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41 Torres Vedras, Battle of
(1810)A hilly area near the village of Torres Vedras, north of Lisbon, is the site where Portuguese and English forces of the Duke of Wellington withstood repeated French attacks under Andre Masséna from 9 October to 14 November 1810. Blocking the way to Lisbon, Wellington's defensive preparations were successful, based as they were on successful British and Portuguese liaison and shared fighting spirit. After his failure before the Lines of Torres Vedras and British and Portuguese fortified works, Masséna hesitated and sent to Napoleon for instructions.The French commander, however, was greatly weakened due to food shortages and to the fact that the supply lines with Spain were now cut. Therefore, before Napoleon could answer his messages, Mas-séna was forced to begin his withdrawal to Spain. Masséna withdrew from Portugal in April 1811 and, with the abandonment of a French garrison at Almeida on the frontier, France's occupation of Portugal was at an end. The remainder of the Peninsular Wars then moved to Spain.Historical dictionary of Portugal > Torres Vedras, Battle of
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42 pity
1 noun(a) (compassion) pitié f, compassion f;∎ I feel great pity for them j'ai beaucoup de pitié pour eux, je les plains énormément;∎ the sight moved her to pity le spectacle l'a apitoyée ou attendrie;∎ out of pity par pitié;∎ to take or to have pity on sb avoir pitié de qn∎ have pity on the children! ayez pitié des enfants!;∎ he showed no pity to the traitors il s'est montré impitoyable envers les traîtres;(c) (misfortune, shame) dommage m;∎ what a pity! c'est dommage!;∎ it's a pity (that) she isn't here quel dommage qu'elle ne soit pas là;∎ it seems a pity not to finish the bottle ce serait dommage de ne pas finir la bouteille;∎ we're leaving tomorrow, more's the pity nous partons demain, malheureusementavoir pitié de, s'apitoyer sur;∎ he pities himself il s'apitoie sur son sort;∎ they are greatly to be pitied ils sont bien à plaindre -
43 Bramah, Joseph
SUBJECT AREA: Civil engineering, Domestic appliances and interiors, Land transport, Mechanical, pneumatic and hydraulic engineering, Public utilities[br]b. 2 April 1749 Stainborough, Yorkshire, Englandd. 9 December 1814 Pimlico, London, England[br]English inventor of the second patented water-closet, the beer-engine, the Bramah lock and, most important, the hydraulic press.[br]Bramah was the son of a tenant farmer and was educated at the village school before being apprenticed to a local carpenter, Thomas Allot. He walked to London c.1773 and found work with a Mr Allen that included the repair of some of the comparatively rare water-closets of the period. He invented and patented one of his own, which was followed by a water cock in 1783. His next invention, a greatly improved lock, involved the devising of a number of special machine tools, for it was one of the first devices involving interchangeable components in its manufacture. In this he had the help of Henry Maudslay, then a young and unknown engineer, who became Bramah's foreman before setting up business on his own. In 1784 he moved his premises from Denmark Street, St Giles, to 124 Piccadilly, which was later used as a showroom when he set up a factory in Pimlico. He invented an engine for putting out fires in 1785 and 1793, in effect a reciprocating rotary-vane pump. He undertook the refurbishment and modernization of Norwich waterworks c.1793, but fell out with Robert Mylne, who was acting as Consultant to the Norwich Corporation and had produced a remarkably vague specification. This was Bramah's only venture into the field of civil engineering.In 1797 he acted as an expert witness for Hornblower \& Maberley in the patent infringement case brought against them by Boulton and Watt. Having been cut short by the judge, he published his proposed evidence in "Letter to the Rt Hon. Sir James Eyre, Lord Chief Justice of the Common Pleas…etc". In 1795 he was granted his most important patent, based on Pascal's Hydrostatic Paradox, for the hydraulic press which also incorporated the concept of hydraulics for the transmission of both power and motion and was the foundation of the whole subsequent hydraulic industry. There is no truth in the oft-repeated assertion originating from Samuel Smiles's Industrial Biography (1863) that the hydraulic press could not be made to work until Henry Maudslay invented the self-sealing neck leather. Bramah used a single-acting upstroking ram, sealed only at its base with a U-leather. There was no need for a neck leather.He also used the concept of the weight-loaded, in this case as a public-house beer-engine. He devised machinery for carbonating soda water. The first banknote-numbering machine was of his design and was bought by the Bank of England. His development of a