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  • 41 Warren, Henry Ellis

    SUBJECT AREA: Horology
    [br]
    b. 21 May 1872 Boston, Massachusetts, USA
    d. 21 September 1957 Ashland, Massachusetts, USA
    [br]
    American electrical engineer who invented the mains electric synchronous clock.
    [br]
    Warren studied electrical engineering at the Boston Institute of Technology (later to become the Massachusetts Institute of Technology) and graduated in 1894. In 1912 he formed the Warren Electric Clock Company to make a battery-powered clock that he had patented a few years earlier. The name was changed to the Warren Telechron (time at a distance) Company after he had started to produce synchronous clocks.
    In 1840 Charles Wheatstone had produced an electric master clock that produced an alternating current with a frequency of one cycle per second and which was used to drive slave dials. This system was not successful, but when Ferranti introduced the first alternating current power generator at Deptford in 1895 Hope-Jones saw in it a means of distributing time. This did not materialize immediately because the power generators did not control the frequency of the current with sufficient accuracy, and a reliable motor whose speed was related to this frequency was not available. In 1916 Warren solved both problems: he produced a reliable self-starting synchronous electric motor and he also made a master clock which could be used at the power station to control accurately the frequency of the supply. Initially the power-generating companies were reluctant to support the synchronous clock because it imposed a liability to control the frequency of the supply and the gain was likely to be small because it was very frugal in its use of power. However, with the advent of the grid system, when several generators were connected together, it became imperative to control the frequency; it was realized that although the power consumption of individual clocks was small, collectively it could be significant as they ran continuously. By the end of the 1930s more than half the clocks sold in the USA were of the synchronous type. The Warren synchronous clock was introduced into Great Britain in 1927, following the setting up of a grid system by the Electricity Commission.
    [br]
    Principal Honours and Distinctions
    Franklin Institute John Price Wetherill Medal. American Institute of Electrical Engineers Lamme Medal.
    Bibliography
    The patents for the synchronous motor are US patent nos. 1,283,432, 1,283,433 and 1,283,435, and those for the master clock are 1,283,431, 1,409,502 and 1,502,493 of 29 October 1918 onwards.
    1919, "Utilising the time characteristics of alternating current", Transactions of the American Institute of Electrical Engineers 38:767–81 (Warren's first description of his system).
    Further Reading
    J.M.Anderson, 1991, "Henry Ellis Warren and his master clocks", National Association of Watch and Clock Collectors Bulletin 33:375–95 (provides biographical and technical details).
    DV

    Biographical history of technology > Warren, Henry Ellis

  • 42 Chapman, Frederik Henrik af

    SUBJECT AREA: Ports and shipping
    [br]
    b. 9 September 1721 Gothenburg, Sweden
    d. 19 August 1808 Karlskrona, Sweden
    [br]
    Swedish naval architect and shipbuilder; one of the foremost ship designers of all time.
    [br]
    Chapman was born on the west coast of Sweden and was the son of a British naval officer serving in the Swedish Navy. In 1738 he followed in his father's footsteps by joining the naval dockyards as a shipbuilding apprentice. Subsequent experience was gained in other shipyards and by two years (1741–3) in London. His assiduous note taking and study of British shipbuilding were noticed and he was offered appointments in England, but these were refused and he returned to Sweden in 1744 and for a while operated as a ship repairer in partnership with a man called Bagge. In 1749 he started out on his own. He began with a period of study in Stockholm and in London, where he worked for a while under Thomas Simpson, and then went on to France and the Netherlands. During his time in England he learned the art of copper etching, a skill that later stood him in good stead. After some years he was appointed Deputy Master Shipwright to the Swedish Navy, and in 1760 he became Master Shipwright at Sveaborg (now Suomenlinna), the fortress island of Helsinki. There Chapman excelled by designing the coastal defence or skerry fleet that to this day is accepted as beautiful and fit for purpose. He understood the limitations of ship design and throughout his life strove to improve shipbuilding by using the advances in mathematics and science that were then being made. His contribution to the rationalization of thought in ship theory cannot be overemphasized.
    In 1764 he became Chief Shipbuilder to the Swedish Navy, with particular responsibility for Karlskrona and for Stockholm. He assisted in the new rules for the classification of warships and later introduced standardization to the naval dockyards. He continued to rise in rank and reputation until his retirement in 1793, but to the end his judgement was sought on many matters concerning not only ship design but also the administration of the then powerful Swedish Navy.
    His most important bequest to his profession is the great book Architectura Navalis Mercatoria, first published in 1768. Later editions were larger and contained additional material. This volume remains one of the most significant works on shipbuilding.
    [br]
    Principal Honours and Distinctions
    Knighted 1772. Rear Admiral 1783, Vice-Admiral 1791.
    Bibliography
    1768, Architecture Navalis Mercatoria; 1975, pub. in English, trans. Adlard Coles. 1775, Tractat om Skepps-Buggeriet.
    Further Reading
    D.G.Harris, 1989, F.H.Chapman, the First Naval Architect and His Work, London: Conway (an excellent biography).
    FMW

    Biographical history of technology > Chapman, Frederik Henrik af

  • 43 Pattinson, Hugh Lee

    SUBJECT AREA: Metallurgy
    [br]
    b. 25 December 1796 Alston, Cumberland, England
    d. 11 November 1858 Scot's House, Gateshead, England
    [br]
    English inventor of a silver-extraction process.
    [br]
    Born into a Quaker family, he was educated at private schools; his studies included electricity and chemistry, with a bias towards metallurgy. Around 1821 Pattinson became Clerk and Assistant to Anthony Clapham, a soap-boiler of Newcastle upon Tyne. In 1825 he secured appointment as Assay Master to the lords of the manor of Alston. There he was able to pursue the subject of special interest to him, and in January 1829 he devised a method of separating silver from lead ore; however, he was prevented from developing it because of a lack of funds.
    Two years later he was appointed Manager of Wentworth Beaumont's lead-works. There he was able to continue his researches, which culminated in the patent of 1833 enshrining the invention by which he is best known: a new process for extracting silver from lead by skimming crystals of pure lead with a perforated ladle from the surface of the molten silver-bearing lead, contained in a succession of cast-iron pots. The molten metal was stirred as it cooled until one pot provided a metal containing 300 oz. of silver to the ton (8,370 g to the tonne). Until that time, it was unprofitable to extract silver from lead ores containing less than 8 oz. per ton (223 g per tonne), but the Pattinson process reduced that to 2–3 oz. (56–84 g per tonne), and it therefore won wide acceptance. Pattinson resigned his post and went into partnership to establish a chemical works near Gateshead. He was able to devise two further processes of importance, one an improved method of obtaining white lead and the other a new process for manufacturing magnesia alba, or basic carbonate of magnesium. Both processes were patented in 1841.
    Pattinson retired in 1858 and devoted himself to the study of astronomy, aided by a 7½ in. (19 cm) equatorial telescope that he had erected at his home at Scot's House.
    [br]
    Principal Honours and Distinctions
    Vice-President, British Association Chemical Section 1838. Fellow of the Geological Society, Royal Astronomical Society and Royal Society 1852.
    Bibliography
    Pattinson wrote eight scientific papers, mainly on mining, listed in Royal Society Catalogue of Scientific Papers, most of which appeared in the Philosophical
    Magazine.
    Further Reading
    J.Percy, Metallurgy (volume on lead): 121–44 (fully describes Pattinson's desilvering process).
    Lonsdale, 1873, Worthies of Cumberland, pp. 273–320 (contains details of his life). T.K.Derry and T.I.Williams, 1960, A Short History ofTechnology, Oxford: Oxford University Press.
    LRD

