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1 site improvements
работы по подготовке участка к промышленному строительствуБольшой англо-русский и русско-английский словарь > site improvements
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2 site improvements
2) Деловая лексика: работы по подготовке участка к продаже -
3 site improvements
Англо-русский словарь по экономике и финансам > site improvements
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4 improvement
1) улучшение, совершенствование2) повышение (цен) -
5 Murray, Matthew
SUBJECT AREA: Land transport, Mechanical, pneumatic and hydraulic engineering, Railways and locomotives, Steam and internal combustion engines[br]b. 1765 near Newcastle upon Tyne, Englandd. 20 February 1826 Holbeck, Leeds, England[br]English mechanical engineer and steam engine, locomotive and machine-tool pioneer.[br]Matthew Murray was apprenticed at the age of 14 to a blacksmith who probably also did millwrighting work. He then worked as a journeyman mechanic at Stockton-on-Tees, where he had experience with machinery for a flax mill at Darlington. Trade in the Stockton area became slack in 1788 and Murray sought work in Leeds, where he was employed by John Marshall, who owned a flax mill at Adel, located about 5 miles (8 km) from Leeds. He soon became Marshall's chief mechanic, and when in 1790 a new mill was built in the Holbeck district of Leeds by Marshall and his partner Benyon, Murray was responsible for the installation of the machinery. At about this time he took out two patents relating to improvements in textile machinery.In 1795 he left Marshall's employment and, in partnership with David Wood (1761– 1820), established a general engineering and millwrighting business at Mill Green, Holbeck. In the following year the firm moved to a larger site at Water Lane, Holbeck, and additional capital was provided by two new partners, James Fenton (1754–1834) and William Lister (1796–1811). Lister was a sleeping partner and the firm was known as Fenton, Murray \& Wood and was organized so that Fenton kept the accounts, Wood was the administrator and took charge of the workshops, while Murray provided the technical expertise. The factory was extended in 1802 by the construction of a fitting shop of circular form, after which the establishment became known as the "Round Foundry".In addition to textile machinery, the firm soon began the manufacture of machine tools and steam-engines. In this field it became a serious rival to Boulton \& Watt, who privately acknowledged Murray's superior craftsmanship, particularly in foundry work, and resorted to some industrial espionage to discover details of his techniques. Murray obtained patents for improvements in steam engines in 1799, 1801 and 1802. These included automatic regulation of draught, a mechanical stoker and his short-D slide valve. The patent of 1801 was successfully opposed by Boulton \& Watt. An important contribution of Murray to the development of the steam engine was the use of a bedplate so that the engine became a compact, self-contained unit instead of separate components built into an en-gine-house.Murray was one of the first, if not the very first, to build machine tools for sale. However, this was not the case with the planing machine, which he is said to have invented to produce flat surfaces for his slide valves. Rather than being patented, this machine was kept secret, although it was apparently in use before 1814.In 1812 Murray was engaged by John Blenkinsop (1783–1831) to build locomotives for his rack railway from Middleton Colliery to Leeds (about 3 1/2 miles or 5.6 km). Murray was responsible for their design and they were fitted with two double-acting cylinders and cranks at right angles, an important step in the development of the steam locomotive. About six of these locomotives were built for the Middleton and other colliery railways and some were in use for over twenty years. Murray also supplied engines for many early steamboats. In addition, he built some hydraulic machinery and in 1814 patented a hydraulic press for baling cloth.Murray's son-in-law, Richard Jackson, later became a partner in the firm, which was then styled Fenton, Murray \& Jackson. The firm went out of business in 1843.[br]Principal Honours and DistinctionsSociety of Arts Gold Medal 1809 (for machine for hackling flax).Further ReadingL.T.C.Rolt, 1962, Great Engineers, London (contains a good short biography).E.Kilburn Scott (ed.), 1928, Matthew Murray, Pioneer Engineer, Leeds (a collection of essays and source material).C.F.Dendy Marshall, 1953, A History of Railway Locomotives Down to the End of theYear 1831, London.L.T.C.Rolt, 1965, Tools for the Job, London; repub. 1986 (provides information on Murray's machine-tool work).Some of Murray's correspondence with Simon Goodrich of the Admiralty has been published in Transactions of the Newcomen Society 3 (1922–3); 6(1925–6); 18(1937– 8); and 32 (1959–60).RTS -
6 Huntsman, Benjamin
