of contemporary Economics > range of machines
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4 range
1) ряд; линия; серия; гамма (напр. станков)2) диапазон; область; предел, пределы3) расстояние; длина; радиус действия4) амплитуда; размах5) сортамент; номенклатура ( изделий)6) решётка•- adjustment range
- angular range
- audio frequency range
- ball center range
- beam range
- boring range
- capacity range
- capture range
- clamping range
- constant power range
- constant torque range
- continuous range
- control range
- correcting range
- dilution range
- drive range
- duty range
- dynamic range
- effective range
- endurance range
- extreme range
- fatigue range
- feed range per stroke
- feed-rate range
- fixed range
- frequency range
- gear range
- gripping range
- high/low range
- horizontal feed range
- horizontal work range
- HSM-range
- infinite range
- infinitely variable speed range
- instrument range
- interference-free range
- lifting range
- linear dynamic range
- load-carrying ranges
- machining range
- measurement range
- measuring range
- micron range
- milling speeds available range
- milling speeds range
- modular build range
- nanometer range
- nominal range of use
- nominal range
- operating range
- operative range
- part range
- pipe range
- pressure range
- product range
- range of adjustment
- range of applicability
- range of application
- range of disturbance
- range of feeding movements
- range of machines
- range of measurement
- range of motion
- range of number representation
- range of plasticity
- range of proportionality
- range of purity
- range of ratios
- range of regulation
- range of scatter
- range of sensitivity
- range of set values
- range of sizes
- range of speeds
- range of stress
- range of the milling machine
- range of use
- range of vacuum
- reciprocatory range
- reference range
- relative control range
- scale range
- setting range
- short range
- sliding gear ranges
- spatial range
- specific range of tasks
- specified measuring range
- spindle-speed range
- stability range
- steel-machining range
- table-setting range
- temperature compensation range
- temperature range
- tilting range
- tolerance range
- tool offset range
- transformation range
- travel range
- traverse range
- tuning range
- turning range
- usable range
- variable range
- vertical feed range
- vertical work range
- wide-duty range
- work range
- working range
- working temperature range
- workpiece range
- X-Y-Z rangeEnglish-Russian dictionary of mechanical engineering and automation > range
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5 range
1. n1) серия, ряд2) сфера, зона; область, круг3) пределы; диапазон; размах4) колебание, движение (курсов, цен)5) номенклатура; ассортимент; коллекция6) рейндж (порты определенного района)
- Antwerp-Hamburg range
- asset depreciation range
- average range
- broad range of investors
- capacity range
- commercial range of goods
- complete range
- comprehensive range
- control range
- currency index fluctuation range
- economic batch range
- economic lot range
- employment range
- exchange rate fluctuation range
- full range
- historical trading range
- interest rate range
- inventory range
- manufacturing range
- market range
- Northern range
- opening range
- price range
- process range
- product range
- production range
- rate range
- salary range
- sampling range
- spring range
- target ranges
- trading range
- wide range
- range of action
- range of activity
- range of application
- range of articles in stock
- range of commodities
- range of discretion
- range of duties
- range of error
- range of exhibits
- range of export goods
- range of goods
- range of machines
- range of manufacture
- range of measures
- range of patterns
- range of prices
- range of production
- range of products
- range of samples
- range of services
- range of sizes
- range of use
- range of variation
- range of work
- out of the range
- over a wide range
- appeal to a broad range of investors
- have a wide range of goods2. vизменяться, колебаться в определенных пределах -
6 seven-strong range of drilling machines
Англо-русский словарь по машиностроению > seven-strong range of drilling machines
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7 Zonca, Vittorio
[br]b. c. 1568 Italyd. 1603 Italy[br]Italian architect who wrote a book on machines.[br]All that is known of Zonca is included on the frontispiece of the book that is his only claim to fame. He is there described as architect to the "Magnificent Community of Padua". He compiled a book on machines entitled Novo teatro de machine ed edificii (New Display of Machines and Edifices), illustrated with numerous fine engravings. It was printed in Padua in 1607, four years after his death, by Francesco Bertelli, who said of the book that it "came into my hands", as though he knew nothing of the author.During the sixteenth and early seventeenth centuries, a number of illustrated books on technical subjects appeared, compiled by knowledgeable and educated authors. These books greatly helped the spread of information about the technical arts throughout Europe. There were several books on mechanical devices, notably those by Ramelli, Besson and Zonca. In some ways, Zonca's is the most interesting, for it seems closest to the mechanical practice of the time. Several of the machines he describes are referred to as being in use in Padua or Venice and he suggests ways of improving them. The range of machines is wider than in other similar works and includes pumps, cranes, powder mills, printing and bookbinding presses and textile machines. Perhaps the most interesting of these is the water-driven silk-threading machine, since some of its components resemble those in use in the twentieth century. Spinning mills were widely used in the silk industry in sixteenth-century Italy, and Zonca offers a full description of one. He also shows the first example of an oblique treadwheel, driven by oxen for the grinding of grain. Even so, despite all the practical detail, the book ends, like others of its kind, with fantasy, in a description of a perpetual-motion machine.[br]Further ReadingA.G.Keller, 1964, A Theatre of Machines, London: Chapman \& Hall (provides brief details and illustrations from the books by Ramelli, Besson and Zonca).LRD -
8 McKay, Hugh Victor
SUBJECT AREA: Agricultural and food technology[br]b. c. 1866 Drummartin, Victoria, Australiad. 21 May 1926 Australia[br]Australian inventor and manufacturer of harvesting and other agricultural equipment.[br]A farmer's son, at the age of 17 McKay developed modifications to the existing stripper harvester and created a machine that would not only strip the seed from standing corn, but was able to produce a threshed, winnowed and clean sample in one operation. The prototype was produced in 1884 and worked well on the two acres of wheat that had been set aside on the family farm. By arrangement with a Melbourne plough maker, five machines were made and sold for the 1885 season. In 1886 the McKay Harvester Company was formed, with offices at Ballarat, from which the machines, built by various companies, were sold. The business expanded quickly, selling sixty machines in 1888, and eventually rising to the production of nearly 2,000 harvesters in 1905. The name "Sunshine" was given to the harvester, and the "Sun" prefix was to appear on all other implements produced by the company as it diversified its production interests. In 1902 severe drought reduced machinery sales and left 2,000 harvesters unsold. McKay was forced to look to export markets to dispose of his surplus machines. By 1914 a total of 10,000 machines were being exported annually. During the First World War McKay was appointed to the Business Board of the Defence Department. Increases in the scale of production resulted in the company moving to Melbourne, where it was close to the port of entry of raw materials and was able to export the finished article more readily. In 1909 McKay produced one of the first gas-engined harvesters, but its cost prevented it from being more than an experimental prototype. By this time McKay was the largest agricultural machinery manufacturer in the Southern hemisphere, producing a wide range of implements, including binders. In 1916 McKay hired Headlie Taylor, who had developed a machine capable of harvesting fallen crops. The jointly developed machine was a major success, coming as it did in what would otherwise have been a disastrous Australian harvest. Further developments included the "Sun Auto-header" in 1923, the first of the harvesting machines to adopt the "T" configuration to be seen on modern harvesters. The Australian market was expanding fast and a keen rivalry developed between McKay and Massey Harris. Confronted by the tariff regulations with which the Australian Government had protected its indigenous machinery industry since 1906, Massey Harris sold all its Australian assets to the H.V. McKay company in 1930. Twenty-three years later Massey Ferguson acquired the old Sunshine works and was still operating from there in the 1990s.Despite a long-running history of wage disputes with his workforce, McKay established a retiring fund as well as a self-help fund for distressed cases. Before his death he created a charitable trust and requested that some funds should be made available for the "aerial experiments" which were to lead to the establishment of the Flying Doctor Service.