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cross+wires

  • 41 Hammond, Robert

    [br]
    b. 19 January 1850 Waltham Cross, England
    d. 5 August 1915 London, England
    [br]
    English engineer who established many of the earliest public electricity-supply systems in Britain.
    [br]
    After an education at Nunhead Grammar School, Hammond founded engineering businesses in Middlesbrough and London. Obtaining the first concession from the Anglo- American Brush Company for the exploitation of their system in Britain, he was instrumental in popularizing the Brush arc-lighting generator. Schemes using this system, which he established at Chesterfield, Brighton, Eastbourne and Hastings in 1881–2, were the earliest public electricity-supply ventures in Britain. On the invention of the incandescent lamp, high-voltage Brush dynamos were employed to operate both arc and incandescent lamps. The limitations of this arrangement led Hammond to become the sole agent for the Ferranti alternator, introduced in 1882. Commencing practice as a consulting engineer, Hammond was responsible for the construction of many electricity works in the United Kingdom, of which the most notable were those at Leeds, Hackney (London) and Dublin, in addition to many abroad. Appreciating the need for trained engineers for the new electrical industry and profession then being created, in 1882 he established the Hammond Electrical Engineering College. Later, in association with Francis Ince, he founded Faraday House, a training school that pioneered the concept of "sandwich courses" for engineers. Between 1883 and 1903 he paid several visits to the United States to study developments in electric traction and was one of the advisers to the Postmaster General on the acquisition of the telephone companies.
    [br]
    Bibliography
    1884, Electric Light in Our Homes, London (one of the first detailed accounts of electric lighting).
    1897, "Twenty five years" developments in central stations', Electrical Review 41:683–7 (surveys nineteenth-century public electricity supply).
    Further Reading
    F.W.Lipscomb, 1973, The Wise Men of the Wires, London (the story of Faraday House). B.Bowers, 1985, biography, in Dictionary of Business Biography, Vol. III, ed. J.Jeremy, London, pp. 21–2 (provides an account of Hammond's business ventures). J.D.Poulter, 1986, An Early History of 'Electricity Supply, London.
    GW

    Biographical history of technology > Hammond, Robert

  • 42 Smith, Willoughby

    [br]
    b. 16 April 1828 Great Yarmouth, England
    d. 17 July 1891 Eastbourne, England
    [br]
    English engineer of submarine telegraph cables who observed that light reduced the resistance of selenium.
    [br]
    Smith joined the Gutta Percha Company, London, in 1848 and successfully experimented with the use of gutta-percha, a natural form of latex, for the insulation of conducting wires. As a result, he was made responsible for the laying of the first cross-Channel cable between Dover and Calais in 1850. Four years later he laid the first Mediterranean cable between Spezia, Italy, and Corsica and Sardinia, later extending it to Algeria. On its completion he became Manager of the Gutta Percha works, which in 1864 became the Telegraph and Construction Company. In 1865 he assisted on board the Great Eastern with the laying of the transatlantic cable by Bright.
    Clearly his management responsibilities did not stop him from experimenting practically. In 1866 he discovered that the resistance of a selenium rod was reduced by the action of incident light, an early discovery of the photoelectric effect more explicitly observed by Hertz and subsequently explained by Einstein. In 1883 he read a paper to the Society of Telegraph Engineers (later the Institution of Electrical Engineers), suggesting the possibility of wireless communication with moving trains, an idea that was later successfully taken up by others, and in 1888 he demonstrated the use of water as a practical means of communication with a lighthouse. Four years later, after his death, the system was tried between Alum Bay and the Needles in the Isle of Wight, and it was used subsequently for the Fastnet Rock lighthouse some 10 miles (16 km) off the south-west coast of Ireland.
    [br]
    Principal Honours and Distinctions
    Founder and Council Member of the Society of Telegraph Engineers 1871; President 1873.
    Bibliography
    The effect of light on the resistance of selenium was reported in a letter to the Vice- Chairman of the Society of Telegraph Engineers on 4 February 1873.
    7 June 1897, British patent no. 8,159 (the use of water, instead of cable, as a conductor).
    November 1888, article in Electrician (describes his idea of using water as a conductor, rather than cable).
    Further Reading
    E.Hawkes, 1927, Pioneers of Wireless, London: Methuen.
    C.T.Bright, 1898, Submarine Cables, Their History, Construction and Working.
    KF