    Biographical history of technology > Pattinson, Hugh Lee

  • 44 Fairlie, Robert Francis

    [br]
    b. March 1831 Scotland
    d. 31 July 1885 Clapham, London, England
    [br]
    British engineer, designer of the double-bogie locomotive, advocate of narrow-gauge railways.
    [br]
    Fairlie worked on railways in Ireland and India, and established himself as a consulting engineer in London by the early 1860s. In 1864 he patented his design of locomotive: it was to be carried on two bogies and had a double boiler, the barrels extending in each direction from a central firebox. From smokeboxes at the outer ends, return tubes led to a single central chimney. At that time in British practice, locomotives of ever-increasing size were being carried on longer and longer rigid wheelbases, but often only one or two of their three or four pairs of wheels were powered. Bogies were little used and then only for carrying-wheels rather than driving-wheels: since their pivots were given no sideplay, they were of little value. Fairlie's design offered a powerful locomotive with a wheelbase which though long would be flexible; it would ride well and have all wheels driven and available for adhesion.
    The first five double Fairlie locomotives were built by James Cross \& Co. of St Helens during 1865–7. None was particularly successful: the single central chimney of the original design had been replaced by two chimneys, one at each end of the locomotive, but the single central firebox was retained, so that exhaust up one chimney tended to draw cold air down the other. In 1870 the next double Fairlie, Little Wonder, was built for the Festiniog Railway, on which C.E. Spooner was pioneering steam trains of very narrow gauge. The order had gone to George England, but the locomotive was completed by his successor in business, the Fairlie Engine \& Steam Carriage Company, in which Fairlie and George England's son were the principal partners. Little Wonder was given two inner fireboxes separated by a water space and proved outstandingly successful. The spectacle of this locomotive hauling immensely long trains up grade, through the Festiniog Railway's sinuous curves, was demonstrated before engineers from many parts of the world and had lasting effect. Fairlie himself became a great protagonist of narrow-gauge railways and influenced their construction in many countries.
    Towards the end of the 1860s, Fairlie was designing steam carriages or, as they would now be called, railcars, but only one was built before the death of George England Jr precipitated closure of the works in 1870. Fairlie's business became a design agency and his patent locomotives were built in large numbers under licence by many noted locomotive builders, for narrow, standard and broad gauges. Few operated in Britain, but many did in other lands; they were particularly successful in Mexico and Russia.
    Many Fairlie locomotives were fitted with the radial valve gear invented by Egide Walschaert; Fairlie's role in the universal adoption of this valve gear was instrumental, for he introduced it to Britain in 1877 and fitted it to locomotives for New Zealand, whence it eventually spread worldwide. Earlier, in 1869, the Great Southern \& Western Railway of Ireland had built in its works the first "single Fairlie", a 0–4–4 tank engine carried on two bogies but with only one of them powered. This type, too, became popular during the last part of the nineteenth century. In the USA it was built in quantity by William Mason of Mason Machine Works, Taunton, Massachusetts, in preference to the double-ended type.
    Double Fairlies may still be seen in operation on the Festiniog Railway; some of Fairlie's ideas were far ahead of their time, and modern diesel and electric locomotives are of the powered-bogie, double-ended type.
    [br]
    Bibliography
    1864, British patent no. 1,210 (Fairlie's master patent).
    1864, Locomotive Engines, What They Are and What They Ought to Be, London; reprinted 1969, Portmadoc: Festiniog Railway Co. (promoting his ideas for locomotives).
    1865, British patent no. 3,185 (single Fairlie).
    1867. British patent no. 3,221 (combined locomotive/carriage).
    1868. "Railways and their Management", Journal of the Society of Arts: 328. 1871. "On the Gauge for Railways of the Future", abstract in Report of the Fortieth
    Meeting of the British Association in 1870: 215. 1872. British patent no. 2,387 (taper boiler).
    1872, Railways or No Railways. "Narrow Gauge, Economy with Efficiency; or Broad Gauge, Costliness with Extravagance", London: Effingham Wilson; repr. 1990s Canton, Ohio: Railhead Publications (promoting the cause for narrow-gauge railways).
    Further Reading
    Fairlie and his patent locomotives are well described in: P.C.Dewhurst, 1962, "The Fairlie locomotive", Part 1, Transactions of the Newcomen Society 34; 1966, Part 2, Transactions 39.
    R.A.S.Abbott, 1970, The Fairlie Locomotive, Newton Abbot: David \& Charles.
    PJGR

    Biographical history of technology > Fairlie, Robert Francis

  • 45 Howe, Elias

    [br]
    b. 9 July 1819 Spencer, Massachusetts, USA
    d. 3 October 1867 Bridgeport, Connecticut, USA
    [br]
    American inventor of one of the earliest successful sewing machines.
    [br]
    Son of Elias Howe, a farmer, he acquired his mechanical knowledge in his father's mill. He left school at 12 years of age and was apprenticed for two years in a machine shop in Lowell, Massachusetts, and later to an instrument maker, Ari Davis in Boston, Massachusetts, where his master's services were much in demand by Harvard University. Fired by a desire to invent a sewing machine, he utilized the experience gained in Lowell to devise a shuttle carrying a lower thread and a needle carrying an upper thread to make lock-stitch in straight lines. His attempts were so rewarding that he left his job and was sustained first by his father and then by a partner. By 1845 he had built a machine that worked at 250 stitches per minute, and the following year he patented an improved machine. The invention of the sewing machine had an enormous impact on the textile industry, stimulating demand for cloth because making up garments became so much quicker. The sewing machine was one of the first mass-produced consumer durables and was essentially an American invention. William Thomas, a London manufacturer of shoes, umbrellas and corsets, secured the British rights and persuaded Howe to come to England to apply it to the making of shoes. This Howe did, but he quarrelled with Thomas after less than one year. He returned to America to face with his partner, G.W.Bliss, a bigger fight over his patent (see I.M. Singer), which was being widely infringed. Not until 1854 was the case settled in his favour. This litigation threatened the very existence of the new industry, but the Great Sewing Machine Combination, the first important patent-pooling arrangement in American history, changed all this. For a fee of $5 on every domestically-sold machine and $1 on every exported one, Howe contributed to the pool his patent of 1846 for a grooved eye-pointed needle used in conjunction with a lock-stitch-forming shuttle. Howe's patent was renewed in 1861; he organized and equipped a regiment during the Civil War with the royalties. When the war ended he founded the Howe Machine Company of Bridgeport, Connecticut.
    [br]
    Further Reading
    Obituary, 1867, Engineer 24.
    Obituary, 1867, Practical Magazine 5.
    F.G.Harrison, 1892–3, Biographical Sketches of Pre-eminent Americans (provides a good account of Howe's life and achievements).
    N.Salmon, 1863, History of the Sewing Machine from the Year 1750, with a biography of Elias Howe, London (tells the history of sewing machines).
    F.B.Jewell, 1975, Veteran Sewing Machines, A Collector's Guide, Newton Abbot (a more modern account of the history of sewing machines).
    C.Singer (ed.), 1958, A History of Technology, Vol. V, Oxford: Clarendon Press (covers the mechanical developments).
    D.A.Hounshell, 1984, From the American System to Mass Production 1800–1932. The
    Development of Manufacturing Technology in the United States, Baltimore (examines the role of the American sewing machine companies in the development of mass-production techniques).
    RLH