machine to cut twelve nibs from one goose quill started a patent specification which ended with the invention of the fountain pen, patented in 1809. His coach brakes were an innovation that was followed bv a form of hydropneumatic carriage suspension that was somewhat in advance of its time, as was his patent of 1812. This foresaw the introduction of hydraulic power mains in major cities and included the telescopic ram and the air-loaded accumulator.In all Joseph Bramah was granted eighteen patents. On 22 March 1813 he demonstrated a hydraulic machine for pulling up trees by the roots in Hyde Park before a large crowd headed by the Duke of York. Using the same machine in Alice Holt Forest in Hampshire to fell timber for ships for the Navy, he caught a chill and died soon after at his home in Pimlico.[br]Bibliography1778, British patent no. 1177 (water-closet). 1784, British patent no. 1430 (Bramah Lock). 1795, British patent no. 2045 (hydraulic press). 1809, British patent no. 3260 (fountain pen). 1812, British patent no. 3611.Further ReadingI.McNeil, 1968, Joseph Bramah, a Century of Invention.S.Smiles, 1863, Industrial Biography.H.W.Dickinson, 1942, "Joseph Bramah and his inventions", Transactions of the Newcomen Society 22:169–86.IMcN -
44 Dunlop, John Boyd
SUBJECT AREA: Land transport[br]b. 5 February 1840 Dreghorn, Ayrshire, Scotlandd. 23 October 1921 Ballsbridge, Dublin, Ireland[br]Scottish inventor and pioneer of the pneumatic tyre.[br]Reared in an agricultural community, Dunlop became a qualified veterinary surgeon and practised successfully in Edinburgh and then in Belfast when he moved there in 1867. In October 1887, Dunlop's 9-year-old son complained of the rough ride he experienced with his tricycle over the cobbled streets of Belfast. Dunlop devised and fitted rubber air tubes, held on to a wooden ring by tacking a linen covering which he fixed around the wheels of the tricycle. A marked improvement in riding quality was noted. After further development, a new tricycle was ordered, with the new airtube wheels. This was so successful that Dunlop applied for a patent on 23 July 1889, granted on 7 December. With tyres made in Edinburgh to his specification, bicycles were manufactured by Edlin \& Co. of Belfast and put on sale complete with pneumatic tyres. The successful performance of a racing bicycle thus equipped inspired an unsuccessful competitor, William Harvey de Cros, who had used a solid-tyred machine, to take an interest in Dunlop's invention. With Dunlop, he refloated a company in Dublin, the Pneumatic Tyre \& Booth's Cycle Agency. Dunlop made over his patents, for the tyre, valves, rims and fixing methods, to Du Cros and took shares in the company. Although he was involved in it for many years, it was Du Cros who steered the company through several struggles to success.The pneumatic tyre revolutionized cycling and made possible the success of the motor vehicle, although Dunlop did not profit greatly from his invention. After the sale of the company in 1896, to E.T.Hooley for $3 million, he took no further part in the development of the pneumatic tyre. The company went on to become the great Dunlop Rubber Company.[br]Further ReadingJ.McClintock, 1923, History of the Pneumatic Tyre, Belfast (written by Dunlop's daughter, who based the book on her father's reminiscences).LRD -
45 Hooke, Robert
[br]b. 18 July 1635 Freshwater, Isle of Wight, Englandd. 3 March 1703 London, England[br]English physicist, astronomer and mechanician.[br]Son of Revd John Hooke, minister of the parish, he was a sickly child who was subject to headaches which prevented protracted study. He devoted his time while alone to making mechanical models including a wooden clock. On the death of his father in October 1648 he was left £100 and went to London, where he became a pupil of Sir Peter Lely and then went to Westminster School under Dr Busby. There he learned the classical languages, some Hebrew and oriental languages while mastering six books of Euclid in one week. In 1653 he entered Christ Church College, Oxford, where he graduated MA in 1663, after studying chemistry and astronomy. In 1662 he was appointed Curator of Experiments to the Royal Society and was elected a Fellow in 1663. In 1665 his appointment was made permanent and he was given apartments in Gresham College, where he lived until his death in 1703. He was an indefatigable experimenter, perhaps best known for the invention of the universal joint named after him. The properties of the atmosphere greatly engaged him and he devised many forms of the barometer. He was the first to apply the spiral spring to the regulation of the balance wheel of the watch in an attempt to measure longitude at sea, but he did not publish his results until after Huygens's reinvention of the device in 1675. Several of his "new watches" were made by Thomas Tompion, one of which was presented