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1 British Hydraulic Research Association
Makarov: BHRAУниверсальный русско-английский словарь > British Hydraulic Research Association
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2 Британская ассоциация по гидромеханическим исследованиям
Британская ассоциация по гидромеханическим исследованиям
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[А.С.Гольдберг. Англо-русский энергетический словарь. 2006 г.]Тематики
EN
Русско-английский словарь нормативно-технической терминологии > Британская ассоциация по гидромеханическим исследованиям
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3 Британская ассоциация гидромеханических исследований
1) Engineering: British Hydraulic Research Association2) Makarov: British Hydraulic Research Association( BHRA)Универсальный русско-английский словарь > Британская ассоциация гидромеханических исследований
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4 Guest, James John
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering[br]b. 24 July 1866 Handsworth, Birmingham, Englandd. 11 June 1956 Virginia Water, Surrey, England[br]English mechanical engineer, engineering teacher and researcher.[br]James John Guest was educated at Marlborough in 1880–4 and at Trinity College, Cambridge, graduating as fifth wrangler in 1888. He received practical training in several workshops and spent two years in postgraduate work at the Engineering Department of Cambridge University. After working as a draughtsman in the machine-tool, hydraulic and crane departments of Tangyes Ltd at Birmingham, he was appointed in 1896 Assistant Professor of Engineering at McGill University in Canada. After a short time he moved to the Polytechnic Institute at Worcester, Massachusetts, where he was for three years Professor of Mechanical Engineering and Head of the Engineering Department. In 1899 he returned to Britain and set up as a consulting engineer in Birmingham, being a partner in James J.Guest \& Co. For the next fifteen years he combined this work with research on grinding phenomena. He also developed a theory of grinding which he first published in a paper at the British Association for the Advancement of Science in 1914 and elaborated in a paper to the Institution of Mechanical Engineers and in his book Grinding Machinery (1915). During the First World War, in 1916–17, he was in charge of inspection in the Staffordshire and Shropshire Area, Ministry of Munitions. In 1917 he returned to teaching as Reader in Graphics and Structural Engineering at University College London. His final appointment was about 1923 as Professor of Mechanical and Electrical Engineering, Artillery College, Woolwich, which later became the Military College of Science.He carried out research on the strength of materials and contributed many articles on the subject to the technical press. He originated Guest's Law for a criterion of failure of materials under combined stresses, first published in 1900. He was a Member of the Institution of Mechanical Engineers in 1900–6 and from 1919 and contributed to their proceedings in many discussions and two major papers.[br]BibliographyOf many publications by Guest, the most important are: 1900, "Ductile materials under combined stress", Proceedings of the Physical Society 17:202.1915, Grinding Machinery, London.1915, "Theory of grinding, with reference to the selection of speeds in plain and internal work", Proceedings of the Institution of Mechanical Engineers 89:543.1917. "Torsional hysteresis of mild steel", Proceedings of the Royal Society A93:313.1918. with F.C.Lea, "Curved beams", Proceedings of the Royal Society A95:1. 1930, "Effects of rapidly acting stress", Proceedings of the Institution of MechanicalEngineers 119:1,273.RTS -
5 Herbert, Edward Geisler
[br]b. 23 March 1869 Dedham, near Colchester, Essex, Englandd. 9 February 1938 West Didsbury, Manchester, England[br]English engineer, inventor of the Rapidor saw and the Pendulum Hardness Tester, and pioneer of cutting tool research.[br]Edward Geisler Herbert was educated at Nottingham High School in 1876–87, and at University College, London, in 1887–90, graduating with a BSc in Physics in 1889 and remaining for a further year to take an engineering course. He began his career as a premium apprentice at the Nottingham works of Messrs James Hill \& Co, manufacturers of lace machinery. In 1892 he became a partner with Charles Richardson in the firm of Richardson \& Herbert, electrical engineers in Manchester, and when this partnership was dissolved in 1895 he carried on the business in his own name and began to produce machine tools. He remained as Managing Director of this firm, reconstituted in 1902 as a limited liability company styled Edward G.Herbert Ltd, until his retirement in 1928. He was joined by Charles Fletcher (1868–1930), who as joint Managing Director contributed greatly to the commercial success of the firm, which specialized in the manufacture of small machine tools and testing machinery.Around 1900 Herbert had discovered that hacksaw machines cut very much quicker when only a few teeth are in operation, and in 1902 he patented a machine which utilized this concept by automatically changing the angle of incidence of the blade as cutting proceeded. These saws were commercially successful, but by 1912, when his original patents were approaching expiry, Herbert and Fletcher began to develop improved methods of applying the rapid-saw concept. From this work the well-known Rapidor and Manchester saws emerged soon after the First World War. A file-testing machine invented by Herbert before the war made an autographic record of the life and performance of the file and brought him into close contact with the file and tool steel manufacturers of Sheffield. A tool-steel testing machine, working like a lathe, was introduced when high-speed steel had just come into general use, and Herbert became a prominent member of the Cutting Tools Research Committee of the Institution of Mechanical Engineers in 1919, carrying out many investigations for that body and compiling four of its Reports published between 1927 and 1933. He was the first to