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  • 101 Donkin, Bryan III

    [br]
    b. 29 August 1835 London, England
    d. 4 March 1902 Brussels, Belgium
    [br]
    English mechanical engineer.
    [br]
    Bryan Donkin was the eldest son of John Donkin (1802–54) and grandson of Bryan Donkin I (1768–1855). He was educated at University College, London, and at the Ecole Centrale des Arts et Métiers in Paris, and then served an apprenticeship in the firm established by his grandfather. He assisted his uncle, Bryan Donkin II (1809–93), in setting up paper mills at St Petersburg. He became a partner in the Donkin firm in 1868 and Chairman in 1889, and retained this position after the amalgamation with Clench \& Co. of Chesterfield in 1900. Bryan Donkin was one of the first engineers to carry out scientific tests on steam engines and boilers, the results of his experiments being reported in many papers to the engineering institutions. In the 1890s his interests extended to the internal-combustion engine and he translated Rudolf Diesel's book Theory and Construction of a Rational Heat Motor. He was a frequent contributor to the weekly journal The Engineer. He was a member of the Institution of Civil Engineers and of the Institution of Mechanical Engineers, as well as of many other societies, including the Royal Institution, the American Society of Mechanical Engineers, the Société Industrielle de Mulhouse and the Verein Deutscher Ingenieure. In his experimental work he often collaborated with others, notably Professor A.B.W.Kennedy (1847–1928), with whom he was also associated in the consulting engineering firm of Kennedy \& Donkin.
    [br]
    Principal Honours and Distinctions
    Vice-President, Institution of Mechanical Engineers 1901. Institution of Civil Engineers, Telford premiums 1889, 1891; Watt Medal 1894; Manby premium 1896.
    Bibliography
    1894, Gas, Oil and Air Engines, London.
    1896, with A.B.W.Kennedy, Experiments on Steam Boilers, London. 1898, Heat Efficiency of Steam Boilers, London.
    RTS

    Biographical history of technology > Donkin, Bryan III

  • 102 Mushet, Robert Forester

    SUBJECT AREA: Metallurgy
    [br]
    b. 8 April 1811 Coleford, Gloucestershire, England
    d. 19 January 1891 Cheltenham, Gloucestershire, England
    [br]
    English steelmaker who invented the first alloy steel.
    [br]
    Mushet acquired his metallurgical knowledge in his father's ironworks at Coleford in the Forest of Dean. In 1848 his attention seems to have been drawn to the use of manganese in ironworking, in the form of spiegeleisen, an alloy of iron and manganese derived from a Prussian iron ore consisting essentially of a double carbonate of iron and manganese. This alloy came into its own in 1856 with the invention of the Bessemer steelmaking process, for Mushet found that if molten spiegeleisen was added to the Bessemer iron the quality of the product was greatly improved. Mushet patented this process, but when he failed to pay the stamp duty due in 1859 his rights lapsed. Bessemer independently discovered the use of spiegeleisen, although Mushet continued to maintain his priority.
    Mushet's most important discovery was that of tungsten steel, the forerunner of a long line of alloy steels. While working a small crucible steelworks at Coleford, he was asked by a Scottish manufacturer to make a hard-metal tool, but he found that the metal was unsatisfactory. After experiments, he found that an alloy steel containing about 8 per cent tungsten possessed remarkable properties. It proved to be self-hardening, i.e. after forging and being allowed to cool, it was found to have become hardened, without the need for the heat treatment that was normally required. Also, unlike other hardened steels, it did not lose its hardness when heated even to dull-red heat. It would thus remain hard in a cutting tool that had run hot through deep cutting. Mushet's tungsten steel was brought into use in 1868 and was of great benefit to engineers, who were making increasing demands on cutting machines.
    [br]
    Further Reading
    Biographical notice, 1878, Journal of the Iron and Steel Institute: 1–4.
    LRD

    Biographical history of technology > Mushet, Robert Forester

  • 103 הבל

    הֶבֶלm., constr. הֲבֵל or הֲבַל (b. h.) 1) breath, vapor, air, heat. Sabb.88b בה׳ שבפיהם with the (fiery) breath of their mouths. Ib. 119b ה׳ תינוקותוכ׳ the breath of school children. Ib. ה׳ שאין בו חטא a sinless breath (of children). Y.Ab. Zar. III, 42d bot. ה׳ המרחץוכ׳ the vapor of the bath room is injurious to the teeth. Yeb.80b אין בשרו מעלהה׳ his body (after bathing) does not steam. Pesik. Baḥod. p. 154a>; Lev. R. s. 29 (ref. to Ps. 62:10) עד שהן עשוייןה׳ בתוךוכ׳ while they are yet a gas (in the first embryonic stage) …, they are predestined for marital union. Y.Ter.X, 47a bot. הה׳ כובש the heat (of the fresh bread placed on top of an open wine casket) keeps the evaporations of the wine down. B. Kam. 50b להַבְלוֹ for injuries suffered through the bad air of the pit (into which the animal fell), opp. to לחבטו injuries arising from knocking against the ground. Koh. R. to I, 2 ה׳ של תנור the hot air of the stove; ה׳ של עליונה the vapor of the topmost pot; Yalk. ib. 966 ה׳ שביעית; a. e. 2) (b. h.) vanity. B. Bath.16b תנחומין שלה׳ vain consolations. Koh. R. l. c.; Yalk. l. c. (ref. to Ps. 144:4) לאיזוה׳ to what kind of hebel (breath) man is like; a. fr.Pl. הֲבָלִים. Ib. שבעהה׳וכ׳ the seven times that Solomon used the word hebel. Pesik. Baḥod. l. c.; Lev. R. l. c. כלה׳ וכזביםוכ׳ all the vain things and falsehoods which the Israelites commit.

    Jewish literature > הבל

  • 104 הֶבֶל

    הֶבֶלm., constr. הֲבֵל or הֲבַל (b. h.) 1) breath, vapor, air, heat. Sabb.88b בה׳ שבפיהם with the (fiery) breath of their mouths. Ib. 119b ה׳ תינוקותוכ׳ the breath of school children. Ib. ה׳ שאין בו חטא a sinless breath (of children). Y.Ab. Zar. III, 42d bot. ה׳ המרחץוכ׳ the vapor of the bath room is injurious to the teeth. Yeb.80b אין בשרו מעלהה׳ his body (after bathing) does not steam. Pesik. Baḥod. p. 154a>; Lev. R. s. 29 (ref. to Ps. 62:10) עד שהן עשוייןה׳ בתוךוכ׳ while they are yet a gas (in the first embryonic stage) …, they are predestined for marital union. Y.Ter.X, 47a bot. הה׳ כובש the heat (of the fresh bread placed on top of an open wine casket) keeps the evaporations of the wine down. B. Kam. 50b להַבְלוֹ for injuries suffered through the bad air of the pit (into which the animal fell), opp. to לחבטו injuries arising from knocking against the ground. Koh. R. to I, 2 ה׳ של תנור the hot air of the stove; ה׳ של עליונה the vapor of the topmost pot; Yalk. ib. 966 ה׳ שביעית; a. e. 2) (b. h.) vanity. B. Bath.16b תנחומין שלה׳ vain consolations. Koh. R. l. c.; Yalk. l. c. (ref. to Ps. 144:4) לאיזוה׳ to what kind of hebel (breath) man is like; a. fr.Pl. הֲבָלִים. Ib. שבעהה׳וכ׳ the seven times that Solomon used the word hebel. Pesik. Baḥod. l. c.; Lev. R. l. c. כלה׳ וכזביםוכ׳ all the vain things and falsehoods which the Israelites commit.