SUBJECT AREA: Metallurgy[br]b. 1704 Barton-on-Humber, Lincolnshire, Englandd. 21 June 1776 Sheffield, England[br]English inventor of crucible steelmaking.[br]Of Dutch descent, Hunstman was apprenticed to a clockmaker at Epworth, Lincolnshire. In 1725 he set up in Doncaster as a maker of clocks, locks and roasting jacks. He made improvements in his tools but found himself hampered by the poor quality of the steel available, then made by the cementation process, which yielded a steel with a non-uniform carbon content. Around 1740, Huntsman moved to Handsworth, now part of Sheffield, and began experimenting by heating varying compositions of fuel and flux with crude steel in a crucible, to obtain a steel of uniform composition. During the years 1745 to 1750 he attained his object, but not without many unsuccessful "heats", as excavations of the site of his works now reveal. Although his steel was far better than that previously available, however, the conservative cutlers of Sheffield rejected it, claiming it was too hard to work; therefore Huntsman exported his product to France, where the cutlers promptly worked it into high-quality knives and razors that were exported to England. The Sheffield cutlers' attempts to prevent Huntsman from exporting his steel proved unsuccessful. Huntsman did not patent his process, preferring to retain his advantage by shrouding his work in secrecy, carrying out his melting at night to escape observation, but a rival cutler, Samuel Walker, gained admittance to Huntsman's works disguised as a tramp seeking food. As a result, Walker was able to make crucible steel at a handsome profit. Huntsman fought back and earned success through the sheer quality of his steel, and had to move to.a larger site at Attercliffe in 1770. Crucible steelmaking remained important through the nineteenth century although, as it was a small-scale process, its application was restricted to engineers' cutting tools and the cutting edges of certain tools.[br]Further ReadingE.W.Hulme, 1945, "The pedigree and career of Benjamin Huntsman, inventor in Europe of crucible steel", Transactions of the Newcomen Society 24:37–48.W.K.V.Gale, 1969, Iron and Steel, London: Longman.LRD -
7 Adamson, Daniel
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering, Metallurgy, Steam and internal combustion engines[br]b. 1818 Shildon, Co. Durham, Englandd. January 1890 Didsbury, Manchester, England[br]English mechanical engineer, pioneer in the use of steel for boilers, which enabled higher pressures to be introduced; pioneer in the use of triple-and quadruple-expansion mill engines.[br]Adamson was apprenticed between 1835 and 1841 to Timothy Hackworth, then Locomotive Superintendent on the Stockton \& Darlington Railway. After this he was appointed Draughtsman, then Superintendent Engineer, at that railway's locomotive works until in 1847 he became Manager of Shildon Works. In 1850 he resigned and moved to act as General Manager of Heaton Foundry, Stockport. In the following year he commenced business on his own at Newton Moor Iron Works near Manchester, where he built up his business as an iron-founder and boilermaker. By 1872 this works had become too small and he moved to a 4 acre (1.6 hectare) site at Hyde Junction, Dukinfield. There he employed 600 men making steel boilers, heavy machinery including mill engines fitted with the American Wheelock valve gear, hydraulic plant and general millwrighting. His success was based on his early recognition of the importance of using high-pressure steam and steel instead of wrought iron. In 1852 he patented his type of flanged seam for the firetubes of Lancashire boilers, which prevented these tubes cracking through expansion. In 1862 he patented the fabrication of boilers by drilling rivet holes instead of punching them and also by drilling the holes through two plates held together in their assembly positions. He had started to use steel for some boilers he made for railway locomotives in 1857, and in 1860, only four years after Bessemer's patent, he built six mill engine boilers from steel for Platt Bros, Oldham. He solved the problems of using this new material, and by his death had made c.2,800 steel boilers with pressures up to 250 psi (17.6 kg/cm2).He was a pioneer in the general introduction of steel and in 1863–4 was a partner in establishing the Yorkshire Iron and Steel Works at Penistone. This was the first works to depend entirely upon Bessemer steel for engineering purposes and was later sold at a large profit to Charles Cammell \& Co., Sheffield. When he started this works, he also patented improvements both to the Bessemer converters and to the engines which provided their blast. In 1870 he helped to turn Lincolnshire into an important ironmaking area by erecting the North Lincolnshire Ironworks. He was also a shareholder in ironworks in South Wales and Cumberland.He contributed to the development of the stationary steam engine, for as early as 1855 he built one to run with a pressure of 150 psi (10.5 kg/cm) that worked quite satisfactorily. He reheated the steam between the cylinders of compound engines and then in 1861–2 patented a triple-expansion engine, followed in 1873 by a quadruple-expansion one to further economize steam. In 1858 he