    Biographical history of technology > Smith, Willoughby

  • 43 aneinander vorbei reden

    to get one's wires crossed coll.
    to talk at cross purposes

    Deutsch-Englisches Wörterbuch > aneinander vorbei reden

  • 44 قطع

    قَطَعَ \ cover: to travel a certain distance: We covered 300 miles in a day. cut: to separate, wound or treat with sth. sharp, esp. with a knife: I cut a branch off the tree. Please cut this apple in half. cut down: to cause to fall: He cut the tree down. cut off: to remove by cutting: He cut off the branch, to stop Our electricity supply was cut off till we paid the bill. cut short: to shorten: He cut short his visit because he felt ill. interrupt: to stop; prevent for a short time: The electricity supply was interrupted by the storm. sever: to cut through (or cut off) violently and completely: He severed the rope with a knife. His left arm was severed in the accident. shut off: to stop a supply: The water was shut off because the pipe burst. strike off: to cut off with a sharp blow: He struck the branch off with an axe. \ See Also اجتاز (اِجْتَازَ)، قصر (قَصَّرَ)، أَعَاقَ، منع (مَنَعَ)‏ \ قَطَعَ (بانصهار الفصَّال)‏ \ fuse: (of electrical things) to stop when the fuse melts; cause (sth. electrical) to stop in this way: The lights have fused. A worn wire in the radio fused the lights. \ See Also اِنْقَطَعَ التَّيار \ قَطَعَ الاتصال \ disconnect: to separate; pull out the wires of (sth. electrical) which join it to the main supply: The doctor disconnected the machine. \ قَطَعَ الأمل \ despair: to cease hoping: We despaired of finding our stolen car. \ See Also يئس (يَئِسَ)‏ \ قَطَعَ بعضُه بعضًا \ cross: (of letters, roads, travellers, etc.) to meet and pass, going in different directions: Our letters crossed in the post. \ See Also تقاطع (تَقاطَع)‏ \ قَطَعَ بفأس \ hew: to cut (with an axe, sword, etc.). \ قَطَعَ بالمِنْشار \ saw: to cut with a saw. \ قَطَعَ الشجرة \ chop down: to cause to fall by chopping: The men chopped down several trees. \ قَطَعَ الطريق على... \ intercept: to stop or catch sb. or sth. on the way: their secret message (or messenger) was intercepted by the police. One of their team intercepted the ball before it reached me. \ قَطَعَ على نَفْسِه عهدًا \ vow: to promise solemnly.

    Arabic-English dictionary > قطع

  • 45 многопроволочная жила

    1. stranded wire
    2. stranded conductor
    3. multi-stranded wire
    4. multi-stranded conductor

     

    многопроволочная жила
    многопроволочный проводник
    Токопроводящая жила (проводник) состоящая (ий) из двух и более скрученных проволок или стренг.
    [ ГОСТ 15845-80]

    многопроволочная жила
    токопроводящая жила, состоящая из ряда отдельных проволок, или стренг все или некоторые из которых имеют обычно спиральную форму
    Примечания:
    1. Многопроволочная жила может быть круглого или фасонного сечения
    2. Английский термин «strand» применяется также для обозначения одиночной проволоки
    [IEV number 461-01-07]

    EN

    stranded conductor
    conductor consisting of a number of individual wires or strands all or some of which generally have a helical form
    NOTE 1 – The cross section of a stranded conductor may be circular or otherwise shaped.
    NOTE 2 – The term “strand” is also used to designate a single wire.
    [IEV number 461-01-07]

    FR

    âme câblée
    âme constituée d'un ensemble de fils dont généralement la plupart ont la forme d'une hélice
    NOTE 1 – L'âme câblée peut être circulaire ou profilée.
    NOTE 2 – Le terme anglais «strand» est également utilisé pour désigner un fil unique.
    [IEV number 461-01-07]


    3982

    Недопустимые, нерекомендуемые

    Тематики

    • кабели, провода...

    Синонимы

    EN

    DE

    • verseilter Leiter, m

    FR

    Русско-английский словарь нормативно-технической терминологии > многопроволочная жила

  • 46 тонкостенная металлическая труба для электропроводки

    1. intermediate metal conduit
    2. IMC
    3. EMT
    4. electrical metallic tubing

     

    тонкостенная металлическая труба для электропроводки
    -

    EN

    electrical metallic tubing
    A thin-walled metal raceway having a circular cross section; used to pull in or withdraw electric cables or wires after the tubing is installed in place; uses connectors and couplings other than the threaded type.
    [ http://www.answers.com/topic/electrical-metallic-tubing-1]

    intermediate metal conduit
    IMC
    -

    Intermediate metal conduit, or IMC for short, is a rigid steel electrical conduit that is lighter in weight than another rigid conduit. It was designed specifically to protect insulated electrical conductors and cables. It does the work of a similar conduit, galvanized rigid conduit (GRC), but with much less weight and thickness size. By utilizing IMC in areas allowed, you can all but eliminate the need for a heavier wall conduit.

