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41 mine
мина; фугас; подкоп; минировать, подводить мину; подрывать, взрывать; минныйartillery (artillery-delivered, artilleryscatterable) mine — мина, устанавливаемая (дистанционно) с помощью артиллерийской системы
— AA mine— acoustic influence mine— aircraft-droppable mine— AP mine— AT mine— bar mine— booby-trapped mine— box mine— gas mine— hollow-charge effect mine— ice mine— magnetic impulse mine— mobile water mine— pot mine— pressure-action mine— scatterable mine— SP mine -
42 printer
1. печатающее устройство2. копировально-множительный аппарат3. негатив; диапозитив; фотоформа4. печатник, полиграфистjob printer — печатник, выполняющий акцидентные работы
5. амер. печатная машина6. владелец типографии7. раклистback-to-back vacuum contact printer — вакуумный контактно-копировальный станок для двустороннего копирования
8. негатив для чёрной краски9. печатная форма для чёрной краски10. чёрный пигментcatadioptric projection printer — аппарат с зеркально-линзовой оптической системой для проекционного копирования
cathode-ray tube printer — устройство, распечатывающее изображение с экрана электронно-лучевой трубки
11. печатник, выпускающий многокрасочную продукцию12. копировально-множительный аппарат для изготовления многокрасочных копий13. печатник коммерческой продукции14. машина, печатающая коммерческую продукциюcomputer-controlled printer — печатная машина, управляемая ЭВМ
15. устройство для непрерывного печатания16. копировальный аппарат непрерывного действия; аппарат с безвыстойным перемещением копировального материала через экспонирующее и обрабатывающее устройства17. печатник бесконечных формуляров18. машина для печатания бесконечных формуляровcopy number printer — нумератор, устройство, нумерующее копии, устройство, впечатывающее номера копий
correspondence-quality printer — печатающее устройство, дающее изображение хорошего качества
daisy-wheel printer — печатающее устройство типа «ромашка»
diazo printer — диазокопировальный аппарат; светокопировальный аппарат; диазодубликатор
drum printer — барабанное печатающее устройство, печатающее устройство барабанного типа
dyeline printer — диазокопировальный аппарат; светокопировальный аппарат; диазодубликатор
electrophotographic nonimpact printer — электрофотографическое печатающее устройство бесконтактного действия; электрофотографическое бесконтактное печатающее устройство
electrothermal printer — электротермопечатающее устройство, устройство электротермографической печати
enlarger printer — копировально-увеличительный аппарат, репрографический аппарат для получения увеличенных копий микроизображения
flexible biased selective web printer — печатающее устройство с гибкими подвижными шрифтовыми лентами
19. изготовитель формуляров20. машина для печатания формуляров21. копировальный аппарат для изготовления комплектов копий, используемых в качестве оригиналов в других машинах22. печатник глубокой печатиprinter layout — формат печати; макет печати
23. машина глубокой печатиhard-copy printer — печатающее устройство, выдающее копию
high-speed data line printer — быстродействующее печатающее устройство для построчного вывода информации
impact printer — печатающее устройство ударного действия, ударное печатающее устройство
ink mist type printer — устройство для печатания красочным туманом, аэрозольное печатающее устройство
in-plant printer — печатник ведомственной типографии, печатник внутрифирменной типографии
24. печатник акцидентной продукции25. машина для печатания акцидентной продукции26. печатник на машине высокой печатиpassbook printer — принтер для печати на сберегательных/чековых книжках
27. машина высокой печатиletter-quality printer — печатающее устройство, дающее изображение хорошего качества
line printer — построчно-печатающее устройство, устройство для построчного печатания
mist printer — устройство для печатания красочным туманом, аэрозольное печатающее устройство
mosaic printer — печатающее устройство с точечным воспроизведением знаков, мозаичное печатающее устройство
nonimpact printer — бесконтактное печатающее устройство, устройство бесконтактной печати
28. печатник на офсетной машине, офсетчик29. машина офсетной печатиpad-transfer printer — машина для тампопечати, тампопечатная машина