    Biographical history of technology > Howe, Elias

  • 46 Hipp, Matthäus

    [br]
    b. 25 October 1813 Blaubeuren, Germany
    d. 3 May 1893 Zurich, Switzerland
    [br]
    German inventor and entrepreneur who produced the first reliable electric clock.
    [br]
    After serving an apprenticeship with a clock-maker in Blaubeuren, Hipp worked for various clockmakers before setting up his own workshop in Reutlingen in 1840. In 1842 he made his first electric clock with an ingenious toggle mechanism for switching the current, although he claimed that the idea had occurred to him eight years earlier. The switching mechanism was the Achilles' heel of early electric clocks. It was usually operated by the pendulum and it presented the designer with a dilemma: if the switch made a firm contact it adversely affected the timekeeping, but if the contact was lightened it sometimes failed to operate due to dirt or corrosion on the contacts. The Hipp toggle switch overcame this problem by operating only when the amplitude of the pendulum dropped below a certain value. As this occurred infrequently, the contact pressure could be increased to provide reliable switching without adversely affecting the timekeeping. It is an indication of the effectiveness of the Hipp toggle that it was used in clocks for over one hundred years and was adopted by many other makers in addition to Hipp and his successor Favag. It was generally preferred for its reliability rather than its precision, although a regulator made in 1881 for the observatory at Neuchâtel performed creditably. This regulator was enclosed in an airtight case at low pressure, eliminating errors due to changes in barometric pressure. This practice later became standard for observatory regulators such as those of Riefler and Shortt. The ability of the Hipp toggle to provide more power when the clock was subjected to an increased load made it particularly suitable for use in turret clocks, whose hands were exposed to the vagaries of the weather. Hipp also improved the operation of slave dials, which were advanced periodically by an electrical impulse from a master clock. If the electrical contacts "chattered" and produced several impulses instead of a single sharp impulse, the slave dials would not indicate the correct time. Hipp solved this problem by producing master clocks which delivered impulses that alternated in polarity, and slave dials which only advanced when the polarity was changed in this way. Polarized impulses delivered every minute became the standard practice for slave dials used on the European continent. Hipp also improved Wheatstone's chronoscope, an instrument that was used for measuring very short intervals of time (such as those involved in ballistics).
    [br]
    Principal Honours and Distinctions
    Honorary doctorate, University of Zurich 1875.
    Further Reading
    Neue deutsche Biographie, 1972, Vol. 9, Berlin, pp. 199–200.
    "Hipp's sich selbst conrolirende Uhr", Dinglers polytechnisches Journal (1843), 88:258– 64 (the first description of the Hipp toggle).
    F.Hope-Jones, 1949, Electrical Timekeeping, 2nd edn, London, pp. 62–6, 97–8 (a modern description in English of the Hipp toggle and the slave dial).
    C.A.Aked, 1983, "Electrical precision", Antiquarian Horology 14:172–81 (describes the observatory clock at Neuchâtel).
    DV

    Biographical history of technology > Hipp, Matthäus

  • 47 Holtzapffel, John Jacob

    [br]
    b. June 1836 London, England
    d. 14 October 1897 Eastbourne, Sussex, England
    [br]
    English mechanical engineer and author of several volumes of Turning and Mechanical Manipulation.
    [br]
    John Jacob Holtzapffel was the second son of Charles Holtzapffel and was educated at King's College School, London, and at Cromwell House, Highgate. Following the death of his father in 1847 and of his elder brother, Charles, at the age of 10, he was called on at an early age to take part in the business of lathe-making and turning founded by his grandfather. He made many improvements to the lathe for ornamental turning, but he is now remembered chiefly for the continuation of his father's publication Turning and Mechanical Manipulation. J.J. Holtzapffel produced the fourth volume, on Plain Turning, in 1879, and the fifth, on Ornamental Turning, in 1884. In 1894 he revised and enlarged the third volume, but the intended sixth volume was never completed. J.J.Holtzapffel was admitted to the Turners' Company of London in 1862 and became Master in 1879. He was associated with the establishment of the Turners' Competition to encourage the art of turning and was one of the judges for many years. He was also an examiner for the City and Guilds of London Institute and the British Horological Institute. He was a member of the Society of Arts and a corresponding member of the Franklin Institute of Philadelphia. He was elected an Associate of the Institution of Civil Engineers in 1863 and became an Associate Member after reorganization of the classes of membership in 1878.
    [br]
    Principal Honours and Distinctions
    Master, Turners' Company of London 1879.
    Bibliography
    1879, Turning and Mechanical Manipulation, Vol. IV: Plain Turning, London; 1884, Vol. V: The Principles and Practice of Ornamental or Complex Turning, London; reprinted 1894; reprinted 1973, New York.
    RTS

    Biographical history of technology > Holtzapffel, John Jacob

  • 48 Lee, Revd William

    SUBJECT AREA: Textiles
    [br]
    d. c. 1615
    [br]
    English inventor of the first knitting machine, called the stocking frame.
    [br]
    It would seem that most of the stories about Lee's invention of the stocking frame cannot be verified by any contemporary evidence, and the first written accounts do not appear until the second half of the seventeenth century. The claim that he was Master of Arts from St John's College, Cambridge, was first made in 1607 but cannot be checked because the records have not survived. The date for the invention of the knitting machine as being 1589 was made at the same time, but again there is no supporting evidence. There is no evidence that Lee was Vicar of Calverton, nor that he was in Holy Orders at all. Likewise there is no evidence for the existence of the woman, whether she was girlfriend, fiancée or wife, who is said to have inspired the invention, and claims regarding the involvement of Queen Elizabeth I and her refusal to grant a patent because the stockings were wool and not silk are also without contemporary foundation. Yet the first known reference shows that Lee was the inventor of the knitting machine, for the partnership agreement between him and George Brooke dated 6 June 1600 states that "William Lee hath invented a very speedy manner of making works usually wrought by knitting needles as stockings, waistcoats and such like". This agreement was to last for twenty-two years, but terminated prematurely when Brooke was executed for high treason in 1603. Lee continued to try and exploit his invention, for in 1605 he described himself as "Master of Arts" when he petitioned the Court of Aldermen of the City of London as the first inventor of an engine to make silk stockings. In 1609 the Weavers' Company of London recorded Lee as "a weaver of silk stockings by engine". These petitions suggest that he was having difficulty in establishing his invention, which may be why in 1612 there is a record of him in Rouen, France, where he hoped to have better fortune. If he had been invited there by Henry IV, his hopes were dashed by the assassination of the king soon afterwards. He was to supply four knitting machines, and there is further evidence that he was in France in 1615, but it is thought that he died in that country soon afterwards.
    The machine Lee invented was probably the most complex of its day, partly because the need to use silk meant that the needles were very fine. Henson (1970) in 1831 took five pages in his book to describe knitting on a stocking frame which had over 2,066 pieces. To knit a row of stitches took eleven separate stages, and great care and watchfulness were required to ensure that all the loops were equal and regular. This shows how complex the machines were and points to Lee's great achievement in actually making one. The basic principles of its operation remained unaltered throughout its extraordinarily long life, and a few still remained in use commercially in the early 1990s.
    [br]
    Further Reading
    J.T.Millington and S.D.Chapman (eds), 1989, Four Centuries of Machine Knitting, Commemorating William Lee's Invention of the Stocking Frame in 1589, Leicester (N.Harte examines the surviving evidence for the life of William Lee and this must be considered as the most up-to-date biographical information).
    Dictionary of National Biography (this contains only the old stories).
    Earlier important books covering Lee's life and invention are G.Henson, 1970, History of the Framework Knitters, reprint, Newton Abbot (orig. pub. 1831); and W.Felkin, 1967, History of the Machine-wrought Hosiery and Lace Manufactures, reprint, Newton Abbot (orig. pub. 1867).
    M.Palmer, 1984, Framework Knitting, Aylesbury (a simple account of the mechanism of the stocking frame).
    R.L.Hills, "William Lee and his knitting machine", Journal of the Textile Institute 80(2) (a more detailed account).
    M.Grass and A.Grass, 1967, Stockings for a Queen. The Life of William Lee, the Elizabethan Inventor, London.
    RLH

