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  • 41 Johnson, Thomas

    SUBJECT AREA: Textiles
    [br]
    fl. 1800s England
    d. after 1846
    [br]
    English developer of the sizing and beaming machine, and improver of the hand loom.
    [br]
    Thomas Johnson was an assistant to William Radcliffe c.1802 in his developments of the sizing machine and hand looms. Johnson is described by Edward Baines (1835) as "an ingenious but dissipated young man to whom he [Radcliffe] explained what he wanted, and whose fertile invention suggested a great variety of expedients, so that he obtained the name of the “conjuror” among his fellow-workmen". Johnson's genius, and Radcliffe's judgement and perseverance, at length produced the dressing-machine that was soon applied to power looms and made their use economic. Cotton warps had to be dressed with a starch paste to prevent them from fraying as they were being woven. Up to this time, the paste had had to be applied as the warp was unwound from the back of the loom, which meant that only short lengths could be treated and then left to dry, holding up the weaver. Radcliffe carried out the dressing and beaming in a separate machine so that weaving could proceed without interruption. Work on the dressing-machine was carried out in 1802 and patents were taken out in 1803 and 1804. These were made out in Johnson's name because Radcliffe was afraid that if his own name were used other people, particularly foreigners, would discover his secrets. Two more patents were taken out for improvements to hand looms. The first of these was a take-up motion for the woven cloth that automatically wound the cloth onto a roller as the weaver operated the loom. This was later incorporated by H.Horrocks into his own power loom design.
    Radcliffe and Johnson also developed the "dandy-loom", which was a more compact form of hand loom and later became adapted for weaving by power. Johnson was the inventor of the first circular or revolving temples, which kept the woven cloth at the right width. In the patent specifications there is a patent in 1805 by Thomas Johnson and James Kay for an improved power loom and another in 1807 for a vertical type of power loom. Johnson could have been involved with further patents in the 1830s and 1840s for vertical power looms and dressing-machines, which would put his death after 1846.
    [br]
    Bibliography
    1802, British patent no. 2,684 (dressing-machine).
    1803, British patent no. 2,771 (dressing-machine).
    1805, with James Kay, British patent no. 2,876 (power-loom). 1807, British patent no. 6,570 (vertical powerloom).
    Further Reading
    There is no general account of Johnson's life, but references to his work with Radcliffe may be found in A.Barlow, 1878, The History and Principles of Weaving by Hand and by Power, London; and in E.Baines, 1835, History of the Cotton Manufacture in Great Britain, London.
    D.J.Jeremy, 1981, Transatlantic Industrial Revolution. The Diffusion of Textile Technologies Between Britain and America, 1790–1830s, Oxford (for the impact of the dressing-machine in America).
    RLH