    Jewish literature > הֶבֶל

  • 105 paso1

    1 = footstep, step, footprint, pace.
    Ex. Leforte could usually identify those footsteps easily; but today they sounded less forceful and deliberate.
    Ex. The first step in assigning intellectual responsibility to a corporate body must be a definition of a corporate body.
    Ex. In later years, the famous book mythological significance of muddy footprints introduced me to the ancient Hippopotamian culture.
    Ex. Among other buildings afire or still smoldering in eastern Baghdad today were the city hall and the National Library which was so thoroughly burned that heat still radiated 50 paces from its front doors.
    ----
    * abrir paso a = make + way (for).
    * abrirse paso = jostle, break through, elbow + Posesivo + way into, elbow into.
    * acelerar el paso = quicken + the pace, smarten + Posesivo + pace.
    * a este paso = at this rate.
    * aflojar el paso = slow down, slow up.
    * aminorar el paso = slow down, slow up.
    * a paso de tortuga = at a snail's pace.
    * a paso ligero = on the double.
    * a pasos agigantados = at an exponential rate, at exponential rates, by leaps and bounds.
    * a un paso = within a stone's throw (away/from).
    * a un paso asombroso = at an astounding pace.
    * a un paso de = a heartbeat away from.
    * a un paso rápido = at a rapid pace.
    * a un paso relajado = at a strolling pace.
    * barrera de paso a nivel = level-crossing gate.
    * caminar con paso pesado = plod (along/through).
    * ceder el paso = give + way (to), yield + the right of way.
    * contador de pasos = step counter.
    * dar el primer paso = make + a start, take + the first step.
    * dar los pasos necesarios = take + steps.
    * dar los primeros pasos en = venture into.
    * dar otro paso muy importante = reach + another milestone.
    * dar paso (a) = give + way (to), yield to, make + way (for).
    * dar un gran paso adelante = reach + milestone.
    * dar un paso = make + step.
    * dar un paso adelante = step up.
    * dar un paso al frente = step up.
    * dar un paso en falso = make + a false move.
    * dar un paso hacia delante = take + a step forward, step up.
    * dejar paso = step + aside.
    * dejar paso (a) = give + way (to).
    * derecho de paso = the right of way, right of entry.
    * desandar los pasos de = retrace + Posesivo + footsteps, retrace + Posesivo + steps.
    * hacer que + Nombre + dé un paso hacia delante = take + Nombre + a/one step forward.
    * impedir el paso = block in.
    * llave de paso = spigot, faucet, tap, stopcock, stop valve.
    * llave de paso del agua = water valve.
    * llevar a cabo una serie de pasos anteriormente realizados = execute + steps.
    * obstaculizar el paso = block in.
    * otro paso más hacia + Posesivo + destrucción = another nail in + Posesivo + coffin.
    * paso adelante = step up.
    * paso a nivel = level-crossing.
    * paso a paso = one step at a time, step by step, stage by stage, stepwise.
    * paso atrás = backward step, retrograde step.
    * paso de cebra = zebra crossing.
    * paso de la gente = flow of people.
    * paso del comercio = flow of commerce.
    * Paso del Noroeste, el = North West Passage, the.
    * paso de peatones = zebra crossing, pedestrian crossing, pelican crossing.
    * paso de tortuga = snail's pace.
    * paso en falso = false move.
    * paso fronterizo = border crossing.
    * paso hacia adelante = step forward.
    * paso hacia atrás = retrograde step, step backward(s), step back.
    * paso inferior = underpass.
    * paso ininterrumpido de = steady flow of.
    * paso intermedio = half-way house, stepping stone.
    * paso peatonal = pedestrian crossing.
    * paso subterráneo = underground walkway.
    * Posesivo + primeros pasos = Posesivo + first steps.
    * preferencia de paso = the right of way.
    * primer paso = stake in the ground.
    * primer paso de, el = thin edge of the wedge, the.
    * realizar una tarea paso a paso = go through.
    * saltarse pasos intermedios = jump + steps.
    * seguir los pasos de = follow in + the footsteps of.
    * seguir + Posesivo + pasos = follow in + Posesivo + footsteps.
    * seguir unos pasos = follow + steps.
    * señal de prohibido el paso = No Entry sign.
    * ser un gran paso adelante = be half the battle.
    * tener derecho de paso = have + the right of way.
    * tomar un paso decisivo = take + the plunge.
    * un paso por delante de = one step ahead of.
    * válvula de paso = stop valve, stopcock.
    * volver sobre los pasos de Uno = double-back, retrace + Posesivo + steps, retrace + Posesivo + footsteps, go back on + Posesivo + steps.

    Spanish-English dictionary > paso1

  • 106 Bedson, George

    SUBJECT AREA: Metallurgy
    [br]
    b. 3 November 1820 Sutton Coldfield, Warwickshire, England
    d. 12 December 1884 Manchester (?), England
    [br]
    English metallurgist, inventor of the continuous rolling mill.
    [br]
    He acquired a considerable knowledge of wire-making in his father's works before he took a position in 1839 at the works of James Edleston at Warrington. From there, in 1851, he went to Manchester as Manager of Richard Johnson \& Sons' wire mill, where he remained for the rest of his life. It was there that he initiated several important improvements in the manufacture of wire. These included a system of circulating puddling furnace water bottoms and sides, and a galvanizing process. His most important innovation, however, was the continuous mill for producing iron rod for wiredrawing. Previously the red-hot iron billets had to be handled repeatedly through a stand or set of rolls to reduce the billet to the required shape, with time and heat being lost at each handling. In Bedson's continuous mill, the billet entered the first of a succession of stands placed as closely to each other as possible and emerged from the final one as rod suitable for wiredrawing, without any intermediate handling. A second novel feature was that alternate rolls were arranged vertically to save turning the piece manually through a right angle. That improved the quality as well as the speed of production. Bedson's first continuous mill was erected in Manchester in 1862 and had sixteen stands in tandem. A mill on this principle had been patented the previous year by Charles While of Pontypridd, South Wales, but it was Bedson who made it work and brought it into use commercially. A difficult problem to overcome was that as the piece being rolled lengthened, its speed increased, so that each pair of rolls had to increase correspondingly. The only source of power was a steam engine working a single drive shaft, but Bedson achieved the greater speeds by using successively larger gear-wheels at each stand.
    Bedson's first mill was highly successful, and a second one was erected at the Manchester works; however, its application was limited to the production of small bars, rods and sections. Nevertheless, Bedson's mill established an important principle of rolling-mill design that was to have wider applications in later years.
    [br]
    Further Reading
    Obituary, 1884, Journal of the Iron and Steel Institute 27:539–40. W.K.V.Gale, 1969, Iron and Steel, London: Longmans, pp. 81–2.
    LRD

    Biographical history of technology > Bedson, George

  • 107 Cowper, Edward Alfred

    SUBJECT AREA: Metallurgy
    [br]
    b. 10 December 1819 London, England
    d. 9 May 1893 Weybridge, Surrey, England
    [br]
    English inventor of the hot-blast stove used in ironmaking.
    [br]
    Cowper was apprenticed in 1834 to John Braithwaite of London and in 1846 obtained employment at the engineers Fox \& Henderson in Birmingham. In 1851 he was engaged in the contract drawings for the Crystal Palace housing the Great Exhibition, and in the same year he set up in London as a consulting engineer. Cowper designed the 211 ft (64.3 m) span roof of Birmingham railway station, the first large-span station roof to be constructed. Cowper had an inventive turn of mind. While still an apprentice, he devised the well-known railway fog-signal and, at Fox \& Henderson, he invented an improved method of casting railway chairs. Other inventions included a compound steam-engine with receiver, patented in 1857; a bicycle wheel with steel spokes and rubber tyre (1868); and an electric writing telegraph (1879). Cowper's most important invention by far was the hot-blast stove, the first application of C.W. Siemens's regenerative principle to ironmaking, patented in 1857. Waste gases from the blast furnace were burnt in an iron chamber lined with a honeycomb of firebricks. When they were hot, the gas was directed to a second similar chamber while the incoming air blast for the blast furnace was heated by passing it through the first chamber. The stoves alternatively received and gave up heat and the heated blast, introduced by J.B. Neilson, led to considerable fuel economies in blast-furnace operation; the system is still in use. Cowper played an active part in the engineering institutions of his time, becoming President of the Institution of Mechanical Engineers in 1880–1. He was commissioned by the Science and Art Department to catalogue the collections of machinery and inventions at the South Kensington Museum, whose science collections now form the Science Museum, London.
    [br]
    Principal Honours and Distinctions
    President, Institution of Mechanical Engineers 1880–1.
    Further Reading
    Obituary, 1893, Journal of the Iron and Steel Institute: 172–3, London.
    W.K.V.Gale, 1969, Iron and Steel, London: Longmans, pp. 42, 75 (describes his hot-blast stoves).
    LRD