to King Charles II. He is said to have invented, among other devices, thirty different ways of flying, the first practical system of telegraphy, an odometer, a hearing aid, an arithmetical machine and a marine barometer. Hooke was a small man, somewhat deformed, with long, lank hair, who went about stooped and moved very quickly. He was of a melancholy and mistrustful disposition, ill-tempered and sharp-tongued. He slept little, often working all night and taking a nap during the day. John Aubrey, his near-contemporary, wrote of Hooke, "He is certainly the greatest Mechanick this day in the World." He is said to have been the first to establish the true principle of the arch. His eyesight failed and he was blind for the last year of his life. He is best known for his Micrographia, or some Physiological Descriptions of Minute Bodies, first published in 1665. After the Great Fire of London, he exhibited a model for the rebuilding of the City. This was not accepted, but it did result in Hooke's appointment as one of two City Surveyors. This proved a lucrative post and through it Hooke amassed a fortune of some thousands of pounds, which was found intact after his death some thirty years later. It had never been opened in the interim period. Among the buildings he designed were the new Bethlehem (Bedlam) Hospital, the College of Physicians and Montague House.[br]Principal Honours and DistinctionsFRS 1663; Secretary 1677–82.IMcN -
46 McCoy, Elijah
SUBJECT AREA: Steam and internal combustion engines[br]b. 1843 Colchester, Ontario, Canadad. 1929 Detroit, Michigan (?), USA[br]African-American inventor of steam-engine lubricators.[br]McCoy was born into a community of escaped African-American slaves. As a youth he went to Scotland and served an apprenticeship in Edinburgh in mechanical engineering. He returned to North America and ended up in Ypsilanti, Michigan, seeking employment at the headquarters of the Michigan Central Railroad Company. In spite of his training, the only job McCoy could obtain was that of locomotive fireman. Still, that enabled him to study at close quarters the problem of lubricating adequately the moving parts of a steam locomotive. Inefficient lubrication led to overheating, delays and even damage. In 1872 McCoy patented the first of his lubricating devices, applicable particularly to stationary engines. He assigned his patent rights to W. and S.C.Hamlin of Ypsilanti, from which he derived enough financial resources to develop his invention. A year later he patented an improved hydrostatic lubricator, which could be used for both stationary and locomotive engines, and went on to make further improvements. McCoy's lubricators were widely taken up by other railroads and his employers promoted him from the footplate to the task of giving instruction in the use of his lubricating equipment. Many others had been attempting to achieve the same result and many rival products were on the market, but none was superior to McCoy's, which came to be known as "the Real McCoy", a term that has since acquired a wider application than to engine lubricators. McCoy moved to Detroit, Michigan, as a patent consultant in the railroad business. Altogether, he took out over fifty patents for various inventions, so that he became one of the most prolific of nineteenth-century black inventors, whose activities had been so greatly stimulated by the freedoms they acquired after the American Civil War. His more valuable patents were assigned to investors, who formed the Elijah McCoy Manufacturing Company. McCoy himself, however, was not a major shareholder, so he seems not to have derived the benefit that was due to him.[br]Further ReadingP.P.James, 1989, The Real McCoy: African-American Invention and Innovation 1619– 1930, Washington: Smithsonian Institution, pp. 73–5.LRD -
47 McNaught, William
SUBJECT AREA: Steam and internal combustion engines[br]b. 27 May 1813 Sneddon, Paisley, Scotlandd. 8 January 1881 Manchester, England[br]Scottish patentee of a very successful form of compounding beam engine with a high-pressure cylinder between the fulcrum of the beam and the connecting rod.[br]Although born in Paisley, McNaught was educated in Glasgow where his parents had moved in 1820. He followed in his father's footsteps and became an engineer through an apprenticeship with Robert Napier at the Vulcan Works, Washington Street, Glasgow. He also attended science classes at the Andersonian University in the evenings and showed such competence that at the age of 19 he was offered the position of being in charge of the Fort-Gloster Mills on the Hoogly river in India. He remained there for four years until 1836, when he returned to Scotland because the climate was affecting his health.His father had added the revolving cylinder to the steam engine indicator, and this greatly simplified and extended its use. In 1838 William joined him in