[br]Principal Honours and DistinctionsCBE.Further ReadingGraeme Quick and Wesley Buchele, 1978, The Grain Harvesters, American Society of Agricultural Engineers (devotes a chapter to the unique development of harvesting machinery which took place in Australia).AP -
9 Winding
The operation of transferring yarn from one form of package to another, such as winding from hanks to bobbins, from bobbins to cones, from cops to bobbins, etc. The process that follows spinning determines whether winding is necessary or not. Cops and ring tubes or bobbins can be used in that form as weft in the shuttle, but they are not suitable for making into warps, nor as supply to knitting or braiding machines. Yarn in the other forms of spun packages requires to be pirned for use as weft. Although yarn winding is not a fundamental process like spinning and weaving, it occupies a very important place in the economics of yarn processing, and probably embraces a wider range of different machines than any other phase of textile processing. Even a bare catalogue of the different kinds of winding machines would far too lengthy for inclusion here. Broadly, winding machines are adapted for: - 1. Winding yarn for use as weft in loom shuttles, including winding on to wood pirns and paper tubes; solid cops for use in shuttles without tongues; quills for use in ribbon and smallware looms; layer locking at the nose of the pirn to prevent sloughing of rayon weft; bunch building at the base of pirns for use in automatic looms; weft rewound from spinner's cops into larger packages to give maximum length at one filling of the shuttle. The yarn supply can be from hanks, cops, spinner's bobbins, cones, cheeses, warps, etc. 2. Winding yarns for making warps from spinner's cops or bobbins, hanks that have been sized, bleached or dyed, cones, cheeses, and other forms of supply. 3. Winding yarns into suitable form for sizing, bleaching, dyeing, or for receiving other wet treatments, including hanks, warps, cheeses, cops, etc. 4. Winding yarns for knitting, i.e., on to splicer bobbins, cones, pineapple cones, bottle bobbins, etc., and on to bobbins for use in braiding machines. 5. Special process winding such as the precision winding of several threads side by side in tape form for covering wire, etc. 6. Winding yarns into packages for retail selling such as winding mending wools on cards; sewing thread on wood spools or small flangeless cheeses; crochet embroidery and other threads into balls; packing string info balls and cheeses; harvesting twine into large balls and cones, etc. -
10 Case, Jerome Increase
SUBJECT AREA: Agricultural and food technology[br]b. 1819 Williamstown, Oswego County, New York, USAd. 1891 USA[br]American manufacturer and founder of the Case company of agricultural engineers.[br]J.I.Case was the son of a former and began his working life operating the family's Groundhog threshing machine. He moved into contract threshing, and used the money he earned to pay his way through a business academy. He became the agent for the Groundhog thresher in his area and at the age of 23 decided to move west, taking six machines with him. He sold five of these to obtain working capital, and in 1842 moved from Williamstown, New York, to Rochester, Wisconsin, where he established his manufacturing company. He produced the first combined thresher-winnower in the US in 1843. Two years later he moved to Racine, on the shores of Lake Michigan in the same state. Within four years the Case company became Racine's biggest company and largest employer, a position it was to retain into the twentieth century. As early as 1860 Case was shipping threshing machines around the Horn to California.Apart from having practical expertise Case was also a skilled demonstrator, and it was this combination which resulted in the sure growth of his company. In 1869 he produced his first portable steam engine and in 1876 his first traction engine. By the mid 1870s he was selling a significant proportion of the machines in use in America. By 1878 Case threshing machines had penetrated the European market, and in 1885 sales to South America began. Case also became the world's largest manufacturer of steam engines.J.I.Case himself, whilst still actively involved with the company, also became involved in politics. He was Mayor of Racine for three terms and State Senator for two. He was also President of the Manufacturers' National Bank of Racine and Founder of the First National Bank of Burlington. He founded the Wisconsin Academy of Science, Arts and Letters and was President of the Racine County Agricultural Society. He had time for sport and was owner of the world's all-time champion trotter-pacer.Continued expansion of the company after J.I. Case's death led eventually to its acquisition by Tenneco in 1967, and in 1985 the company took over International Harvester. As Case I.H. it continues to produce a full range of agricultural, earth-moving and heavy-transport equipment.[br]Further ReadingDespite the size and importance of the company he created, very little has been written about Case. On particular anniversaries the company has produced celebratory publications, and surprisingly these still seem to be the main source of information about him.R.B.Gray, 1975, The Agricultural Tractor 1855–1950, American Society of Agricultural Engineers (traces the history of power on the farm, in which Case and his machines played such an important role).AP -
11 Goucher, John
SUBJECT AREA: Agricultural and food technology[br]b. c.1831 Woodsetts, Yorkshire, Englandd. unknown[br]English engineer and inventor of the rubbing bars used on threshing machines and combine harvesters.[br]John Goucher was the son of a Yorkshire farmer who began his employed life as a carpenter. In 1851, at the age of 20, he was living on the farm of his father and employing four labourers. He developed and patented a means of wrapping wire around the individual bars of a threshing machine drum in such a way that grooves were formed in them. These grooves allowed the threshed grain to pass through without being crushed or otherwise damaged.[br]BibliographyOther patents credited to him range from devices for the propelling of ships in 1854, beaters for threshing machines in 1848, 1856, and again in 1861, stacking corn and other crops in the same year, improvements to steam boilers in 1863, for preserving life in water in 1867, threshing machines in 1873 and 1874, steam engines in 1884, and threshing machines in 1885.AP -
12 Morland, Sir Samuel