    Biographical history of technology > Johnson, Thomas

  • 42 Arnold, Aza

    SUBJECT AREA: Textiles
    [br]
    b. 4 October 1788 Smithfield, Pawtucket, Rhode Island, USA
    d. 1865 Washington, DC, USA
    [br]
    American textile machinist who applied the differential motion to roving frames, solving the problem of winding on the delicate cotton rovings.
    [br]
    He was the son of Benjamin and Isabel Arnold, but his mother died when he was 2 years old and after his father's second marriage he was largely left to look after himself. After attending the village school he learnt the trade of a carpenter, and following this he became a machinist. He entered the employment of Samuel Slater, but left after a few years to engage in the unsuccessful manufacture of woollen blankets. He became involved in an engineering shop, where he devised a machine for taking wool off a carding machine and making it into endless slivers or rovings for spinning. He then became associated with a cotton-spinning mill, which led to his most important invention. The carded cotton sliver had to be reduced in thickness before it could be spun on the final machines such as the mule or the waterframe. The roving, as the mass of cotton fibres was called at this stage, was thin and very delicate because it could not be twisted to give strength, as this would not allow it to be drawn out again during the next stage. In order to wind the roving on to bobbins, the speed of the bobbin had to be just right but the diameter of the bobbin increased as it was filled. Obtaining the correct reduction in speed as the circumference increased was partially solved by the use of double-coned pulleys, but the driving belt was liable to slip owing to the power that had to be transmitted.
    The final solution to the problem came with the introduction of the differential drive with bevel gears or a sun-and-planet motion. Arnold had invented this compound motion in 1818 but did not think of applying it to the roving frame until 1820. It combined the direct-gearing drive from the main shaft of the machine with that from the cone-drum drive so that the latter only provided the difference between flyer and bobbin speeds, which meant that most of the transmission power was taken away from the belt. The patent for this invention was issued to Arnold on 23 January 1823 and was soon copied in Britain by Henry Houldsworth, although J.Green of Mansfield may have originated it independendy in the same year. Arnold's patent was widely infringed in America and he sued the Proprietors of the Locks and Canals, machine makers for the Lowell manufacturers, for $30,000, eventually receiving $3,500 compensation. Arnold had his own machine shop but he gave it up in 1838 and moved the Philadelphia, where he operated the Mulhausen Print Works. Around 1850 he went to Washington, DC, and became a patent attorney, remaining as such until his death. On 24 June 1856 he was granted patent for a self-setting and self-raking saw for sawing machines.
    [br]
    Bibliography
    28 June 1856, US patent no. 15,163 (self-setting and self-raking saw for sawing machines).
    Further Reading
    Dictionary of American Biography, Vol. 1.
    W.English, 1969, The Textile Industry, London (a description of the principles of the differential gear applied to the roving frame).
    D.J.Jeremy, 1981, Transatlantic Industrial Revolution. The Diffusion of Textile Technologies Between Britain and America, 1790–1830, Oxford (a discussion of the introduction and spread of Arnold's gear).
    RLH

    Biographical history of technology > Arnold, Aza

  • 43 Berliner, Emile

    SUBJECT AREA: Recording
    [br]
    b. 20 May 1851 Hannover, Germany
    d. 3 August 1929 Montreal, Canada
    [br]
    German (naturalized American) inventor, developer of the disc record and lateral mechanical replay.
    [br]
    After arriving in the USA in 1870 and becoming an American citizen, Berliner worked as a dry-goods clerk in Washington, DC, and for a period studied electricity at Cooper Union for the Advancement of Science and Art, New York. He invented an improved microphone and set up his own experimental laboratory in Washington, DC. He developed a microphone for telephone use and sold the rights to the Bell Telephone Company. Subsequently he was put in charge of their laboratory, remaining in that position for eight years. In 1881 Berliner, with his brothers Joseph and Jacob, founded the J.Berliner Telephonfabrik in Hanover, the first factory in Europe specializing in telephone equipment.
    Inspired by the development work performed by T.A. Edison and in the Volta Laboratory (see C.S. Tainter), he analysed the existing processes for recording and reproducing sound and in 1887 developed a process for transferring lateral undulations scratched in soot into an etched groove that would make a needle and diaphragm vibrate. Using what may be regarded as a combination of the Phonautograph of Léon Scott de Martinville and the photo-engraving suggested by Charles Cros, in May 1887 he thus demonstrated the practicability of the laterally recorded groove. He termed the apparatus "Gramophone". In November 1887 he applied the principle to a glass disc and obtained an inwardly spiralling, modulated groove in copper and zinc. In March 1888 he took the radical step of scratching the lateral vibrations directly onto a rotating zinc disc, the surface of which was protected, and the subsequent etching created the groove. Using well-known principles of printing-plate manufacture, he developed processes for duplication by making a negative mould from which positive copies could be pressed in a thermoplastic compound. Toy gramophones were manufactured in Germany from 1889 and from 1892–3 Berliner manufactured both records and gramophones in the USA. The gramophones were hand-cranked at first, but from 1896 were based on a new design by E.R. Johnson. In 1897–8 Berliner spread his activities to England and Germany, setting up a European pressing plant in the telephone factory in Hanover, and in 1899 a Canadian company was formed. Various court cases over patents removed Berliner from direct running of the reconstructed companies, but he retained a major economic interest in E.R. Johnson's Victor Talking Machine Company. In later years Berliner became interested in aeronautics, in particular the autogiro principle. Applied acoustics was a continued interest, and a tile for controlling the acoustics of large halls was successfully developed in the 1920s.
    [br]
    Bibliography
    16 May 1888, Journal of the Franklin Institute 125 (6) (Lecture of 16 May 1888) (Berliner's early appreciation of his own work).
    1914, Three Addresses, privately printed (a history of sound recording). US patent no. 372,786 (basic photo-engraving principle).
    US patent no. 382,790 (scratching and etching).
    US patent no. 534,543 (hand-cranked gramophone).
    Further Reading
    R.Gelatt, 1977, The Fabulous Phonograph, London: Cassell (a well-researched history of reproducible sound which places Berliner's contribution in its correct perspective). J.R.Smart, 1985, "Emile Berliner and nineteenth-century disc recordings", in Wonderful
    Inventions, ed. Iris Newson, Washington, DC: Library of Congress, pp. 346–59 (provides a reliable account).
    O.Read and W.L.Welch, 1959, From Tin Foil to Stereo, Indianapolis: Howard W.Sams, pp. 119–35 (provides a vivid account, albeit with less precision).
    GB-N

