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81 Baumann, Karl
SUBJECT AREA: Steam and internal combustion engines[br]b. 18 April 1884 Switzerlandd. 14 July 1971 Ilkley, Yorkshire[br]Swiss/British mechanical engineer, designer and developer of steam and gas turbine plant.[br]After leaving school in 1902, he went to the Ecole Polytechnique, Zurich, leaving in 1906 with an engineering diploma. He then spent a year with Professor A.Stodola, working on steam engines, turbines and internal combustion engines. He also conducted research in the strength of materials. After this, he spent two years as Research and Design Engineer at the Nuremberg works of Maschinenfabrik Augsburg-Nürnberg. He came to England in 1909 to join the British Westinghouse Co. Ltd in Manchester, and by 1912 was Chief Engineer of the Engine Department of that firm. The firm later became the Metropolitan-Vickers Electrical Co. Ltd (MV), and Baumann rose from Chief Mechanical Engineer through to, by 1929, Special Director and Member of the Executive Management Board; he remained a director until his retirement in 1949.For much of his career, Baumann was in the forefront of power station steam-cycle development, pioneering increased turbine entry pressures and temperatures, in 1916 introducing multi-stage regenerative feed-water heating and the Baumann turbine multi-exhaust. His 105 MW set for Battersea "A" station (1933) was for many years the largest single-axis unit in Europe. From 1938 on, he and his team were responsible for the first axial-flow aircraft propulsion gas turbines to fly in England, and jet engines in the 1990s owe much to the "Beryl" and "Sapphire" engines produced by MV. In particular, the design of the compressor for the Sapphire engine later became the basis for Rolls-Royce units, after an exchange of information between that company and Armstrong-Siddeley, who had previously taken over the aircraft engine work of MV.Further, the Beryl engine formed the basis of "Gatric", the first marine gas turbine propulsion engine.Baumann was elected to full membership for the Institution of Mechanical Engineers in 1929 and a year later was awarded the Thomas Hawksley Gold Medal by that body, followed by their James Clayton Prize in 1948: in the same year he became the thirty-fifth Thomas Hawksley lecturer. Many of his ideas and introductions have stood the test of time, being based on his deep and wide understanding of fundamentals.JB -
82 Leonardo da Vinci
[br]b. 15 April 1452 Vinci, near Florence, Italy,d. 2 May 1519 St Cloux, near Amboise, France.[br]Italian scientist, engineer, inventor and artist.[br]Leonardo was the illegitimate son of a Florentine lawyer. His first sixteen years were spent with the lawyer's family in the rural surroundings of Vinci, which aroused in him a lifelong love of nature and an insatiable curiosity in it. He received little formal education but extended his knowledge through private reading. That gave him only a smattering of Latin, a deficiency that was to be a hindrance throughout his active life. At sixteen he was apprenticed in the studio of Andrea del Verrochio in Florence, where he received a training not only in art but in a wide variety of crafts and technical arts.In 1482 Leonardo went to Milan, where he sought and obtained employment with Ludovico Sforza, later Duke of Milan, partly to sculpt a massive equestrian statue of Ludovico but the work never progressed beyond the full-scale model stage. He did, however, complete the painting which became known as the Virgin of the Rocks and in 1497 his greatest artistic achievement, The Last Supper, commissioned jointly by Ludovico and the friars of Santa Maria della Grazie and painted on the wall of the monastery's refectory. Leonardo was responsible for the court pageants and also devised a system of irrigation to supply water to the plains of Lombardy. In 1499 the French army entered Milan and deposed Leonardo's employer. Leonardo departed and, after a brief visit to Mantua, returned to Florence, where for a time he was employed as architect and engineer to Cesare Borgia, Duke of Romagna. Around 1504 he completed another celebrated work, the Mona Lisa.In 1506 Leonardo began his second sojourn in Milan, this time in the service of King Louis XII of France, who appointed him "painter and engineer". In 1513 Leonardo left for Rome in the company of his pupil Francesco Melzi, but his time there was unproductive and he found himself out of touch with the younger artists active there, Michelangelo above all. In 1516 he accepted with relief an invitation from King François I of France to reside at the small château of St Cloux in the royal domain of Amboise. With the pension granted by François, Leonardo lived out his remaining years in tranquility at St Cloux.Leonardo's career can hardly be regarded as a success or worthy of such a towering genius. For centuries he was known only for the handful of artistic works that he managed to complete and have survived more or less intact. His main activity remained hidden until