the business of manufacturing these indicators at Robertson Street, Glasgow. While advising textile manufacturers on the use of the indicator, he realized the need for more powerful, smoother-running and economical steam engines. He provided the answer by placing a high-pressure cylinder midway between the fulcrum of the beam and the connecting rod on an ordinary beam engine. The original cylinder was retained to act as the low-pressure cylinder of what became a compound engine. This layout not only reduced the pressures on the bearing surfaces and gave a smoother-running engine, which was one of McNaught's aims, but he probably did not anticipate just how much more economical his engines would be; they often gave a saving of fuel up to 40 per cent. This was because the steam pipe connecting the two cylinders acted as a receiver, something lacking in the Woolf compound, which enabled the steam to be expanded properly in both cylinders. McNaught took out his patent in 1845, and in 1849 he had to move to Manchester because his orders in Lancashire were so numerous and the scope was much greater there than in Glasgow. He took out further patents for equalizing the stress on the working parts, but none was as important as his original one, which was claimed to have been one of the greatest improvements since the steam engine left the hands of James Watt. He was one of the original promoters of the Boiler Insurance and Steam Power Company and was elected Chairman in 1865, a position he retained until a short time before his death.[br]Bibliography1845, British patent no. 11,001 (compounding beam engine).Further ReadingObituary, Engineer 51.Obituary, Engineering 31.R.L.Hills, 1989, Power from Steam. A History of the Stationary Steam Engine, Cambridge University Press (the fullest account of McNaught's proposals for compounding).RLH -
48 Merritt, William Hamilton
[br]b. 3 July 1793 Bedford, Winchester County, New York, USAd. 5 July 1862 aboard a vessel on the Cornwall Canal, Canada[br]American-born Canadian merchant, entrepreneur and promoter of the First and Second Welland Canals bypassing the Niagara Falls and linking Lakes Ontario and Erie.[br]Although he was born in the USA, his family moved to Canada in 1796. Educated in St Catharines and Niagara, he received a good training in mathematics, navigation and surveying. He served with distinction in the 1812–14 war, although he was captured by the Americans in 1814. After the war he established himself in business operating a sawmill, a flour mill, a small distillery, a potashery, a cooperage and a smithy, as well as running a general store. By 1818 he was one of the leading figures in the area and realized that for real economic progress it was essential to improve communications in the Niagara peninsula; in that year he surveyed a route for a waterway that would carry boats.In c. 1820 he began discussions with neighbouring landowners and businessmen, who, on 19 January 1824 together obtained a charter for building the first Welland Canal to link Lakes Ontario and Erie. They were greatly influenced by the realization that the completion of the Erie Canal would attract trade through the United States instead of through Canada. Construction began on 30 November 1824, largely with redundant labour from the Erie Canal. Merritt foresaw the need for financial support and for publicity to sustain interest in the project. Accordingly he started a newspaper, the Farmer's Journal and Welland Canal Intelligencer, which was published until 1835. He also visited York (now Toronto), the capital of Upper Canada, and obtained some support, but the Government was reluctant to assist financially. He was more successful in raising money in New York. Then in 1828 he visited England to see Telford and persuaded both Telford and the Duke of Wellington, among others, to purchase shares. The Canal opened on 30 November 1829. In 1832 Merritt became a member of the Legislative Assembly of Upper Canada, and after the Union of the Canadas in 1841 he was elected to the new Assembly, later serving as Minister of Public Works and then as President of the Assembly. He advocated improvements to the St Lawrence River and also promoted railways. He pioneered a bridge across the Niagara River that was opened in 1849 and later carried a railway. He was not a canal engineer, but he did pioneer communications in developing territory.[br]Further ReadingR.M.Styran and R.R.Taylor, 1988, The Welland Canals. The Growth of Mr Merritt'sDitch, Erin, Ont.: Boston Mills Press.JHBBiographical history of technology > Merritt, William Hamilton
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49 Monckhoven, Désiré Charles Emanuel van