    Biographical history of technology > Cowper, Edward Alfred

  • 108 Macintosh, Charles

    [br]
    b. 29 December 1766 Glasgow, Scotland
    d. 25 July 1843 Dunchattan, near Glasgow, Scotland
    [br]
    Scottish inventor of rubberized waterproof clothing.
    [br]
    As the son of the well-known and inventive dyer George Macintosh, Charles had an early interest in chemistry. At the age of 19 he gave up his work as a clerk with a Glasgow merchant to manufacture sal ammoniac (ammonium chloride) and developed new processes in dyeing. In 1797 he started the first Scottish alum works, finding the alum in waste shale from coal mines. His first works was at Hurlet, Renfrewshire, and was followed later by others. He then formed a partnership with Charles Tennant, the proprietor of a chemical works at St Rollox, near Glasgow, and sold "lime bleaching liquor" made with chlorine and milk of lime from their bleach works at Darnley. A year later the use of dry lime to make bleaching powder, a process worked out by Macintosh, was patented. Macintosh remained associated with Tennant's St Rollox chemical works until 1814. During this time, in 1809, he had set up a yeast factory, but it failed because of opposition from the London brewers.
    There was a steady demand for the ammonia that gas works produced, but the tar was often looked upon as an inconvenient waste product. Macintosh bought all the ammonia and tar that the Glasgow works produced, using the ammonia in his establishment to produce cudbear, a dyestuff extracted from various lichens. Cudbear could be used with appropriate mordants to make shades from pink to blue. The tar could be distilled to produce naphtha, which was used as a flare. Macintosh also became interested in ironmaking. In 1825 he took out a patent for converting malleable iron into steel by taking it to white heat in a current of gas with a carbon content, such as coal gas. However, the process was not commercially successful because of the difficulty keeping the furnace gas-tight. In 1828 he assisted J.B. Neilson in bringing hot blast into use in blast furnaces; Neilson assigned Macintosh a share in the patent, which was of dubious benefit as it involved him in the tortuous litigation that surrounded the patent until 1843.
    In June 1823, as a result of experiments into the possible uses of naphtha obtained as a by-product of the distillation of coal tar, Macintosh patented his process for waterproofing fabric. This comprised dissolving rubber in naphtha and applying the solution to two pieces of cloth which were afterwards pressed together to form an impermeable compound fabric. After an experimental period in Glasgow, Macintosh commenced manufacture in Manchester, where he formed a partnership with H.H.Birley, B.Kirk and R.W.Barton. Birley was a cotton spinner and weaver and was looking for ways to extend the output of his cloth. He was amongst the first to light his mills with gas, so he shared a common interest with Macintosh.
    New buildings were erected for the production of waterproof cloth in 1824–5, but there were considerable teething troubles with the process, particularly in the spreading of the rubber solution onto the cloth. Peter Ewart helped to install the machinery, including a steam engine supplied by Boulton \& Watt, and the naphtha was supplied from Macintosh's works in Glasgow. It seems that the process was still giving difficulties when Thomas Hancock, the foremost rubber technologist of that time, became involved in 1830 and was made a partner in 1834. By 1836 the waterproof coat was being called a "mackintosh" [sic] and was gaining such popularity that the Manchester business was expanded with additional premises. Macintosh's business was gradually enlarged to include many other kinds of indiarubber products, such as rubber shoes and cushions.
    [br]
    Principal Honours and Distinctions
    FRS 1823.
    Further Reading
    G.Macintosh, 1847, Memoir of Charles Macintosh, London (the fullest account of Charles Macintosh's life).
    H.Schurer, 1953, "The macintosh: the paternity of an invention", Transactions of the Newcomen Society 28:77–87 (an account of the invention of the mackintosh).
    RLH / LRD

    Biographical history of technology > Macintosh, Charles

  • 109 Merica, Paul Dyer

    SUBJECT AREA: Metallurgy
    [br]
    b. 17 March 1889 Warsaw, Indiana, USA
    d. 20 October 1957 Tarrytown, New York, USA
    [br]
    American physical metallurgist who elucidated the mechanism of the age-hardening of alloys.
    [br]
    Merica graduated from the University of Wisconsin in 1908. Before proceeding to the University of Berlin, he spent some time teaching in Wisconsin and in China. He obtained his doctorate in Berlin in 1914, and in that year he joined the US National Bureau of Standards (NBS) in Washington. During his five years there, he investigated the causes of the phenomenon of age-hardening of the important new alloy of aluminium, Duralumin.
    This phenomenon had been discovered not long before by Dr Alfred Wilm, a German research metallurgist. During the early years of the twentieth century, Wilm had been seeking a suitable light alloy for making cartridge cases for the Prussian government. In the autumn of 1909 he heated and quenched an aluminium alloy containing 3.5 per cent copper and 0.5 per cent magnesium and found its properties unremarkable. He happened to test it again some days later and was impressed to find its hardness and strength were much improved: Wilm had accidentally discovered age-hardening. He patented the alloy, but he made his rights over to Durener Metallwerke, who marketed it as Duralumin. This light and strong alloy was taken up by aircraft makers during the First World War, first for Zeppelins and then for other aircraft.
    Although age-hardened alloys found important uses, the explanation of the phenomenon eluded metallurgists until in 1919 Merica and his colleagues at the NBS gave the first rational explanation of age-hardening in light alloys. When these alloys were heated to temperatures near their melting points, the alloying constituents were taken into solution by the matrix. Quenching retained the alloying metals in supersaturated solid solution. At room temperature very small crystals of various intermetallic compounds were precipitated and, by inserting themselves in the aluminium lattice, had the effect of increasing the hardness and strength of the alloy. Merica's theory stimulated an intensive study of hardening and the mechanism that brought it about, with important consequences for the development of new alloys with special properties.
    In 1919 Merica joined the International Nickel Company as Director of Research, a post he held for thirty years and followed by a three-year period as President. He remained in association with the company until his death.
    [br]
    Bibliography
    1919, "Heat treatment and constitution of Duralumin", Sci. Papers, US Bureau of Standards, no. 37; 1932, "The age-hardening of metals", Transactions of the American Institution of Min. Metal 99:13–54 (his two most important papers).
    Further Reading
    Z.Jeffries, 1959, "Paul Dyer Merica", Biographical Memoirs of the National Academy of Science 33:226–39 (contains a list of Merica's publications and biographical details).
    LRD

    Biographical history of technology > Merica, Paul Dyer

  • 110 Porta, Giovanni Battista (Giambattista) della

    [br]
    b. between 3 October and 15 November 1535 Vico Equense, near Naples, Italy
    d. 4 February 1615 Naples, Italy
    [br]
    Italian natural philosopher who published many scientific books, one of which covered ideas for the use of steam.
    [br]
    Giambattista della Porta spent most of his life in Naples, where some time before 1580 he established the Accademia dei Segreti, which met at his house. In 1611 he was enrolled among the Oziosi in Naples, then the most renowned literary academy. He was examined by the Inquisition, which, although he had become a lay brother of the Jesuits by 1585, banned all further publication of his books between 1592 and 1598.
    His first book, the Magiae Naturalis, which covered the secrets of nature, was published in 1558. He had been collecting material for it since the age of 15 and he saw that science should not merely represent theory and contemplation but must arrive at practical and experimental expression. In this work he described the hardening of files and pieces of armour on quite a large scale, and it included the best sixteenth-century description of heat treatment for hardening steel. In the 1589 edition of this work he covered ways of improving vision at a distance with concave and convex lenses; although he may have constructed a compound microscope, the history of this instrument effectively begins with Galileo. His theoretical and practical work on lenses paved the way for the telescope and he also explored the properties of parabolic mirrors.
    In 1563 he published a treatise on cryptography, De Furtivis Liter arum Notis, which he followed in 1566 with another on memory and mnemonic devices, Arte del Ricordare. In 1584 and 1585 he published treatises on horticulture and agriculture based on careful study and practice; in 1586 he published De Humana Physiognomonia, on human physiognomy, and in 1588 a treatise on the physiognomy of plants. In 1593 he published his De Refractione but, probably because of the ban by the Inquisition, no more were produced until the Spiritali in 1601 and his translation of Ptolemy's Almagest in 1605. In 1608 two new works appeared: a short treatise on military fortifications; and the De Distillatione. There was an important work on meteorology in 1610. In 1601 he described a device similar to Hero's mechanisms which opened temple doors, only Porta used steam pressure instead of air to force the water out of its box or container, up a pipe to where it emptied out into a higher container. Under the lower box there was a small steam boiler heated by a fire. He may also have been the first person to realize that condensed steam would form a vacuum, for there is a description of another piece of apparatus where water is drawn up into a container at the top of a long pipe. The container was first filled with steam so that, when cooled, a vacuum would be formed and water drawn up into it. These are the principles on which Thomas Savery's later steam-engine worked.
    [br]
    Further Reading
    Dictionary of Scientific Biography, 1975, Vol. XI, New York: C.Scribner's Sons (contains a full biography).
    H.W.Dickinson, 1938, A Short History of the Steam Engine, Cambridge University Press (contains an account of his contributions to the early development of the steam-engine).
    C.Singer (ed.), 1957, A History of Technology, Vol. III, Oxford University Press (contains accounts of some of his other discoveries).
    I.Asimov (ed.), 1982, Biographical Encyclopaedia of Science and Technology, 2nd edn., New York: Doubleday.
    G.Sarton, 1957, Six wings: Men of Science in the Renaissance, London: Bodley Head, pp. 85–8.
    RLH / IMcN