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering[br]b. 1625 Sulhampton, near Reading, Berkshire, Englandd. 26 December 1695 Hammersmith, near London, England[br]English mathematician and inventor.[br]Morland was one of several sons of the Revd Thomas Morland and was probably initially educated by his father. He went to Winchester School from 1639 to 1644 and then to Magdalene College, Cambridge, where he graduated BA in 1648 and MA in 1652. He was appointed a tutor there in 1650. In 1653 he went to Sweden in the ambassadorial staff of Bulstrode Whitelocke and remained there until 1654. In that year he was appointed Clerk to Mr Secretary Thurloe, and in 1655 he was accredited by Oliver Cromwell to the Duke of Savoy to appeal for the Waldenses. In 1657 he married Susanne de Milleville of Boissy, France, with whom he had three children. In 1660 he went over to the Royalists, meeting King Charles at Breda, Holland. On 20 May, the King knighted him, creating him baron, for revealing a conspiracy against the king's life. He was also granted a pension of£500 per year. In 1661, at the age of 36, he decided to devote himself to mathematics and invention. He devised a mechanical calculator, probably based on the pattern of Blaise Pascal, for adding and subtracting: this was followed in 1666 by one for multiplying and other functions. A Perpetual Calendar or Almanack followed; he toyed with the idea of a "gunpowder engine" for raising water; he developed a range of speaking trum-pets, said to have a range of 1/2 to 1 mile (0.8–1.6 km) or more; also iron stoves for use on board ships, and improvements to barometers.By 1675 he had started selling a range of pumps for private houses, for mines or deep wells, for ships, for emptying ponds or draining low ground as well as to quench fire or wet the sails of ships. The pumps cost from £5 to £63, and the great novelty was that he used, instead of packing around the cylinder sealing against the bore of the cylinder, a neck-gland or seal around the outside diameter of the piston or piston-rod. This revolutionary step avoided the necessity of accurately boring the cylinder, replacing it with the need to machine accurately the outside diameter of the piston or rod, a much easier operation. Twenty-seven variations of size and materials were included in his schedule of'Pumps or Water Engines of Isaac Thompson of Great Russel Street', the maker of Morland's design. In 1681 the King made him "Magister mechanicorum", or Master of Machines. In that year he sailed for France to advise Louis XIV on the waterworks being built at Marly to supply the Palace of Versailles. About this time he had shown King Charles plans for a pumping engine "worked by fire alone". He petitioned for a patent for this, but did not pursue the matter.In 1692 he went blind. In all, he married five times. While working for Cromwell he became an expert in ciphers, in opening sealed letters and in their rapid copying.[br]Principal Honours and DistinctionsKnighted 1660.Bibliography1685, Elevation des eaux.Further ReadingH.W.Dickinson, 1970, Sir Samuel Morland: Diplomat and Inventor, Cambridge: Newcomen Society/Heffers.IMcN -
13 ARM
1) Общая лексика: возрастная макулопати, Airport Resource Manager, система управления ресурсами аэропорта2) Компьютерная техника: Advanced RISC Machine3) Авиация: Aircraft Recovery Manual4) Медицина: age-related maculopathy (возрастная макулопатия), adverse reaction to medicines5) Военный термин: ADP Resources Manager, Ammunition Requirement and Movement, Antiradiation Missile, Army ready materiel, Atmospheric Radiation Measurement, advanced rifle marksmanship, air reconnaissance mission, aircraft radio mechanic, antiradar missile, automated radar monitor6) Техника: amateur radio monitor, area radiation monitor, automated radar management, automated route management, (Application Reference Model) прикладная эталонная модель7) Метеорология: Atmospheric Radiation Monitoring8) Страхование: Associate in Risk Management9) Телекоммуникации: Asynchronous Response Mode (HDLC)10) Сокращение: Accelerated Reply Mail, Allergy Relief Medicine, Anti-Radar /-Radiation Missile, Anti-Radiation Missile, Armenian, Artillery Re-arm Module, Atmosphere Radiation Monitor, Availability, Reliability, Maintainability, artificial rupture of membranes, aviation radioman, усовершенствованная машина с сокращённым набором команд (Advanced RISC Machine (processor)), аннотированное справочное руководство (Annotated Reference Manual)11) Физиология: All Range Movement, Anxiety reaction, mild12) Электроника: Audio Rate Modulation13) Вычислительная техника: Annotated (c++) Reference Manual, Asynchronous Response Mode, address resolution message, Advanced RISC Machines (Hersteller, Acorn, Apple, VLSI, RISC)14) Нефть: anhysteretic remanent magnetization15) Генетика: Aging Response Modulators16) Космонавтика: Anhysteretic Remnant Magnetization17) Банковское дело: ипотека с переменной ставкой (adjustable rate mortgage)18) Воздухоплавание: Anti Radar Missile19) Фирменный знак: Advanced Risc Machines, American Russian Matchmaking20) Деловая лексика: Aggressive Risk Management, Attract, Retain, And Motivate, Active Risk Management21) Производство: Asset Risk Management (управление рисками основных фондов)22) Инвестиции: adjustable rate mortgage23) Сетевые технологии: Atm Router Module, advanced recovery mode, асинхронный режим ответа, режим асинхронного ответа, усовершенствованный режим восстановления информации24) Программирование: аббревиатура: стандартное обозначение книжки М.Эллис и Б.Страуструпа "Справочное руководство по языку программирования C++ с комментариями" (изд-во Мир, М.: 1992 (Margaret A. Ellis, Bjarne Stroustrup "The C++ Annotated Reference Manual"))25) Ядерная физика: Accumulator Read-in Module26) Робототехника: Autonomous Robotic Manipulation27) Телефония: Agent Reporting and Management29) Яхтенный спорт: Армения (Обозначения на парусах)30) Должность: Accredited Residential Manager31) Аэропорты: Armidale, New South Wales, Australia32) Программное обеспечение: Application Response Measurement -
14 arm
1) Общая лексика: возрастная макулопати, Airport Resource Manager, система управления ресурсами аэропорта2) Компьютерная техника: Advanced RISC Machine3) Авиация: Aircraft Recovery Manual4) Медицина: age-related maculopathy (возрастная макулопатия), adverse reaction to medicines5) Военный термин: ADP Resources Manager, Ammunition Requirement and Movement, Antiradiation Missile, Army ready materiel, Atmospheric Radiation Measurement, advanced rifle marksmanship, air reconnaissance mission, aircraft radio mechanic, antiradar missile, automated radar monitor6) Техника: amateur radio monitor, area radiation monitor, automated radar management, automated route management, (Application Reference Model) прикладная эталонная модель7) Метеорология: Atmospheric Radiation Monitoring8) Страхование: Associate in Risk Management9) Телекоммуникации: Asynchronous Response Mode (HDLC)10) Сокращение: Accelerated Reply Mail, Allergy Relief Medicine, Anti-Radar /-Radiation Missile, Anti-Radiation Missile, Armenian, Artillery Re-arm Module, Atmosphere Radiation Monitor, Availability, Reliability, Maintainability, artificial rupture of membranes, aviation radioman, усовершенствованная машина с сокращённым набором команд (Advanced RISC Machine (processor)), аннотированное справочное руководство (Annotated Reference Manual)11) Физиология: All Range Movement, Anxiety reaction, mild12) Электроника: Audio Rate Modulation13) Вычислительная техника: Annotated (c++) Reference Manual, Asynchronous Response Mode, address resolution message, Advanced RISC Machines (Hersteller, Acorn, Apple, VLSI, RISC)14) Нефть: anhysteretic remanent magnetization15) Генетика: Aging Response Modulators16) Космонавтика: Anhysteretic Remnant Magnetization17) Банковское дело: ипотека с переменной ставкой (adjustable rate mortgage)18) Воздухоплавание: Anti Radar Missile19) Фирменный знак: Advanced Risc Machines, American Russian Matchmaking20) Деловая лексика: Aggressive Risk Management, Attract, Retain, And Motivate, Active Risk Management21) Производство: Asset Risk Management (управление рисками основных фондов)22) Инвестиции: adjustable rate mortgage23) Сетевые технологии: Atm Router Module, advanced recovery mode, асинхронный режим ответа, режим асинхронного ответа, усовершенствованный режим восстановления информации24) Программирование: аббревиатура: стандартное обозначение книжки М.Эллис и Б.Страуструпа "Справочное руководство по языку программирования C++ с комментариями" (изд-во Мир, М.: 1992 (Margaret A. Ellis, Bjarne Stroustrup "The C++ Annotated Reference Manual"))25) Ядерная физика: Accumulator Read-in Module26) Робототехника: Autonomous Robotic Manipulation27) Телефония: Agent Reporting and Management29) Яхтенный спорт: Армения (Обозначения на парусах)30) Должность: Accredited Residential Manager31) Аэропорты: Armidale, New South Wales, Australia32) Программное обеспечение: Application Response Measurement -
15 stand