the nineteenth and twentieth centuries, during which the contents of his notebooks were gradually revealed. It became evident that Leonardo was one of the greatest scientific investigators and inventors in the history of civilization. Throughout his working life he extended a searching curiosity over an extraordinarily wide range of subjects. The notes show careful investigation of questions of mechanical and civil engineering, such as power transmission by means of pulleys and also a form of chain belting. The notebooks record many devices, such as machines for grinding and polishing lenses, a lathe operated by treadle-crank, a rolling mill with conical rollers and a spinning machine with pinion and yard divider. Leonardo made an exhaustive study of the flight of birds, with a view to designing a flying machine, which obsessed him for many years.Leonardo recorded his observations and conclusions, together with many ingenious inventions, on thousands of pages of manuscript notes, sketches and drawings. There are occasional indications that he had in mind the publication of portions of the notes in a coherent form, but he never diverted his energy into putting them in order; instead, he went on making notes. As a result, Leonardo's impact on the development of science and technology was virtually nil. Even if his notebooks had been copied and circulated, there were daunting impediments to their understanding. Leonardo was left-handed and wrote in mirror-writing: that is, in reverse from right to left. He also used his own abbreviations and no punctuation.At his death Leonardo bequeathed his entire output of notes to his friend and companion Francesco Melzi, who kept them safe until his own death in 1570. Melzi left the collection in turn to his son Orazio, whose lack of interest in the arts and sciences resulted in a sad period of dispersal which endangered their survival, but in 1636 the bulk of them, in thirteen volumes, were assembled and donated to the Ambrosian Library in Milan. These include a large volume of notes and drawings compiled from the various portions of the notebooks and is now known as the Codex Atlanticus. There they stayed, forgotten and ignored, until 1796, when Napoleon's marauding army overran Italy and art and literary works, including the thirteen volumes of Leonardo's notebooks, were pillaged and taken to Paris. After the war in 1815, the French government agreed to return them but only the Codex Atlanticus found its way back to Milan; the rest remained in Paris. The appendix to one notebook, dealing with the flight of birds, was later regarded as of sufficient importance to stand on its own. Four small collections reached Britain at various times during the seventeenth and eighteenth centuries; of these, the volume in the Royal Collection at Windsor Castle is notable for its magnificent series of anatomical drawings. Other collections include the Codex Leicester and Codex Arundel in the British Museum in London, and the Madrid Codices in Spain.Towards the end of the nineteenth century, Leonardo's true stature as scientist, engineer and inventor began to emerge, particularly with the publication of transcriptions and translations of his notebooks. The volumes in Paris appeared in 1881–97 and the Codex Atlanticus was published in Milan between 1894 and 1904.[br]Principal Honours and Distinctions"Premier peintre, architecte et mécanicien du Roi" to King François I of France, 1516.Further ReadingE.MacCurdy, 1939, The Notebooks of Leonardo da Vinci, 2 vols, London; 2nd edn, 1956, London (the most extensive selection of the notes, with an English translation).G.Vasari (trans. G.Bull), 1965, Lives of the Artists, London: Penguin, pp. 255–271.C.Gibbs-Smith, 1978, The Inventions of Leonardo da Vinci, Oxford: Phaidon. L.H.Heydenreich, Dibner and L. Reti, 1981, Leonardo the Inventor, London: Hutchinson.I.B.Hart, 1961, The World of Leonardo da Vinci, London: Macdonald.LRD / IMcN -
83 Torricelli, Evangelista
SUBJECT AREA: Photography, film and optics[br]b. 15 October 1608 Faenza, Italyd. 25 October 1647 Florence, Italy[br]Italian physicist, inventor of the mercury barometer and discoverer of atmospheric pressure.[br]Torricelli was the eldest child of a textile artisan. Between 1625 and 1626 he attended the Jesuit school at Faenza, where he showed such outstanding aptitude in mathematics and philosophy that his uncle was persuaded to send him to Rome to a school run by Benedetto Castelli, a mathematician and engineer and a former pupil of Galileo Galilei. Between 1630 and 1641, Torricelli was possibly Secretary to Giovanni Ciampoli, Galileo's friend and protector. In 1641 Torricelli wrote a treatise, De motugravium, amplifying Galileo's doctrine on the motion of projectiles, and Galileo accepted him as a pupil. On Galileo's death in 1642, he was appointed as mathematician and philosopher to the court of Grand Duke Ferdinando II of Tuscany. He remained in Florence until his early death in 1647, possibly from typhoid fever. He wrote a great number of mathematical