    Biographical history of technology > Berliner, Emile

  • 44 De Forest, Lee

    [br]
    b. 26 August 1873 Council Bluffs, Iowa, USA
    d. 30 June 1961 Hollywood, California, USA
    [br]
    American electrical engineer and inventor principally known for his invention of the Audion, or triode, vacuum tube; also a pioneer of sound in the cinema.
    [br]
    De Forest was born into the family of a Congregational minister that moved to Alabama in 1879 when the father became President of a college for African-Americans; this was a position that led to the family's social ostracism by the white community. By the time he was 13 years old, De Forest was already a keen mechanical inventor, and in 1893, rejecting his father's plan for him to become a clergyman, he entered the Sheffield Scientific School of Yale University. Following his first degree, he went on to study the propagation of electromagnetic waves, gaining a PhD in physics in 1899 for his thesis on the "Reflection of Hertzian Waves from the Ends of Parallel Wires", probably the first US thesis in the field of radio.
    He then joined the Western Electric Company in Chicago where he helped develop the infant technology of wireless, working his way up from a modest post in the production area to a position in the experimental laboratory. There, working alone after normal working hours, he developed a detector of electromagnetic waves based on an electrolytic device similar to that already invented by Fleming in England. Recognizing his talents, a number of financial backers enabled him to set up his own business in 1902 under the name of De Forest Wireless Telegraphy Company; he was soon demonstrating wireless telegraphy to interested parties and entering into competition with the American Marconi Company.
    Despite the failure of this company because of fraud by his partners, he continued his experiments; in 1907, by adding a third electrode, a wire mesh, between the anode and cathode of the thermionic diode invented by Fleming in 1904, he was able to produce the amplifying device now known as the triode valve and achieve a sensitivity of radio-signal reception much greater than possible with the passive carborundum and electrolytic detectors hitherto available. Patented under the name Audion, this new vacuum device was soon successfully used for experimental broadcasts of music and speech in New York and Paris. The invention of the Audion has been described as the beginning of the electronic era. Although much development work was required before its full potential was realized, the Audion opened the way to progress in all areas of sound transmission, recording and reproduction. The patent was challenged by Fleming and it was not until 1943 that De Forest's claim was finally recognized.
    Overcoming the near failure of his new company, the De Forest Radio Telephone Company, as well as unsuccessful charges of fraudulent promotion of the Audion, he continued to exploit the potential of his invention. By 1912 he had used transformer-coupling of several Audion stages to achieve high gain at radio frequencies, making long-distance communication a practical proposition, and had applied positive feedback from the Audion output anode to its input grid to realize a stable transmitter oscillator and modulator. These successes led to prolonged patent litigation with Edwin Armstrong and others, and he eventually sold the manufacturing rights, in retrospect often for a pittance.
    During the early 1920s De Forest began a fruitful association with T.W.Case, who for around ten years had been working to perfect a moving-picture sound system. De Forest claimed to have had an interest in sound films as early as 1900, and Case now began to supply him with photoelectric cells and primitive sound cameras. He eventually devised a variable-density sound-on-film system utilizing a glow-discharge modulator, the Photion. By 1926 De Forest's Phonofilm had been successfully demonstrated in over fifty theatres and this system became the basis of Movietone. Though his ideas were on the right lines, the technology was insufficiently developed and it was left to others to produce a system acceptable to the film industry. However, De Forest had played a key role in transforming the nature of the film industry; within a space of five years the production of silent films had all but ceased.
    In the following decade De Forest applied the Audion to the development of medical diathermy. Finally, after spending most of his working life as an independent inventor and entrepreneur, he worked for a time during the Second World War at the Bell Telephone Laboratories on military applications of electronics.
    [br]
    Principal Honours and Distinctions
    Institute of Electronic and Radio Engineers Medal of Honour 1922. President, Institute of Electronic and Radio Engineers 1930. Institute of Electrical and Electronics Engineers Edison Medal 1946.
    Bibliography
    1904, "Electrolytic detectors", Electrician 54:94 (describes the electrolytic detector). 1907, US patent no. 841,387 (the Audion).
    1950, Father of Radio, Chicago: WIlcox \& Follett (autobiography).
    De Forest gave his own account of the development of his sound-on-film system in a series of articles: 1923. "The Phonofilm", Transactions of the Society of Motion Picture Engineers 16 (May): 61–75; 1924. "Phonofilm progress", Transactions of the Society of Motion Picture Engineers 20:17–19; 1927, "Recent developments in the Phonofilm", Transactions of the Society of Motion Picture Engineers 27:64–76; 1941, "Pioneering in talking pictures", Journal of the Society of Motion Picture Engineers 36 (January): 41–9.
    Further Reading
    G.Carneal, 1930, A Conqueror of Space (biography).
    I.Levine, 1964, Electronics Pioneer, Lee De Forest (biography).
    E.I.Sponable, 1947, "Historical development of sound films", Journal of the Society of Motion Picture Engineers 48 (April): 275–303 (an authoritative account of De Forest's sound-film work, by Case's assistant).
    W.R.McLaurin, 1949, Invention and Innovation in the Radio Industry.
    C.F.Booth, 1955, "Fleming and De Forest. An appreciation", in Thermionic Valves 1904– 1954, IEE.
    V.J.Phillips, 1980, Early Radio Detectors, London: Peter Peregrinus.
    KF / JW