stand [stænd]stand ⇒ 1 (a) étal ⇒ 1 (a) support ⇒ 1 (b) plate-forme ⇒ 1 (c) tribune ⇒ 1 (c), 1 (d) barre ⇒ 1 (f) position ⇒ 1 (g) mettre ⇒ 2 (a) poser ⇒ 2 (a) supporter ⇒ 2 (b)-(d) se lever ⇒ 3 (a) être debout ⇒ 3 (b), 3 (c) être ⇒ 3 (b), 3 (e), 3 (f) se tenir ⇒ 3 (b) reposer ⇒ 3 (d), 3 (g) se trouver ⇒ 3 (e) rester ⇒ 3 (g) rester valable ⇒ 3 (h) se classer ⇒ 3 (j)(pt & pp stood [stʊd])1 noun(a) (stall, booth → at exhibition, trade fair) stand m; (→ in market) étal m, éventaire m; (kiosk) kiosque m;∎ a shooting stand un stand de tir;∎ newspaper stand kiosque m (à journaux)(b) (frame, support → gen) support m; (→ for lamp, sink) pied m; (→ on bicycle, motorbike) béquille f; (→ for pipes, guns) râtelier m; Commerce (→ for magazines, sunglasses) présentoir m; (lectern) lutrin m;∎ bicycle stand (in street) râtelier m à bicyclettes;∎ plant stand sellette f;∎ plate stand support m à assiette, présentoir m;∎ Commerce revolving stand tourniquet m, présentoir m rotatif(d) (in sports ground) tribune f;∎ the stands roared un rugissement s'éleva des tribunes ou des gradins∎ (taxi) stand station f de taxis(f) (in courtroom) barre f;∎ the first witness took the stand le premier témoin est venu à la barre(g) (position, stance) position f;∎ to take a stand on sth prendre position sur qch;∎ what's your stand on the issue? quelle est votre position sur la question?;∎ he refuses to take a stand il refuse de prendre position∎ to make a stand résister;∎ they made a stand at the foot of the hill ils ont résisté au pied de la colline;∎ to make a stand against an abuse s'opposer résolument à un abus;∎ History Custer's last stand la dernière bataille de Custer∎ a fine stand of corn un beau champ de blé;∎ a stand of bamboo un massif de bambous(a) (set, place) mettre, poser;∎ he stood the boy on a chair il a mis le garçon debout sur une chaise;∎ she stood her umbrella in the corner elle a mis son parapluie dans le coin;∎ to stand sth on (its) end mettre qch debout;∎ help me stand the bedstead against the wall aide-moi à dresser le sommier ou mettre le sommier debout contre le mur(b) (endure, withstand) supporter;∎ his heart couldn't stand the shock son cœur n'a pas résisté au ou n'a pas supporté le choc;∎ it will stand high temperatures without cracking cela peut résister à ou supporter des températures élevées sans se fissurer;∎ how much weight can the bridge stand? quel poids le pont peut-il supporter?;∎ the motor wasn't built to stand intensive use le moteur n'a pas été conçu pour supporter un usage intensif;∎ wool carpeting can stand a lot of hard wear les moquettes en laine sont très résistantes;∎ she's not strong enough to stand another operation elle n'est pas assez forte pour supporter une nouvelle opération;∎ he certainly doesn't stand comparison with Bogart il n'est absolument pas possible de le comparer avec Bogart;∎ their figures don't stand close inspection leurs chiffres ne résistent pas à un examen sérieux∎ I can't stand it any longer! je n'en peux plus!;∎ how can you stand working with him? comment est-ce que vous faites pour ou comment arrivez-vous à travailler avec lui?;∎ I've had as much as I can stand of your griping! j'en ai assez de tes jérémiades!;∎ if there's one thing I can't stand, it's hypocrisy s'il y a quelque chose que je ne supporte pas, c'est bien l'hypocrisie;∎ I can't stand (the sight of) him! je ne peux pas le supporter!, je ne peux pas le voir en peinture!;∎ she can't stand Wagner/smokers elle ne peut pas supporter Wagner/les fumeurs;∎ he can't stand flying il déteste prendre l'avion∎ oil company profits could certainly stand a cut une diminution de leurs bénéfices ne ferait aucun mal aux compagnies pétrolières;∎ he could stand a bath! un bain ne lui ferait pas de mal!;∎ American could I stand a drink! je prendrais bien un petit verre!(e) (perform duty of) remplir la fonction de;∎ to stand witness for sb (at marriage) être le témoin de qn∎ to stand sb a meal payer un repas à qn;∎ to stand a chance (of doing sth) avoir de bonnes chances (de faire qch);∎ you don't stand a chance! vous n'avez pas la moindre chance!;∎ the plans stand little chance of being approved les projets ont peu de chances d'être approuvés(a) (rise to one's feet) se lever, se mettre debout;∎ he refused to stand for the national anthem il a refusé de se lever pendant l'hymne national(b) (be on one's feet) être debout, se tenir debout; (in a specified location, posture) être, se tenir;∎ I've been standing all day je suis resté debout toute la journée;∎ I had to stand all the way j'ai dû voyager debout pendant tout le trajet;∎ she was so tired she could hardly stand elle était si fatiguée qu'elle avait du mal à tenir debout ou sur ses jambes;∎ wear flat shoes if you have to stand a lot portez des chaussures à talons plats si vous devez rester debout pendant des heures;∎ I don't mind standing ça ne me gêne pas de rester debout;∎ don't stand near the edge ne restez pas près du bord;∎ don't just stand there, do something! ne restez pas là à ne rien faire!;∎ stand clear! écartez-vous!;∎ I saw her standing at the window je l'ai vue (debout) à la fenêtre;∎ a man stood in the doorway un homme se tenait à la porte;∎ do you see that man standing over there? vous voyez cet homme là-bas?;∎ where should I stand? - beside Yvonne où dois-je me mettre? - à côté d'Yvonne;∎ I'll be standing outside the theatre j'attendrai devant le théâtre;∎ small groups of men stood talking at street corners des hommes discutaient par petits groupes au coin des rues;∎ he was standing at the bar il était debout au comptoir;∎ is there a chair I can stand on? y a-t-il une chaise sur laquelle je puisse monter?;∎ they were standing a little way off ils se tenaient un peu à l'écart;∎ excuse me, you're standing on my foot excusez-moi, vous me marchez sur le pied;∎ American to stand in line faire la queue;∎ School stand in the corner! au coin!;∎ to stand upright or erect se tenir droit;∎ he was so nervous he couldn't stand still il était si nerveux qu'il ne tenait pas en place;∎ I stood perfectly still, hoping they wouldn't see me je me suis figé sur place en espérant qu'ils ne me verraient pas;∎ stand still! ne bougez pas!, ne bougez plus!;∎ stand with your feet apart écartez les pieds;∎ the heron was standing on one leg le héron se tenait debout sur une patte;∎ to stand on tiptoe se tenir sur la pointe des pieds;∎ stand and deliver! la bourse ou la vie!;∎ figurative to stand on one's own two feet se débrouiller tout seul;∎ figurative he left the others standing (gen) il était de loin le meilleur; (in race) il a laissé les autres sur place(c) (be upright → post, target etc) être debout;∎ not a stone (of the building) was left standing le bâtiment était complètement détruit;∎ the house is still standing la maison tient toujours debout;∎ the aqueduct has stood for centuries l'aqueduc est là depuis des siècles;∎ the wheat stood high les blés étaient hauts(d) (be supported, be mounted) reposer;∎ the coffin stood on trestles le cercueil reposait sur des tréteaux;∎ the house stands on solid foundations la maison repose ou est bâtie sur des fondations solides;∎ figurative this argument stands on three simple facts ce raisonnement repose sur trois simples faits∎ the fort stands on a hill la forteresse se trouve en haut d'une colline;∎ this is where the city gates once stood c'est ici qu'autrefois se dressaient les portes de la ville;∎ the piano stood in the centre of the room le piano était au centre ou occupait le centre de la pièce;∎ the bottles stood in rows of five les bouteilles étaient disposées en rangées de cinq;∎ do you see the lorry standing next to my car? vous voyez le camion qui est à côté de ma voiture?;∎ a wardrobe stood against one wall il y avait une armoire contre un mur(f) (indicating current state of affairs, situation) être;∎ how do things stand? où en est la situation?;∎ I'd like to know where I stand with you j'aimerais savoir où en sont les choses entre nous;∎ I don't know where I stand j'ignore quelle est ma situation ou ma position;∎ you never know how or where you stand with her on ne sait jamais sur quel pied danser avec elle;∎ as things stand, as matters stand telles que les choses se présentent;∎ he's dissatisfied with the contract as it stands il n'est pas satisfait du contrat tel qu'il a été rédigé;∎ just print the text as it stands imprimez le texte tel quel;∎ he stands accused of rape il est accusé de viol;∎ she stands alone in advocating this approach elle est la seule à préconiser cette approche;∎ I stand