    IMC has other advantages over GRC. It has a larger interior diameter than Galvanized Rigid Conduit and the smoother interior of the pipe allows for easier wire pulling through the conduit.

    IMC was originally introduced by Allied Tube & Conduit Corporation. It is manufactured in accordance with Underwriters’ Laboratories safety standard 1242 and ANSI C80.6. Believe it or not, Allied claims that IMC is actually more rigid than GRC in applications such as service masts and other installations. It has been installed in industrial and commercial buildings. In fact, the National Electrical Code has a specific article about IMC, article 342.

    IMC conduit is coated in a hot galvanized coating on the exterior and a special corrosive-resistant coating on the inside to extend the conduit’s lifespan for reliability. Common conduit sizes range from ½” to 4”.

    [ http://electrical.about.com/od/metalpvcconduit/a/IMCconduit.htm]

    Тематики

    • электропроводка, электромонтаж

    EN

    Русско-английский словарь нормативно-технической терминологии > тонкостенная металлическая труба для электропроводки

Страницы

См. также в других словарях:

  • Cross wires — Cross Cross (kr[o^]s), a. 1. Not parallel; lying or falling athwart; transverse; oblique; intersecting. [1913 Webster] The cross refraction of the second prism. Sir I. Newton. [1913 Webster] 2. Not accordant with what is wished or expected;… …   The Collaborative International Dictionary of English

  • cross wires — Optics. See cross hairs (def. 1). [1865 70] * * * …   Universalium

  • cross wires — Optics. See cross hairs (def. 1). [1865 70] …   Useful english dictionary

  • Parallax of the cross wires — Parallax Par al*lax, n. [Gr. ? alternation, the mutual inclination of two lines forming an angle, fr. ? to change a little, go aside, deviate; para beside, beyond + ? to change: cf. F. parallaxe. Cf. {Parallel}.] 1. The apparent displacement, or… …   The Collaborative International Dictionary of English

  • Cross — (kr[o^]s), a. 1. Not parallel; lying or falling athwart; transverse; oblique; intersecting. [1913 Webster] The cross refraction of the second prism. Sir I. Newton. [1913 Webster] 2. Not accordant with what is wished or expected; interrupting;… …   The Collaborative International Dictionary of English

  • Cross action — Cross Cross (kr[o^]s), a. 1. Not parallel; lying or falling athwart; transverse; oblique; intersecting. [1913 Webster] The cross refraction of the second prism. Sir I. Newton. [1913 Webster] 2. Not accordant with what is wished or expected;… …   The Collaborative International Dictionary of English

  • Cross aisle — Cross Cross (kr[o^]s), a. 1. Not parallel; lying or falling athwart; transverse; oblique; intersecting. [1913 Webster] The cross refraction of the second prism. Sir I. Newton. [1913 Webster] 2. Not accordant with what is wished or expected;… …   The Collaborative International Dictionary of English

  • Cross axle — Cross Cross (kr[o^]s), a. 1. Not parallel; lying or falling athwart; transverse; oblique; intersecting. [1913 Webster] The cross refraction of the second prism. Sir I. Newton. [1913 Webster] 2. Not accordant with what is wished or expected;… …   The Collaborative International Dictionary of English

  • Cross bedding — Cross Cross (kr[o^]s), a. 1. Not parallel; lying or falling athwart; transverse; oblique; intersecting. [1913 Webster] The cross refraction of the second prism. Sir I. Newton. [1913 Webster] 2. Not accordant with what is wished or expected;… …   The Collaborative International Dictionary of English

  • Cross bill — Cross Cross (kr[o^]s), a. 1. Not parallel; lying or falling athwart; transverse; oblique; intersecting. [1913 Webster] The cross refraction of the second prism. Sir I. Newton. [1913 Webster] 2. Not accordant with what is wished or expected;… …   The Collaborative International Dictionary of English

  • Cross bitt — Cross Cross (kr[o^]s), a. 1. Not parallel; lying or falling athwart; transverse; oblique; intersecting. [1913 Webster] The cross refraction of the second prism. Sir I. Newton. [1913 Webster] 2. Not accordant with what is wished or expected;… …   The Collaborative International Dictionary of English

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