    Biographical history of technology > De Forest, Lee

  • 45 application

    noun
    1) (request) Bewerbung, die ( for um); (for passport, licence, etc.) Antrag, der ( for auf + Akk.)

    application form — Antragsformular, das

    2) (diligence) Fleiß, der (to bei); (with enthusiasm) Eifer, der (to für)
    3) (putting) Auftragen, das (to auf + Akk.); (administering) Anwendung, die; (of heat, liquids) Zufuhr, die; (employment; of rule etc.) Anwendung, die
    4) (Computing) Applikation, die
    * * *
    [æpli-]
    1) (a formal request; an act of applying: several applications for the new job; The syllabus can be obtained on application to the headmaster.) die Bewerbung
    2) (hard work: He has got a good job through sheer application.) der Fleiß
    3) (an ointment etc applied to a cut, wound etc.) das Auftragen
    * * *
    ap·pli·ca·tion
    [ˌæplɪˈkeɪʃən]
    n
    1. (formal request) for a job Bewerbung f ( for um + akk); for a permit Antrag m ( for auf/für + akk); for a patent Anmeldung f ( for von + dat)
    \application for bankruptcy Konkursantrag m
    \application for membership Mitgliedschaftsantrag m
    \application for a permit Bewilligungsgesuch m
    to put together/send off/submit an \application eine Bewerbung anfertigen/abschicken/einreichen
    2. no pl (process of requesting) Anfordern nt
    on \application to sb/sth auf Anfrage bei jdm/etw
    free information will be sent out on \application Gratisinformationen können angefordert werden
    3. no pl (relevance) Bedeutung f (to für + akk)
    4. no pl (implementation) Anwenden nt
    the \application of a law/regulation die Anwendung eines Gesetzes/einer Regelung
    5. (coating) Anstrich m; of cream, ointment Auftragen nt
    6. (use) Anwendung f
    7. no pl (sustained effort) Eifer m
    8. (computer program) Anwendung f
    spreadsheet \application Tabellenkalkulationsprogramm nt
    word processing \application Textverarbeitungsprogramm nt
    9. BRIT STOCKEX Aktienzeichnung f
    \application for admission Zulassungsantrag m
    \application for quotation Börsenzulassungsantrag m
    \application for shares Aktienzeichnung f
    shares payable on \application bei Zeichnung zahlbare Aktien
    * * *
    ["plI'keISən]
    n
    1) (for job etc) Bewerbung f (for um, für); (for grant, loan etc) Antrag m (for auf +acc), Gesuch nt (for für); (for patent) Anmeldung f (
    for +gen)
    2) (= act of applying of paint, ointment, lotion) Auftragen nt; (of dressing, plaster) Anlegen nt; (of force, pressure, theory, rules) Anwenden nt, Anwendung f; (of skills, knowledge) Anwendung f, Verwendung f; (of funds) Verwendung f (to für), Gebrauch m (to für); (COMPUT: = program) Anwendung f, Applikation f; (of embargo, sanctions) Verhängen nt, Verhängung f