developed improved machinery for testing tensile strength and compressive resistance of materials, and in the same year patents for hydraulic lifting jacks and riveting machines were obtained.He was a founding member of the Iron and Steel Institute and became its President in 1888 when it visited Manchester. The previous year he had been President of the Institution of Civil Engineers when he was presented with the Bessemer Gold Medal. He was a constant contributor at the meetings of these associations as well as those of the Institution of Mechanical Engineers. He did not live to see the opening of one of his final achievements, the Manchester Ship Canal. He was the one man who, by his indomitable energy and skill at public speaking, roused the enthusiasm of the people in Manchester for this project and he made it a really practical proposition in the face of strong opposition.[br]Principal Honours and DistinctionsPresident, Institution of Civil Engineers 1887.President, Iron and Steel Institute 1888. Institution of Civil Engineers Bessemer Gold Medal 1887.Further ReadingObituary, Engineer 69:56.Obituary, Engineering 49:66–8.Obituary, Proceedings of the Institution of Civil Engineers 100:374–8.H.W.Dickinson, 1938, A Short History of the Steam Engine, Cambridge University Press (provides an illustration of Adamson's flanged seam for boilers).R.L.Hills, 1989, Power from Steam. A History of the Stationary Steam Engine, Cambridge University Press (covers the development of the triple-expansion engine).RLH -
8 Nasmyth, James Hall
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering[br]b. 19 August 1808 Edinburgh, Scotlandd. 7 May 1890 London, England[br]Scottish mechanical engineer and inventor of the steam-hammer.[br]James Nasmyth was the youngest son of Alexander Nasmyth (1758–1840), the portrait and landscape painter. According to his autobiography he was named James Hall after his father's friend, the geologist Sir James Hall (1761–1832), but he seems never to have used his second name in official documents. He received an elementary education at Edinburgh High School, but left at the age of 12. He attended evening classes at the Edinburgh School of Arts for the instruction of Mechanics between 1821 and 1825, and gained experience as a mechanic at an early age in his father's workshop. He shared these early experiences with his brother George, who was only a year or so older, and in the 1820s the brothers built several model steam engines and a steam-carriage capable of carrying eight passengers on the public roads. In 1829 Nasmyth obtained a position in London as personal assistant to Henry Maudslay, and after Maudslay's death in February 1831 he remained with Maudslay's partner, Joshua Field, for a short time. He then returned to Edinburgh, where he and his brother George started in a small way as general engineers. In 1834 they moved to a small workshop in Manchester, and in 1836, with the aid of financial backing from some Manchester businessmen, they established on a site at Patricroft, a few miles from the city, the works which became known as the Bridgewater Foundry. They were soon joined by a third partner, Holbrook Gaskell (1813–1909), who looked after the administration of the business, the firm then being known as Nasmyths Gaskell \& Co. They specialized in making machine tools, and Nasmyth invented many improvements so that they soon became one of the leading manufacturers in this field. They also made steam locomotives for the rapidly developing railways. James Nasmyth's best-known invention was the steam-hammer, which dates from 1839 but was not patented until 1842. The self-acting control gear was probably the work of Robert Wilson and ensured the commercial success of the invention. George Nasmyth resigned from the partnership in 1843 and in 1850 Gaskell also resigned, after which the firm continued as James Nasmyth \& Co. James Nasmyth himself retired at the end of 1856 and went to live at Penshurst, Kent, in a house which he named "Hammerfield" where he devoted his time mainly to his hobby of astronomy. Robert Wilson returned to become Managing Partner of the firm, which later became Nasmyth, Wilson \& Co. and retained that style until its closure in 1940. Nasmyth's claim to be the sole inventor of the steam-hammer has been disputed, but his patent of 1842 was not challenged and the fourteen-year monopoly ensured the prosperity of the business so that he was able to retire at the age of 48. At his death in 1890 he left an estate valued at £243,805.[br]Bibliography1874, with J.Carpenter, The Moon Considered as a Planet, a World, and a Satellite, London.1883, Autobiography, ed. Samuel Smiles, London.Further ReadingR.Wailes, 1963, "James Nasmyth—Artist's Son", Engineering Heritage, vol. I, London, 106–11 (a short account).J.A.Cantrell, 1984, James Nasmyth and the Bridgewater Foundry: A Study of Entrepreneurship in the Early Engineering Industry, Manchester (a full-length critical study).——1984–5, "James Nasmyth and the steam hammer", Transactions of the Newcomen Society 56:133–8.RTS
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