papers on conic sections, the cycloid, the logarithmic curve and other subjects, which made him well known.By 1642 Torricelli was producing good lenses for telescopes; he subsequently improved them, and attained near optical perfection. He also constructed a simple microscope with a small glass sphere as a lens. Galileo had looked at problems of raising water with suction pumps, and also with a siphon in 1630. Torricelli brought up the subject again in 1640 and later produced his most important invention, the barometer. He used mercury to fill a glass tube that was sealed at one end and inverted it. He found that the height of mercury in the tube adjusted itself to a well-defined level of about 76 cm (30 in.), higher than the free surface outside. He realized that this must be due to the pressure of the air on the outside surface and predicted that it would fall with increasing altitude. He thus demonstrated the pressure of the atmosphere and the existence of a vacuum on top of the mercury, publishing his findings in 1644. He later noticed that changes in the height of the mercury were related to changes in the weather.[br]Bibliography1641, De motu gravium.Further ReadingT.I.Williams (ed.), 1969, A Biographical Dictionary of Scientists, London: A. \& C.Black.Chambers Concise Dictionary of Scientists, 1989, Cambridge.A Dictionary of Scientific Biography, 1976, Vol. XIII, New York: C.Scribner's Sons.A.Stowers, 1961–2, "Thomas Newcomen's first steam engine 250 years ago and the initial development of steam power", Transactions of the Newcomen Society 34 (provides an account of his mercury barometer).W.E.Knowles Middleton, 1964, The History of the Barometer, Baltimore.RLHBiographical history of technology > Torricelli, Evangelista
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84 operation
операция; кампания; боевые [военные] действия; бой; сражение; эксплуатация; обслуживание; работа; pl. оперативное управление [отдел, отделение]; см. тж. action, battle, combatcounter C3 operation — операция [действия] против систем руководства, управления и связи [оперативного управления и связи]
counternaval forces naval operation (in closed or open offshore areas) — морская операция по разгрому ВМС противника (в закрытых или прилегающих к побережью открытых морских районах)
— breaching operation— exploitation-type operation— guarding security operations— missile operations— tactical operations— urban ized operations* * * -
85 Butler, Edward
[br]b. 1863d. 1940[br]English motoring pioneer, designer of a motor tricycle.[br]In 1884 Butler patented a design for a motor tricycle that was shown that year at the Stanley Cycle Show and in the following year at the Inventions Exhibition. In 1887 he patented his "Petrol-tricycle", which was built the following year. The cycle was steered through its two front wheels, while it was driven through its single rear wheel. The motor, which was directly connected to the rear wheel hub by means of overhung cranks, consisted of a pair of water-cooled 2 1/4 in. (57 mm) bore cylinders with an 8 in. (203 mm) stroke working on the Clerk two-stroke cycle. Ignition was by electric spark produced by a wiper breaking contact with the piston, adopted from Butler's own design of electrostatic ignition machine; this was later replaced by a Ruhmkorff coil and a battery. There was insufficient power with direct drive and the low engine speed of c.100 rpm, producing a road speed of approximately 12 mph (19 km/h), so Butler redesigned the engine with a 6 3/4 in. (171 mm) stroke and a four-stroke cycle with an epicyclic reduction gear drive of 4:1 and later 6:1 ratio which could run at 600 rpm. The combination of restrictive speed-limit laws and shortsightedness of his backers prevented development, despite successful road demonstrations. Interest was non-existent by 1895, and the following year this first English internal combustion engined motorcycle was broken up for the scrap value of some 163 lb (74 kg) of copper and brass contained in its structure.[br]Further ReadingC.F.Caunter, 1982, Motor Cycles, 3rd edn, London: HMSO/Science Museum.IMcN -
86 Morrison, William Murray
[br]b. 7 October 1873 Birchwood, Inverness-shire, Scotlandd. 21 May 1948 London, England[br]Scottish pioneer in the development of the British aluminium industry and Highlands hydroelectric energy.