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101 Telford, Thomas
[br]b. 9 August 1757 Glendinning, Dumfriesshire, Scotlandd. 2 September 1834 London, England.[br]Scottish civil engineer.[br]Telford was the son of a shepherd, who died when the boy was in his first year. Brought up by his mother, Janet Jackson, he attended the parish school at Westerkirk. He was apprenticed to a stonemason in Lochmaben and to another in Langholm. In 1780 he walked from Eskdale to Edinburgh and in 1872 rode to London on a horse that he was to deliver there. He worked for Sir William Chambers as a mason on Somerset House, then on the Eskdale house of Sir James Johnstone. In 1783–4 he worked on the new Commissioner's House and other buildings at Portsmouth dockyard.In late 1786 Telford was appointed County Surveyor for Shropshire and moved to Shrewsbury Castle, with work initially on the new infirmary and County Gaol. He designed the church of St Mary Magdalene, Bridgnorth, and also the church at Madley. Telford built his first bridge in 1790–2 at Montford; between 1790 and 1796 he built forty-five road bridges in Shropshire, including Buildwas Bridge. In September 1793 he was appointed general agent, engineer and architect to the Ellesmere Canal, which was to connect the Mersey and Dee rivers with the Severn at Shrewsbury; William Jessop was Principal Engineer. This work included the Pont Cysyllte aqueduct, a 1,000 ft (305 m) long cast-iron trough 127 ft (39 m) above ground level, which entailed an on-site ironworks and took ten years to complete; the aqueduct is still in use today. In 1800 Telford put forward a plan for a new London Bridge with a single cast-iron arch with a span of 600 ft (183 m) but this was not built.In 1801 Telford was appointed engineer to the British Fisheries Society "to report on Highland Communications" in Scotland where, over the following eighteen years, 920 miles (1,480 km) of new roads were built, 280 miles (450 km) of the old military roads were realigned and rebuilt, over 1,000 bridges were constructed and much harbour work done, all under Telford's direction. A further 180 miles (290 km) of new roads were also constructed in the Lowlands of Scotland. From 1804 to 1822 he was also engaged on the construction of the Caledonian Canal: 119 miles (191 km) in all, 58 miles (93 km) being sea loch, 38 miles (61 km) being Lochs Lochy, Oich and Ness, 23 miles (37 km) having to be cut.In 1808 he was invited by King Gustav IV Adolf of Sweden to assist Count Baltzar von Platen in the survey and construction of a canal between the North Sea and the Baltic. Telford surveyed the 114 mile (183 km) route in six weeks; 53 miles (85 km) of new canal were to be cut. Soon after the plans for the canal were completed, the King of Sweden created him a Knight of the Order of Vasa, an honour that he would have liked to have declined. At one time some 60,000 soldiers and seamen were engaged on the work, Telford supplying supervisors, machinery—including an 8 hp steam dredger from the Donkin works and machinery for two small paddle boats—and ironwork for some of the locks. Under his direction an ironworks was set up at Motala, the foundation of an important Swedish industrial concern which is still flourishing today. The Gotha Canal was opened in September 1832.In 1811 Telford was asked to make recommendations for the improvement of the Shrewsbury to Holyhead section of the London-Holyhead road, and in 1815 he was asked to survey the whole route from London for a Parliamentary Committee. Construction of his new road took fifteen years, apart from the bridges at Conway and over the Menai Straits, both suspension bridges by Telford and opened in 1826. The Menai bridge had a span of 579 ft (176 m), the roadway being 153 ft (47 m) above the water level.In 1817 Telford was appointed Engineer to the Exchequer Loan Commission, a body set up to make capital loans for deserving projects in the hard times that followed after the peace of Waterloo. In 1820 he became the first President of the Engineers Institute, which gained its Royal Charter in 1828 to become the Institution of Civil Engineers. He was appointed Engineer to the St Katharine's Dock Company during its construction from 1825 to 1828, and was consulted on several early railway projects including the Liverpool and Manchester as well as a number of canal works in the Midlands including the new Harecastle tunnel, 3,000 ft (914 m) long.Telford led a largely itinerant life, living in hotels and lodgings, acquiring his own house for the first time in 1821, 24 Abingdon Street, Westminster, which was partly used as a school for young civil engineers. He died there in 1834, after suffering in his later years from the isolation of deafness. He was buried in Westminster Abbey.[br]Principal Honours and DistinctionsFRSE 1803. Knight of the Order of Vasa, Sweden 1808. FRS 1827. First President, Engineers Insitute 1820.Further ReadingL.T.C.Rolt, 1979, Thomas Telford, London: Penguin.C.Hadfield, 1993, Thomas Telford's Temptation, London: M. \& M.Baldwin.IMcN -