    Biographical history of technology > Porta, Giovanni Battista (Giambattista) della

  • 111 Rittinger, Peter von

    [br]
    b. 23 January 1811 Neutitschein, Moravia (now Now Jicin, Czech Republic)
    d. 7 December 1872 Vienna, Austria
    [br]
    Austrian mining engineer, improver of the processing of minerals.
    [br]
    After studying law, philosophy and politics at the University of Olmutz (now Olomouc), in 1835 Rittinger became a fellow of the Mining Academy in Schemnitz (now Banská Štiavnica), Slovakia. In 1839, the year he finished at the academy, he published a book on perspective drawing. The following year, he became Inspector of Mills at the ore mines in Schemnitz, and in 1845 he was engaged in coal mining in Bohemia and Moravia. In 1849 he joined the mining administration at Joachimsthal (now Jáchymov), Bohemia. In these early years he contributed his first important innovations for the mining industry and thus fostered his career in the government's service. In 1850 he was called to Vienna to become a high-ranked officer in various ministries. He was responsible for the construction of buildings, pumping installations and all sorts of machinery in the mining industry; he reorganized the curricula of the mining schools, was responsible for the mint and became head of the department of mines, forests and salt-works in the Austrian empire.
    During all his years of public service, Rittinger continued his concern with technological innovations. He improved the processing of ores by introducing in 1844 the rotary washer and the box classifier, and later his continuously shaking concussion table which, having been exhibited at the Vienna World Fair of 1873, was soon adopted in other countries. He constructed water-column pumps, invented a differential shaft pump with hydraulic linkage to replace the heavy iron rods and worked on centrifugal pumps. He was one of the first to be concerned with the transfer of heat, and he developed a system of using exhaust steam for heating in salt-works. He kept his eye on current developments abroad, using his function as official Austrian commissioner to the world exhibitions, on which he published frequently as well as on other matters related to technology. With his systematic handbook on mineral processing, first published in 1867, he emphasized his international reputation in this specialized field of mining.
    [br]
    Principal Honours and Distinctions
    Knighted 1863. Order of the Iron Crown 1863. Honorary Citizen of Joachimsthal 1864. President, Austrian Chamber of Engineers and Architects 1863–5.
    Bibliography
    1849, Der Spitzkasten-Apparat statt Mehlrinnen und Sümpfen…bei der nassen Aufbereitung, Freiberg.
    1855, Theoretisch-praktische Abhandlung über ein für alle Gattungen von Flüssigkeiten anwendbares neues Abdampfverfahren, Vienna.
    1867, Lehrbuch der Aufbereitungskunde, Berlin (with supplements, 1870–73).
    Further Reading
    H.Kunnert, 1972, "Peter Ritter von Rittinger. Lebensbild eines grossen Montanisten", Der Anschnitt 24:3–7 (a detailed description of his life, based on source material).
    J.Steiner, 1972, "Der Beitrag von Peter Rittinger zur Entwicklung der Aufbereitungstechnik". Berg-und hüttenmännische Monatshefte 117: 471–6 (an evaluation of Rittinger's achievements for the processing of ores).
    WK

    Biographical history of technology > Rittinger, Peter von

  • 112 Smeaton, John

    [br]
    b. 8 June 1724 Austhorpe, near Leeds, Yorkshire, England
    d. 28 October 1792 Austhorpe, near Leeds, Yorkshire, England
    [br]
    English mechanical and civil engineer.
    [br]
    As a boy, Smeaton showed mechanical ability, making for himself a number of tools and models. This practical skill was backed by a sound education, probably at Leeds Grammar School. At the age of 16 he entered his father's office; he seemed set to follow his father's profession in the law. In 1742 he went to London to continue his legal studies, but he preferred instead, with his father's reluctant permission, to set up as a scientific instrument maker and dealer and opened a shop of his own in 1748. About this time he began attending meetings of the Royal Society and presented several papers on instruments and mechanical subjects, being elected a Fellow in 1753. His interests were turning towards engineering but were informed by scientific principles grounded in careful and accurate observation.
    In 1755 the second Eddystone lighthouse, on a reef some 14 miles (23 km) off the English coast at Plymouth, was destroyed by fire. The President of the Royal Society was consulted as to a suitable engineer to undertake the task of constructing a new one, and he unhesitatingly suggested Smeaton. Work began in 1756 and was completed in three years to produce the first great wave-swept stone lighthouse. It was constructed of Portland stone blocks, shaped and pegged both together and to the base rock, and bonded by hydraulic cement, scientifically developed by Smeaton. It withstood the storms of the English Channel for over a century, but by 1876 erosion of the rock had weakened the structure and a replacement had to be built. The upper portion of Smeaton's lighthouse was re-erected on a suitable base on Plymouth Hoe, leaving the original base portion on the reef as a memorial to the engineer.
    The Eddystone lighthouse made Smeaton's reputation and from then on he was constantly in demand as a consultant in all kinds of engineering projects. He carried out a number himself, notably the 38 mile (61 km) long Forth and Clyde canal with thirty-nine locks, begun in 1768 but for financial reasons not completed until 1790. In 1774 he took charge of the Ramsgate Harbour works.
    On the mechanical side, Smeaton undertook a systematic study of water-and windmills, to determine the design and construction to achieve the greatest power output. This work issued forth as the paper "An experimental enquiry concerning the natural powers of water and wind to turn mills" and exerted a considerable influence on mill design during the early part of the Industrial Revolution. Between 1753 and 1790 Smeaton constructed no fewer than forty-four mills.
    Meanwhile, in 1756 he had returned to Austhorpe, which continued to be his home base for the rest of his life. In 1767, as a result of the disappointing performance of an engine he had been involved with at New River Head, Islington, London, Smeaton began his important study of the steam-engine. Smeaton was the first to apply scientific principles to the steam-engine and achieved the most notable improvements in its efficiency since its invention by Newcomen, until its radical overhaul by James Watt. To compare the performance of engines quantitatively, he introduced the concept of "duty", i.e. the weight of water that could be raised 1 ft (30 cm) while burning one bushel (84 lb or 38 kg) of coal. The first engine to embody his improvements was erected at Long Benton colliery in Northumberland in 1772, with a duty of 9.45 million pounds, compared to the best figure obtained previously of 7.44 million pounds. One source of heat loss he attributed to inaccurate boring of the cylinder, which he was able to improve through his close association with Carron Ironworks near Falkirk, Scotland.
    [br]
    Principal Honours and Distinctions
    FRS 1753.
    Bibliography
    1759, "An experimental enquiry concerning the natural powers of water and wind to turn mills", Philosophical Transactions of the Royal Society.
    Towards the end of his life, Smeaton intended to write accounts of his many works but only completed A Narrative of the Eddystone Lighthouse, 1791, London.
    Further Reading
    S.Smiles, 1874, Lives of the Engineers: Smeaton and Rennie, London. A.W.Skempton, (ed.), 1981, John Smeaton FRS, London: Thomas Telford. L.T.C.Rolt and J.S.Allen, 1977, The Steam Engine of Thomas Newcomen, 2nd edn, Hartington: Moorland Publishing, esp. pp. 108–18 (gives a good description of his work on the steam-engine).
    LRD