SUBJECT AREA: Photography, film and optics[br]b. 1834 Ghent, Belgium d. 1882[br]Belgian chemist, photographic researcher, inventor and author.[br]Born in Belgium of German stock, Monckhoven spoke German and French with equal fluency. He originally studied chemistry, but devoted the greater part of his working life to photography. His improved solar enlarger of 1864 was seen by his contemporaries as one of the significant innovations of the day. In 1867 he moved to Vienna, where he became involved in portrait photography, but returned to Ghent in 1870. In 1871 he announced his discovery of a practicable collodion dry-plate process, and later in the decade he conducted research into the carbon printing process. In 1879 Monckhoven constructed a comprehensively equipped laboratory where he commenced a series of experiments on gelatine dry-plate emulsions, including some which yielded the discovery that the ripening of silver bromide was greatly accelerated by ammonia; this allowed the production of emulsions of much greater sensitivity. He was a prolific author, and his 1852 book on photography, Traité général de photographie, published when he was only 18, became one of the standard texts of his day.[br]Bibliography1852, Traité général de photographie, Paris.Further ReadingJ.M.Eder, 1945, History of Photography, trans. E.Epstean, New York.JWBiographical history of technology > Monckhoven, Désiré Charles Emanuel van
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50 Poncelet, Jean Victor
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering[br]b. 1 July 1788 Metz, Franced. 22 December 1867 Paris, France[br]French mathematician and military and hydraulic engineer.[br]Poncelet studied mathematics at the Ecole Polytechnique in Paris from 1807 to 1810. He joined the Army, gaining admission to the Corps of Engineers. He worked on the fortifications on the Isle of Walcheren in Holland, and in 1812 he found himself on the Russian front, engulfed in the disastrous defeat of the French at Krasnoi. Poncelet was left for dead on the field, but he was found by the Russians and taken to Saratov, where he was imprisoned for two years. He had ample opportunity there to ponder mathematical problems, a mental process from which stemmed his pioneering advances in projective geometry.After his release he returned to this native city of Metz, where he undertook routine military engineering and teaching tasks. These left him time to pursue his mathematical studies in projective geometry. This bore fruit in a series of publications, most notably the first volume of his Traité des propriétés projectives des figures (1822, Paris), the first book to be devoted to the new discipline of projective geometry. With his election to the Académie des Sciences in 1834, Poncelet moved to Paris and devoted much of his time to developing courses in applied mechanics in the Faculty of Science, resulting in a number of books, especially the Introduction à la mécanique industrielle, physique ou expérimentale (1841, Paris: Metz). In 1848 he had attained the rank of general and was made Commandant of the Ecole Polytechnique, a post he held for two years. After his retirement in 1850 he was deeply involved in the industrial machines and tools division at both the Great Exhibition in London in 1851 and the similar exhibition in Paris in 1855.Most of Poncelet's work in applied mechanics and technology was conceived during the period 1825–40. His technological innovations were centred on hydraulic engineering, and in 1826 he invented an inward-flow turbine. At the same time he directed his attention to the vertical undershot water-wheel, with wooden blades set radially and substituted curved metal blades: he used tight-fitting masonry and floors in the wheel pits so that all the water would be swept into the spaces between the blades. In addition, he ensured that the water flowing from the blades fell clear of the wheel and did not run in tail water. This greatly improved the efficiency of the water-wheel.[br]BibliographyH.Tribout, 1936, Un Grand Savant: le général Jean-Victor Poncelet, Paris, pp. 204–20 (the most complete list of his published works).Further ReadingI.Didion, 1870, "Notice sur la vie et les ouvrages du général J.-V.Poncelet", Mémoires de l'Académie de Metz 50:101–59.M.Daumas (ed), 1968, Histoire des techniques, Vol. 3, Paris (briefly describes his technological work).LRD -
51 Preece, Sir William Henry