    Biographical history of technology > Lee, Revd William

  • 49 Trevithick, Richard

    [br]
    b. 13 April 1771 Illogan, Cornwall, England
    d. 22 April 1833 Dartford, Kent, England
    [br]
    English engineer, pioneer of non-condensing steam-engines; designed and built the first locomotives.
    [br]
    Trevithick's father was a tin-mine manager, and Trevithick himself, after limited formal education, developed his immense engineering talent among local mining machinery and steam-engines and found employment as a mining engineer. Tall, strong and high-spirited, he was the eternal optimist.
    About 1797 it occurred to him that the separate condenser patent of James Watt could be avoided by employing "strong steam", that is steam at pressures substantially greater than atmospheric, to drive steam-engines: after use, steam could be exhausted to the atmosphere and the condenser eliminated. His first winding engine on this principle came into use in 1799, and subsequently such engines were widely used. To produce high-pressure steam, a stronger boiler was needed than the boilers then in use, in which the pressure vessel was mounted upon masonry above the fire: Trevithick designed the cylindrical boiler, with furnace tube within, from which the Cornish and later the Lancashire boilers evolved.
    Simultaneously he realized that high-pressure steam enabled a compact steam-engine/boiler unit to be built: typically, the Trevithick engine comprised a cylindrical boiler with return firetube, and a cylinder recessed into the boiler. No beam intervened between connecting rod and crank. A master patent was taken out.
    Such an engine was well suited to driving vehicles. Trevithick built his first steam-carriage in 1801, but after a few days' use it overturned on a rough Cornish road and was damaged beyond repair by fire. Nevertheless, it had been the first self-propelled vehicle successfully to carry passengers. His second steam-carriage was driven about the streets of London in 1803, even more successfully; however, it aroused no commercial interest. Meanwhile the Coalbrookdale Company had started to build a locomotive incorporating a Trevithick engine for its tramroads, though little is known of the outcome; however, Samuel Homfray's ironworks at Penydarren, South Wales, was already building engines to Trevithick's design, and in 1804 Trevithick built one there as a locomotive for the Penydarren Tramroad. In this, and in the London steam-carriage, exhaust steam was turned up the chimney to draw the fire. On 21 February the locomotive hauled five wagons with 10 tons of iron and seventy men for 9 miles (14 km): it was the first successful railway locomotive.
    Again, there was no commercial interest, although Trevithick now had nearly fifty stationary engines completed or being built to his design under licence. He experimented with one to power a barge on the Severn and used one to power a dredger on the Thames. He became Engineer to a project to drive a tunnel beneath the Thames at Rotherhithe and was only narrowly defeated, by quicksands. Trevithick then set up, in 1808, a circular tramroad track in London and upon it demonstrated to the admission-fee-paying public the locomotive Catch me who can, built to his design by John Hazledine and J.U. Rastrick.
    In 1809, by which date Trevithick had sold all his interest in the steam-engine patent, he and Robert Dickinson, in partnership, obtained a patent for iron tanks to hold liquid cargo in ships, replacing the wooden casks then used, and started to manufacture them. In 1810, however, he was taken seriously ill with typhus for six months and had to return to Cornwall, and early in 1811 the partners were bankrupt; Trevithick was discharged from bankruptcy only in 1814.
    In the meantime he continued as a steam engineer and produced a single-acting steam engine in which the cut-off could be varied to work the engine expansively by way of a three-way cock actuated by a cam. Then, in 1813, Trevithick was approached by a representative of a company set up to drain the rich but flooded silver-mines at Cerro de Pasco, Peru, at an altitude of 14,000 ft (4,300 m). Low-pressure steam engines, dependent largely upon atmospheric pressure, would not work at such an altitude, but Trevithick's high-pressure engines would. Nine engines and much other mining plant were built by Hazledine and Rastrick and despatched to Peru in 1814, and Trevithick himself followed two years later. However, the war of independence was taking place in Peru, then a Spanish colony, and no sooner had Trevithick, after immense difficulties, put everything in order at the mines then rebels arrived and broke up the machinery, for they saw the mines as a source of supply for the Spanish forces. It was only after innumerable further adventures, during which he encountered and was assisted financially by Robert Stephenson, that Trevithick eventually arrived home in Cornwall in 1827, penniless.
    He petitioned Parliament for a grant in recognition of his improvements to steam-engines and boilers, without success. He was as inventive as ever though: he proposed a hydraulic power transmission system; he was consulted over steam engines for land drainage in Holland; and he suggested a 1,000 ft (305 m) high tower of gilded cast iron to commemorate the Reform Act of 1832. While working on steam propulsion of ships in 1833, he caught pneumonia, from which he died.
    [br]
    Bibliography
    Trevithick took out fourteen patents, solely or in partnership, of which the most important are: 1802, Construction of Steam Engines, British patent no. 2,599. 1808, Stowing Ships' Cargoes, British patent no. 3,172.
    Further Reading
    H.W.Dickinson and A.Titley, 1934, Richard Trevithick. The Engineer and the Man, Cambridge; F.Trevithick, 1872, Life of Richard Trevithick, London (these two are the principal biographies).
    E.A.Forward, 1952, "Links in the history of the locomotive", The Engineer (22 February), 226 (considers the case for the Coalbrookdale locomotive of 1802).
    PJGR

    Biographical history of technology > Trevithick, Richard

  • 50 Ercker, Lazarus

    [br]
    b. c.1530 Annaberg, Saxony, Germany
    d. 1594 Prague, Bohemia
    [br]
    German chemist and metallurgist.
    [br]
    Educated at Wittenberg University during 1547–8, Ercker obtained in 1554, through one of his wife's relatives, the post of Assayer from the Elector Augustus at Dresden. From then on he took a succession of posts in mining and metallurgy. In 1555 he was Chief Consultant and Supervisor of all matters relating to mines, but for some unknown reason was demoted to Warden of the Mint at Annaberg. In 1558 he travelled to the Tyrol to study the mines in that region, and in the same year Prince Henry of Brunswick appointed him Warden, then Master, of the Mint at Goslar. Ercker later moved to Prague where, through another of his wife's relatives, he was appointed Control Tester at Kutna Hora. It was there that he wrote his best-known book, Die Beschreibung allfürnemisten mineralischen Ertz, which drew him to the attention of the Emperor Maximilian, who made him Courier for Mining and a clerk of the Supreme Court of Bohemia. The next Emperor, Rudolf II, a noted patron of science and alchemy, promoted Ercker to Chief Inspector of Mines and ennobled him in 1586 with the title Von Schreckenfels'. His second wife managed the mint at Kutna Hora and his two sons became assayers. These appointments gained him much experience of the extraction and refining of metals. This first bore fruit in a book on assaying, Probierbüchlein, printed in 1556, followed by one on minting, Münzbuch, in 1563. His main work, Die Beschreibung, was a systematic review of the methods of obtaining, refining and testing the alloys and minerals of gold, silver, copper, antimony, mercury and lead. The preparation of acids, salts and other compounds is also covered, and his apparatus is fully described and illustrated. Although Ercker used Agricola's De re metattica as a model, his own work was securely based on his practical experience. Die Beschreibung was the first manual of analytical and metallurgical chemistry and influenced later writers such as Glauber on assaying. After the first edition in Prague came four further editions in Frankfurt-am-Main.
    [br]
    Bibliography
    Die Beschreibung allfürnemisten mineralischen Ertz, Prague. 1556, Probierbuchlein.
    1563, Munzbuch.
    Further Reading
    P.R.Beierlein, 1955, Lazarus Ercker, Bergmann, Hüttenmann und Münzmeister im 16. Jahrhundert, Berlin (the best biography, although the chemical details are incomplete).
    J.R.Partington, 1961, History of Chemistry, London, Vol. II, pp. 104–7.
    E.V.Armstrong and H.Lukens, 1939, "Lazarus Ercker and his Probierbuch", J.Chem. Ed.
    16: 553–62.
    LRD

