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chemical promoter

  • 1 chemical promoter

    Англо-русский металлургический словарь > chemical promoter

  • 2 chemical promoter

    Универсальный англо-русский словарь > chemical promoter

  • 3 chemical promoter

    Англо-русский словарь нефтегазовой промышленности > chemical promoter

  • 4 promoter

    1. активатор, возбудитель, инициатор

    promoter of polymerization активатор полимеризации

    promoter of vulcanization активатор вулканизации

    catalyst promoter активатор катализатора

    chemical promoter активатор химической реакции

    English-Russian dictionary of aviation and space materials > promoter

  • 5 promoter

    I
    மேம்படுத்துநர்
    II
    தூண்டி
    ஊக்குவிப்பவர்
    IV
    வினைஊக்கி

    English-Tamil dictionary > promoter

  • 6 Bissell, George Henry

    [br]
    b. 8 November 1821 Hanover, New Hampshire, USA
    d. 19 November 1884 New York, USA
    [br]
    American promoter of the petroleum industry.
    [br]
    Bissell first pursued a career in education, as Professor of Languages at the University of Norwich, Vermont, and then as Superintendent of Schools in New Orleans. After dabbling in journalism, he turned to law and was admitted to the Bar in New York City in 1853. The following year he was deeply impressed by the picture of a derrick on the label on a bottle of brine from Samuel M.Kier's brine well. Bissell saw in it a new possibility of producing petroleum and, with Jonathan G.Elveleth, formed the world's first oil company, the Pennsylvania Rock Oil Company, on 30 December 1854. The Company obtained a sample of oil at Hibbard Farm, Titusville, Pennsylvania, and sent it for examination to Benjamin Silliman Jr, Professor of Chemistry at Yale University. He reported on 16 April 1855 that by simple means nearly all the oil could be converted into useful substances. Bissell acted on this and began drilling near Oil Creek, Pennsylvania. On 27 August 1859 his contractor struck oil at 60 ft (18 m). This date is usually taken as the starting point of the modern oil industry, even though oil had been obtained two years earlier in Europe by drilling near Hannover and at Ploesti in Romania. Bissell returned to New York in 1863 and spent the rest of his life promoting enterprises connected with the oil industry.
    [br]
    Further Reading
    Obituary, 1884, New York Herald, 20 November.
    W.B.Kaempffert, 1924, A Popular History of American Inventions, New York. I.M.Tarbell, 1904, History of the Standard Oil Company, New York.
    LRD

    Biographical history of technology > Bissell, George Henry

  • 7 Ravenscroft, George

    [br]
    b. 1632 Alconbury, Huntingdonshire, England
    d. 7 June 1683 Barnet, Hertfordshire, England
    [br]
    English inventor of lead-crystal glass.
    [br]
    George's father James was a successful lawyer and merchant, engaging in overseas trade.
    A devout but necessarily circumspect Catholic, James sent his sons to the English College at Douai, now in northern France. Leaving there in 1651, George began to learn his father's business and spent some fifteen years in Venice. He took an increasingly important part in it, doubtless dealing in Venice's leading products of lace and glass. By 1666 he was back in England and, perhaps because the supply of Venetian glass was beginning to decline, he started to manufacture glass himself. In 1673 he set up a glassworks in the Savoy in London and succeeded so well that in the following year he petitioned the King for the grant of a patent to make glassware. This was granted on 16 May 1674, stimulating the Glass Sellers' Company to enter into an agreement with Ravenscroft to buy the glassware he produced. Later in 1674 the company allowed Ravenscroft to establish a second glasshouse at Henley-onThames. At first his ware was beset with "crizzling", i.e. numerous fine surface cracks. The Glass Sellers probably urged Ravenscroft to cure this defect, and this he achieved in 1675 by replacing crushed flint with increasing amounts of lead oxide, rising finally to a content of 30 per cent. He thereby obtained a relatively soft, heavy glass with high refractive index and dispersive power. This made it amenable to deep cutting, to produce the brilliant prismatic effects of cut glass. At about the same time, the Duke of Buckingham, a considerable promoter of the glass industry, agreed that Ravenscroft should manage his works at Vauxhall for the making of plate glass for mirrors. Ravenscroft terminated his agreement with the Glass Sellers in 1678, the date of the last evidence of his activities as a maker of crystal glass, and the patent expired in 1681. His new glass had immediately rivalled the best Venetian crystal glass and has been a valued product ever since.
    [br]
    Further Reading
    R.F.Moody, 1988, The life of George Ravenscroft', Glass Technology 29 (1):198–210;
    Glass Technology 30(5):191–2 (additional notes on his life).
    LRD

    Biographical history of technology > Ravenscroft, George

См. также в других словарях:

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  • RNA polymerase — RNAP from T. aquaticus pictured during elongation. Portions of the enzyme were made transparent so as to make the path of RNA and DNA more clear. The magnesium ion (yellow) is located at the enzyme active site. RNA polymerase (RNAP or RNApol) is… …   Wikipedia

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