    "for external application only" (Med) — " nur zur äußerlichen Anwendung"

    3) (= diligence, effort) Fleiß m, Eifer m
    4) (form ESP MED) Mittel nt; (= ointment) Salbe f
    5)
    See:
    = academic.ru/3248/applicability">applicability
    * * *
    application [ˌæplıˈkeıʃn] s
    1. (to) Anwendung f (auf akk), Verwendung f, Gebrauch m (für):
    many applications viele Verwendungszwecke;
    application(s) program COMPUT Anwender-, Benutzerprogramm n;
    application(s) software COMPUT Anwendersoftware f
    2. (Nutz)Anwendung f:
    3. Anwendung f, An-, Verwendbarkeit f:
    area ( oder scope) of application Anwendungs-, Geltungsbereich m (eines Gesetzes etc);
    applications satellite Nutzsatellit m
    4. (to) Anwendung f (auf akk), Beziehung f (zu), Bedeutung f (für):
    have no application (to) keine Anwendung finden (bei), nicht zutreffen (auf akk), in keinem Zusammenhang stehen (mit)
    5. MED
    a) Applikation f, Anwendung f, Anlegung f:
    b) Mittel n, Verband m, Umschlag m
    6. (for) Bitte f, Gesuch n, Ersuchen n (um), Antrag m (auf akk):
    application for extradition (Völkerrecht) Auslieferungsbegehren n, -antrag m;
    on the application of auf Antrag (gen);
    on application auf Ersuchen oder Verlangen oder Wunsch;
    available on application auf Anfrage erhältlich;
    payable on application zahlbar bei Bestellung;
    make ( oder file) an application for etwas beantragen, (einen) Antrag stellen auf (akk);
    application form Antrags-, Bewerbungs-, Anmeldungsformular n
    7. Bewerbung f ( for um):
    make an application for a job sich um eine Stelle bewerben; → invite A 6
    8. (Patent)Anmeldung f:
    file an application for a patent eine Patentanmeldung einreichen, ein Patent anmelden
    9. WIRTSCH Br Zeichnung f ( for shares von Aktien)
    10. Fleiß m, Hingabe f, Eifer m ( alle:
    to bei)
    11. ASTRON Annäherung f (eines Planeten an einen Aspekt)
    * * *
    noun
    1) (request) Bewerbung, die ( for um); (for passport, licence, etc.) Antrag, der ( for auf + Akk.)

    application form — Antragsformular, das

    2) (diligence) Fleiß, der (to bei); (with enthusiasm) Eifer, der (to für)
    3) (putting) Auftragen, das (to auf + Akk.); (administering) Anwendung, die; (of heat, liquids) Zufuhr, die; (employment; of rule etc.) Anwendung, die
    4) (Computing) Applikation, die
    * * *
    (of paint) n.
    Auftrag -¨e (von Farbe) m. n.
    Anmeldung f.
    Antrag -¨e m.
    Anwendung f.
    Bewerbung f.
    Gesuch -e n.
    Nutzung -en f.
    Verwendung f.
    Zusatz -¨e m.

