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1 Tennant, Charles
[br]b. 3 May 1768 Ochiltree, Ayrshire, Scotlandd. 1 October 1838 Glasgow, Scotland[br]Scottish inventor of bleaching powder.[br]After education at the local school, Tennant went to Kilbachan to learn the manufacture of silk. He then went on to Wellmeadow, where he acquired a knowledge of the old bleaching process, which enabled him to establish his own bleachfield at Darnly. The process consisted of boiling the fabric in weak alkali and then laying it flat on the ground to expose it to sun and air for several months. This process, expensive in time and space, would have formed an intolerable bottleneck in the rapidly expanding textile industry, but a new method was on the way. The French chemist Berthollet demonstrated in 1786 the use of chlorine as a bleaching agent and James Watt learned of this while on a visit to Paris. On his return to Glasgow, Watt passed details of the new process on to Tennant, who set about devising his own version of it. First he obtained a bleaching liquor by passing chlorine through a stirred mixture of lime and water. He was granted a patent for this process in 1798, but it was promptly infringed by bleachers in Lancashire. Tennant's efforts to enforce the patent were unsuccessful as it was alleged that others had employed a similar process some years previously. Nevertheless, the Lancashire bleachers had the good grace to present Tennant with a service of plate in recognition of the benefits he had brought to the industry.In 1799 Tennant improved on his process by substituting dry slaked lime for the liquid, to form bleaching powder. This was patented the same year and proved to be a vital element in the advance of the textile industry. The following year, Tennant established his chemical plant at St Roll ox, outside Glasgow, to manufacture bleaching powder and alkali substances. The plant prospered and became for a time the largest chemical works in Europe.[br]Further ReadingL.F.Haber, 1958, The Chemical Industry During the Nineteenth Century, London: Oxford University Press.F.S.Taylor, 1957, A History of Industrial Chemistry, London: Heinemann.Walker, 1862, Memoirs of Distinguished Men of Science of Great Britain Living in 1807– 1808, London, p. 186.LRD -
2 Tennant Corporation
NASDAQ: TANTУниверсальный русско-английский словарь > Tennant Corporation
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3 Tennant Creek, Northern Territory, Australia
Airports: TCAУниверсальный русско-английский словарь > Tennant Creek, Northern Territory, Australia
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4 MacArthur, John Stewart
[br]b. December 1856 Hutchesontown, Glasgow, Scotlandd. 16 March 1920 Pollokshields, Glasgow, Scotland[br]Scottish industrial chemist who introduced the "cyanide process" for the commercial extraction of gold from its ores.[br]MacArthur served his apprenticeship in the laboratory of Tennant's Tharsis Sulphur and Copper Company in Glasgow. In 1886 he was appointed Technical Manager of the Tennant-run Cassel Gold Extracting Company. By 1888 he was advocating a treatment scheme in which gold was dissolved from crushed rock by a dilute solution of alkali cyanide and then precipitated onto finely divided zinc. During the next few years, with several assistants, he was extremely active in promoting the new gold-extraction technique in various parts of the world. In 1894 significant sums in royalty payments were received, but by 1897 the patents had been successfully contested; henceforth the Cassel Company concentrated on the production and marketing of the essential sodium cyanide reagent.MacArthur was Managing Director of the Cassel Company from 1892 to 1897; he resigned as a director in December 1905. In 1907 he created the Antimony Recovery Syndicate, and in 1911 he set up a small plant at Runcorn, Cheshire, to produce radium salts. In 1915 this radium-extraction activity was transferred to Balloch, south of Loch Lomond, where it was used until some years after his death.[br]Principal Honours and DistinctionsInstitution of Mining and Metallurgy Gold Medal 1902.Bibliography10 August 1888, jointly with R.W.Forrest and W.Forrest, British patent no. 14,174. 13 July 1889, jointly with R.W.Forrest and W. Forrest, British patent no. 10,223. 1905, "Gold extraction by cyanide: a retrospect", Journal of the Society of ChemicalIndustry (15 April):311–15.Further ReadingD.I.Harvie, 1989, "John Stewart MacArthur: pioneer gold and radium refiner", Endeavour (NS) 13(4):179–84 (draws on family documents not previously published).JKABiographical history of technology > MacArthur, John Stewart
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5 Macintosh, Charles