    Biographical history of technology > Smeaton, John

  • 113 Swan, Sir Joseph Wilson

    [br]
    b. 31 October 1828 Sunderland, England
    d. 27 May 1914 Warlingham, Surrey, England
    [br]
    English chemist, inventor in Britain of the incandescent electric lamp and of photographic processes.
    [br]
    At the age of 14 Swan was apprenticed to a Sunderland firm of druggists, later joining John Mawson who had opened a pharmacy in Newcastle. While in Sunderland Swan attended lectures at the Athenaeum, at one of which W.E. Staite exhibited electric-arc and incandescent lighting. The impression made on Swan prompted him to conduct experiments that led to his demonstration of a practical working lamp in 1879. As early as 1848 he was experimenting with carbon as a lamp filament, and by 1869 he had mounted a strip of carbon in a vessel exhausted of air as completely as was then possible; however, because of residual air, the filament quickly failed.
    Discouraged by the cost of current from primary batteries and the difficulty of achieving a good vacuum, Swan began to devote much of his attention to photography. With Mawson's support the pharmacy was expanded to include a photographic business. Swan's interest in making permanent photographic records led him to patent the carbon process in 1864 and he discovered how to make a sensitive dry plate in place of the inconvenient wet collodian process hitherto in use. He followed this success with the invention of bromide paper, the subject of a British patent in 1879.
    Swan resumed his interest in electric lighting. Sprengel's invention of the mercury pump in 1865 provided Swan with the means of obtaining the high vacuum he needed to produce a satisfactory lamp. Swan adopted a technique which was to become an essential feature in vacuum physics: continuing to heat the filament during the exhaustion process allowed the removal of absorbed gases. The inventions of Gramme, Siemens and Brush provided the source of electrical power at reasonable cost needed to make the incandescent lamp of practical service. Swan exhibited his lamp at a meeting in December 1878 of the Newcastle Chemical Society and again the following year before an audience of 700 at the Newcastle Literary and Philosophical Society. Swan's failure to patent his invention immediately was a tactical error as in November 1879 Edison was granted a British patent for his original lamp, which, however, did not go into production. Parchmentized thread was used in Swan's first commercial lamps, a material soon superseded by the regenerated cellulose filament that he developed. The cellulose filament was made by extruding a solution of nitro-cellulose in acetic acid through a die under pressure into a coagulating fluid, and was used until the ultimate obsolescence of the carbon-filament lamp. Regenerated cellulose became the first synthetic fibre, the further development and exploitation of which he left to others, the patent rights for the process being sold to Courtaulds.
    Swan also devised a modification of Planté's secondary battery in which the active material was compressed into a cellular lead plate. This has remained the central principle of all improvements in secondary cells, greatly increasing the storage capacity for a given weight.
    [br]
    Principal Honours and Distinctions
    Knighted 1904. FRS 1894. President, Institution of Electrical Engineers 1898. First President, Faraday Society 1904. Royal Society Hughes Medal 1904. Chevalier de la Légion d'Honneur 1881.
    Bibliography
    2 January 1880, British patent no. 18 (incandescent electric lamp).
    24 May 1881, British patent no. 2,272 (improved plates for the Planté cell).
    1898, "The rise and progress of the electrochemical industries", Journal of the Institution of Electrical Engineers 27:8–33 (Swan's Presidential Address to the Institution of Electrical Engineers).
    Further Reading
    M.E.Swan and K.R.Swan, 1968, Sir Joseph Wilson Swan F.R.S., Newcastle upon Tyne (a detailed account).
    R.C.Chirnside, 1979, "Sir Joseph Swan and the invention of the electric lamp", IEE
    Electronics and Power 25:96–100 (a short, authoritative biography).
    GW

    Biographical history of technology > Swan, Sir Joseph Wilson

  • 114 Thomson, Sir William, Lord Kelvin

    [br]
    b. 26 June 1824 Belfast, Ireland (now Northern Ireland)
    d. 17 December 1907 Largs, Scotland
    [br]
    Irish physicist and inventor who contributed to submarine telegraphy and instrumentation.
    [br]
    After education at Glasgow University and Peterhouse, Cambridge, a period of study in France gave Thomson an interest in experimental work and instrumentation. He became Professor of Natural Philosophy at Glasgow in 1846 and retained the position for the rest of his career, establishing the first teaching laboratory in Britain.
    Among his many contributions to science and engineering was his concept, introduced in 1848, of an "absolute" zero of temperature. Following on from the work of Joule, his investigations into the nature of heat led to the first successful liquefaction of gases such as hydrogen and helium, and later to the science of low-temperature physics.
    Cable telegraphy gave an impetus to the scientific measurement of electrical quantities, and for many years Thomson was a member of the British Association Committee formed in 1861 to consider electrical standards and to develop units; these are still in use. Thomson first became Scientific Adviser to the Atlantic Telegraph Company in 1857, sailing on the Agamemnon and Great Eastern during the cable-laying expeditions. He invented a mirror galvanometer and more importantly the siphon recorder, which, used as a very sensitive telegraph receiver, provided a permanent record of signals. He also laid down the design parameters of long submarine cables and discovered that the conductivity of copper was greatly affected by its purity. A major part of the success of the Atlantic cable in 1866 was due to Thomson, who received a knighthood for his contribution.
    Other instruments he designed included a quadrant electrostatic voltmeter to measure high voltages, and his "multi-cellular" instrument for low voltages. They could be used on alternating or direct current and were free from temperature errors. His balances for precision current measurement were widely used in standardizing laboratories.
    Thomson was a prolific writer of scientific papers on subjects across the whole spectrum of physics; between 1855 and 1866 he published some 110 papers, with a total during his life of over 600. In 1892 he was raised to the peerage as Baron Kelvin of Largs. By the time of his death he was looked upon as the "father" of British physics, but despite his outstanding achievements his later years were spent resisting change and progress.
    [br]
    Principal Honours and Distinctions
    Knighted 1866. Created Lord Kelvin of Largs 1892. FRS 1851. President, Royal Society 1890–4. An original member of the Order of Merit 1902. President, Society of Telegraph Engineers 1874. President, Institution of Electrical Engineers 1889 and 1907. Royal Society Royal Medal 1856, Copley Medal 1883.
    Bibliography
    1872, Reprints of Papers on Electrostatics and Magnetism, London; 1911, Mathematical and Physical Papers, 6 vols, Cambridge (collections of Thomson's papers).
    Further Reading
    Silvanus P.Thompson, 1910, The Life of William Thomson, Baron Kelvin of Largs, 2 vols, London (an uncritical biography).
    D.B.Wilson, 1987, Kelvin and Stokes: A Comparative Study in Victorian Physics, Bristol (provides a present-day commentary on all aspects of Thomson's work).
    J.G.Crowther, 1962, British Scientists of the 19th Century, London, pp. 199–257 (a short critical biography).
    GW

    Biographical history of technology > Thomson, Sir William, Lord Kelvin

  • 115 Winsor, Frederick Albert

    SUBJECT AREA: Public utilities
    [br]
    b. 1763 Brunswick, Germany
    d. 11 May 1830 Paris, France
    [br]
    German pioneer of gas lighting,
    [br]
    He was born Frederic Albrecht Winzer but anglicized his name after settling in England. His interest in gas lighting was aroused by the experiments of Philippe Lebon in Paris in 1802. Winsor had little scientific knowledge or engineering ability, but was well endowed with confidence and enterprise. He alone among the early practitioners of gas-making envisaged a central plant supplying a number of users through gas mains. He managed to discover the essentials of Lebon's process and tried without success to exploit it on the European continent. So he moved to England in 1803 and settled first in Grosvenor Square and then in Pall Mall. He gave public demonstrations of gas lighting at the Lyceum Theatre in London and in 1804 took out his first patent. In December he lit Pall Mall, the first street to be illuminated by gas. Winsor then began to promote a grandiose scheme for the formation of a National Light and Heat Company. He struggled against bitter opposition both in and out of Parliament to obtain sanction for his company, and it was only after the third attempt that the Gas Light \& Coke Company received its charter in 1812. However, Winsor lacked the knowledge to devise successful gas-producing plant, even with the help of the German immigrant chemist F.C.Accum. Winsor was dismissed in 1812 and returned to Paris the following year, while the company recovered with the appointment of an able engineer, Samuel Clegg. Winsor formed a company in Paris to install gas lighting, but that failed in 1819.
    [br]
    Further Reading
    W.Matthew, 1827, An Historical Sketch of the Origin, Progress and Present State of Gaslighting, London.
    E.G.Stewart, 1958, Town Gas, Its Manufacture and Distribution, London: Science Museum.
    LRD