[br]b. 15 February 1834 Bryn Helen, Gwynedd, Walesd. 6 November 1913 Penrhos, Gwynedd, Wales[br]Welsh electrical engineer who greatly furthered the development and use of wireless telegraphy and the telephone in Britain, dominating British Post Office engineering during the last two decades of the nineteenth century.[br]After education at King's College, London, in 1852 Preece entered the office of Edwin Clark with the intention of becoming a civil engineer, but graduate studies at the Royal Institution under Faraday fired his enthusiasm for things electrical. His earliest work, as connected with telegraphy and in particular its application for securing the safe working of railways; in 1853 he obtained an appointment with the Electric and National Telegraph Company. In 1856 he became Superintendent of that company's southern district, but four years later he moved to telegraph work with the London and South West Railway. From 1858 to 1862 he was also Engineer to the Channel Islands Telegraph Company. When the various telegraph companies in Britain were transferred to the State in 1870, Preece became a Divisional Engineer in the General Post Office (GPO). Promotion followed in 1877, when he was appointed Chief Electrician to the Post Office. One of the first specimens of Bell's telephone was brought to England by Preece and exhibited at the British Association meeting in 1877. From 1892 to 1899 he served as Engineer-in-Chief to the Post Office. During this time he made a number of important contributions to telegraphy, including the use of water as part of telegraph circuits across the Solent (1882) and the Bristol Channel (1888). He also discovered the existence of inductive effects between parallel wires, and with Fleming showed that a current (thermionic) flowed between the hot filament and a cold conductor in an incandescent lamp.Preece was distinguished by his administrative ability, some scientific insight, considerable engineering intuition and immense energy. He held erroneous views about telephone transmission and, not accepting the work of Oliver Heaviside, made many errors when planning trunk circuits. Prior to the successful use of Hertzian waves for wireless communication Preece carried out experiments, often on a large scale, in attempts at wireless communication by inductive methods. These became of historic interest only when the work of Maxwell and Hertz was developed by Guglielmo Marconi. It is to Preece that credit should be given for encouraging Marconi in 1896 and collaborating with him in his early experimental work on radio telegraphy.While still employed by the Post Office, Preece contributed to the development of numerous early public electricity schemes, acting as Consultant and often supervising their construction. At Worcester he was responsible for Britain's largest nineteenth-century public hydro-electric station. He received a knighthood on his retirement in 1899, after which he continued his consulting practice in association with his two sons and Major Philip Cardew. Preece contributed some 136 papers and printed lectures to scientific journals, ninety-nine during the period 1877 to 1894.[br]Principal Honours and DistinctionsCB 1894. Knighted (KCB) 1899. FRS 1881. President, Society of Telegraph Engineers, 1880. President, Institution of Electrical Engineers 1880, 1893. President, Institution of Civil Engineers 1898–9. Chairman, Royal Society of Arts 1901–2.BibliographyPreece produced numerous papers on telegraphy and telephony that were presented as Royal Institution Lectures (see Royal Institution Library of Science, 1974) or as British Association reports.1862–3, "Railway telegraphs and the application of electricity to the signaling and working of trains", Proceedings of the ICE 22:167–93.Eleven editions of Telegraphy (with J.Sivewright), London, 1870, were published by 1895.1883, "Molecular radiation in incandescent lamps", Proceedings of the Physical Society 5: 283.1885. "Molecular shadows in incandescent lamps". Proceedings of the Physical Society 7: 178.1886. "Electric induction between wires and wires", British Association Report. 1889, with J.Maier, The Telephone.1894, "Electric signalling without wires", RSA Journal.1898, "Aetheric telegraphy", Proceedings of the Institution of Electrical Engineers.Further ReadingJ.J.Fahie, 1899, History of Wireless Telegraphy 1838–1899, Edinburgh: Blackwood. E.Hawkes, 1927, Pioneers of Wireless, London: Methuen.E.C.Baker, 1976, Sir William Preece, F.R.S. Victorian Engineer Extraordinary, London (a detailed biography with an appended list of his patents, principal lectures and publications).D.G.Tucker, 1981–2, "Sir William Preece (1834–1913)", Transactions of the Newcomen Society 53:119–36 (a critical review with a summary of his consultancies).GW / KFBiographical history of technology > Preece, Sir William Henry
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52 Tompion, Thomas