corrected je reconnais m'être trompé ou mon erreur;∎ the doors stood wide open les portes étaient grandes ouvertes;∎ I've got a taxi standing ready j'ai un taxi qui attend;∎ the police are standing ready to intervene la police se tient prête à intervenir;∎ the party stands united behind him le parti est uni derrière lui;∎ no-one stands above the law personne n'est au-dessus des lois;∎ their turnover now stands at three million pounds leur chiffre d'affaires atteint désormais les trois millions de livres;∎ the exchange rate stands at 5 francs to the dollar le taux de change est de 5 francs pour un dollar;∎ we're standing right behind you nous sommes avec vous;∎ with the union standing behind him avec le soutien du syndicat;∎ nothing stood between her and victory rien ne pouvait désormais l'empêcher de gagner;∎ it's the only thing standing between us and financial disaster c'est la seule chose qui nous empêche de sombrer dans un désastre financier;∎ to stand in need of… avoir besoin de…;∎ he stands in danger of losing his job il risque de perdre son emploi;∎ I stood lost in admiration j'en suis resté béat d'admiration;∎ to stand in sb's way bloquer le passage à qn;∎ figurative don't stand in my way! n'essaie pas de m'en empêcher!;∎ nothing stands in our way now maintenant, la voie est libre;∎ if you want to leave school I'm not going to stand in your way si tu veux quitter l'école, je ne m'y opposerai pas;∎ it's his lack of experience that stands in his way c'est son manque d'expérience qui le handicape;∎ their foreign debt stands in the way of economic recovery leur dette extérieure constitue un obstacle à la reprise économique;∎ her pride is the only thing standing in the way of their reconciliation son orgueil est le seul obstacle à leur réconciliation∎ the machines stood idle les machines étaient arrêtées;∎ the houses stood empty awaiting demolition les maisons, vidées de leurs occupants, attendaient d'être démolies;∎ time stood still le temps semblait s'être arrêté;∎ the car has been standing in the garage for a year ça fait un an que la voiture n'a pas bougé du garage;∎ I've decided to let my flight reservation stand j'ai décidé de ne pas changer ma réservation d'avion;∎ let the mixture stand until the liquid is clear laissez reposer le mélange jusqu'à ce que le liquide se clarifie;∎ the champion stands unbeaten le champion reste invaincu;∎ his theory stood unchallenged for a decade pendant dix ans, personne n'a remis en cause sa théorie;∎ the government will stand or fall on the outcome of this vote le maintien ou la chute du gouvernement dépend du résultat de ce vote;∎ united we stand, divided we fall l'union fait la force∎ my invitation still stands vous êtes toujours invité;∎ the verdict stands unless there's an appeal le jugement reste valable à moins que l'on ne fasse appel;∎ even with this new plan, our objection still stands ce nouveau projet ne remet pas en cause notre objection première;∎ the bet stands le pari tient;∎ what you said last week, does that still stand? et ce que tu as dit la semaine dernière, ça tient toujours?(i) (measure → person, tree) mesurer;∎ she stands 5 feet in her stocking feet elle mesure moins de 1,50 m pieds nus;∎ the building stands ten storeys high l'immeuble compte dix étages∎ this hotel stands among the best in the world cet hôtel figure parmi les meilleurs du monde;∎ American she stands first/last in her class elle est la première/la dernière de sa classe;∎ I know she stands high in your opinion je sais que tu as une très bonne opinion d'elle;∎ for price and quality, it stands high on my list en ce qui concerne le prix et la qualité, je le range ou le compte parmi les meilleurs∎ how or where does he stand on the nuclear issue? quelle est sa position ou son point de vue sur la question du nucléaire?;∎ you ought to tell them where you stand vous devriez leur faire part de votre position∎ to stand to lose risquer de perdre;∎ to stand to win avoir des chances de gagner;∎ they stand to make a huge profit on the deal ils ont des chances de faire un bénéfice énorme dans cette affaire;∎ no one stands to gain from a quarrel like this personne n'a rien à gagner d'une telle querelle∎ she stood for Waltham elle a été candidate à la circonscription de Waltham;∎ will he stand for re-election? va-t-il se représenter aux élections?;∎ she's standing as an independent elle se présente en tant que candidate indépendante∎ no standing (sign) arrêt interdit∎ you're standing c'est ta tournéerester là;∎ we stood about or around waiting for the flight announcement nous restions là à attendre que le vol soit annoncé;∎ the prisoners stood about or around in small groups les prisonniers se tenaient par petits groupes;∎ after Mass, the men stand about or around in the square après la messe, les hommes s'attardent sur la place;∎ I can't afford to pay people to stand around all day doing nothing je n'ai pas les moyens de payer les gens à ne rien faire;∎ I'm not just going to stand about waiting for you to make up your mind! je n'ai pas l'intention de rester là à attendre que tu te décides!(move aside) s'écarter;∎ stand aside, someone's fainted! écartez-vous, quelqu'un s'est évanoui!;∎ he politely stood aside to let us pass il s'écarta ou s'effaça poliment pour nous laisser passer;∎ figurative to stand aside in favour of sb (gen) laisser la voie libre à qn; Politics se désister en faveur de qn(a) (move back) reculer, s'écarter;∎ stand back from the doors! écartez-vous des portes!;∎ she stood back to look at herself in the mirror elle recula pour se regarder dans la glace;∎ the painting is better if you stand back from it le tableau est mieux si vous prenez du recul(b) (be set back) être en retrait ou à l'écart;∎ the house stands back from the road la maison est en retrait (de la route)(c) (take mental distance) prendre du recul;∎ I need to stand back and take stock j'ai besoin de prendre du recul et de faire le point➲ stand by(a) (support → person) soutenir;∎ I'll stand by you through thick and thin je te soutiendrai ou je resterai à tes côtés quoi qu'il arrive∎ to stand by an agreement respecter un accord;∎ I stand by what I said/my original analysis of the situation je m'en tiens à ce que j'ai dit/ma première analyse de la situation(a) (not intervene) rester là (sans rien faire ou sans intervenir);∎ how could you just stand by and watch them mistreat that poor dog? comment as-tu pu rester là à les regarder maltraiter ce pauvre chien (sans intervenir)?;∎ I stood by helplessly while they searched the room je restais là, impuissant, pendant qu'ils fouillaient la pièce(b) (be ready → person) être ou se tenir prêt; (→ vehicle) être prêt; (→ army, embassy) être en état d'alerte;∎ the police were standing by to disperse the crowd la police se tenait prête à disperser la foule;∎ we have an oxygen machine standing by nous avons une machine à oxygène prête en cas d'urgence;∎ stand by! attention!; Nautical paré!, attention!;∎ Aviation stand by for takeoff préparez-vous pour le décollage;∎ Radio stand by to receive prenez l'écoute;∎ Military standing by for orders! à vos ordres!∎ will he stand down in favour of a younger candidate? va-t-il se désister en faveur d'un candidat plus jeune?(b) (leave witness box) quitter la barre;∎ you may stand down, Mr Simms vous pouvez quitter la barre, M. Simms∎ stand down! (after drill) rompez (les rangs)!(workers) licencier(a) (represent) représenter;∎ what does DNA stand for? que veut dire l'abréviation ADN?;∎ the R stands for Ryan le R signifie Ryan;∎ the dove stands for peace la colombe symbolise la paix;∎ we want our name to stand for quality and efficiency nous voulons que notre nom soit synonyme de qualité et d'efficacité;∎ she supports the values and ideas the party once stood for elle soutient les valeurs et les idées qui furent autrefois celles du parti;∎ I detest everything that they stand for! je déteste tout ce qu'ils représentent!