    Biographical history of technology > Winsor, Frederick Albert

  • 116 Б-151

    (БРАТЬ/ВЗЯТЬ) ЗА БОКА кого highly coll VP (with subj: human or PrepP (used as predic, often as imper
    )
    1. to censure, blame s.o., holding him responsible for sth. he has done wrong
    X взял Y-a за бока - X called Y to account
    X had Y on the carpet X took Y to task.
    2. to compel, force s.o. to do sth.: X взял Y-a за бока = X put (turned) the heat on Y
    X put the screws on Y X strong-armed Y X twisted Y's arm X put pressure on Y.
    (Авдотья Назаровна:) Шутка ли, с пяти часов сижу, а она (Зинаида Савишна) хоть бы ржавою селёдкой попотчевала!.. (1-й гость:)...Со скуки да с голоду волком завоешь и людей грызть начнёшь... (Авдотья Назаровна:) Пойдём поищем, что ли... (1-й гость:) Тсс!.. Потихоньку! Шнапс, кажется, в столовой, в буфете стоит. Мы Егорушку за бока... Тсс!.. (Чехов 4). (A.N.:) It's no joke, I've been sitting here since five o'clock, and she (Zinaida Savishna) hasn't offered me so much as a piece of moldy herring!... (First Guest:)...I'm so bored and hungry, I could howl like a wolf and start gnawing on someone.... (A.N.:) Let's go and see if we can find- (First Guest:) Sh!...Quietly. I think there's some schnapps on the sideboard in the dining room. We'll put the screws on Yegorushka....Sh!... (4a).
    He приехал бы некий Виктор в гости к брату, тот не выпил бы лишку и не умер, тётя Глаша не отдала бы иконы, Гартвиг их не привёз бы, Нюра не стала бы просить старую икону в больницу как раз в тот момент, когда приятели Кирилла взяли его за бока, и не случилось бы всего остального... (Трифонов 5). If a certain Viktor hadn't come to visit his brother, the brother wouldn't have drunk too much and died, Aunt Glasha wouldn't have given up her ikons, Gartvig wouldn't have brought them to us, Nyura wouldn't have started asking for the old ikon in the hospital just at the moment when Kirill's friends were putting pressure on him, and none of the rest would have happened... (5a).

    Большой русско-английский фразеологический словарь > Б-151

  • 117 брать за бока

    • (БРАТЬ/ВЗЯТЬ) ЗА БОКА кого highly coll
    [VP (with subj: human) or PrepP (used as predic, often as imper)]
    =====
    1. to censure, blame s.o., holding him responsible for sth. he has done wrong:
    - X took Y to task.
    2. to compel, force s.o. to do sth.:
    - X put pressure on Y.
         ♦ [Авдотья Назаровна:] Шутка ли, с пяти часов сижу, а она [Зинаида Савишна] хоть бы ржавою селёдкой попотчевала!.. [1-й гость:]...Со скуки да с голоду волком завоешь и людей грызть начнёшь... [Авдотья Назаровна:] Пойдём поищем, что ли... [1-й гость:] Тсс!.. Потихоньку! Шнапс, кажется, в столовой, в буфете стоит. Мы Егорушку за бока... Тсс!.. (Чехов 4). [A.N.:] It's no joke, I've been sitting here since five o'clock, and she [Zinaida Savishna] hasn't offered me so much as a piece of moldy herring!... [First Guest:]... I'm so bored and hungry, I could howl like a wolf and start gnawing on someone.... [A.N.:] Let's go and see if we can find - [First Guest:] Sh!...Quietly. I think there's some schnapps on the sideboard in the dining room. We'll put the screws on Yegorushka....Sh!... (4a).
         ♦ Не приехал бы некий Виктор в гости к брату, тот не выпил бы лишку и не умер, тётя Глаша не отдала бы иконы, Гартвиг их не привёз бы, Нюра не стала бы просить старую икону в больницу как раз в тот момент, когда приятели Кирилла взяли его за бока, и не случилось бы всего остального... (Трифонов 5). If a certain Viktor hadn't come to visit his brother, the brother wouldn't have drunk too much and died, Aunt Glasha wouldn't have given up her ikons, Gartvig wouldn't have brought them to us, Nyura wouldn't have started asking for the old ikon in the hospital just at the moment when Kirill's friends were putting pressure on him, and none of the rest would have happened... (5a).

    Большой русско-английский фразеологический словарь > брать за бока

  • 118 взять за бока

    • (БРАТЬ/ВЗЯТЬ) ЗА БОКА кого highly coll
    [VP (with subj: human) or PrepP (used as predic, often as imper)]
    =====
    1. to censure, blame s.o., holding him responsible for sth. he has done wrong:
    - X took Y to task.
    2. to compel, force s.o. to do sth.:
    - X put pressure on Y.
         ♦ [Авдотья Назаровна:] Шутка ли, с пяти часов сижу, а она [Зинаида Савишна] хоть бы ржавою селёдкой попотчевала!.. [1-й гость:]...Со скуки да с голоду волком завоешь и людей грызть начнёшь... [Авдотья Назаровна:] Пойдём поищем, что ли... [1-й гость:] Тсс!.. Потихоньку! Шнапс, кажется, в столовой, в буфете стоит. Мы Егорушку за бока... Тсс!.. (Чехов 4). [A.N.:] It's no joke, I've been sitting here since five o'clock, and she [Zinaida Savishna] hasn't offered me so much as a piece of moldy herring!... [First Guest:]... I'm so bored and hungry, I could howl like a wolf and start gnawing on someone.... [A.N.:] Let's go and see if we can find - [First Guest:] Sh!...Quietly. I think there's some schnapps on the sideboard in the dining room. We'll put the screws on Yegorushka....Sh!... (4a).
         ♦ Не приехал бы некий Виктор в гости к брату, тот не выпил бы лишку и не умер, тётя Глаша не отдала бы иконы, Гартвиг их не привёз бы, Нюра не стала бы просить старую икону в больницу как раз в тот момент, когда приятели Кирилла взяли его за бока, и не случилось бы всего остального... (Трифонов 5). If a certain Viktor hadn't come to visit his brother, the brother wouldn't have drunk too much and died, Aunt Glasha wouldn't have given up her ikons, Gartvig wouldn't have brought them to us, Nyura wouldn't have started asking for the old ikon in the hospital just at the moment when Kirill's friends were putting pressure on him, and none of the rest would have happened... (5a).

    Большой русско-английский фразеологический словарь > взять за бока

  • 119 за бока

    • (БРАТЬ/ВЗЯТЬ) ЗА БОКА кого highly coll
    [VP (with subj: human) or PrepP (used as predic, often as imper)]
    =====
    1. to censure, blame s.o., holding him responsible for sth. he has done wrong:
    - X взял Y-а за бока≈ X called Y to account;
    - X took Y to task.
    2. to compel, force s.o. to do sth.:
    - X взял Y-а за бока≈ X put (turned) the heat on Y;
    - X put pressure on Y.
         ♦ [Авдотья Назаровна:] Шутка ли, с пяти часов сижу, а она [Зинаида Савишна] хоть бы ржавою селёдкой попотчевала!.. [1-й гость:]...Со скуки да с голоду волком завоешь и людей грызть начнёшь... [Авдотья Назаровна:] Пойдём поищем, что ли... [1-й гость:] Тсс!.. Потихоньку! Шнапс, кажется, в столовой, в буфете стоит. Мы Егорушку за бока... Тсс!.. (Чехов 4). [A.N.:] It's no joke, I've been sitting here since five o'clock, and she [Zinaida Savishna] hasn't offered me so much as a piece of moldy herring!... [First Guest:]... I'm so bored and hungry, I could howl like a wolf and start gnawing on someone.... [A.N.:] Let's go and see if we can find - [First Guest:] Sh!...Quietly. I think there's some schnapps on the sideboard in the dining room. We'll put the screws on Yegorushka....Sh!... (4a).
         ♦ Не приехал бы некий Виктор в гости к брату, тот не выпил бы лишку и не умер, тётя Глаша не отдала бы иконы, Гартвиг их не привёз бы, Нюра не стала бы просить старую икону в больницу как раз в тот момент, когда приятели Кирилла взяли его за бока, и не случилось бы всего остального... (Трифонов 5). If a certain Viktor hadn't come to visit his brother, the brother wouldn't have drunk too much and died, Aunt Glasha wouldn't have given up her ikons, Gartvig wouldn't have brought them to us, Nyura wouldn't have started asking for the old ikon in the hospital just at the moment when Kirill's friends were putting pressure on him, and none of the rest would have happened... (5a).