SUBJECT AREA: Horology[br]baptized 25 July 1639 Ickwell Green, Englandd. 20 November 1713 London, England[br]English clock-and watchmaker of great skill and ingenuity who laid the foundations of his country's pre-eminence in that field.[br]Little is known about Tompion's early life except that he was born into a family of blacksmiths. When he was admitted into the Clockmakers' Company in 1671 he was described as a "Great Clockmaker", which meant a maker of turret clocks, and as these clocks were made of wrought iron they would have required blacksmithing skills. Despite this background, he also rapidly established his reputation as a watchmaker. In 1674 he moved to premises in Water Lane at the sign of "The Dial and Three Crowns", where his business prospered and he remained for the rest of his life. Assisted by journeymen and up to eleven apprentices at any one time, the output from his workshop was prodigious, amounting to over 5,000 watches and 600 clocks. In his lifetime he was famous for his watches, as these figures suggest, but although they are of high quality they do not differ markedly from those produced by other London watchmakers of that period. He is now known more for the limited number of elaborate clocks that he produced, such as the equation clock and the spring-driven clock of a year's duration, which he made for William III. Around 1711 he took into partnership his nephew by marriage, George Graham, who carried on the business after his death.Although Tompion does not seem to have been particularly innovative, he lived at a time when great advances were being made in horology, which his consummate skill as a craftsman enabled him to exploit. In this he was greatly assisted by his association with Robert Hooke, for whom Tompion constructed a watch with a balance spring in 1675; at that time Hooke was trying to establish his priority over Huygens for this invention. Although this particular watch was not successful, it made Tompion aware of the potential of the balance spring and he became the first person in England to apply Huygens's spiral spring to the balance of a watch. Although Thuret had constructed such a watch somewhat earlier in France, the superior quality of Tompion's wheel work, assisted by Hooke's wheel-cutting engine, enabled him to dominate the market. The anchor escapement (which reduced the amplitude of the pendulum's swing) was first applied to clocks around this time and produced further improvements in accuracy which Tompion and other makers were able to utilize. However, the anchor escapement, like the verge escapement, produced recoil (the clock was momentarily driven in reverse). Tompion was involved in attempts to overcome this defect with the introduction of the dead-beat escapement for clocks and the horizontal escapement for watches. Neither was successful, but they were both perfected later by George Graham.[br]Principal Honours and DistinctionsMaster of the Clockmakers' Company 1703.Bibliography1695, with William Houghton and Edward Barlow, British patent no. 344 (for a horizontal escapement).Further ReadingR.W.Symonds, 1951, Thomas Tompion, His Life and Work, London (a comprehensive but now slightly dated account).H.W.Robinson and W.Adams (eds), 1935, The Diary of Robert Hooke (contains many references to Tompion).D.Howse, 1970, The Tompion clocks at Greenwich and the dead-beat escapement', Antiquarian Horology 7:18–34, 114–33.DV -
53 أثر (في)
أَثَّرَ (في) \ affect: to have an effect on: Bad food affects our health. move the feelings of:: The news affected him greatly; Food affects our health govern. rule; control. impress: to have a strong effect on (sb.); fill (sb.) with admiration: His honesty impressed me. influence: to have an effect on (a person, his character, beliefs, actions, a course of events, etc.): His choice of work was influenced by his father’s advice. move: to stir the feelings of: This sad story moved her deeply. \ أَثَّرَ \ act: to have an effect: Acid acts on some metals. \ See Also عَمَلَ في \ أَثَّرَ (في النفس) \ touch: to have a sad effect on; to concern: Her sad story touched my heart. It was a touching story (It stirred my feelings). \ أَثَر \ effect: to result: His troubles had a bad effect on his health. Scientists study the causes and effects of a disease, the feeling that sth. gives to those who see or hear it: The colours of the sunset produced a wonderful effect. impression: an effect on the mind: I formed a bad impression of his work. She made a good impression on me. influence: sb. or sth. that has an effect on sb. or sth. else; effect. mark: any sign that one object has been touched by another: a dirty mark on the wall; a footmark in the sand. relic: sth. that has been left behind from a past time: relics of the war, like ruined buildings and old guns; relics of the ancient Egyptian kings. tinge: a slight sign or amount: a tinge of colour; a tinge of sadness in her voice. tint: a shade of a colour: Sunglasses have a dark tint. trace: a sign or mark that shows where sth. had been: There were traces of blood on the floor. trail: a track left by sb. or sth.: The storm left a trail of destruction. The police were on his trail (were following signs, in search of him). vestige: a slight mark, track, etc., remaining of sth. that is now gone or has been destroyed. wake: the track on the water by a ship. \ See Also تأثير (تَأْثير)، انطباع (اِنْطِباع)، علامة (عَلامَة) \ أَثَر (الجُرح المُنْدَمِل) \ scar: a mark that is left on the skin by an old wound. \ أَثَر أدَبِيّ فَنّيّ فَذّ \ classic: sth., esp. a book, of lasting quality, that will always be valued: Gulliver’s Travels is a classic. \ أَثَر الإصْبَع \ fingermark: any dirty mark that is left by a finger. \ أَثَر أَقْدَام \ footprint: a footmark. \ أَثَر أَقْدَام العَجَلات \ track: a set of footmarks; the line left by a wheel: We followed their tracks through the snow. \ أَثَر أو عَلامَة القَدَم \ footmark: the mark left by a foot or shoe: a muddy footmark; the footmarks of a dog. \ أَثَر دُولاب في الأرض الليِّنة \ rut: a deep track that is left by a wheel in soft ground: cart ruts. -