[br]After studying at the West of Scotland Technical College in Glasgow, in January 1895 Morrison was appointed Engineer to the newly formed British Aluminium Company Limited (BAC); it was with this organization that he spent his entire career. The company secured the patent rights to the Héroult and Bayer processes. It constructed a 200 tonne per year electrolytic plant at Foyers on the shore of Loch Ness, together with an adjacent 5000 kW hydroelectric scheme, and it built an alumina factory at Larne Harbour in north-eastern Ireland. Morrison was soon Manager at Foyers, and he became the company's Joint Technical Adviser. In 1910 he was made General Manager, and later he was appointed Managing Director. Morrison successfully brought about improvements in all parts of the production process; between 1915 and 1930 he increased the size of individual electrolytic cells by a factor of five, from 8,000 to 40,000 amperes. Soon after 1901, BAC built a second works for electrolytic reduction, at Kinlochleven in Argyllshire, where the primary design originated from Morrison. In the 1920s a third plant was erected at Fort William, in the lee of Ben Nevis, with hydroelectric generators providing some 75 MW. Alumina factories were constructed at Burntisland on the Firth of Forth and, in the 1930s, at Newport in Monmouthshire. Rolling mills were developed at Milton in Staffordshire, Warrington, and Falkirk in Stirlingshire, this last coming into use in the 1940s, by which time the company had a primary-metal output of more than 30,000 tonnes a year. Morrison was closely involved in all of these developments. He retired in 1946 as Deputy Chairman of BAC.[br]Principal Honours and DistinctionsCommander of the Order of St Olav of Norway 1933 (BAC had manufacturing interests in Norway). Knighted 1943. Vice-Chairman, British Non-Ferrous Metals Research Association, Faraday Society, Institute of Metals. Institute of Metals Platinum Medal 1942.Bibliography1939, "Aluminium and highland water power", Journal of the Institute of Metals 65:17– 36 (seventeenth autumn lecture),See also: Hall, Charles MartinJKABiographical history of technology > Morrison, William Murray
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87 Bell, Thomas
SUBJECT AREA: Paper and printing[br]fl. 1770–1785 Scotland[br]Scottish inventor of a calico printing machine with the design engraved on rollers.[br]In November 1770, John Mackenzie, owner of a bleaching mill, took his millwright Thomas Bell to Glasgow to consult with James Watt about problems they were having with the calico printing machine invented by Bell some years previously. Bell rolled sheets of copper one eighth of an inch (3 mm) thick into cyliders, and filled them with cement which was held in place by cast iron ends. After being turned true and polished, the cylinders were engraved; they cost about £10 each. The printing machines were driven by a water-wheel, but Bell and Mackenzie appeared to have had problems with the doctor blades which scraped off excess colour, and this may have been why they visited Watt.They had, presumably, solved the technical problems when Bell took out a patent in 1783 which describes him as "the Elder", but there are no further details about the man himself. The machine is described as having six printing rollers arranged around the top of the circumference of a large central bowl. In later machines, the printing rollers were placed all round a smaller cylinder. All of the printing rollers, each printing a different colour, were driven by gearing to keep them in register. The patent includes steel doctor blades which would have scraped excess colour off the printing rollers. Another patent, taken out in 1784, shows a smaller three-colour machine. The printing rollers had an iron core covered with copper, which could be taken off at pleasure so that fresh patterns could be cut as desired. Bell's machine was used at Masney, near Preston, England, by Messrs Livesey, Hargreaves, Hall \& Co in 1786. Although copper cylinders were difficult to make and engrave, and the soldered seams often burst, these machines were able to increase the output of the cheaper types of printed cloth.[br]Bibliography1783, patent no. 1,378 (calico printing machine with engraved copper rollers). 1784, patent no. 1,443 (three-colour calico printing machine).Further ReadingW.E.A.Axon, 1886, Annals of Manchester, Manchester (provides an account of the invention).R.L.Hills, 1970, Power in the Industrial Revolution, Manchester (provides a brief description of the development of calico printing).RLH -
88 system
n1) система; комплекс2) система; порядок; классификация3) метод; способ
- accelerated cost recovery system
- accounting system
- actual cost system
- administrative system
- advanced system
- airline system
- appointment system
- assessment system
- automated control system
- automated management system
- automatic conveyor system
- automatic data processing system
- automatic transfer system
- banking system
- batch system
- bidding system
- bilateral clearing system
- bimetallic monetary system
- bonus system
- budgetary control system
- cash system
- centralized control system
- central record system
- chain store system
- checking system
- classification system
- clearing system
- clearing house interbank payment system
- closed system
- closed system of finance
- communication system
- computerised system
- computerised system of payments
- computerised interbank clearing system
- conference system
- constrained system
- constraint system
- container system
- contract system
- contractual vertical marketing system
- control system
- controlled system
- corporate vertical marketing system
- cost accounting system
- cost control system
- cost distribution system