petal printer — печатающее устройство типа «ромашка»
photographic printer — фотокопировальный аппарат; фотопечатающее устройство
rotary printer — копировальное устройство для изогнутых пластин, копировальное устройство ротационного типа
pretty printer — программа "красивой" печати; программа печати в наглядной форме
30. печатник трафаретной печатиmagnetic character printer — магнитопечатающее устройство; устройство печати магнитных знаков
31. печатник шёлкотрафаретной печати32. шёлкотрафаретная печатная машина33. устройство для трафаретной печати34. ротаторthermal printer — термопечатающее устройство, устройство термографской печати
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43 Bodolee Sutta
This plant, a native of India, produces a fibre of great strength and flexibility, and with a silk-like appearance, and is adapted to the finest textile purposes in India. It also possesses remarkable durability. The process of obtaining the fibres are carried on by the natives' handwork, and are too slow, laborious and costly for commercial use. -
44 strain
Iபெரு முயற்சிIIScience/Technology - Wissenschaft /Technikவிகாரம்HIV/AIDSஇராசிIVகடுமுயற்சி செய்; நலிசோர்வுV(i.e. as in physics)விகாரம்VI(i.e. through a sieve)வடித்தல்இறுக்கம்தகவுத்தி£¤பு, இழுவிசைIXதி£¤புXவிகாரம்XIஇராசிகுலவகைநெருக்கடிPhysiology & Hygieneவிகாரம்XVதிரிபுதிணறல், மிகை முயற்சிGenetics & Cytologyகுலவகைவகை, இனப்பிரிவு, நலிவு, தளர்வு, சோர்வு, உழைப்பலுப்பு அலுப்புவிகாரம்XXவிகளம்விகாரம்விகளம்விகாரம்தி£¤புகணம்விகளம்ஆய்வுவகைவிகுலம், தி£¤புவிகாரம்விகாரம்விகாரம் -
45 size
A n1 ( dimensions) (of person, head, hand, nose) taille f ; (of box, glass, plate, stamp) grandeur f ; (of building, room, garden) grandeur f, dimensions fpl ; ( of tree) taille f, grandeur f ; (of apple, egg, bead) grosseur f, calibre m ; (of carpet, chair, bed, machine) dimensions fpl ; (of book, parcel) grosseur f, dimensions fpl ; (of paper, envelope, picture) taille f, dimensions fpl ; (of country, island, estate) étendue f ; a town of some size une ville assez importante or assez grande ; chairs of all sizes des chaises de toutes les grandeurs ; it's about the size of an egg/of this room c'est à peu près de la grosseur d'un œuf/de la grandeur de cette pièce ; he 's about your size il est à peu près de ta taille ; to increase in size [plant, tree] pousser, s'accroître ; [company, town] s'agrandir ; to cut sth to size découper qch à la dimension voulue ; to be of a size [people] être de la même taille ; [boxes] être de la même grandeur ;2 ( number) (of population, audience) importance f ; (of class, school, company) effectif m ; to increase in size [population] augmenter ;3 ⇒ Sizes Fashn (of jacket, dress, trousers, bra) taille f ; ( of shirt collar) encolure f ; (of shoes, gloves) pointure f ; what size are you?, what size do you take? (in jacket, trousers, dress) quelle taille faites-vous? ; ( in shoes) quelle pointure faites-vous? ; what size waist are you? quel est votre tour de taille? ; what size shoes do you take? quelle pointure faites-vous?, vous chaussez du combien? ; to take size X ( in clothes) faire du X ; to take size X shoes chausser or faire du X ; I think you need a size bigger je crois qu'il vous faut la taille or la pointure au-dessus ; that jacket is two sizes too big ce veston est deux tailles trop grand ; ‘one size’ ‘taille unique’ ; try this for size lit essayez ceci pour voir si c'est votre taille ; fig essayez ceci pour voir si cela vous convient ;B vtr1 classer [qch] selon la grosseur or le calibre, calibrer [eggs, fruit] ;4 Comput dimensionner [window].that's about the size of it! c'est à peu près ça! ; to cut sb down to size remettre qn à sa place, rabattre le caquet à qn ○.■ size up:▶ size up [sb/sth], size [sb/sth] up jauger, juger [person] ; évaluer [qch] du regard [room, surroundings] ; évaluer [situation] ; mesurer [problem, difficulty] ; they seemed to be sizing each other up ils avaient l'air de se mesurer des yeux. -
46 Evans, Oliver