∎ I'm not going to stand for it! je ne le tolérerai ou permettrai pas!assurer le remplacement;∎ to stand in for sb remplacer qn; Cinema doubler qnNautical (coast, island) croiser au large de;∎ they have an aircraft carrier standing off Aden ils ont un porte-avions qui croise au large d'Aden(a) (move away) s'écarter∎ the veins in his neck stood out les veines de son cou saillaient ou étaient gonflées∎ the pink stands out against the green background le rose ressort ou se détache sur le fond vert;∎ the masts stood out against the sky les mâts se découpaient ou se dessinaient contre le ciel;∎ the name on the truck stood out clearly le nom sur le camion était bien visible;∎ she stands out in a crowd on la remarque dans la foule;∎ figurative I don't like to stand out in a crowd je n'aime pas me singulariser;∎ this one book stands out from all his others ce livre-ci surclasse tous ses autres livres;∎ there is no one issue which stands out as being more important than the others il n'y a pas une question qui soit plus importante que les autres;∎ the qualities that stand out in his work les qualités marquantes de son œuvre;∎ she stands out above all the rest elle surpasse ou surclasse tous les autres;∎ the day stands out in my memory cette journée est marquée d'une pierre blanche dans ma mémoire;∎ familiar that stands out a mile! (is very obvious) ça se voit comme le nez au milieu de la figure!;∎ it really stands out that he's not a local ça se voit ou se remarque vraiment qu'il n'est pas d'ici(c) (resist, hold out) tenir bon, tenir, résister;∎ they won't be able to stand out for long ils ne pourront pas tenir ou résister longtemps;∎ to stand out against (attack, enemy) résister à; (change, tax increase) s'opposer avec détermination à;∎ to stand out for sth revendiquer qch;∎ they are standing out for a pay increase ils revendiquent ou réclament une augmentation de salaire(watch over) surveiller;∎ I can't work with someone standing over me je ne peux pas travailler quand quelqu'un regarde par-dessus mon épaule;∎ she stood over him until he'd eaten every last bit elle ne l'a pas lâché avant qu'il ait mangé la dernière mietteBritish (postpone) remettre (à plus tard);∎ I'd prefer to stand this discussion over until we have more information je préférerais remettre cette discussion jusqu'à ce que nous disposions de plus amples renseignementsBritish être remis (à plus tard);∎ we have two items standing over from the last meeting il nous reste deux points à régler depuis la dernière réunion➲ stand toMilitary mettre en état d'alerteMilitary se mettre en état d'alerte;∎ stand to! à vos postes!être ou rester solidaire➲ stand up(a) (set upright → chair, bottle) mettre debout;∎ they stood the prisoner up against a tree ils ont adossé le prisonnier à un arbre;∎ stand the ladder up against the wall mettez ou appuyez l'échelle contre le mur;∎ to stand a child up (again) (re)mettre un enfant sur ses pieds∎ I was stood up twice in a row on m'a posé un lapin deux fois de suite(a) (rise to one's feet) se lever, se mettre debout;∎ she stood up to offer me her seat elle se leva pour m'offrir sa place;∎ stand up! levez-vous!, debout!;∎ figurative to stand up and be counted avoir le courage de ses opinions(b) (be upright) être debout;∎ I can't get the candle to stand up straight je n'arrive pas à faire tenir la bougie droite∎ how is that repair job standing up? est-ce que cette réparation tient toujours?(d) (be valid → argument, claim) être valable, tenir debout;∎ his evidence won't stand up in court son témoignage ne sera pas valable en justicedéfendre;∎ to stand up for oneself se défendre∎ to stand up to sth résister à qch;∎ to stand up to sb tenir tête à ou faire face à qn;∎ he's too weak to stand up to her il est trop faible pour lui tenir tête;∎ she had a hard time standing up to their criticism ça ne lui a pas été facile de faire face à leurs critiques;∎ it won't stand up to that sort of treatment ça ne résistera pas à ce genre de traitement;∎ her hypothesis doesn't stand up to empirical testing son hypothèse ne résiste pas à la vérification expérimentale -
16 Bigelow, Erastus Brigham
SUBJECT AREA: Textiles[br]b. 2 April 1814 West Boyleston, Massachusetts, USAd. 6 December 1879 USA[br]American inventor of power looms for making lace and many types of carpets.[br]Bigelow was born in West Boyleston, Massachusetts, where his father struggled as a farmer, wheelwright, and chairmaker. Before he was 20, Bigelow had many different jobs, among them farm labourer, clerk, violin player and cotton-mill employee. In 1830, he went to Leicester Academy, Massachusetts, but he could not afford to go on to Harvard. He sought work in Boston, New York and elsewhere, making various inventions.The most important of his early inventions was the power loom of 1837 for making coach lace. This loom contained all the essential features of his carpet looms, which he developed and patented two years later. He formed the Clinton Company for manufacturing carpets at Leicester, Massachusetts, but the factory became so large that its name was adopted for the town. The next twenty years saw various mechanical discoveries, while his range of looms was extended to cover Brussels, Wilton, tapestry and velvet carpets. Bigelow has been justly described as the originator of every fundamental device in these machines, which were amongst the largest textile machines of their time. The automatic insertion and withdrawal of strong wires with looped ends was the means employed to raise the looped pile of the Brussels carpets, while thinner wires with a knife blade at the end raised and then severed the loops to create the rich Wilton pile. At the Great Exhibition in 1851, it was declared that his looms made better carpets than any from hand looms. He also developed other looms for special materials.He became a noted American economist, writing two books about tariff problems, advocating that the United States should not abandon its protectionist policies. In 1860 he was narrowly defeated in a Congress election. The following year he was a member of the committee that established the Massachusetts Institute of Technology.[br]Further ReadingNational Cyclopedia of American Biography III (the standard account of his life). F.H.Sawyer, 1927, Clinton Item (provides a broad background to his life).C.Singer (ed.), 1958, A History of Technology, Vol. V, Oxford: Clarendon Press (describes Bigelow's inventions).RLHBiographical history of technology > Bigelow, Erastus Brigham
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17 Congreve, Sir William
SUBJECT AREA: Weapons and armour[br]b. 20 May 1772 London, Englandd. 16 May 1828 Toulouse, France[br]English developer of military rockets.[br]He was the eldest son of Lieutenant-General Sir William Congreve, Colonel Commandant of the Royal Artillery, Superintendent of Military Machines and Superintendent Comptroller of the Royal Laboratory at Woolwich, and the daughter of a naval officer. Congreve passed through the Naval Academy at Woolwich and in 1791 was attached to the Royal Laboratory (formerly known as the Woolwich Arsenal), of which his father was then in command. In the 1790s, an Indian prince, Hyder Ali, had had some success against British troops with solid-fuelled rockets, and young Congreve set himself to develop the idea. By about 1806 he had made some 13,000 rockets, each with a range of about 2 km (1¼ miles). The War Office approved their use, and they were first tested in action at sea during the sieges of Boulogne and Copenhagen in 1806 and 1807 respectively. Congreve was commissioned to raise two companies of rocket artillery; in 1813 he commanded one of his rocket companies at the Battle of Leipzig, where although the rockets did little damage to the enemy, the noise and glare of the explosions had a considerable effect in frightening the French and caused great confusion; for this, the Tsar of Russia awarded Congreve a knighthood. The rockets were similarly effective in other battles, including the British attack on Fort McHenry, near Baltimore, in 1814; it is said that this was the inspiration for the lines "the rocket's red glare, the bombs bursting in air" in Francis Scott Key's poem The Star Spangled Banner, which became the United States' national anthem.Congreve's father died in 1814, and he succeeded him in the baronetcy and as Comptroller of the Royal Laboratory and Superintendent of Military Machines, holding this post until his death. For the last ten years of his life he was Member of Parliament for Plymouth, having previously represented Gatton when elected for that constituency in 1812.[br]Principal Honours and DistinctionsFRS 1812.Further ReadingF.H.Winter, 1990, The First Golden Age of Rocketry: Congreve and Hale Rockets of the Nine-teenth Century, Washington, DC: Smithsonian Institution Press.IMcN -
18 Perkins, Jacob