102 Vignoles, Charles Blacker
[br]b. 31 May 1793 Woodbrook, Co. Wexford, Irelandd. 17 November 1875 Hythe, Hampshire, England[br]English surveyor and civil engineer, pioneer of railways.[br]Vignoles, who was of Huguenot descent, was orphaned in infancy and brought up in the family of his grandfather, Dr Charles Hutton FRS, Professor of Mathematics at the Royal Military Academy, Woolwich. After service in the Army he travelled to America, arriving in South Carolina in 1817. He was appointed Assistant to the state's Civil Engineer and surveyed much of South Carolina and subsequently Florida. After his return to England in 1823 he established himself as a civil engineer in London, and obtained work from the brothers George and John Rennie.In 1825 the promoters of the Liverpool \& Manchester Railway (L \& MR) lost their application for an Act of Parliament, discharged their engineer George Stephenson and appointed the Rennie brothers in his place. They in turn employed Vignoles to resurvey the railway, taking a route that would minimize objections. With Vignoles's route, the company obtained its Act in 1826 and appointed Vignoles to supervise the start of construction. After Stephenson was reappointed Chief Engineer, however, he and Vignoles proved incompatible, with the result that Vignoles left the L \& MR early in 1827.Nevertheless, Vignoles did not sever all connection with the L \& MR. He supported John Braithwaite and John Ericsson in the construction of the locomotive Novelty and was present when it competed in the Rainhill Trials in 1829. He attended the opening of the L \& MR in 1830 and was appointed Engineer to two railways which connected with it, the St Helens \& Runcorn Gap and the Wigan Branch (later extended to Preston as the North Union); he supervised the construction of these.After the death of the Engineer to the Dublin \& Kingstown Railway, Vignoles supervised construction: the railway, the first in Ireland, was opened in 1834. He was subsequently employed in surveying and constructing many railways in the British Isles and on the European continent; these included the Eastern Counties, the Midland Counties, the Sheffield, Ashton-under-Lyme \& Manchester (which proved for him a financial disaster from which he took many years to recover), and the Waterford \& Limerick. He probably discussed rail of flat-bottom section with R.L. Stevens during the winter of 1830–1 and brought it into use in the UK for the first time in 1836 on the London \& Croydon Railway: subsequently rail of this section became known as "Vignoles rail". He considered that a broader gauge than 4 ft 8½ in. (1.44 m) was desirable for railways, although most of those he built were to this gauge so that they might connect with others. He supported the atmospheric system of propulsion during the 1840s and was instrumental in its early installation on the Dublin \& Kingstown Railway's Dalkey extension. Between 1847 and 1853 he designed and built the noted multi-span suspension bridge at Kiev, Russia, over the River Dnieper, which is more than half a mile (800 m) wide at that point.Between 1857 and 1863 he surveyed and then supervised the construction of the 155- mile (250 km) Tudela \& Bilbao Railway, which crosses the Cantabrian Pyrenees at an altitude of 2,163 ft (659 m) above sea level. Vignoles outlived his most famous contemporaries to become the grand old man of his profession.[br]Principal Honours and DistinctionsFellow of the Royal Astronomical Society 1829. FRS 1855. President, Institution of Civil Engineers 1869–70.Bibliography1830, jointly with John Ericsson, British patent no. 5,995 (a device to increase the capability of steam locomotives on grades, in which rollers gripped a third rail).1823, Observations upon the Floridas, New York: Bliss \& White.1870, Address on His Election as President of the Institution of Civil Engineers.Further ReadingK.H.Vignoles, 1982, Charles Blacker Vignoles: Romantic Engineer, Cambridge: Cambridge University Press (good modern biography by his great-grandson).See also: Samuda, Joseph d'AguilarPJGRBiographical history of technology > Vignoles, Charles Blacker
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103 Whitworth, Sir Joseph