conceive the idea of the "tool-work" thermocouple which allowed cutting tool temperatures to be accurately measured. For this advance he was awarded the Thomas Hawksley Gold Medal of the Institution in 1926.His best-known invention was the Pendulum Hardness Tester, introduced in 1923. This used a spherical indentor, which was rolled over, rather than being pushed into, the surface being examined, by a small, heavy, inverted pendulum. The period of oscillation of this pendulum provided a sensitive measurement of the specimen's hardness. Following this work Herbert introduced his "Cloudburst" surface hardening process, in which hardened steel engineering components were bombarded by steel balls moving at random in all directions at very high velocities like gaseous molecules. This treatment superhardened the surface of the components, improved their resistance to abrasion, and revealed any surface defects. After bombardment the hardness of the superficially hardened layers increased slowly and spontaneously by a room-temperature ageing process. After his retirement in 1928 Herbert devoted himself to a detailed study of the influence of intense magnetic fields on the hardening of steels.Herbert was a member of several learned societies, including the Manchester Association of Engineers, the Institute of Metals, the American Society of Mechanical Engineers and the Institution of Mechanical Engineers. He retained a seat on the Board of his company from his retirement until the end of his life.[br]Principal Honours and DistinctionsManchester Association of Engineers Butterworth Gold Medal 1923. Institution of Mechanical Engineers Thomas Hawksley Gold Medal 1926.BibliographyE.G.Herbert obtained several British and American patents and was the author of many papers, which are listed in T.M.Herbert (ed.), 1939, "The inventions of Edward Geisler Herbert: an autobiographical note", Proceedings of the Institution of Mechanical Engineers 141: 59–67.ASD / RTSBiographical history of technology > Herbert, Edward Geisler
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6 Frost, James
[br]b. late 18th century Finchley (?), London, Englandd. mid-19th century probably New York, USA[br]English contributor to investigations into the making of hydraulic cements in the early nineteenth century.[br]As early as 1807 Frost, who was originally a builder and bricklayer in Finchley in north London, was manufacturing Roman Cement, patented by James Parker in 1796, in the Harwich area and a similar cement further south, at Sheerness. In the early 1820s Frost visited Louis J.Vicat (1796–1861) in France. Vicat was a French engineer who began in 1812 a detailed investigation into the properties of various limestones found in France. He later published his conclusions, which were that the best hydraulic lime was that produced from limestone containing clay incorporating silica and alumina. He experimented with adding different clays in varying proportions to slaked lime and calcined the mixture. Benefiting from Vicat's research, Frost obtained a patent in 1822 for what he called British Cement. This patent specified an artificial cement made from limestone and silica, and he calcined chalk with the clay to produce a quick-setting product. This was made at Swanscombe near Northfleet on the south bank of the River Thames. In 1833 the Swanscombe manufactory was purchased by Francis \& White for £3,500 and Frost emigrated to America, setting up practice as a civil engineer in New York. The cement was utilized by Sir Marc Brunel in 1835 in his construction of the Thames Tunnel, and at the same time it was used in building the first all-concrete house at Swanscombe for Mr White.[br]Further ReadingA.J.Francis, 1977, The Cement Industry 1796–1914: A History, David \& Charles. C.C.Stanley, 1979, Highlights in the History of Concrete, Cement and Concrete Association.DY -
7 Reynolds, Osborne
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering[br]b. 23 April 1842 Belfast, Irelandd. 1912 Watchet, Somerset, England[br]English engineer and educator.[br]Osborne Reynolds's father, a clergyman and schoolteacher, had been a Fellow of Queens' College, Cambridge; it was to Queens' that the young Reynolds went to study mathematics, graduating as 7th Wrangler in 1867, and going on in his turn to become a Fellow of the College. Reynolds had developed an interest in practical applications of physics and engineering, and for a short time he entered the office of the London civil engineers Lawson and Mansergh. In 1868 he was appointed to the new Chair of Engineering at Owens College, Manchester, and he remained in this post for thirty-seven years, until he retired in 1905. During this period he presided over a department that grew steadily in size and reputation, and undertook prolonged research projects into phenomena such as lubrication, the laws governing the flow of water in pipes, turbulence and other physical features with practical applications. He was elected a Fellow of the Royal Society in 1877, being nominated Royal Medallist in 1888. In 1883 he became a Member of the Institution of Civil Engineers, and in 1885 he was awarded the Telford Premium of the Institution. He served as Secretary of the Manchester Literary and Philosophical Society from 1874 to 1883, and was appointed President in 1888–9 and Dalton Medallist in 1903. He was President of Section G of the British Association for the History of Science in 1887, and in 1884 he received the degree of LLD from Glasgow University. Among his many students at Owens College was J.J. (later Sir Joseph) Thomson (1856–1940), who entered the college in 1871. Reynolds's collected scientific papers were published in 1900–3.[br]Principal Honours and DistinctionsFRS 1877. Institution of Civil Engineers Telford Premium 1885. President, Manchester Literary and Philosophical Society 1888–9. Manchester Literary and Philosophical Society, Dalton Medal 1903.Further ReadingDictionary of National Biography Supplement.D.M.McDowell and J.D.Jackson (eds), 1970, Osborne Reynolds and Engineering Science Today, Manchester: Manchester University Press.AB
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