[br]b. 9 July 1766 Newburyport, Massachusetts, USAd. 30 July 1849 London, England[br]American inventor of a nail-making machine and a method of printing banknotes, investigator of the use of steam at very high pressures.[br]Perkins's occupation was that of a gold-and silversmith; while he does not seem to have followed this after 1800, however, it gave him the skills in working metals which he would continue to employ in his inventions. He had been working in America for four years before he patented his nail-making machine in 1796. At the time there was a great shortage of nails because only hand-forged ones were available. By 1800, other people had followed his example and produced automatic nail-making machines, but in 1811 Perkins' improved machines were introduced to England by J.C. Dyer. Eventually Perkins had twenty-one American patents for a range of inventions in his name.In 1799 Perkins invented a system of engraving steel plates for printing banknotes, which became the foundation of modern siderographic work. It discouraged forging and was adopted by many banking houses, including the Federal Government when the Second United States Bank was inaugurated in 1816. This led Perkins to move to Philadelphia. In the intervening years, Perkins had improved his nail-making machine, invented a machine for graining morocco leather in 1809, a fire-engine in 1812, a letter-lock for bank vaults and improved methods of rolling out spoons in 1813, and improved armament and equipment for naval ships from 1812 to 1815.It was in Philadelphia that Perkins became interested in the steam engine, when he met Oliver Evans, who had pioneered the use of high-pressure steam. He became a member of the American Philosophical Society and conducted experiments on the compressibility of water before a committee of that society. Perkins claimed to have liquified air during his experiments in 1822 and, if so, was the real discoverer of the liquification of gases. In 1819 he came to England to demonstrate his forgery-proof system of printing banknotes, but the Bank of England was the only one which did not adopt his system.While in London, Perkins began to experiment with the highest steam pressures used up to that time and in 1822 took out his first of nineteen British patents. This was followed by another in 1823 for a 10 hp (7.5 kW) engine with only 2 in. (51 mm) bore, 12 in. (305 mm) stroke but a pressure of 500 psi (35 kg/cm2), for which he claimed exceptional economy. After 1826, Perkins abandoned his drum boiler for iron tubes and steam pressures of 1,500 psi (105 kg/cm2), but the materials would not withstand such pressures or temperatures for long. It was in that same year that he patented a form of uniflow cylinder that was later taken up by L.J. Todd. One of his engines ran for five days, continuously pumping water at St Katherine's docks, but Perkins could not raise more finance to continue his experiments.In 1823 one his high-pressure hot-water systems was installed to heat the Duke of Wellington's house at Stratfield Saye and it acquired a considerable vogue, being used by Sir John Soane, among others. In 1834 Perkins patented a compression ice-making apparatus, but it did not succeed commercially because ice was imported more cheaply from Norway as ballast for sailing ships. Perkins was often dubbed "the American inventor" because his inquisitive personality allied to his inventive ingenuity enabled him to solve so many mechanical challenges.[br]Further ReadingHistorical Society of Pennsylvania, 1943, biography which appeared previously as a shortened version in the Transactions of the Newcomen Society 24.D.Bathe and G.Bathe, 1943–5, "The contribution of Jacob Perkins to science and engineering", Transactions of the Newcomen Society 24.D.S.L.Cardwell, 1971, From Watt to Clausius. The Rise of Thermodynamics in the Early Industrial Age, London: Heinemann (includes comments on the importance of Perkins's steam engine).A.F.Dufton, 1940–1, "Early application of engineering to warming of buildings", Transactions of the Newcomen Society 21 (includes a note on Perkins's application of a high-pressure hot-water heating system).RLH -
19 Polhem, Christopher
SUBJECT AREA: Mining and extraction technology[br]b. 18 December 1661 Tingstade, Gotland, Sweden d. 1751[br]Swedish engineer and inventor.[br]He was the eldest son of Wolf Christopher Polhamma, a merchant. The father died in 1669 and the son was sent by his stepfather to an uncle in Stockholm who found him a place in the Deutsche Rechenschule. After the death of his uncle, he was forced to find employment, which he did with the Biorenklou family near Uppsala where he eventually became a kind of estate bailiff. It was during this period that he started to work with a lathe, a forge and at carpentry, displaying great technical ability. He realized that without further education he had little chance of making anything of his life, and accordingly, in 1687, he registered at the University of Uppsala where he studied astronomy and mathematics, remaining there for three years. He also repaired two astronomical pendulum clocks as well as the decrepit medieval clock in the cathedral. After a year's work he had this clock running properly: this was his breakthrough. He was summoned to Stockholm where the King awarded him a salary of 500 dalers a year as an encouragement to further efforts. Around this time, one of increasing mechanization and when mining was Sweden's principal industry, Pohlem made a model of a hoist frame for mines and the Mines Authority encouraged him to develop his ideas. In 1693 Polhem completed the Blankstot hoist at the Stora Kopparberg mine, which attracted great interest on the European continent.From 1694 to 1696 Polhem toured factories, mills and mines abroad in Germany, Holland, England and France, studying machinery of all kinds and meeting many foreign engineers. In 1698 he was appointed Director of Mining Engineering in Sweden, and in 1700 he became Master of Construction in the Falu Mine. He installed the Karl XII hoist there, powered by moving beams from a distant water-wheel. His plan of 1697 for all the machinery at the Falu mine to be driven by three large and remote water-wheels was never completed.In 1707 he was invited by the Elector of Hanover to visit the mines in the Harz district, where he successfully explained many of his ideas which were adopted by the local engineers. In 1700, in conjunction with Gabriel Stierncrona, he founded the Stiersunds Bruk at Husby in Southern Dalarna, a factory for the mass production of metal goods in iron, steel and bronze. Simple articles such as pans, trays, bowls, knives, scissors and mirrors were made there, together with the more sophisticated Polhem lock and the Stiersunds clock. Production was based on water power. Gear cutting for the clocks, shaping hammers for plates, file cutting and many other operations were all water powered, as was a roller mill for the sheet metal used in the factory. He also designed textile machinery such as stocking looms and spinning frames and machines for the manufacture of ribbons and other things.In many of his ideas Polhem was in advance of his time and Swedish country society was unable to absorb them. This was largely the reason for the Stiersund project being only a partial success. Polhem, too, was of a disputatious nature, self-opinionated almost to the point of conceit. He was a prolific writer, leaving over 20,000 pages of manuscript notes, drafts, essays on a wide range of subjects, which included building, brick-making, barrels, wheel-making, bell-casting, organ-building, methods of stopping a horse from bolting and a curious tap "to prevent serving maids from sneaking wine from the cask", the construction of ploughs and threshing machines. His major work, Kort Berattelse om de Fornamsta Mechaniska Inventioner (A Brief Account of the Most Famous Inventions), was printed in 1729 and is the main source of knowledge about his technological work. He is also known for his "mechanical alphabet", a collection of some eighty wooden models of mechanisms for educational purposes. It is in the National Museum of Science and Technology in Stockholm.[br]Bibliography1729, Kort Berattelse om de Fornamsta Mechaniska Inventioner (A Brief Account of the Most Famous Inventions).Further Reading1985, Christopher Polhem, 1661–1751, TheSwedish Daedalus' (catalogue of a travelling exhibition from the Swedish Institute in association with the National Museum of Science and Technology), Stockholm.IMcN -