[br]b. 21 December 1803 Stockport, Cheshire, Englandd. 22 January 1887 Monte Carlo, Monaco[br]English mechanical engineer and pioneer of precision measurement.[br]Joseph Whitworth received his early education in a school kept by his father, but from the age of 12 he attended a school near Leeds. At 14 he joined his uncle's mill near Ambergate, Derbyshire, to learn the business of cotton spinning. In the four years he spent there he realized that he was more interested in the machinery than in managing a cotton mill. In 1821 he obtained employment as a mechanic with Crighton \& Co., Manchester. In 1825 he moved to London and worked for Henry Maudslay and later for the Holtzapffels and Joseph Clement. After these years spent gaining experience, he returned to Manchester in 1833 and set up in a small workshop under a sign "Joseph Whitworth, Tool Maker, from London".The business expanded steadily and the firm made machine tools of all types and other engineering products including steam engines. From 1834 Whitworth obtained many patents in the fields of machine tools, textile and knitting machinery and road-sweeping machines. By 1851 the company was generally regarded as the leading manufacturer of machine tools in the country. Whitworth was a pioneer of precise measurement and demonstrated the fundamental mode of producing a true plane by making surface plates in sets of three. He advocated the use of the decimal system and made use of limit gauges, and he established a standard screw thread which was adopted as the national standard. In 1853 Whitworth visited America as a member of a Royal Commission and reported on American industry. At the time of the Crimean War in 1854 he was asked to provide machinery for manufacturing rifles and this led him to design an improved rifle of his own. Although tests in 1857 showed this to be much superior to all others, it was not adopted by the War Office. Whitworth's experiments with small arms led on to the construction of big guns and projectiles. To improve the quality of the steel used for these guns, he subjected the molten metal to pressure during its solidification, this fluid-compressed steel being then known as "Whitworth steel".In 1868 Whitworth established thirty annual scholarships for engineering students. After his death his executors permanently endowed the Whitworth Scholarships and distributed his estate of nearly half a million pounds to various educational and charitable institutions. Whitworth was elected an Associate of the Institution of Civil Engineers in 1841 and a Member in 1848 and served on its Council for many years. He was elected a Member of the Institution of Mechanical Engineers in 1847, the year of its foundation.[br]Principal Honours and DistinctionsBaronet 1869. FRS 1857. President, Institution of Mechanical Engineers 1856, 1857 and 1866. Hon. LLD Trinity College, Dublin, 1863. Hon. DCL Oxford University 1868. Member of the Smeatonian Society of Civil Engineers 1864. Légion d'honneur 1868. Society of Arts Albert Medal 1868.Bibliography1858, Miscellaneous Papers on Mechanical Subjects, London; 1873, Miscellaneous Papers on Practical Subjects: Guns and Steel, London (both are collections of his papers to technical societies).1854, with G.Wallis, The Industry of the United States in Machinery, Manufactures, andUseful and Ornamental Arts, London.Further ReadingF.C.Lea, 1946, A Pioneer of Mechanical Engineering: Sir Joseph Whitworth, London (a short biographical account).A.E.Musson, 1963, "Joseph Whitworth: toolmaker and manufacturer", Engineering Heritage, Vol. 1, London, 124–9 (a short biography).D.J.Jeremy (ed.), 1984–6, Dictionary of Business Biography, Vol. 5, London, 797–802 (a short biography).W.Steeds, 1969, A History of Machine Tools 1700–1910, Oxford (describes Whitworth's machine tools).RTS -
104 Wright, Arthur
[br]b. 1858 London, Englandd. 26 July 1931 Paignton, Devon, England[br]English engineer and electricity supply industry pioneer.[br]Arthur Wright, educated at Maryborough College, attended a course of training at the School of Submarine Telegraphy, Telephony and Electric Light in London. In 1882 he joined the Hammond Company in Brighton, the first company to afford a regular electricity supply in Britain on a commercial basis for street and private lighting. He invented a recording ammeter and also a thermal-demand indicator used in conjunction with a tariff based on maximum demand in addition to energy consumption. This indicator was to remain in use for almost half a century.Resigning his position in Brighton in 1889, he joined the staff of S.Z.de Ferranti and served with him during developments at the Grosvenor Gallery and Deptford stations in London. In 1891 he returned to Brighton as its first Borough Electrical Engineer. From 1900 onwards he had an extensive consulting practice designing early power stations, and was approached by many municipalities and companies in Britain, the United States, South America and Australia, primarily on finance and tariffs. Associated with the founding of the Municipal Electrical Association in 1905, the following year he became its first President.