    Большой русско-английский фразеологический словарь > за бока

  • 120 aumentar

    v.
    1 to increase, to rise.
    aumentar la producción to increase production
    la lente aumenta la imagen the lens magnifies the image
    me han aumentado el sueldo my salary has been raised
    aumentó casi 10 kilos he put on almost 10 kilos
    aumentar de peso/tamaño to increase in weight/size
    aumentar de precio to go up o increase in price
    el desempleo aumentó en un 4 por ciento unemployment rose o increased by 4 percent
    El ejercicio aumenta el apetito Exercising increases the appetite.
    Aumentaron los gastos The expenses increased.
    Nos aumentaron las ganancias este año Our profits increased this year.
    2 to magnify, to amplify.
    El reportero aumentó la noticia The reporter magnified the news story.
    3 to enlarge.
    Vamos a aumentar la casa We will enlarge the house.
    4 to raise, to improve.
    El movimiento aumentó la temperatura Movement raised the temperature.
    5 to increase the size of, to enlarge.
    * * *
    1 to augment, increase (precios) to put up; (producción) to step up
    2 (óptica) to magnify
    3 (fotos) to enlarge
    4 (sonido) to amplify
    1 to rise, go up
    1 to increase, be on the increase (precios) to go up, rise
    * * *
    verb
    * * *
    1. VT
    1) [+ tamaño] to increase; (Fot) to enlarge; (Ópt) to magnify
    2) [+ cantidad] to increase; [+ precio] to increase, put up; [+ producción] to increase, step up
    3) [+ intensidad] to increase
    4) (Elec, Radio) to amplify
    2. VI
    1) [tamaño] to increase
    2) [cantidad, precio, producción] to increase, go up

    este semestre aumentó la inflación en un 2% — inflation has increased o gone up by 2% over the last 6 months

    3) [intensidad] to increase
    4)

    aumentar de peso — [objeto] to increase in weight; [persona] to put on o gain weight

    * * *
    1.
    verbo transitivo
    a) <precio/sueldo> to increase, raise; <cantidad/velocidad/tamaño> to increase; <producción/dosis> to increase, step up; dolor/miedo/tensión to increase
    b) < puntos> ( en tejido) to increase
    2.
    aumentar vi temperatura/presión to rise; velocidad to increase; precio/producción/valor to increase, rise

    aumentar de algo — de volumen/tamaño to increase in something

    aumentó de peso — he put on o gained weight

    * * *
    = accelerate, augment, become + large, enhance, enlarge, escalate, expand, grow + larger, increase, raise, rise, strengthen, accentuate, grow, add to, deepen, mushroom, intensify, wax, swell, pump up, bump up, step up, spike, crank up, ramp up, move it up + a gear, notch it up + a gear, take it up + a gear, take it up + a notch, crank it up + a notch, crank it up + a gear, move it up + a notch, ratchet up, amp up, turn up.
    Ex. In recent years, the pace of change has accelerated with the introduction of on-line information retrieval.
    Ex. These sources which form the basis of the intellectual selection of terms may be augmented by the machine selection of terms.
    Ex. If the number of categories becomes large, cross-references will be necessary between individual files.
    Ex. An introduction explaining the nature and scope of the indexing language will enhance its value.
    Ex. Here entry is made under the original author of an edition that has been revised, enlarged, updated, condensed, and so on by another person.
    Ex. Over the past two to three years the numbers of full text data bases and data banks has started to escalate considerably.
    Ex. As the quantity of knowledge expands the need to organise it becomes more pressing.
    Ex. As the system grows larger it's more difficult to maintain that control.
    Ex. Recall is inversely proportional to precision, and vice versa, or in other words, as one increases, the other must decrease.
    Ex. The speaker said that James estimated people function at only 20% of their capacity, and concluded that they could raise this percentage considerable if they knew how to manage their time more efficiently.
    Ex. If suppliers are forced out of business, there will be less software to lend and prices will rise with the lack of competition.
    Ex. He proposes a research agenda that could strengthen archival appraisal and the profession's ability to document society.
    Ex. However, future trends may tend to accentuate this division.
    Ex. No true reader can be expected to grow on a diet of prescribed texts only regardless of how well chosen they are.
    Ex. In addition, Britain has one of the most extensive bodies of legislation in the world, which is added to daily and encrusted with myriad rules and regulations.
    Ex. One of the effects of reading in children is that their appreciation of the processes and function of literature is deepened.
    Ex. The use of electronic mail systems has mushroomed in the last 5 years in industrialised nations.
    Ex. Whilst these achievements are commendable, there is a catch in them -- there can be used to 'intensify' the economic exploitation of women.
    Ex. The population waxed again slightly, then waned again, until it finally stabilized around its present 55,000.
    Ex. Reference work has been ill-served in the past by its expositors and theoreticians: its extensive literature of several hundred papers and books is swollen by a mass of the transient and the trivial.
    Ex. The article ' Pump up the program...' identifies the costs and benefits of undertaking a software upgrade.
    Ex. Most librarians will admit that they could probably increase the use made of their lending libraries and bump up their annual loans by stocking more romances and thrillers and fewer serious novels, but they do not do this.
    Ex. The intensity of marketing to schools and parents will have to be stepped up by publishers if they are to succeed in the more competitive market.
    Ex. Baby boomers are desperately trying to hold onto their salad days -- plastic surgery, vitamins and drugs like Viagra have spiked in public demand.
    Ex. Refiners are cranking up diesel output to meet rising global demand.
    Ex. EGND has hit a home run with the introduction of a new product line, increasing sales projections, and ramping up production schedules.
    Ex. Liverpool and Chelsea are grabbing all the headlines, but Arsenal have quietly moved it up a gear scoring 10 goals in their last three league games.
    Ex. Start gently, ease yourself in by breaking the workout down into three one minute sessions until you are ready to notch it up a gear and join them together.
    Ex. There was not much to separate the sides in the first ten minutes however Arsenal took it up a gear and got the goal but not without a bit of luck.
    Ex. We have a good time together and we're good friends.. but I'd like to take it up a notch.
    Ex. David quickly comprehended our project needs and then cranked it up a notch with impactful design.
    Ex. Went for a bike ride with a mate last week, no problems so will crank it up a gear and tackle some hills in the next few weeks.
    Ex. After a regular walking routine is established, why not move it up a notch and start jogging, if you haven't already.
    Ex. The health department has ratcheted up efforts to prevent or slow down the spread of swine flu in schools.
    Ex. In order to gain strength fast, you need to immediately begin amping up your strength thermostat in your mind.
    Ex. Cytokines are small proteins used to communicate messages between the immune cells in the immune system to either turn up or down the immune response.
    ----
    * aumentar de importancia = grow in + importance, grow in + significance.
    * aumentar de tamaño = grow in + size, grow + larger, increase in + size.
    * aumentar de valor = increase in + value.
    * aumentar el conocimiento = expand + Posesivo + knowledge, deepen + awareness.
    * aumentar el control = tighten (up) + control.
    * aumentar el esfuerzo = increase + effort.
    * aumentar el precio = mark up + price, jack up + the price.
    * aumentar el presupuesto = add + monies to + budget.
    * aumentar en cantidad = increase in + quantity.
    * aumentar en número = grow in + numbers, increase in + numbers.
    * aumentar en variedad = grow in + kind.
    * aumentar la confusión = add to + the confusion.
    * aumentar la experiencia = deepen + experience.
    * aumentar la productividad = increase + productivity, boost + Posesivo + productivity.
    * aumentar las diferencias entre... y = widen + the gap between... and.
    * aumentar las posibilidades = increase + the odds.
    * aumentar las probabilidades = shorten + the odds.
    * aumentar las ventas = boost + sales.
    * aumentar la velocidad = grow + faster.
    * aumentar los costes = cost + rise.
    * aumentar los impuestos = increase + taxes.
    * aumentar los ingresos = boost + Posesivo + income.
    * aumentar rápidamente = snowball.
    * crisis + aumentar = crisis + deepen.
    * estar aumentando = be on the increase.
    * * *
    1.
    verbo transitivo
    a) <precio/sueldo> to increase, raise; <cantidad/velocidad/tamaño> to increase; <producción/dosis> to increase, step up; dolor/miedo/tensión to increase
    b) < puntos> ( en tejido) to increase
    2.
    aumentar vi temperatura/presión to rise; velocidad to increase; precio/producción/valor to increase, rise

    aumentar de algo — de volumen/tamaño to increase in something

    aumentó de peso — he put on o gained weight

    * * *
    = accelerate, augment, become + large, enhance, enlarge, escalate, expand, grow + larger, increase, raise, rise, strengthen, accentuate, grow, add to, deepen, mushroom, intensify, wax, swell, pump up, bump up, step up, spike, crank up, ramp up, move it up + a gear, notch it up + a gear, take it up + a gear, take it up + a notch, crank it up + a notch, crank it up + a gear, move it up + a notch, ratchet up, amp up, turn up.

    Ex: In recent years, the pace of change has accelerated with the introduction of on-line information retrieval.