    Biographical history of technology > Ercker, Lazarus

  • 51 Lithgow, James

    SUBJECT AREA: Ports and shipping
    [br]
    b. 27 January 1883 Port Glasgow, Renfrewshire, Scotland
    d. 23 February 1952 Langbank, Renfrewshire, Scotland
    [br]
    Scottish shipbuilder; creator of one of the twentieth century's leading industrial organizations.
    [br]
    Lithgow attended Glasgow Academy and then spent a year in Paris. In 1901 he commenced a shipyard apprenticeship with Russell \& Co., where his father, William Lithgow, was sole proprietor. For years Russell's had topped the Clyde tonnage output and more than once had been the world's leading yard. Along with his brother Henry, Lithgow in 1908 was appointed a director, and in a few years he was Chairman and the yard was renamed Lithgows Ltd. By the outbreak of the First World War the Lithgow brothers were recognized as good shipbuilders and astute businessmen. In 1914 he joined the Royal Artillery; he rose to the rank of major and served with distinction, but his skills in administration were recognized and he was recalled home to become Director of Merchant Shipbuilding when British shipping losses due to submarine attack became critical. This appointment set a pattern, with public duties becoming predominant and the day-to-day shipyard business being organized by his brother. During the interwar years, Lithgow served on many councils designed to generate work and expand British commercial interests. His public appointments were legion, but none was as controversial as his directorship of National Shipbuilders Security Ltd, formed to purchase and "sterilize" inefficient shipyards that were hindering recovery from the Depression. To this day opinions are divided on this issue, but it is beyond doubt that Lithgow believed in the task in hand and served unstintingly. During the Second World War he was Controller of Merchant Shipbuilding and Repairs and was one of the few civilians to be on the Board of Admiralty. On the cessation of hostilities, Lithgow devoted time to research boards and to the expansion of the Lithgow Group, which now included the massive Fairfield Shipyard as well as steel, marine engineering and other companies.
    Throughout his life Lithgow worked for the Territorial Army, but he was also a devoted member of the Church of Scotland. He gave practical support to the lona Community, no doubt influenced by unbounded love of the West Highlands and Islands of Scotland.
    [br]
    Principal Honours and Distinctions
    Military Cross and mentioned in dispatches during the First World War. Baronet 1925. Grand Cross of the Order of the British Empire 1945. Commander of the Order of the Orange-Nassau (the Netherlands). CB 1947. Served as the employers' representative on the League of Nations International Labour Conference in the 1930s. President, British Iron and Steel Cofederation 1943.
    Further Reading
    J.M.Reid, 1964, James Lithgow, Master of Work, London: Hutchinson.
    FMW

    Biographical history of technology > Lithgow, James

  • 52 Morland, Sir Samuel

    [br]
    b. 1625 Sulhampton, near Reading, Berkshire, England
    d. 26 December 1695 Hammersmith, near London, England
    [br]
    English mathematician and inventor.
    [br]
    Morland was one of several sons of the Revd Thomas Morland and was probably initially educated by his father. He went to Winchester School from 1639 to 1644 and then to Magdalene College, Cambridge, where he graduated BA in 1648 and MA in 1652. He was appointed a tutor there in 1650. In 1653 he went to Sweden in the ambassadorial staff of Bulstrode Whitelocke and remained there until 1654. In that year he was appointed Clerk to Mr Secretary Thurloe, and in 1655 he was accredited by Oliver Cromwell to the Duke of Savoy to appeal for the Waldenses. In 1657 he married Susanne de Milleville of Boissy, France, with whom he had three children. In 1660 he went over to the Royalists, meeting King Charles at Breda, Holland. On 20 May, the King knighted him, creating him baron, for revealing a conspiracy against the king's life. He was also granted a pension of£500 per year. In 1661, at the age of 36, he decided to devote himself to mathematics and invention. He devised a mechanical calculator, probably based on the pattern of Blaise Pascal, for adding and subtracting: this was followed in 1666 by one for multiplying and other functions. A Perpetual Calendar or Almanack followed; he toyed with the idea of a "gunpowder engine" for raising water; he developed a range of speaking trum-pets, said to have a range of 1/2 to 1 mile (0.8–1.6 km) or more; also iron stoves for use on board ships, and improvements to barometers.
    By 1675 he had started selling a range of pumps for private houses, for mines or deep wells, for ships, for emptying ponds or draining low ground as well as to quench fire or wet the sails of ships. The pumps cost from £5 to £63, and the great novelty was that he used, instead of packing around the cylinder sealing against the bore of the cylinder, a neck-gland or seal around the outside diameter of the piston or piston-rod. This revolutionary step avoided the necessity of accurately boring the cylinder, replacing it with the need to machine accurately the outside diameter of the piston or rod, a much easier operation. Twenty-seven variations of size and materials were included in his schedule of'Pumps or Water Engines of Isaac Thompson of Great Russel Street', the maker of Morland's design. In 1681 the King made him "Magister mechanicorum", or Master of Machines. In that year he sailed for France to advise Louis XIV on the waterworks being built at Marly to supply the Palace of Versailles. About this time he had shown King Charles plans for a pumping engine "worked by fire alone". He petitioned for a patent for this, but did not pursue the matter.
    In 1692 he went blind. In all, he married five times. While working for Cromwell he became an expert in ciphers, in opening sealed letters and in their rapid copying.
    [br]
    Principal Honours and Distinctions
    Knighted 1660.
    Bibliography
    Further Reading
    H.W.Dickinson, 1970, Sir Samuel Morland: Diplomat and Inventor, Cambridge: Newcomen Society/Heffers.
    IMcN

