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association+of+american+railroads

  • 1 Association of American Railroads

    Универсальный русско-английский словарь > Association of American Railroads

  • 2 The Association Of American Railroads

    Railway term: AAR

    Универсальный русско-английский словарь > The Association Of American Railroads

  • 3 American Railroads

    Универсальный русско-английский словарь > American Railroads

  • 4 Американская ассоциация железнодорожников

    Универсальный русско-английский словарь > Американская ассоциация железнодорожников

  • 5 Ассоциация Американских железных дорог

    Универсальный русско-английский словарь > Ассоциация Американских железных дорог

  • 6 Janney, Eli Hamilton

    [br]
    b. 12 November 1831 Loudoun County, Virginia, USA
    d. 16 June 1912 Alexandria, Virginia, USA
    [br]
    American inventor of buckeye coupling for railway vehicles.
    [br]
    Early American railways used link-and-pin couplings, with consequent danger to life and limb of those who had to go between vehicles to couple and uncouple them. Many inventors tried to produce a coupling that would couple automatically and could be uncoupled from the trackside, and Janney was eventually successful in achieving this. He invented his device, which worked like the hooked fingers of two hands, in 1868, and after improvement it was adopted by the Pennsylvania Railroad in 1874. Janney formed the Janney Car Coupling Company, but it was not until 1888 that the Master Car Builders' Association made the Janney coupling standard on American railways. Automatic couplings were made compulsory in the USA by the Railroad Safety Appliance Act of 1893.
    [br]
    Bibliography
    Janney took out five US patents for automatic couplings between 1868 and 1882.
    Further Reading
    J.F.Stover, 1961, American Railroads, Chicago: University of Chicago Press, pp. 152ö4.
    PJGR

    Biographical history of technology > Janney, Eli Hamilton

  • 7 Stevens, John

    [br]
    b. 1749 New York, New York, USA
    d. 6 March 1838 Hoboken, New Jersey, USA
    [br]
    American pioneer of steamboats and railways.
    [br]
    Stevens, a wealthy landowner with an estate at Hoboken on the Hudson River, had his attention drawn to the steamboat of John Fitch in 1786, and thenceforth devoted much of his time and fortune to developing steamboats and mechanical transport. He also had political influence and it was at his instance that Congress in 1790 passed an Act establishing the first patent laws in the USA. The following year Stevens was one of the first recipients of a US patent. This referred to multi-tubular boilers, of both watertube and firetube types, and antedated by many years the work of both Henry Booth and Marc Seguin on the latter.
    A steamboat built in 1798 by John Stevens, Nicholas J.Roosevelt and Stevens's brother-in-law, Robert R.Livingston, in association was unsuccessful, nor was Stevens satisfied with a boat built in 1802 in which a simple rotary steam-en-gine was mounted on the same shaft as a screw propeller. However, although others had experimented earlier with screw propellers, when John Stevens had the Little Juliana built in 1804 he produced the first practical screw steamboat. Steam at 50 psi (3.5 kg/cm2) pressure was supplied by a watertube boiler to a single-cylinder engine which drove two contra-rotating shafts, upon each of which was mounted a screw propeller. This little boat, less than 25 ft (7.6 m) long, was taken backwards and forwards across the Hudson River by two of Stevens's sons, one of whom, R.L. Stevens, was to help his father with many subsequent experiments. The boat, however, was ahead of its time, and steamships were to be driven by paddle wheels until the late 1830s.
    In 1807 John Stevens declined an invitation to join with Robert Fulton and Robert R.Living-ston in their development work, which culminated in successful operation of the PS Clermont that summer; in 1808, however, he launched his own paddle steamer, the Phoenix. But Fulton and Livingston had obtained an effective monopoly of steamer operation on the Hudson and, unable to reach agreement with them, Stevens sent Phoenix to Philadelphia to operate on the Delaware River. The intervening voyage over 150 miles (240 km) of open sea made Phoenix the first ocean-going steamer.
    From about 1810 John Stevens turned his attention to the possibilities of railways. He was at first considered a visionary, but in 1815, at his instance, the New Jersey Assembly created a company to build a railway between the Delaware and Raritan Rivers. It was the first railway charter granted in the USA, although the line it authorized remained unbuilt. To demonstrate the feasibility of the steam locomotive, Stevens built an experimental locomotive in 1825, at the age of 76. With flangeless wheels, guide rollers and rack-and-pinion drive, it ran on a circular track at his Hoboken home; it was the first steam locomotive to be built in America.
    [br]
    Bibliography
    1812, Documents Tending to Prove the Superior Advantages of Rail-ways and Steam-carriages over Canal Navigation.
    He took out patents relating to steam-engines in the USA in 1791, 1803, and 1810, and in England, through his son John Cox Stevens, in 1805.
    Further Reading
    H.P.Spratt, 1958, The Birth of the Steamboat, Charles Griffin (provides technical details of Stevens's boats).
    J.T.Flexner, 1978, Steamboats Come True, Boston: Little, Brown (describes his work in relation to that of other steamboat pioneers).
    J.R.Stover, 1961, American Railroads, Chicago: University of Chicago Press.
    Transactions of the Newcomen Society (1927) 7: 114 (discusses tubular boilers).
    J.R.Day and B.G.Wilson, 1957, Unusual Railways, F.Muller (discusses Stevens's locomotive).
    PJGR