SUBJECT AREA: Agricultural and food technology[br]b. 13 September 1755 Newport, Delaware, USAd. 15 April 1819 New York, USA[br]American millwright and inventor of the first automatic corn mill.[br]He was the fifth child of Charles and Ann Stalcrop Evans, and by the age of 15 he had four sisters and seven brothers. Nothing is known of his schooling, but at the age of 17 he was apprenticed to a Newport wheelwright and wagon-maker. At 19 he was enrolled in a Delaware Militia Company in the Revolutionary War but did not see active service. About this time he invented a machine for bending and cutting off the wires in textile carding combs. In July 1782, with his younger brother, Joseph, he moved to Tuckahoe on the eastern shore of the Delaware River, where he had the basic idea of the automatic flour mill. In July 1782, with his elder brothers John and Theophilus, he bought part of his father's Newport farm, on Red Clay Creek, and planned to build a mill there. In 1793 he married Sarah Tomlinson, daughter of a Delaware farmer, and joined his brothers at Red Clay Creek. He worked there for some seven years on his automatic mill, from about 1783 to 1790.His system for the automatic flour mill consisted of bucket elevators to raise the grain, a horizontal screw conveyor, other conveying devices and a "hopper boy" to cool and dry the meal before gathering it into a hopper feeding the bolting cylinder. Together these components formed the automatic process, from incoming wheat to outgoing flour packed in barrels. At that time the idea of such automation had not been applied to any manufacturing process in America. The mill opened, on a non-automatic cycle, in 1785. In January 1786 Evans applied to the Delaware legislature for a twenty-five-year patent, which was granted on 30 January 1787 although there was much opposition from the Quaker millers of Wilmington and elsewhere. He also applied for patents in Pennsylvania, Maryland and New Hampshire. In May 1789 he went to see the mill of the four Ellicot brothers, near Baltimore, where he was impressed by the design of a horizontal screw conveyor by Jonathan Ellicot and exchanged the rights to his own elevator for those of this machine. After six years' work on his automatic mill, it was completed in 1790. In the autumn of that year a miller in Brandywine ordered a set of Evans's machinery, which set the trend toward its general adoption. A model of it was shown in the Market Street shop window of Robert Leslie, a watch-and clockmaker in Philadelphia, who also took it to England but was unsuccessful in selling the idea there.In 1790 the Federal Plant Laws were passed; Evans's patent was the third to come within the new legislation. A detailed description with a plate was published in a Philadelphia newspaper in January 1791, the first of a proposed series, but the paper closed and the series came to nothing. His brother Joseph went on a series of sales trips, with the result that some machinery of Evans's design was adopted. By 1792 over one hundred mills had been equipped with Evans's machinery, the millers paying a royalty of $40 for each pair of millstones in use. The series of articles that had been cut short formed the basis of Evans's The Young Millwright and Miller's Guide, published first in 1795 after Evans had moved to Philadelphia to set up a store selling milling supplies; it was 440 pages long and ran to fifteen editions between 1795 and 1860.Evans was fairly successful as a merchant. He patented a method of making millstones as well as a means of packing flour in barrels, the latter having a disc pressed down by a toggle-joint arrangement. In 1801 he started to build a steam carriage. He rejected the idea of a steam wheel and of a low-pressure or atmospheric engine. By 1803 his first engine was running at his store, driving a screw-mill working on plaster of Paris for making millstones. The engine had a 6 in. (15 cm) diameter cylinder with a stroke of 18 in. (45 cm) and also drove twelve saws mounted in a frame and cutting marble slabs at a rate of 100 ft (30 m) in twelve hours. He was granted a patent in the spring of 1804. He became involved in a number of lawsuits following the extension of his patent, particularly as he increased the licence fee, sometimes as much as sixfold. The case of Evans v. Samuel Robinson, which Evans won, became famous and was one of these. Patent Right Oppression Exposed, or Knavery Detected, a 200-page book with poems