[br]b. 29 December 1766 Glasgow, Scotlandd. 25 July 1843 Dunchattan, near Glasgow, Scotland[br]Scottish inventor of rubberized waterproof clothing.[br]As the son of the well-known and inventive dyer George Macintosh, Charles had an early interest in chemistry. At the age of 19 he gave up his work as a clerk with a Glasgow merchant to manufacture sal ammoniac (ammonium chloride) and developed new processes in dyeing. In 1797 he started the first Scottish alum works, finding the alum in waste shale from coal mines. His first works was at Hurlet, Renfrewshire, and was followed later by others. He then formed a partnership with Charles Tennant, the proprietor of a chemical works at St Rollox, near Glasgow, and sold "lime bleaching liquor" made with chlorine and milk of lime from their bleach works at Darnley. A year later the use of dry lime to make bleaching powder, a process worked out by Macintosh, was patented. Macintosh remained associated with Tennant's St Rollox chemical works until 1814. During this time, in 1809, he had set up a yeast factory, but it failed because of opposition from the London brewers.There was a steady demand for the ammonia that gas works produced, but the tar was often looked upon as an inconvenient waste product. Macintosh bought all the ammonia and tar that the Glasgow works produced, using the ammonia in his establishment to produce cudbear, a dyestuff extracted from various lichens. Cudbear could be used with appropriate mordants to make shades from pink to blue. The tar could be distilled to produce naphtha, which was used as a flare. Macintosh also became interested in ironmaking. In 1825 he took out a patent for converting malleable iron into steel by taking it to white heat in a current of gas with a carbon content, such as coal gas. However, the process was not commercially successful because of the difficulty keeping the furnace gas-tight. In 1828 he assisted J.B. Neilson in bringing hot blast into use in blast furnaces; Neilson assigned Macintosh a share in the patent, which was of dubious benefit as it involved him in the tortuous litigation that surrounded the patent until 1843.In June 1823, as a result of experiments into the possible uses of naphtha obtained as a by-product of the distillation of coal tar, Macintosh patented his process for waterproofing fabric. This comprised dissolving rubber in naphtha and applying the solution to two pieces of cloth which were afterwards pressed together to form an impermeable compound fabric. After an experimental period in Glasgow, Macintosh commenced manufacture in Manchester, where he formed a partnership with H.H.Birley, B.Kirk and R.W.Barton. Birley was a cotton spinner and weaver and was looking for ways to extend the output of his cloth. He was amongst the first to light his mills with gas, so he shared a common interest with Macintosh.New buildings were erected for the production of waterproof cloth in 1824–5, but there were considerable teething troubles with the process, particularly in the spreading of the rubber solution onto the cloth. Peter Ewart helped to install the machinery, including a steam engine supplied by Boulton \& Watt, and the naphtha was supplied from Macintosh's works in Glasgow. It seems that the process was still giving difficulties when Thomas Hancock, the foremost rubber technologist of that time, became involved in 1830 and was made a partner in 1834. By 1836 the waterproof coat was being called a "mackintosh" [sic] and was gaining such popularity that the Manchester business was expanded with additional premises. Macintosh's business was gradually enlarged to include many other kinds of indiarubber products, such as rubber shoes and cushions.[br]Principal Honours and DistinctionsFRS 1823.Further ReadingG.Macintosh, 1847, Memoir of Charles Macintosh, London (the fullest account of Charles Macintosh's life).T.Hancock, 1957, Narrative of the Indiarubber Manufacture, London.H.Schurer, 1953, "The macintosh: the paternity of an invention", Transactions of the Newcomen Society 28:77–87 (an account of the invention of the mackintosh).RLH / LRD -
6 Пинцет для завязывания нитей по Теннанту, изогнутый по радиусу
Surgery: Tennant Tying Forceps curvedУниверсальный русско-английский словарь > Пинцет для завязывания нитей по Теннанту, изогнутый по радиусу
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7 Пинцет для завязывания нитей по Теннанту, изогнутый под углом
Surgery: Tennant Tying Forceps angledУниверсальный русско-английский словарь > Пинцет для завязывания нитей по Теннанту, изогнутый под углом
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8 Chemical technology
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9 Kennedy, Sir Alexander Blackie William