    Biographical history of technology > Morland, Sir Samuel

  • 53 Villard de Honnecourt

    [br]
    b. c. 1200 Honnecourt-sur-Escaut, near Cambrai, France
    d. mid-13th century (?) France
    [br]
    French architect-engineer.
    [br]
    Villard was one of the thirteenth-century architect-engineers who were responsible for the design and construction of the great Gothic cathedrals and other churches of the time. Their responsibilities covered all aspects of the work, including (in the spirit of the Roman architect Vitruvius) the invention and construction of mechanical devices. In their time, these men were highly esteemed and richly rewarded, although few of the inscriptions paying tribute to their achievements have survived. Villard stands out among them because a substantial part of his sketchbook has survived, in the form of thirty-three parchment sheets of drawings and notes, now kept in the Bibliothèque Nationale in Paris. Villard's professional career lasted roughly from 1225 to 1250. As a boy, he went to work on the building of the Cistercian monastery at Vaucelles, not far from Honnecourt, and afterwards he was apprenticed to the masons' lodge at Cambrai Cathedral, where he began copying the drawings and layouts on the tracing-house floor. All his drawings are, therefore, of the plans, elevations and sections of cathedrals. These buildings have long since been destroyed, but his drawings, perhaps among his earliest, bear witness to their architecture. He travelled widely in France and recorded features of the great works at Reims, Laon and Chartres. These include the complex system of passageways built into the fabric of a great cathedral; Villard comments that one of their purposes was "to allow circulation in case of fire".
    Villard was invited to Hungary and reached there c. 1235. He may have been responsible for the edifice dedicated to St Elizabeth of Hungary, canonized in 1235, at Kassa (now Košice, Slovakia). Villard probably returned to France c. 1240, at least before the Tartar invasion of Hungary in 1241.
    His sketchbook, which dates to c. 1235, stands as a memorial to Villard's skill as a draughtsman, a student of perspective and a mechanical engineer. He took his sketchbook with him on his travels, and used ideas from it in his work abroad. It contains architectural designs, geometrical constructions for use in building, surveying exercises and drawings for various kinds of mechanical devices, for civil or military use. He was transmitting details from the highly developed French Gothic masons to the relatively underdeveloped eastern countries. The notebooks were annotated for the use of pupils and other master masons, and the notes on geometry were obviously intended for pupils. The prize examples are the pages in the book, clearly Villard's own work, related to mechanical devices. Whilst he, like many others of the period and after, played with designs for perpetual-motion machines, he concentrated on useful devices. These included the first Western representation of a perpetualmotion machine, which at least displays a concern to derive a source of energy: this was a water-powered sawmill, with automatic feed of the timber into the mill. This has been described as the first industrial automatic power-machine to involve two motions, for it not only converts the rotary motion of the water-wheel to the reciprocating motion of the saw, but incorporates a means of keeping the log pressed against the saw. His other designs included water-wheels, watermills, the Archimedean screw and other curious devices.
    [br]
    Bibliography
    Of several facsimile reprints with notes there are Album de Villard de Honnecourt, 1858, ed. J.B.Lassus, Paris (repr. 1968, Paris: Laget), and The Sketchbook of Villard de Honnecourt, 1959, ed. T.Bowie, Bloomington: Indiana University Press.
    Further Reading
    J.Gimpel, 1977, "Villard de Honnecourt: architect and engineer", The Medieval Machine, London: Victor Gollancz, ch. 6, pp. 114–46.
    ——1988, The Medieval Machine, the Industrial Revolution of the Middle Ages, London.
    R.Pernord, J.Gimpel and R.Delatouche, 1986, Le Moyen age pour quoi fayre, Paris.
    KM / LRD

    Biographical history of technology > Villard de Honnecourt

  • 54 Watts, Philip

    SUBJECT AREA: Ports and shipping
    [br]
    b. 30 May 1846 Portsmouth, England
    d. 15 March 1926 probably London, England
    [br]
    English naval architect, shipbuilding manager and ultimately Director of Naval Construction.
    [br]
    Since he had a long family connection with the naval base at Portsmouth, it is not surprising that Watts started to serve his apprenticeship there in 1860. He was singled out for advanced training and then in 1866 was one of three young men selected to attend the Royal School of Naval Architecture at South Kensington in London. On completing his training he joined the technical staff, then had a period as a ship overseer before going to assist William Froude for two years, an arrangement which led to a close friendship between Watts and the two Froudes. Some interesting tasks followed: the calculations for HM Armoured Ram Polyphemus; the setting up of a "calculating" section within the Admiralty; and then work as a constructor at Chatham Dockyard. In 1885 the first major change of direction took place: Watts resigned from naval service to take the post of General Manager of the Elswick shipyard of Sir W.G.Armstrong. This was a wonderful opportunity for an enthusiastic and highly qualified man, and Watts rose to the challenge. Elswick produced some of the finest warships at the end of the nineteenth century and its cruisers, such as the Esmeralda of the Chilean Navy, had a legendary name.
    In 1902 he was recalled to the Navy to succeed Sir William White as Director of Naval Construction (DNC). This was one of the most exciting times ever in warship design and it was during Watts's tenure of the post that the Dreadnought class of battleship was produced, the submarine service was developed and the destroyer fleet reached high levels of performance. It has been said that Watts's distinct achievements as DNC were greater armament per ton displacement, higher speeds and better manoeuvring, greater protection and, almost as important, elegance of appearance. Watt retired in 1912 but remained a consultant to the Admiralty until 1916, and then joined the board of Armstrong Whitworth, on which he served until his death.
    [br]
    Principal Honours and Distinctions
    Knighted 1905. FRS 1900. Chairman, Board of Trade's Load Line Committee 1913. Vice-President, Society for Nautical Research (upon its founding), and finally Chairman for the Victory preservation and technical committee. Honorary Vice-President, Institution of Naval Architects 1916. Master of the Worshipful Company of Shipwrights 1915.
    Bibliography
    Watts produced many high-quality technical papers, including ten papers to the Institution of Naval Architects.
    FMW

    Biographical history of technology > Watts, Philip

  • 55 Worsdell, Thomas William

    [br]
    b. 14 January 1838 Liverpool, England
    d. 28 June 1916 Arnside, Westmorland, England
    [br]
    English locomotive engineer, pioneer of the use of two-cylinder compound locomotives in Britain.
    [br]
    T.W.Worsdell was the son of Nathaniel Worsdell. After varied training, which included some time in the drawing office of the London \& North Western Railway's Crewe Works, he moved to the Pennsylvania Railroad, USA, in 1865 and shortly became Master Mechanic in charge of its locomotive workshops in Altoona. In 1871, however, he accepted an invitation from F.W. Webb to return to Crewe as Works Manager: it was while he was there that Webb produced his first compound locomotive by rebuilding an earlier simple.
    In 1881 T.W.Worsdell was appointed Locomotive Superintendent of the Great Eastern Railway. Working with August von Borries, who was Chief Mechanical Engineer of the Hannover Division of the Prussian State Railways, he developed a two-cylinder compound derived from the work of J.T.A. Mallet. Von Borries produced his compound 2–4–0 in 1880, Worsdell followed with a 4–4–0 in 1884; the restricted British loading gauge necessitated substitution of inside cylinders for the outside cylinders used by von Borries, particularly the large low-pressure one. T.W.Worsdell's compounds were on the whole successful and many were built, particularly on the North Eastern Railway, to which he moved as Locomotive Superintendent in 1885. There, in 1888, he started to build, uniquely, two-cylinder compound "single driver" 4–2–2s: one of them was recorded as reaching 86 mph (138 km/h). He also equipped his locomotives with a large side-window cab, which gave enginemen more protection from the elements than was usual in Britain at that time and was no doubt appreciated in the harsh winter climate of northeast England. The idea for the cab probably originated from his American experience. When T.W.Worsdell retired from the North Eastern Railway in 1890 he was succeeded by his younger brother, Wilson Worsdell, who in 1899 introduced the first 4– 6–0s intended for passenger trains in England.
    [br]
    Further Reading
    C.Hamilton Ellis, 1958, Twenty Locomotive Men, Shepperton: Ian Allan, Ch. 15 (biography).
    E.L.Ahrons, 1927, The British Steam Railway Locomotive 1825–1925, London: The Locomotive Publishing Co., pp. 253–5 (describes his locomotives). C.Fryer, 1990, Experiments with Steam, Patrick Stephens, Ch. 7.
    PJGR