20 Computers
The brain has been compared to a digital computer because the neuron, like a switch or valve, either does or does not complete a circuit. But at that point the similarity ends. The switch in the digital computer is constant in its effect, and its effect is large in proportion to the total output of the machine. The effect produced by the neuron varies with its recovery from [the] refractory phase and with its metabolic state. The number of neurons involved in any action runs into millions so that the influence of any one is negligible.... Any cell in the system can be dispensed with.... The brain is an analogical machine, not digital. Analysis of the integrative activities will probably have to be in statistical terms. (Lashley, quoted in Beach, Hebb, Morgan & Nissen, 1960, p. 539)It is essential to realize that a computer is not a mere "number cruncher," or supercalculating arithmetic machine, although this is how computers are commonly regarded by people having no familiarity with artificial intelligence. Computers do not crunch numbers; they manipulate symbols.... Digital computers originally developed with mathematical problems in mind, are in fact general purpose symbol manipulating machines....The terms "computer" and "computation" are themselves unfortunate, in view of their misleading arithmetical connotations. The definition of artificial intelligence previously cited-"the study of intelligence as computation"-does not imply that intelligence is really counting. Intelligence may be defined as the ability creatively to manipulate symbols, or process information, given the requirements of the task in hand. (Boden, 1981, pp. 15, 16-17)The task is to get computers to explain things to themselves, to ask questions about their experiences so as to cause those explanations to be forthcoming, and to be creative in coming up with explanations that have not been previously available. (Schank, 1986, p. 19)In What Computers Can't Do, written in 1969 (2nd edition, 1972), the main objection to AI was the impossibility of using rules to select only those facts about the real world that were relevant in a given situation. The "Introduction" to the paperback edition of the book, published by Harper & Row in 1979, pointed out further that no one had the slightest idea how to represent the common sense understanding possessed even by a four-year-old. (Dreyfus & Dreyfus, 1986, p. 102)A popular myth says that the invention of the computer diminishes our sense of ourselves, because it shows that rational thought is not special to human beings, but can be carried on by a mere machine. It is a short stop from there to the conclusion that intelligence is mechanical, which many people find to be an affront to all that is most precious and singular about their humanness.In fact, the computer, early in its career, was not an instrument of the philistines, but a humanizing influence. It helped to revive an idea that had fallen into disrepute: the idea that the mind is real, that it has an inner structure and a complex organization, and can be understood in scientific terms. For some three decades, until the 1940s, American psychology had lain in the grip of the ice age of behaviorism, which was antimental through and through. During these years, extreme behaviorists banished the study of thought from their agenda. Mind and consciousness, thinking, imagining, planning, solving problems, were dismissed as worthless for anything except speculation. Only the external aspects of behavior, the surface manifestations, were grist for the scientist's mill, because only they could be observed and measured....It is one of the surprising gifts of the computer in the history of ideas that it played a part in giving back to psychology what it had lost, which was nothing less than the mind itself. In particular, there was a revival of interest in how the mind represents the world internally to itself, by means of knowledge structures such as ideas, symbols, images, and inner narratives, all of which had been consigned to the realm of mysticism. (Campbell, 1989, p. 10)[Our artifacts] only have meaning because we give it to them; their intentionality, like that of smoke signals and writing, is essentially borrowed, hence derivative. To put it bluntly: computers themselves don't mean anything by their tokens (any more than books do)-they only mean what we say they do. Genuine understanding, on the other hand, is intentional "in its own right" and not derivatively from something else. (Haugeland, 1981a, pp. 32-33)he debate over the possibility of computer thought will never be won or lost; it will simply cease to be of interest, like the previous debate over man as a clockwork mechanism. (Bolter, 1984, p. 190)t takes us a long time to emotionally digest a new idea. The computer is too big a step, and too recently made, for us to quickly recover our balance and gauge its potential. It's an enormous accelerator, perhaps the greatest one since the plow, twelve thousand years ago. As an intelligence amplifier, it speeds up everything-including itself-and it continually improves because its heart is information or, more plainly, ideas. We can no more calculate its consequences than Babbage could have foreseen antibiotics, the Pill, or space stations.Further, the effects of those ideas are rapidly compounding, because a computer design is itself just a set of ideas. As we get better at manipulating ideas by building ever better computers, we get better at building even better computers-it's an ever-escalating upward spiral. The early nineteenth century, when the computer's story began, is already so far back that it may as well be the Stone Age. (Rawlins, 1997, p. 19)According to weak AI, the principle value of the computer in the study of the mind is that it gives us a very powerful tool. For example, it enables us to formulate and test hypotheses in a more rigorous and precise fashion than before. But according to strong AI the computer is not merely a tool in the study of the mind; rather the appropriately programmed computer really is a mind in the sense that computers given the right programs can be literally said to understand and have other cognitive states. And according to strong AI, because the programmed computer has cognitive states, the programs are not mere tools that enable us to test psychological explanations; rather, the programs are themselves the explanations. (Searle, 1981b, p. 353)What makes people smarter than machines? They certainly are not quicker or more precise. Yet people are far better at perceiving objects in natural scenes and noting their relations, at understanding language and retrieving contextually appropriate information from memory, at making plans and carrying out contextually appropriate actions, and at a wide range of other natural cognitive tasks. People are also far better at learning to do these things more accurately and fluently through processing experience.What is the basis for these differences? One answer, perhaps the classic one we might expect from artificial intelligence, is "software." If we only had the right computer program, the argument goes, we might be able to capture the fluidity and adaptability of human information processing. Certainly this answer is partially correct. There have been great breakthroughs in our understanding of cognition as a result of the development of expressive high-level computer languages and powerful algorithms. However, we do not think that software is the whole story.In our view, people are smarter than today's computers because the brain employs a basic computational architecture that is more suited to deal with a central aspect of the natural information processing tasks that people are so good at.... hese tasks generally require the simultaneous consideration of many pieces of information or constraints. Each constraint may be imperfectly specified and ambiguous, yet each can play a potentially decisive role in determining the outcome of processing. (McClelland, Rumelhart & Hinton, 1986, pp. 3-4)Historical dictionary of quotations in cognitive science > Computers
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