SUBJECT AREA: Ports and shipping[br]b. 17 March 1847 Stepney, London, England d. 1928[br]English marine engineer and educator.[br]Sir Alexander Kennedy was trained as a marine engineer. The son of a Congregational minister, he was educated at the City of London School and the School of Mines, Jermyn Street. He was then apprenticed to J. \& W.Dudgeon of Millwall, marine engineers, and went on to become a draughtsman to Sir Charles Marsh Palmer of Jarrow (with whom he took part in the development of the compound steam-engine for marine use) and T.M.Tennant \& Co. of Leith. In 1874 he was appointed Professor of Engineering at University College, London. He built up an influential School of Engineering, being the first in England to integrate laboratory work as a regular feature of instruction. The engineering laboratory that he established in 1878 has been described as "the first of its kind in England" (Proceedings of the Institution of Civil Engineers). He and his students conducted important experiments on the strength and elasticity of materials, boiler testing and related subjects. He followed the teaching of Franz Reuleaux, whose Kinematics of Machinery he translated from the German.While thus breaking new educational ground at University College, Kennedy concurrently established a very thriving private practice as a consulting engineer in partnership with Bernard Maxwell Jenkin (the son of Fleeming Jenkin), to pursue which he relinquished his academic posts in 1889. He planned and installed the whole electricity system for the Westminster Electric Supply Corporation, and other electricity companies. He was also heavily involved in the development of electrically powered transport systems. During the First World War he served on a panel of the Munitions Invention Department, and after the war he undertook to record photographically the scenes of desolation in his book From Ypres to Verdun (1921). Towards the end of his life, he pursued his interest in archaeology with the exploration of Petra, recorded in a monograph: Petra. Its History and Monuments (1925). He also joined the Institution of Mechanical Engineers in 1879, becoming the President of that body in 1894, and he joined the Institution of Electrical Engineers in 1890. Kennedy was thus something of an engineering polymath, as well as being an outstanding engineering educationalist.[br]Principal Honours and DistinctionsFRS 1887. Knighted 1905. Member, Institution of Civil Engineers 1879; President, 1906. President, Institution of Mechanical Engineers 1894.Bibliography1921, From Ypresto Verdum.1925, Petra. Its History and Monuments.Further ReadingDNB supplement.1928–9, Proceedings of the Institution of Civil Engineers 221:269–75.ABBiographical history of technology > Kennedy, Sir Alexander Blackie William
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10 Riley, James
SUBJECT AREA: Metallurgy[br]b. 1840 Halifax, Englandd. 15 July 1910 Harrogate, England[br]English steelmaker who promoted the manufacture of low-carbon bulk steel by the open-hearth process for tin plate and shipbuilding; pioneer of nickel steels.[br]After working as a millwright in Halifax, Riley found employment at the Ormesby Ironworks in Middlesbrough until, in 1869, he became manager of the Askam Ironworks in Cumberland. Three years later, in 1872, he was appointed Blast-furnace Manager at the pioneering Siemens Steel Company's works at Landore, near Swansea in South Wales. Using Spanish ore, he produced the manganese-rich iron (spiegeleisen) required as an additive to make satisfactory steel. Riley was promoted in 1874 to be General Manager at Landore, and he worked with William Siemens to develop the use of the latter's regenerative furnace for the production of open-hearth steel. He persuaded Welsh makers of tin plate to use sheets rolled from lowcarbon (mild) steel instead of from charcoal iron and, partly by publishing some test results, he was instrumental in influencing the Admiralty to build two naval vessels of mild steel, the Mercury and the Iris.In 1878 Riley moved north on his appointment as General Manager of the Steel Company of Scotland, a firm closely associated with Charles Tennant that was formed in 1872 to make steel by the Siemens process. Already by 1878, fourteen Siemens melting furnaces had been erected, and in that year 42,000 long tons of ingots were produced at the company's Hallside (Newton) Works, situated 8 km (5 miles) south-east of Glasgow. Under Riley's leadership, steelmaking in open-hearth furnaces was initiated at a second plant situated at Blochairn. Plates and sections for all aspects of shipbuilding, including boilers, formed the main products; the company also supplied the greater part of the steel for the Forth (Railway) Bridge. Riley was associated with technical modifications which improved the performance of steelmaking furnaces using Siemens's principles. He built a gasfired cupola for melting pig-iron, and constructed the first British "universal" plate mill using three-high rolls (Lauth mill).At the request of French interests, Riley investigated the properties of steels containing various proportions of nickel; the report that he read before the Iron and Steel Institute in 1889 successfully brought to the notice of potential users the