and prose included, was published soon after this case and was probably written by Oliver Evans. The steam engine patent was also extended for a further seven years, but in this case the licence fee was to remain at a fixed level. Evans anticipated Edison in his proposal for an "Experimental Company" or "Mechanical Bureau" with a capital of thirty shares of $100 each. It came to nothing, however, as there were no takers. His first wife, Sarah, died in 1816 and he remarried, to Hetty Ward, the daughter of a New York innkeeper. He was buried in the Bowery, on Lower Manhattan; the church was sold in 1854 and again in 1890, and when no relative claimed his body he was reburied in an unmarked grave in Trinity Cemetery, 57th Street, Broadway.[br]Further ReadingE.S.Ferguson, 1980, Oliver Evans: Inventive Genius of the American Industrial Revolution, Hagley Museum.G.Bathe and D.Bathe, 1935, Oliver Evans: Chronicle of Early American Engineering, Philadelphia, Pa.IMcN -
47 Ferranti, Sebastian Ziani de
[br]b. 9 April 1864 Liverpool, Englandd. 13 January 1930 Zurich, Switzerland[br]English manufacturing engineer and inventor, a pioneer and early advocate of high-voltage alternating-current electric-power systems.[br]Ferranti, who had taken an interest in electrical and mechanical devices from an early age, was educated at St Augustine's College in Ramsgate and for a short time attended evening classes at University College, London. Rather than pursue an academic career, Ferranti, who had intense practical interests, found employment in 1881 with the Siemens Company (see Werner von Siemens) in their experimental department. There he had the opportunity to superintend the installation of electric-lighting plants in various parts of the country. Becoming acquainted with Alfred Thomson, an engineer, Ferranti entered into a short-lived partnership with him to manufacture the Ferranti alternator. This generator, with a unique zig-zag armature, had an efficiency exceeding that of all its rivals. Finding that Sir William Thomson had invented a similar machine, Ferranti formed a company with him to combine the inventions and produce the Ferranti- Thomson machine. For this the Hammond Electric Light and Power Company obtained the sole selling rights.In 1885 the Grosvenor Gallery Electricity Supply Corporation was having serious problems with its Gaulard and Gibbs series distribution system. Ferranti, when consulted, reviewed the design and recommended transformers connected across constant-potential mains. In the following year, at the age of 22, he was appointed Engineer to the company and introduced the pattern of electricity supply that was eventually adopted universally. Ambitious plans by Ferranti for London envisaged the location of a generating station of unprecedented size at Deptford, about eight miles (13 km) from the city, a departure from the previous practice of placing stations within the area to be supplied. For this venture the London Electricity Supply Corporation was formed. Ferranti's bold decision to bring the supply from Deptford at the hitherto unheard-of pressure of 10,000 volts required him to design suitable cables, transformers and generators. Ferranti planned generators with 10,000 hp (7,460 kW)engines, but these were abandoned at an advanced stage of construction. Financial difficulties were caused in part when a Board of Trade enquiry in 1889 reduced the area that the company was able to supply. In spite of this adverse situation the enterprise continued on a reduced scale. Leaving the London Electricity Supply Corporation in 1892, Ferranti again started his own business, manufacturing electrical plant. He conceived the use of wax-impregnated paper-insulated cables for high voltages, which formed a landmark in the history of cable development. This method of flexible-cable manufacture was used almost exclusively until synthetic materials became available. In 1892 Ferranti obtained a patent which set out the advantages to be gained by adopting sector-shaped conductors in multi-core cables. This was to be fundamental to the future design and development of such cables.A total of 176 patents were taken out by S.Z. de Ferranti. His varied and numerous inventions included a successful mercury-motor energy meter and improvements to textile-yarn produc-tion. A transmission-line phenomenon where the open-circuit voltage at the receiving end of a long line is greater than the sending voltage was named the Ferranti Effect after him.