    Biographical history of technology > Stevens, John

См. также в других словарях:

  • Association Of American Railroads — Pour les articles homonymes, voir AAR. L’Association of American Railroads (abrégée AAR que l on peut traduire par Association des chemins de fer américains) est un regroupement des principales compagnies ferroviaires d Amérique du Nord (Canada,… …   Wikipédia en Français

  • Association of american railroads — Pour les articles homonymes, voir AAR. L’Association of American Railroads (abrégée AAR que l on peut traduire par Association des chemins de fer américains) est un regroupement des principales compagnies ferroviaires d Amérique du Nord (Canada,… …   Wikipédia en Français

  • Association of American Railroads — The Association of American Railroads is an industry trade group representing primarily the major freight railroads of North America (Canada, Mexico and the United States). Amtrak and some regional commuter railroads are also members. Smaller… …   Wikipedia

  • Association of American Railroads — Logo Die Association of American Railroads (AAR) ist die Industrievereinigung der großen Gütereisenbahnen von Nordamerika (Kanada, Mexiko und den Vereinigten Staaten). Die Amtrak und einige weitere regionale Eisenbahnen sind ebenfalls Mitglieder …   Deutsch Wikipedia

  • Association of American Railroads — Pour les articles homonymes, voir AAR. L’Association of American Railroads (abrégée AAR que l on peut traduire par Association des chemins de fer américains) est un regroupement des principales compagnies ferroviaires d Amérique du Nord (Canada,… …   Wikipédia en Français

  • Sigle de l'Association of American Railroads — L Association of American Railroads (AAR) assigne un sigle à toutes les entreprises ferroviaires opérant en Amérique du Nord. Pratiques standard Un sigle de l AAR est une séquence de deux à quatre lettres identifiant de façon unique le… …   Wikipédia en Français

  • Sigle de l'association of american railroads — L Association of American Railroads (AAR) assigne un sigle à toutes les entreprises ferroviaires opérant en Amérique du Nord. Pratiques standard Un sigle de l AAR est une séquence de deux à quatre lettres identifiant de façon unique le… …   Wikipédia en Français

  • American Railway Engineering and Maintenance-of-Way Association — The American Railway Engineering and Maintenance of Way Association (AREMA) is a North American railway industry group. It publishes recommended practices for the design, construction and maintenance of railway infrastructure, which are… …   Wikipedia

  • American Railway Association — The American Railway Association (ARA) was an industry trade group representing railroads in the United States. The organization had its inception in meetings of General Managers and ranking railroad operating officials known as Time Table… …   Wikipedia

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