54 affect
أَثَّرَ (في) \ affect: to have an effect on: Bad food affects our health. move the feelings of:: The news affected him greatly; Food affects our health govern. rule; control. impress: to have a strong effect on (sb.); fill (sb.) with admiration: His honesty impressed me. influence: to have an effect on (a person, his character, beliefs, actions, a course of events, etc.): His choice of work was influenced by his father’s advice. move: to stir the feelings of: This sad story moved her deeply. -
55 impress
أَثَّرَ (في) \ affect: to have an effect on: Bad food affects our health. move the feelings of:: The news affected him greatly; Food affects our health govern. rule; control. impress: to have a strong effect on (sb.); fill (sb.) with admiration: His honesty impressed me. influence: to have an effect on (a person, his character, beliefs, actions, a course of events, etc.): His choice of work was influenced by his father’s advice. move: to stir the feelings of: This sad story moved her deeply. -
56 influence
أَثَّرَ (في) \ affect: to have an effect on: Bad food affects our health. move the feelings of:: The news affected him greatly; Food affects our health govern. rule; control. impress: to have a strong effect on (sb.); fill (sb.) with admiration: His honesty impressed me. influence: to have an effect on (a person, his character, beliefs, actions, a course of events, etc.): His choice of work was influenced by his father’s advice. move: to stir the feelings of: This sad story moved her deeply. -
57 move
أَثَّرَ (في) \ affect: to have an effect on: Bad food affects our health. move the feelings of:: The news affected him greatly; Food affects our health govern. rule; control. impress: to have a strong effect on (sb.); fill (sb.) with admiration: His honesty impressed me. influence: to have an effect on (a person, his character, beliefs, actions, a course of events, etc.): His choice of work was influenced by his father’s advice. move: to stir the feelings of: This sad story moved her deeply. -
58 move the feelings of
أَثَّرَ (في) \ affect: to have an effect on: Bad food affects our health. move the feelings of:: The news affected him greatly; Food affects our health govern. rule; control. impress: to have a strong effect on (sb.); fill (sb.) with admiration: His honesty impressed me. influence: to have an effect on (a person, his character, beliefs, actions, a course of events, etc.): His choice of work was influenced by his father’s advice. move: to stir the feelings of: This sad story moved her deeply. -
59 rule; control
أَثَّرَ (في) \ affect: to have an effect on: Bad food affects our health. move the feelings of:: The news affected him greatly; Food affects our health govern. rule; control. impress: to have a strong effect on (sb.); fill (sb.) with admiration: His honesty impressed me. influence: to have an effect on (a person, his character, beliefs, actions, a course of events, etc.): His choice of work was influenced by his father’s advice. move: to stir the feelings of: This sad story moved her deeply. -
60 ilik
"bone marrow, marrow. -lerinde duymak /ı/ to feel (something) deep in one´s bones, feel (something) strongly and instinctively. -ine/-lerine geçmek see -ine/-lerine işlemek. - gibi 1. (meat) delicious and done to a turn, toothsome, scrumptious. 2. slang delectable, luscious, toothsome, voluptuous (young woman). -ine/-lerine işlemek /ın/ 1. to chill (someone) to the marrow, chill (someone) to the bone. 2. to wet (someone) to the skin, soak (someone) to the skin. 3. to affect (someone) deeply: O acı söz iliğine işledi. That harsh remark cut him to the quick. 4. to take possession of (someone): Hırs iliklerine işledi. Greed has taken possession of him. -ine/-lerine kadar 1. to the hilt; thoroughly. 2. deeply, deep down. -ine kadar ıslanmak to be wet to the skin, be soaked to the skin. -ini kemirmek /ın/ 1. (for something unpleasant) to bother (someone) greatly, get to (someone), give (someone) a fit. 2. to exploit, suck (someone´s) blood. -ini kurutmak/-ini kemiğini kurutmak /ın/ to drive (someone) crazy, drive (someone) to distraction, drive (someone) up the wall. -i sızlamak 1. /a/ to be deeply moved (by). 2. to feel a deep, throbbing ache."
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