[br]Principal Honours and DistinctionsFRS 1927. President, Institution of Electrical Engineers 1910 and 1911. Institution of Electrical Engineers Faraday Medal 1924.Bibliography18 July 1882, British patent no. 3,419 (Ferranti's first alternator).13 December 1892, British patent no. 22,923 (shaped conductors of multi-core cables). 1929, "Electricity in the service of man", Journal of the Institution of Electrical Engineers 67: 125–30.Further ReadingG.Z.de Ferranti and R. Ince, 1934, The Life and Letters of Sebastian Ziani de Ferranti, London.A.Ridding, 1964, S.Z.de Ferranti. Pioneer of Electric Power, London: Science Museum and HMSO (a concise biography).R.H.Parsons, 1939, Early Days of the Power Station Industry, Cambridge, pp. 21–41.GWBiographical history of technology > Ferranti, Sebastian Ziani de
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48 Leeuwenhoek, Antoni van
[br]b. 24 October 1632 Delft, Netherlandsd. 1723 Delft, Netherlands[br]Dutch pioneer of microscopy.[br]He was the son of a basketmaker, Philip Tonisz Leeuwenhoek, and Grietje Jacobsdr van den Berch, a brewer's daughter. After the death of his father in 1637, his mother married the painter Jacob Jansz Molijn. He went to school at Warmond and, later to an uncle who was Sheriff of Benthuizen. In 1648 he went to Amsterdam, where he was placed in a linen-draper's shop owned by William Davidson, a Scottish merchant. In 1652 or 1653 he moved back to Delft, where in 1654 he married the daughter of a cloth-merchant, Barbara de Mey. They had five children, only one of whom survived (born 22 September 1656). At about this time he bought a house and shop in the Hippolytus buurt and set up in business as a draper and haberdasher. His wife died in 1666 and in 1671 he married Cornelia Swalmius, a Reformed Church minister's daughter. Lacking self-confidence and not knowing Latin, the scientific language of the day, he was reluctant to publish the results of his investigations into a multitude of natural objects. His observations were made with single-lens microscopes made by himself. (He made at least 387 microscopes with magnifications of between 30x and 266x.) Among the subjects he studied were the optic nerve of a cow, textile fibres, plant seeds, a spark from a tinderbox, the anatomy of mites and insects' blood corpuscles, semen and spermatozoa. It was the physician Reinier de Graaf who put him in touch with the Royal Society in London, with whom he corresponded for fifty years from 1673. One of his last letters, in 1723, to the Royal Society was about the histology of the rare disease of the diaphragm that he had studied in sheep and oxen and from which he died. In public service he was a chamberlain to the sheriffs of Delft, a surveyor and a wine-gauger, offices which together gave him an income of about 800 florins a year. Leeuwenhoek never wrote a book, but collections were published in Latin and in Dutch from his scientific letters, which numbered more than 250.[br]Principal Honours and DistinctionsFRS 1680.Further ReadingL.C.Palm and H.A.M.Snelders, Antoni van Leeuwenhoek 1632–1723: Studies in the Life and Work of the Delft Scientist, Commemorating the 350th Anniversary of his Birthday.B.Bracegirdle (ed.), Beads of Glass: Leeuwenhoek and the Early Microscope. (Catalogue of an exhibition in the Museum Boerhaave, November 1982 to May 1983, and in the Science Museum, May to October 1983).IMcNBiographical history of technology > Leeuwenhoek, Antoni van
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49 Reynolds, Edwin