[br]Bibliography1901, British patent no. 23,153 (thermal maximum demand indicator).1922, "Early days of the Brighton electricity supply", Journal of the Institution of Electrical Engineers 60:497–9.Further ReadingObituary, 1931, Journal of the Institution of Electrical Engineers 69:1,327–8.R.H.Parsons, 1939, Early Days of the Power Station Industry, Cambridge, pp. 13–17 (describes Wright's pioneering inventions).GW -
105 בקר
בָּקַר(b. h.; √בק, v. בקע) to enter into, to clear, split; whence 1) (= בער) to eat up. Denom. בָּקָר (= בְּעִיר). 2) (= בער) to break forth, shine. Denom. בֹּקֶר. Pi. בִּיקֵּר, בִּקֵּר (b. h.) 1) to enter into, examine, search, distinguish (cmp. בִּין). Keth.106a מְבַקְּרֵי מומין those entrusted with the examination of sacrificial animals. Y.Bets. II, 61c top ובִיקְּרָן ממומן and had them examined (and declared free) from bodily defects. Ḥag.9b אין אומרים בַּקְּרוּוכ׳ we do not say, Examine ye a camel, a swine (i. e. only the deeds of distinguished persons are scrutinized); a. fr.Part. pass. מְבוּקָּר examined and found fit. Y.Ber.IV, 7b top טליים מְבוּקָּרִים lambs which passed examination. 2) to inquire after ones health, to visit the sick. Ned.IV, 4 (38b). ונכנס לְבַקְּרוֹ and comes to see him. Snh.68a; a. v. fr. (Ruth. R. to II, 15, v. infra. Hithpa. הִתְבַּקֵּר, Nithpa. נִתְבַּקֵּר 1) to be examined. Gen. R. s. 81 פנקסו נִתְבַּקְּרָה his account is examined (his sins visited); Tanḥ. Vayishlaḥ 8 מִתְבַּקֶּרֶת. Gen. R. s. 84, read with Yalk. Gen. 141 נתב׳ פנקסי my account 2) to be visited, attended to. Num. R. s. 18 as all sick persons מִתְבַּקְּרִין are tended (by physicians). Hif. הִבְקִיר (Y. Dial. for הִפְקִיר, v. פָּקַר; v. next w.) to give free, to resign ownership, to declare a property ownerless. Y.Ned.IV, 38d; Y.Peah V, beg.19b (read:) כיון שאדם מַבְקִיר דבר יצא מרשותו as soon as one declares a thing to be free, it has gone out of his control; Y.Dem.III, 23b bot. כיון שאדם מ׳ … ויצא … הבקירו הבקר as soon as one gives a thing free and it has left his possession, his act is valid; a. fr. (Ruth. R. to II, 15 מבקר, מבדר, prob. מבקיר; v. בָּדַר. Hof. הוּבְקַר to be declared free, to be free. Y.Peah VI, 19c top.Part. מוּבְקָר Ib. 19b bot. שדי מוּבְקֶרֶתוכ׳ (Tosef.Maasr.III, 11. הרי … מופ׳) my field shall be free for one day ; a. e. -
106 בָּקַר
בָּקַר(b. h.; √בק, v. בקע) to enter into, to clear, split; whence 1) (= בער) to eat up. Denom. בָּקָר (= בְּעִיר). 2) (= בער) to break forth, shine. Denom. בֹּקֶר. Pi. בִּיקֵּר, בִּקֵּר (b. h.) 1) to enter into, examine, search, distinguish (cmp. בִּין). Keth.106a מְבַקְּרֵי מומין those entrusted with the examination of sacrificial animals. Y.Bets. II, 61c top ובִיקְּרָן ממומן and had them examined (and declared free) from bodily defects. Ḥag.9b אין אומרים בַּקְּרוּוכ׳ we do not say, Examine ye a camel, a swine (i. e. only the deeds of distinguished persons are scrutinized); a. fr.Part. pass. מְבוּקָּר examined and found fit. Y.Ber.IV, 7b top טליים מְבוּקָּרִים lambs which passed examination. 2) to inquire after ones health, to visit the sick. Ned.IV, 4 (38b). ונכנס לְבַקְּרוֹ and comes to see him. Snh.68a; a. v. fr. (Ruth. R. to II, 15, v. infra. Hithpa. הִתְבַּקֵּר, Nithpa. נִתְבַּקֵּר 1) to be examined. Gen. R. s. 81 פנקסו נִתְבַּקְּרָה his account is examined (his sins visited); Tanḥ. Vayishlaḥ 8 מִתְבַּקֶּרֶת. Gen. R. s. 84, read with Yalk. Gen. 141 נתב׳ פנקסי my account 2) to be visited, attended to. Num. R. s. 18 as all sick persons מִתְבַּקְּרִין are tended (by physicians). Hif. הִבְקִיר (Y. Dial. for הִפְקִיר, v. פָּקַר; v. next w.) to give free, to resign ownership, to declare a property ownerless. Y.Ned.IV, 38d; Y.Peah V, beg.19b (read:) כיון שאדם מַבְקִיר דבר יצא מרשותו as soon as one declares a thing to be free, it has gone out of his control; Y.Dem.III, 23b bot. כיון שאדם מ׳ … ויצא … הבקירו הבקר as soon as one gives a thing free and it has left his possession, his act is valid; a. fr. (Ruth. R. to II, 15 מבקר, מבדר, prob. מבקיר; v. בָּדַר. Hof. הוּבְקַר to be declared free, to be free. Y.Peah VI, 19c top.Part. מוּבְקָר Ib. 19b bot. שדי מוּבְקֶרֶתוכ׳ (Tosef.Maasr.III, 11. הרי … מופ׳) my field shall be free for one day ; a. e.
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