greatly enhanced strength that nickel could impart and its ability to yield alloys possessing substantially lower corrodibility.The Steel Company of Scotland paid dividends in the years to 1890, but then came a lean period. In 1895, at the age of 54, Riley moved once more to another employer, becoming General Manager of the Glasgow Iron and Steel Company, which had just laid out a new steelmaking plant at Wishaw, 25 km (15 miles) south-east of Glasgow, where it already had blast furnaces. Still the technical innovator, in 1900 Riley presented an account of his experiences in introducing molten blast-furnace metal as feed for the open-hearth steel furnaces. In the early 1890s it was largely through Riley's efforts that a West of Scotland Board of Conciliation and Arbitration for the Manufactured Steel Trade came into being; he was its first Chairman and then its President.In 1899 James Riley resigned from his Scottish employment to move back to his native Yorkshire, where he became his own master by acquiring the small Richmond Ironworks situated at Stockton-on-Tees. Although Riley's 1900 account to the Iron and Steel Institute was the last of the many of which he was author, he continued to contribute to the discussion of papers written by others.[br]Principal Honours and DistinctionsPresident, West of Scotland Iron and Steel Institute 1893–5. Vice-President, Iron and Steel Institute, 1893–1910. Iron and Steel Institute (London) Bessemer Gold Medal 1887.Bibliography1876, "On steel for shipbuilding as supplied to the Royal Navy", Transactions of the Institute of Naval Architects 17:135–55.1884, "On recent improvements in the method of manufacture of open-hearth steel", Journal of the Iron and Steel Institute 2:43–52 plus plates 27–31.1887, "Some investigations as to the effects of different methods of treatment of mild steel in the manufacture of plates", Journal of the Iron and Steel Institute 1:121–30 (plus sheets II and III and plates XI and XII).27 February 1888, "Improvements in basichearth steel making furnaces", British patent no. 2,896.27 February 1888, "Improvements in regenerative furnaces for steel-making and analogous operations", British patent no. 2,899.1889, "Alloys of nickel and steel", Journal of the Iron and Steel Institute 1:45–55.Further ReadingA.Slaven, 1986, "James Riley", in Dictionary of Scottish Business Biography 1860–1960, Volume 1: The Staple Industries (ed. A.Slaven and S. Checkland), Aberdeen: Aberdeen University Press, 136–8."Men you know", The Bailie (Glasgow) 23 January 1884, series no. 588 (a brief biography, with portrait).J.C.Carr and W.Taplin, 1962, History of the British Steel Industry, Harvard University Press (contains an excellent summary of salient events).JKA -
11 Textiles
See also: INDEX BY SUBJECT AREA[br]Dore, Samuel GriswoldHeilmann, JosuéLevers, JohnLister, Samuel CunliffeMa JunSong Yingxing -
12 Wollaston, William Hyde
SUBJECT AREA: Metallurgy[br]b. 6 August 1766 East Dereham, Norfolk, Englandd. 22 December 1828 London, England[br]English chemist and metallurgist who discovered palladium and rhodium, pioneer in the fabrication of platinum.[br]Wollaston qualified in medicine at Cambridge University but gave up his practice in 1800 to devote himself to chemistry and metallurgy, funded from the profits from making malleable platinum. In partnership with Smithson Tennant, a friend from his Cambridge days, he worked on the extraction of platinum by dissolving it in aqua regia. In 1802 he found that in addition to platinum the solution contained a new metal, which he named palladium. Two years later he identified another new metal, rhodium.Wollaston developed a method of forming platinum by means of powder metallurgy and was the first to produce malleable and ductile platinum on a commercial scale. He produced platinum vessels for sulphuric acid manufacture and scientific apparatus such as crucibles. He devised an elegant method for forming fine platinum wire. He also applied his inventive talents to improving scientific apparatus, including the sextant and microscope and a reflecting goniometer for measuring crystal angles. In 1807 he was appointed Joint Secretary of the Royal Society with Sir Humphry Davy, which entailed a heavy workload and required them to referee all the papers submitted to the Society for publication.Wollaston's output of platinum began to decline after 1822. Due to ill health he ceased business operations in 1828 and at last made public the details of his secret platinum fabrication process. It was fully described in the Bakerian Lecture he delivered to the Royal Society on 28 November 1828, shortly before his death.[br]Principal Honours and DistinctionsFRS 1793.BibliographyHis scientific papers were published in various journals, nearly all listed in the Royal Society Catalogue of Scientific Papers.Further ReadingThere is no good general biography, the best general account being the entry inDictionary of Scientific Biography.D.McDonald, 1960, A History of Platinum from the Earliest Times to the Eighteen- Eighties, London (provides a good discussion of his work on platinum).M.E.Weeks, 1939, "The discovery of the elements", Journal of Chemical Education: 184–5.ASDBiographical history of technology > Wollaston, William Hyde