[br]b. 1831 Mansfield, Connecticut, USAd. 1909 Milwaukee, Wisconsin, USA[br]American contributor to the development of the Corliss valve steam engine, including the "Manhattan" layout.[br]Edwin Reynolds grew up at a time when formal engineering education in America was almost unavailable, but through his genius and his experience working under such masters as G.H. Corliss and William Wright, he developed into one of the best mechanical engineers in the country. When he was Plant Superintendent for the Corliss Steam Engine Company, he built the giant Corliss valve steam engine displayed at the 1876 Centennial Exhibition. In July 1877 he left the Corliss Steam Engine Company to join Edward Allis at his Reliance Works, although he was offered a lower salary. In 1861 Allis had moved his business to the Menomonee Valley, where he had the largest foundry in the area. Immediately on his arrival with Allis, Reynolds began desig-ning and building the "Reliance-Corliss" engine, which becamea symbol of simplicity, economy and reliability. By early 1878 the new engine was so successful that the firm had a six-month backlog of orders. In 1888 he built the first triple-expansion waterworks-pumping engine in the United States for the city of Milwaukee, and in the same year he patented a new design of blowing engine for blast furnaces. He followed this in March 1892 with the first steam engine sets coupled directly to electric generators when Allis-Chalmers contracted to build two Corliss cross-compound engines for the Narragansett Light Company of Providence, Rhode Island. In 1893, one of the impressive attractions at the World's Columbian Exposition in Chicago was the 3,000 hp (2,200 kW) quadruple-expansion Reynolds-Corliss engine designed by Reynolds, who continued to make significant improvements and gained worldwide recognition of his outstanding achievements in engine building.Reynolds was asked to go to New York in 1898 for consultation about some high-horsepower engines for the Manhattan transport system. There, 225 railway locomotives were to be replaced by electric trains, which would be supplied from one generating station producing 60,000 hp (45,000 kW). Reynolds sketched out his ideas for 10,000 hp (7,500 kW) engines while on the train. Because space was limited, he suggested a four-cylinder design with two horizontal-high-pressure cylinders and two vertical, low-pressure ones. One cylinder of each type was placed on each side of the flywheel generator, which with cranks at 135° gave an exceptionally smooth-running compact engine known as the "Manhattan". A further nine similar engines that were superheated and generated three-phase current were supplied in 1902 to the New York Interborough Rapid Transit Company. These were the largest reciprocating steam engines built for use on land, and a few smaller ones with a similar layout were installed in British textile mills.[br]Further ReadingConcise Dictionary of American Biography, 1964, New York: C.Scribner's Sons (contains a brief biography).R.L.Hills, 1989, Power from Steam. A History of the Stationary Steam Engine, Cambridge University Press (provides a brief account of the Manhattan engines) Part of the information for this biography is derived from a typescript in the Smithsonian Institution, Washington, DC: T.H.Fehring, "Technological contributions of Milwaukee's Menomonee Valley industries".RLH -
50 Snodgrass, Neil
SUBJECT AREA: Textiles[br]fl. late 1790s Scotland[br]Scottish inventor of the scutcher for opening and cleaning raw cotton.[br]Raw cotton arrived in Britain in tightly packed bales. Before spinning, the fibres had to be opened out, and dirt, seeds and bits of plant had to be removed. This was an unpleasant and fatiguing job usually carried out by women and children. By 1800 it could be done by two machines. The first stage in opening was the "willow" and then the cotton was passed through the "scutcher" to open it further and give it a more effective cleaning. These machines reduced the labour of the operation to about one-twentieth of what it had been. The scutching machine was constructed by Snodgrass and first used at Houston's mill in Johnstone, near Paisley, in 1797. It was derived from the threshing machine invented by Andrew Meikle of Phantassie in 1786. In the scutcher, revolving bars beat the cotton to separate the fibres from the trash. As the dirt fell out, the cotton was blown forward by a fan and was rolled up into a lap at the end of the machine. Scutchers were not introduced to Manchester until 1808 or 1809 and further improvements were soon made to them.[br]Further ReadingR.L.Hills, 1970, Power in the Industrial Revolution, Manchester (covers the development of the scutcher).W.English, 1970, The Textile Industry, London (provides a brief account).RLH -