    Ex: These sources which form the basis of the intellectual selection of terms may be augmented by the machine selection of terms.
    Ex: If the number of categories becomes large, cross-references will be necessary between individual files.
    Ex: An introduction explaining the nature and scope of the indexing language will enhance its value.
    Ex: Here entry is made under the original author of an edition that has been revised, enlarged, updated, condensed, and so on by another person.
    Ex: Over the past two to three years the numbers of full text data bases and data banks has started to escalate considerably.
    Ex: As the quantity of knowledge expands the need to organise it becomes more pressing.
    Ex: As the system grows larger it's more difficult to maintain that control.
    Ex: Recall is inversely proportional to precision, and vice versa, or in other words, as one increases, the other must decrease.
    Ex: The speaker said that James estimated people function at only 20% of their capacity, and concluded that they could raise this percentage considerable if they knew how to manage their time more efficiently.
    Ex: If suppliers are forced out of business, there will be less software to lend and prices will rise with the lack of competition.
    Ex: He proposes a research agenda that could strengthen archival appraisal and the profession's ability to document society.
    Ex: However, future trends may tend to accentuate this division.
    Ex: No true reader can be expected to grow on a diet of prescribed texts only regardless of how well chosen they are.
    Ex: In addition, Britain has one of the most extensive bodies of legislation in the world, which is added to daily and encrusted with myriad rules and regulations.
    Ex: One of the effects of reading in children is that their appreciation of the processes and function of literature is deepened.
    Ex: The use of electronic mail systems has mushroomed in the last 5 years in industrialised nations.
    Ex: Whilst these achievements are commendable, there is a catch in them -- there can be used to 'intensify' the economic exploitation of women.
    Ex: The population waxed again slightly, then waned again, until it finally stabilized around its present 55,000.
    Ex: Reference work has been ill-served in the past by its expositors and theoreticians: its extensive literature of several hundred papers and books is swollen by a mass of the transient and the trivial.
    Ex: The article ' Pump up the program...' identifies the costs and benefits of undertaking a software upgrade.
    Ex: Most librarians will admit that they could probably increase the use made of their lending libraries and bump up their annual loans by stocking more romances and thrillers and fewer serious novels, but they do not do this.
    Ex: The intensity of marketing to schools and parents will have to be stepped up by publishers if they are to succeed in the more competitive market.
    Ex: Baby boomers are desperately trying to hold onto their salad days -- plastic surgery, vitamins and drugs like Viagra have spiked in public demand.
    Ex: Refiners are cranking up diesel output to meet rising global demand.
    Ex: EGND has hit a home run with the introduction of a new product line, increasing sales projections, and ramping up production schedules.
    Ex: Liverpool and Chelsea are grabbing all the headlines, but Arsenal have quietly moved it up a gear scoring 10 goals in their last three league games.
    Ex: Start gently, ease yourself in by breaking the workout down into three one minute sessions until you are ready to notch it up a gear and join them together.
    Ex: There was not much to separate the sides in the first ten minutes however Arsenal took it up a gear and got the goal but not without a bit of luck.
    Ex: We have a good time together and we're good friends.. but I'd like to take it up a notch.
    Ex: David quickly comprehended our project needs and then cranked it up a notch with impactful design.
    Ex: Went for a bike ride with a mate last week, no problems so will crank it up a gear and tackle some hills in the next few weeks.
    Ex: After a regular walking routine is established, why not move it up a notch and start jogging, if you haven't already.
    Ex: The health department has ratcheted up efforts to prevent or slow down the spread of swine flu in schools.
    Ex: In order to gain strength fast, you need to immediately begin amping up your strength thermostat in your mind.
    Ex: Cytokines are small proteins used to communicate messages between the immune cells in the immune system to either turn up or down the immune response.
    * aumentar de importancia = grow in + importance, grow in + significance.
    * aumentar de tamaño = grow in + size, grow + larger, increase in + size.
    * aumentar de valor = increase in + value.
    * aumentar el conocimiento = expand + Posesivo + knowledge, deepen + awareness.
    * aumentar el control = tighten (up) + control.
    * aumentar el esfuerzo = increase + effort.
    * aumentar el precio = mark up + price, jack up + the price.
    * aumentar el presupuesto = add + monies to + budget.
    * aumentar en cantidad = increase in + quantity.
    * aumentar en número = grow in + numbers, increase in + numbers.
    * aumentar en variedad = grow in + kind.
    * aumentar la confusión = add to + the confusion.
    * aumentar la experiencia = deepen + experience.
    * aumentar la productividad = increase + productivity, boost + Posesivo + productivity.
    * aumentar las diferencias entre... y = widen + the gap between... and.
    * aumentar las posibilidades = increase + the odds.
    * aumentar las probabilidades = shorten + the odds.
    * aumentar las ventas = boost + sales.
    * aumentar la velocidad = grow + faster.
    * aumentar los costes = cost + rise.
    * aumentar los impuestos = increase + taxes.
    * aumentar los ingresos = boost + Posesivo + income.
    * aumentar rápidamente = snowball.
    * crisis + aumentar = crisis + deepen.
    * estar aumentando = be on the increase.

    * * *
    aumentar [A1 ]
    vt
    1 ‹precio› to increase, raise, put up; ‹sueldo› to increase, raise; ‹cantidad/velocidad/tamaño› to increase; ‹producción/dosis› to increase, step up
    el microscopio aumenta la imagen the microscope enlarges o magnifies the image
    no hizo más que aumentar su dolor/miedo all it did was increase her pain/fear
    esto aumentó la tensión this added to o increased the tension
    2 ‹puntos› (en tejido) to increase
    ■ aumentar
    vi
    «temperatura» to rise; «presión» to rise, increase; «velocidad» to increase; «precio/producción/valor» to increase, rise
    el niño aumentó 500 gramos the child put on o gained 500 grams
    su popularidad ha aumentado his popularity has grown, he has gained in popularity
    el costo de la vida aumentó en un 3% the cost of living rose by 3%
    la dificultad de los ejercicios va aumentando the exercises get progressively more difficult
    aumentará el frío durante el fin de semana it will become colder over the weekend
    aumentar DE algo to increase IN sth
    aumentó de volumen/tamaño it increased in volume/size
    ha aumentado de peso he's put on o gained weight
    * * *

     

    aumentar ( conjugate aumentar) verbo transitivo

    ‹precio/sueldo› to increase, raise
    b) (Opt) to magnify

    verbo intransitivo [temperatura/presión] to rise;
    [ velocidad] to increase;
    [precio/producción/valor] to increase, rise;

    aumentar de algo ‹de volumen/tamaño› to increase in sth;
    aumentó de peso he put on o gained weight
    aumentar
    I verbo transitivo to increase
    Fot to enlarge
    Ópt to magnify
    II vi (una cantidad) to go up, rise
    (de valor) to appreciate

    ' aumentar' also found in these entries:
    Spanish:
    alargar
    - engordar
    - explorar
    - separar
    - separarse
    - doblar
    - elevar
    - multiplicar
    - redoblar
    English:
    add to
    - appreciate
    - augment
    - boost
    - build up
    - deepen
    - efficiency
    - enhance
    - escalate
    - gain
    - grow
    - heighten
    - improve
    - increase
    - intensify
    - jack up
    - jump
    - magnify
    - mark up
    - mount
    - odds
    - put up
    - quantity
    - raise
    - rise
    - snowball
    - step up
    - surge
    - swell
    - up
    - add
    - develop
    - go
    - put
    - soar
    - strengthen
    * * *
    ♦ vt
    to increase;
    aumentar la producción to increase production;
    los enfrentamientos aumentaron la tensión en la zona the clashes increased the tension in the zone;
    me han aumentado el sueldo my salary has been increased o raised;
    la lente aumenta la imagen the lens magnifies the image;
    aumentó casi 10 kilos he put on almost 10 kilos
    ♦ vi
    [temperatura, precio, gastos, tensión] to increase, to rise; [velocidad] to increase;
    aumentar de tamaño to increase in size;
    aumentar de precio to go up o increase in price;
    el desempleo aumentó en un 4 por ciento unemployment rose o increased by 4 percent;
    con lo que come, no me sorprende que haya aumentado de peso it doesn't surprise me that he's put on weight, considering how much he eats
    * * *
    I v/t increase; precio increase, raise, put up
    II v/i de precio, temperatura rise, increase, go up
    * * *
    acrecentar: to increase, to raise
    : to rise, to increase, to grow
    * * *
    1. (hacer subir) to increase / to raise
    2. (subir) to rise [pt. rose; pp. risen] / to increase
    3. (con lupa, microscopio) to magnify [pt. & pp. magnified]

    Spanish-English dictionary > aumentar

Страницы

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