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13 Young, James
SUBJECT AREA: Chemical technology[br]b. 13 July 1811 Glasgow, Scotlandd. 13 May 1883 Wemyss Bay, Scotland[br]Scottish chemist and pioneer petroleum technologist.[br]Young's early education took place in the evenings, after the day's work in his father's joinery. From 1830 he studied chemistry at the evening classes in Glasgow given by the distinguished Scottish chemist Thomas Graham (1805–69) and soon afterwards became Graham's assistant. When Graham moved to University College London in 1837, Young accompanied him.From 1839 he was employed in the chemical industry, first with James Muspratt at St Helens, Lancashire, and from 1843 with Tennant \& Company in Manchester. In 1848 his attention was drawn to an oil seepage in a mine at Alfreton, Derbyshire, of some 300 gallons per day; he set up his own works there to extract an oil that could be used for lighting and lubrication. When this source of oil was exhausted, three years later, Young moved to Lothian in Scotland. By distillation, he extracted oil from the oil-shale deposits there and thus founded the Scottish oil-shale industry: he obtained a high yield of paraffin oil for lighting and heating, and was a pioneer in the use of chemical methods in extracting and treating oil. In 1866 he disposed of his company for no less than £400,000. Young's other activities included measuring the speed of light by Fizeau's method and giving financial support to the expeditions of David Livingstone, who had been a fellow student in Glasgow.[br]Principal Honours and DistinctionsFRS 1873.Further ReadingObituary, 1884, Journal of the Chemical Society 45:630.LRD
См. также в других словарях:
Tennant — ist der Familienname folgender Personen: Andy Tennant (* 1955), US amerikanischer Regisseur Charles Tennant (1768–1838), schottischer Chemiker und Industrieller David Tennant (* 1971), schottischer Schauspieler Neil Tennant (* 1954), britischer… … Deutsch Wikipedia
Tennant — may refer to: * Tennant, California, a US census designated place * Tennant, Iowa, a US town * Tennant Creek, Northern Territory, a town in Australia * Tennant (surname), people with the surname Tennant ee also* Tennent … Wikipedia
Tennant — Tennant, CA U.S. Census Designated Place in California Population (2000): 63 Housing Units (2000): 96 Land area (2000): 0.217468 sq. miles (0.563240 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.217468 sq.… … StarDict's U.S. Gazetteer Places
Tennant, CA — U.S. Census Designated Place in California Population (2000): 63 Housing Units (2000): 96 Land area (2000): 0.217468 sq. miles (0.563240 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.217468 sq. miles… … StarDict's U.S. Gazetteer Places
Tennant, IA — U.S. city in Iowa Population (2000): 73 Housing Units (2000): 32 Land area (2000): 0.713515 sq. miles (1.847996 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.713515 sq. miles (1.847996 sq. km) FIPS code:… … StarDict's U.S. Gazetteer Places
Tennant — [ tenənt], 1) Emma Christina, englische Schriftstellerin, * London 20. 10. 1937; Vertreterin des experimentellen Romans, schreibt in der Nachfolge des Nouveau Roman und der amerikanischen Postmodernisten, häufig über die Zukunft (»The time… … Universal-Lexikon
Tennant — (spr. Tennännt), 1) Smithson, geb. 1761 in Yorkshire, studirte Medicin in Edinburg u. später in Cambridge; hier wurde er 1785 Mitglied der königlichen Gesellschaft u. 1813 Professor der Chemie; er st. 1815 in Boulogne, als er eben auf der… … Pierer's Universal-Lexikon
Tennant — (–änt), William, geb. 1785 zu Anstruther in der schott. Grafschaft Fife, Professor der morgenländ. Literatur zu St. Andrews, gest. 1848, engl. Dichter, in England besonders durch das komische Epos: »der Anstruther Markt« bekannt … Herders Conversations-Lexikon
Tennant — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Tennant est un nom d origine écossaise qui fait référence à : Patronyme Andrew Tennant (1987), coureur cycliste britannique Andy Tennant (1955),… … Wikipédia en Français
Tennant — Recorded as Tenant, Tenaunt and Tennant, this is an English status surname. It originally described a husbandman, the later description being a farmer, or one who held lands from an overlord. The derivation is from the pre 10th century Olde… … Surnames reference
Tennant — /ˈtɛnənt/ (say tenuhnt) noun Kylie /ˈkaɪli/ (say kuylee) (born Kathleen Tennant), 1912–88, Australian novelist and biographer; author of The Battlers (1941) and Ride on Stranger (1943). Kylie Tennant was born in Sydney. Her first novel was… …