- credit system
- crediting system
- credit scoring system
- credit transfer system
- cropping system
- currency system
- data system
- data acquisition system
- data collection system
- data interchange system
- data processing system
- data transmission system
- decentralized system
- decimal system
- deferred rebate system
- department incentive system
- deposit insurance system
- distribution system
- dual system
- dual-pay system
- dual price system
- dual standard cost system
- dynamic system
- economic system
- educational system
- electronic book-entry system
- electronic fund transfer system
- engineering system
- equilibrium system
- estimate cost system
- European monetary system
- evaluation system
- exchange system
- factory system
- farming system
- farm price system
- Federal Reserve System
- feedback system
- financial system
- fiscal system
- forecasting system
- free enterprise system
- generalized system of preferences
- giro system
- hauling system
- hire purchase system
- historical cost system
- household system
- import quota system
- imprest system
- industrial system
- inefficient tax system
- information system
- information retrieval system
- in-plant system
- inspection system
- integrated accounting system
- integrated record system
- Internet-based system
- inventory control system
- irrigation system
- job order cost system
- judicial system
- justice system
- land tenure system
- land-use system
- legal system
- licence system
- linear system
- lump system
- macroeconomic system
- management system
- management information system
- managerial system
- market system
- marketing system
- master system
- measuring system
- mechanical accounting system
- mercantile system
- metric system
- monetary system
- monitoring system
- multichannel system
- multicomputer system
- multidepot system
- multiitem system
- multilateral system of settlements
- multilevel system
- multiple system
- multiproduct inventory system
- multipurpose system
- multirobot system
- multistage system
- multiuser computer system
- national banking system
- normalized system
- office system
- one-crop system
- one-price system
- open price system
- operating system
- operational system
- order system
- ordering system
- par value system
- patent system
- pay system
- pay-as-you-earn system
- pay-as-you-go system
- payment system
- petty cash system
- piecework system
- planning system
- postal system
- post giro system
- power system
- premium system
- price system
- priority system
- private enterprise system
- process control system
- processing system
- production system
- product testing system
- programme system
- programme development system
- programming system
- protectionist system
- protective system
- public-address system
- quality system
- quality intelligence system
- quality rating system
- queueing system
- quota system
- railroad system
- railway system
- rating system
- rationing system
- real-time system
- recording system
- record keeping system
- reference system
- registration system
- relay system
- remote-control system
- reporting system
- retail trade system
- retrieval system
- risk-management system
- rotation system
- savings bank system
- scoring system
- search system
- selection system
- service system
- settlement system
- sewage system
- shared resource system
- shuttle system
- single system
- single-channel system
- social system
- stable system
- stand-alone system
- standard system
- standard cost system
- standby system
- state system
- static system
- stationary system
- storage system
- storekeeping system
- supply system
- sweating system
- tariff system
- tax system
- taxation system
- telecommunication system
- telephone system
- telephone answering system
- tender system
- tenure system
- testing system
- time-shared system
- timesharing system
- transfer system
- transmission system
- transport system
- transportation system
- trial system
- truck system
- two-shift system
- two-tier banking system
- two-tier gold system
- underwriting system
- uniform system of accounts
- universal time system
- unstable system
- value system
- vertical marketing system
- voucher system
- wage system
- wage labour system
- warehousing system
- waste disposal system
- waste handling system
- waste treatment system
- water system
- weighting system
- working system
- world system
- system of accounts
- system of administration
- system of bookkeeping
- system of classification
- system of control
- system of distribution
- system of information
- system of levies
- system of management
- system of marketing
- system of marking
- system of protective tariffs
- system of sales
- system of settlements
- system of tariffs
- system of taxation
- system of transportation
- system of units
- system of weights and measures
- bypass the banking system
- convert to a metric system
- design a system
- operate a system
- phase out the quota systemEnglish-russian dctionary of contemporary Economics > system
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