    Biographical history of technology > Worsdell, Thomas William

  • 56 Wren, Sir Christopher

    [br]
    b. 20 October 1632 East Knoyle, Wiltshire, England
    d. 25 February 1723 London, England
    [br]
    English architect whose background in scientific research and achievement enhanced his handling of many near-intractable architectural problems.
    [br]
    Born into a High Church and Royalist family, the young Wren early showed outstanding intellectual ability and at Oxford in 1654 was described as "that miracle of a youth". Educated at Westminster School, he went up to Oxford, where he graduated at the age of 19 and obtained his master's degree two years later. From this time onwards his interests were in science, primarily astronomy but also physics, engineering and meteorology. While still at college he developed theories about and experimentally solved some fifty varied problems. At the age of 25 Wren was appointed to the Chair of Astronomy at Gresham College in London, but he soon returned to Oxford as Savilian Professor of Astronomy there. At the same time he became one of the founder members of the Society of Experimental Philosophy at Oxford, which was awarded its Royal Charter soon after the Restoration of 1660; Wren, together with such men as Isaac Newton, Robert Hooke, John Evelyn and Robert Boyle, then found himself a member of the Royal Society.
    Wren's architectural career began with the classical chapel that he built, at the request of his uncle, the Bishop of Ely, for Pembroke College, Cambridge (1663). From this time onwards, until he died at the age of 91, he was fully occupied with a wide and taxing variety of architectural problems which he faced in the execution of all the great building schemes of the day. His scientific background and inventive mind stood him in good stead in solving such difficulties with an often unusual approach and concept. Nowhere was this more apparent than in his rebuilding of fifty-one churches in the City of London after the Great Fire, in the construction of the new St Paul's Cathedral and in the grand layout of the Royal Hospital at Greenwich.
    The first instance of Wren's approach to constructional problems was in his building of the Sheldonian Theatre in Oxford (1664–9). He based his design upon that of the Roman Theatre of Marcellus (13–11 BC), which he had studied from drawings in Serlio's book of architecture. Wren's reputation as an architect was greatly enhanced by his solution to the roofing problem here. The original theatre in Rome, like all Roman-theatres, was a circular building open to the sky; this would be unsuitable in the climate of Oxford and Wren wished to cover the English counterpart without using supporting columns, which would have obscured the view of the stage. He solved this difficulty mathematically, with the aid of his colleague Dr Wallis, the Professor of Geometry, by means of a timber-trussed roof supporting a painted ceiling which represented the open sky.
    The City of London's churches were rebuilt over a period of nearly fifty years; the first to be completed and reopened was St Mary-at-Hill in 1676, and the last St Michael Cornhill in 1722, when Wren was 89. They had to be rebuilt upon the original medieval sites and they illustrate, perhaps more clearly than any other examples of Wren's work, the fertility of his imagination and his ability to solve the most intractable problems of site, limitation of space and variation in style and material. None of the churches is like any other. Of the varied sites, few are level or possess right-angled corners or parallel sides of equal length, and nearly all were hedged in by other, often larger, buildings. Nowhere is his versatility and inventiveness shown more clearly than in his designs for the steeples. There was no English precedent for a classical steeple, though he did draw upon the Dutch examples of the 1630s, because the London examples had been medieval, therefore Roman Catholic and Gothic, churches. Many of Wren's steeples are, therefore, Gothic steeples in classical dress, but many were of the greatest originality and delicate beauty: for example, St Mary-le-Bow in Cheapside; the "wedding cake" St Bride in Fleet Street; and the temple diminuendo concept of Christ Church in Newgate Street.
    In St Paul's Cathedral Wren showed his ingenuity in adapting the incongruous Royal Warrant Design of 1675. Among his gradual and successful amendments were the intriguing upper lighting of his two-storey choir and the supporting of the lantern by a brick cone inserted between the inner and outer dome shells. The layout of the Royal Hospital at Greenwich illustrates Wren's qualities as an overall large-scale planner and designer. His terms of reference insisted upon the incorporation of the earlier existing Queen's House, erected by Inigo Jones, and of John Webb's King Charles II block. The Queen's House, in particular, created a difficult problem as its smaller size rendered it out of scale with the newer structures. Wren's solution was to make it the focal centre of a great vista between the main flanking larger buildings; this was a masterstroke.
    [br]
    Principal Honours and Distinctions
    Knighted 1673. President, Royal Society 1681–3. Member of Parliament 1685–7 and 1701–2. Surveyor, Greenwich Hospital 1696. Surveyor, Westminster Abbey 1699.
    Surveyor-General 1669–1712.
    Further Reading
    R.Dutton, 1951, The Age of Wren, Batsford.
    M.Briggs, 1953, Wren the Incomparable, Allen \& Unwin. M.Whinney, 1971, Wren, Thames \& Hudson.
    K.Downes, 1971, Christopher Wren, Allen Lane.
    G.Beard, 1982, The Work of Sir Christopher Wren, Bartholomew.
    DY

    Biographical history of technology > Wren, Sir Christopher

  • 57 Bain, Alexander

    [br]
    b. October 1810 Watten, Scotland
    d. 2 January 1877 Kirkintilloch, Scotland
    [br]
    Scottish inventor and entrepreneur who laid the foundations of electrical horology and designed an electromagnetic means of transmitting images (facsimile).
    [br]
    Alexander Bain was born into a crofting family in a remote part of Scotland. He was apprenticed to a watchmaker in Wick and during that time he was strongly influenced by a lecture on "Heat, sound and electricity" that he heard in nearby Thurso. This lecture induced him to take up a position in Clerkenwell in London, working as a journeyman clockmaker, where he was able to further his knowledge of electricity by attending lectures at the Adelaide Gallery and the Polytechnic Institution. His thoughts naturally turned to the application of electricity to clockmaking, and despite a bitter dispute with Charles Wheatstone over priority he was granted the first British patent for an electric clock. This patent, taken out on 11 January 1841, described a mechanism for an electric clock, in which an oscillating component of the clock operated a mechanical switch that initiated an electromagnetic pulse to maintain the regular, periodic motion. This principle was used in his master clock, produced in 1845. On 12 December of the same year, he patented a means of using electricity to control the operation of steam railway engines via a steam-valve. His earliest patent was particularly far-sighted and anticipated most of the developments in electrical horology that occurred during the nineteenth century. He proposed the use of electricity not only to drive clocks but also to distribute time over a distance by correcting the hands of mechanical clocks, synchronizing pendulums and using slave dials (here he was anticipated by Steinheil). However, he was less successful in putting these ideas into practice, and his electric clocks proved to be unreliable. Early electric clocks had two weaknesses: the battery; and the switching mechanism that fed the current to the electromagnets. Bain's earth battery, patented in 1843, overcame the first defect by providing a reasonably constant current to drive his clocks, but unlike Hipp he failed to produce a reliable switch.
    The application of Bain's numerous patents for electric telegraphy was more successful, and he derived most of his income from these. They included a patent of 12 December 1843 for a form of fax machine, a chemical telegraph that could be used for the transmission of text and of images (facsimile). At the receiver, signals were passed through a moving band of paper impregnated with a solution of ammonium nitrate and potassium ferrocyanide. For text, Morse code signals were used, and because the system could respond to signals faster than those generated by hand, perforated paper tape was used to transmit the messages; in a trial between Paris and Lille, 282 words were transmitted in less than one minute. In 1865 the Abbé Caselli, a French engineer, introduced a commercial fax service between Paris and Lyons, based on Bain's device. Bain also used the idea of perforated tape to operate musical wind instruments automatically. Bain squandered a great deal of money on litigation, initially with Wheatstone and then with Morse in the USA. Although his inventions were acknowledged, Bain appears to have received no honours, but when towards the end of his life he fell upon hard times, influential persons in 1873 secured for him a Civil List Pension of £80 per annum and the Royal Society gave him £150.
    [br]
    Bibliography
    1841, British patent no. 8,783; 1843, British patent no. 9,745; 1845, British patent no.
    10,838; 1847, British patent no. 11,584; 1852, British patent no. 14,146 (all for electric clocks).
    1852, A Short History of the Electric Clocks with Explanation of Their Principles and
    Mechanism and Instruction for Their Management and Regulation, London; reprinted 1973, introd. W.Hackmann, London: Turner \& Devereux (as the title implies, this pamphlet was probably intended for the purchasers of his clocks).
    Further Reading
    The best account of Bain's life and work is in papers by C.A.Aked in Antiquarian Horology: "Electricity, magnetism and clocks" (1971) 7: 398–415; "Alexander Bain, the father of electrical horology" (1974) 9:51–63; "An early electric turret clock" (1975) 7:428–42. These papers were reprinted together (1976) in A Conspectus of Electrical Timekeeping, Monograph No. 12, Antiquarian Horological Society: Tilehurst.
    J.Finlaison, 1834, An Account of Some Remarkable Applications of the Electric Fluid to the Useful Arts by Alexander Bain, London (a contemporary account between Wheatstone and Bain over the invention of the electric clock).
    J.Munro, 1891, Heroes of the Telegraph, Religious Tract Society.
    J.Malster \& M.J.Bowden, 1976, "Facsimile. A Review", Radio \&Electronic Engineer 46:55.
    D.J.Weaver, 1982, Electrical Clocks and Watches, Newnes.
    T.Hunkin, 1993, "Just give me the fax", New Scientist (13 February):33–7 (provides details of Bain's and later fax devices).
    DV / KF