51 Spence, Peter
SUBJECT AREA: Chemical technology[br]b. 19 February 1806 Brechin, Forfarshire, Scotlandd. 5 July 1883 Manchester, England[br]Scottish industrial chemist.[br]Spence was first apprenticed to a grocer and then joined his uncle's business. When that failed, he found work in a Dundee gasworks. During his spare time he had been studying chemistry, and in 1834 he established a small chemical works in London, which was none too successful. It was after a move to Burgh, near Carlisle, that his prospects brightened, with an improved method for making alum, a substance much used in the dyeing and textile industries. Spence obtained a patent in 1845 for extracting the substance from alum-containing shale by treating the burned shale and iron pyrites with sulphuric acid. He set up a plant at Pendleton, near Manchester, and enlarged the scale of his operation to become the largest manufacturer of alum in the world. The most profitable product was a crude form of alum known as aluminoferric. This came to be much in demand by the paper industry and in the treatment of sewage, an activity of growing importance in mid-Victorian Britain.Not all of Spence's ventures met with success; his attempts to exploit the phosphate deposits on the island of Redmonds in the West Indies lost heavily. He was an active citizen of Manchester, with a strongly Nonconformist tendency. He supported the cause against atmospheric pollution, although he himself was successfully prosecuted for pollution from his alum works at Pendleton; that prompted a move to Miles Platting, also near Manchester. In 1900, his firm became part of Laporte Industries Ltd.[br]Further ReadingJ.Fenwick Allen, 1907, Some Founders of the Chemical Industry, London.Proc. Manchester Lit. Phil. Soc. (1883–4) 23:121.LRD -
52 Wilkinson, David
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering[br]b. 5 January 1771 Smithfield (now Slatersville), Rhode Island, USAd. 3 February 1852 Caledonia Springs, Ontario, Canada[br]American mechanical engineer and inventor of a screw-cutting lathe.[br]David Wilkinson was the third son of Oziel Wilkinson (1744–1815), a blacksmith who c.1783 established at Pawtucket, Rhode Island, a plant for making farm tools and domestic utensils. This enterprise he steadily expanded with the aid of his sons, until by 1800 it was regarded as the leading iron and machinery manufacturing business in New England. At the age of 13, David Wilkinson entered his father's workshops. Their products included iron screws, and the problem of cutting the threads was one that engaged his attention. After working on it for some years he devised a screw-cutting lathe, for which he obtained a patent in 1798. In about 1800 David and his brother Daniel established their own factory at Pawtucket, known as David Wilkinson \& Co., where they specialized in the manufacture of textile machinery. Later they began to make cast cannon and installed a special boring machine for machining them. The firm prospered until 1829, when a financial crisis caused its collapse. David Wilkinson set up a new business in Cohoes, New York, but this was not a success and from 1836 he travelled around finding work chiefly in canal and bridge construction in New Jersey, Ohio and Canada. In 1848 he petitioned Congress for some reward for his invention of the screw-cutting lathe of 1798; he was awarded $10,000.[br]Further ReadingJ.W.Roe, 1916, English and American Tool Builders, New Haven; reprinted 1926, New York, and 1987, Bradley, Ill. (provides a short account of David Wilkinson and his work).R.S.Woodbury, 1961, History of the Lathe to 1850, Cleveland, Ohio (includes a description of Wilkinson's screw-cutting lathe).RTS -
53 natural fibre
волокно природного происхождения
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natural fibre
A textile fiber of mineral, plant or animal origin. (Source: MGH)
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Англо-русский словарь нормативно-технической терминологии > natural fibre
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