    Biographical history of technology > Bain, Alexander

  • 58 Barlow, Peter

    SUBJECT AREA: Ports and shipping
    [br]
    b. 13 October 1776 Norwich, England
    d. 1 March 1862 Kent, England
    [br]
    English mathematician, physicist and optician.
    [br]
    Barlow had little formal academic education, but by his own efforts rectified this deficiency. His contributions to various periodicals ensured that he became recognized as a man of considerable scientific understanding. In 1801, through competitive examination, he became Assistant Mathematics Master at the Royal Military Academy, Woolwich, and some years later was promoted to Professor. He resigned from this post in 1847, but retained full salary in recognition of his many public services.
    He is remembered for several notable achievements, and for some experiments designed to overcome problems such as the deviation of compasses in iron ships. Here, he proposed the use of small iron plates designed to overcome other attractions: these were used by both the British and Russian navies. Optical experiments commenced around 1827 and in later years he carried out tests to optimize the size and shape of many parts used in the railways that were spreading throughout Britain and elsewhere at that time.
    In 1814 he published mathematical tables of squares, cubes, square roots, cube roots and reciprocals of all integers from 1 to 10,000. This volume was of great value in ship design and other engineering processes where heavy numerical effort is required; it was reprinted many times, the last being in 1965 when it had been all but superseded by the calculator and the computer. In the preface to the original edition, Barlow wrote, "the only motive which prompted me to engage in this unprofitable task was the utility that I conceived might result from my labour… if I have succeeded in facilitating abstruse arithmetical calculations, then I have obtained the object in view."
    [br]
    Principal Honours and Distinctions
    FRS 1823; Copley Medal (for discoveries in magnetism) 1825. Honorary Member, Institution of Civil Engineers 1820.
    Bibliography
    1811, An Elementary Investigation of the Theory of Numbers.
    1814, Barlow's Tables (these have continued to be published until recently, one edition being in 1965 (London: Spon); later editions have taken the integers up to 12,500).
    1817, Essay on the Strength of Timber and Other Materials.
    Further Reading
    Dictionary of National Biography.
    FMW

    Biographical history of technology > Barlow, Peter

  • 59 Biles, Sir John Harvard

    SUBJECT AREA: Ports and shipping
    [br]
    b. 1854 Portsmouth, England
    d. 27 October 1933 Scotland (?)
    [br]
    English naval architect, academic and successful consultant in the years when British shipbuilding was at its peak.
    [br]
    At the conclusion of his apprenticeship at the Royal Dockyard, Portsmouth, Biles entered the Royal School of Naval Architecture, South Kensington, London; as it was absorbed by the Royal Naval College, he graduated from Greenwich to the Naval Construction Branch, first at Pembroke and later at the Admiralty. From the outset of his professional career it was apparent that he had the intellectual qualities that would enable him to oversee the greatest changes in ship design of all time. He was one of the earliest proponents of the revolutionary work of the hydrodynamicist William Froude.
    In 1880 Biles turned to the merchant sector, taking the post of Naval Architect to J. \& G. Thomson (later John Brown \& Co.). Using Froude's Law of Comparisons he was able to design the record-breaking City of Paris of 1887, the ship that started the fabled succession of fast and safe Clyde bank-built North Atlantic liners. For a short spell, before returning to Scotland, Biles worked in Southampton. In 1891 Biles accepted the Chair of Naval Architecture at the University of Glasgow. Working from the campus at Gilmorehill, he was to make the University (the oldest school of engineering in the English-speaking world) renowned in naval architecture. His workload was legendary, but despite this he was admired as an excellent lecturer with cheerful ways which inspired devotion to the Department and the University. During the thirty years of his incumbency of the Chair, he served on most of the important government and international shipping committees, including those that recommended the design of HMS Dreadnought, the ordering of the Cunarders Lusitania and Mauretania and the lifesaving improvements following the Titanic disaster. An enquiry into the strength of destroyer hulls followed the loss of HMS Cobra and Viper, and he published the report on advanced experimental work carried out on HMS Wolf by his undergraduates.
    In 1906 he became Consultant Naval Architect to the India Office, having already set up his own consultancy organization, which exists today as Sir J.H.Biles and Partners. His writing was prolific, with over twenty-five papers to professional institutions, sundry articles and a two-volume textbook.
    [br]
    Principal Honours and Distinctions
    Knighted 1913. Knight Commander of the Indian Empire 1922. Master of the Worshipful Company of Shipwrights 1904.
    Bibliography
    1905, "The strength of ships with special reference to experiments and calculations made upon HMS Wolf", Transactions of the Institution of Naval Architects.
    1911, The Design and Construction of Ships, London: Griffin.
    Further Reading
    C.A.Oakley, 1973, History of a Facuity, Glasgow University.
    FMW

    Biographical history of technology > Biles, Sir John Harvard

  • 60 Burrell, William

    SUBJECT AREA: Ports and shipping
    [br]
    b. c.1570 England
    d. 1630 near Huntingdon, England
    [br]
    English shipbuilder and Chief Shipwright to the East India Company.
    [br]
    Born into comfortable circumstances, Burrell chose ship construction as his career. Ability aided by financial influence helped professional advancement, and by his early thirties he possessed a shipyard at Ratcliffe on the River Thames. Ship design was then unscientific, shrouded in mystique, and it required patience and perseverance to penetrate the conventions of the craft.
    From the 1600s Burrell had been investing in the East India Company. In 1607 the Company decided to build ships in their own right, and Burrell was appointed as the first Master Shipwright, a post he held for nearly twenty years. The first ship, Trade's Increase, of 1,000-tons burthen, was the largest ship built in England until the eighteenth century, but following a mishap at launch and the ship's subsequent loss on its maiden voyage, the Company reassessed its policy and built smaller ships. Burrell's foresight can be gauged by his involvement in two private commercial undertakings in Ireland; one to create oak forests for shipbuilding, and the other to set up a small ironworks. In 1618 a Royal Commission was appointed to enquire into the poor condition of the Navy, and with the help of Burrell it was ruled that the main problems were neglect and corruption. With his name being known and his good record of production, the Royal Navy ordered no fewer than ten warships from Burrell in the four-year period from 1619 to 1623. With experience in the military and commercial sectors, Burrell can be regarded as an all-round and expert shipbuilder of the Stuart period. He used intuition at a time when there were no scientific rules and little reliable empiric guidance on ship design.
    [br]
    Principal Honours and Distinctions
    First Warden of the Shipwrights' Company after its new Charter of 1612.
    Further Reading
    A.P.McGowan, 1978, "William Burrell (c. 1570–1630). A forgotten Stuart shipwright", Ingrid and other Studies (National Maritime Museum Monograph No. 36). W.Abell, 1948, The Shipwright's Trade, Cambridge.
    FMW

    Biographical history of technology > Burrell, William

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