    English-german dictionary > application

  • 46 Houldsworth, Henry

    SUBJECT AREA: Textiles
    [br]
    b. 1797 Manchester (?), England
    d. 1868 Manchester (?), England
    [br]
    English cotton spinner who introduced the differential gear to roving frames in Britain.
    [br]
    There are two claimants for the person who originated the differential gear as applied to roving frames: one is J.Green, a tinsmith of Mansfield, in his patent of 1823; the other is Arnold, who had applied it in America and patented it in early 1823. This latter was the source for Houldsworth's patent in 1826. It seems that Arnold's gearing was secretly communicated to Houldsworth by Charles Richmond, possibly when Houldsworth visited the United States in 1822–3, but more probably in 1825 when Richmond went to England. In return, Richmond received information about parts of a cylinder printing machine from Houldsworth. In the working of the roving frame, as the rovings were wound onto their bobbins and the diameter of the bobbins increased, the bobbin speed had to be reduced to keep the winding on at the same speed while the flyers and drawing rollers had to maintain their initial speed. Although this could be achieved by moving the driving belt along coned pulleys, this method did not provide enough power and slippage occurred. The differential gear combined the direct drive from the main shaft of the roving frame with that from the cone drive, so that only the latter provided the dif-ference between flyer and bobbin speeds, i.e. the winding speeds, thus taking away most of the power from that belt. Henry Houldsworth Senior (1774–1853) was living in Manchester when his son Henry was born, but by 1800 had moved to Glasgow. He built several mills, including a massive one at Anderston, Scotland, in which a Boulton \& Watt steam engine was installed. Henry Houldsworth Junior was probably back in Manchester by 1826, where he was to become an influential cotton spinner as chief partner in his mills, which he moved out to Reddish in 1863–5. He was also a prominent landowner in Cheetham. When William Fairbairn was considering establishing the Association for the Prevention of Steam Boiler Explosions in 1854, he wanted to find an influential manufacturer and mill-owner and he made a happy choice when he turned to Henry Houldsworth for assistance.
    [br]
    Bibliography
    1826, British patent no. 5,316 (differential gear for roving frames).
    Further Reading
    Details about Henry Houldsworth Junior are very sparse. The best account of his acquisition of the differential gear is given by D.J.Jeremy, 1981, Transatlantic Industrial Revolution. The Diffusion of Textile Technologies Between Britain and America, 1790–1830, Oxford.
    W.English, 1969, The Textile Industry, London (an explanation of the mechanisms of the roving frame).
    W.Pole, 1877, The Life of Sir William Fairbairn, Bart., London (provides an account of the beginning of the Manchester Steam Users' Association for the Prevention of Steam-boiler Explosions).
    RLH

    Biographical history of technology > Houldsworth, Henry

  • 47 Heilmann, Josué (Joshua)

    SUBJECT AREA: Textiles
    [br]
    b. 1796 Alsace
    d. 1848
    [br]
    Alsatian inventor of the first machine for combing cotton.
    [br]
    Josué Heilmann, of Mulhouse, was awarded 5,000 francs offered by the cotton spinners of Alsace for a machine that would comb cotton. It was a process not hitherto applied to this fibre and, when perfected, enabled finer, smoother and more lustrous yarns to be spun. The important feature of Heilmann's method was to use a grip or nip to hold the end of the sliver that was being combed. Two or more combs passed through the protruding fibres to comb them thoroughly, and a brush cylinder and knife cleared away the noils. The combed section was passed forward so that the part held in the nip could then be combed. The combed fibres were joined up with the length already finished. Heilmann obtained a British patent in 1846, but no machines were put to work until 1851. Six firms of cotton spinners in Lancashire paid £30,000 for the cotton-combing rights and Marshall's of Leeds paid £20,000 for the rights to comb flax. Heilmann's machine was used on the European continent for combing silk as well as flax, wool and cotton, so it proved to be very versatile. Priority of his patent was challenged in England because Lister had patented a combing machine with a gripper or nip in 1843; in 1852 the parties went to litigation and cross-suits were instituted. While Heilmann obtained a verdict of infringement against Lister for certain things, Lister also obtained one against Heilmann for other matters. After this outcome, Heilmann's patent was bought on speculation by Messrs Akroyd and Titus Salt for £30,000, but was afterwards resold to Lister for the same amount. In this way Lister was able to exploit his own patent through suppressing Heilmann's.
    [br]
    Bibliography
    1846, British patent no. 11,103 (cotton-combing machine).
    Further Reading
    For descriptions of his combing machine see: W.English, 1969, The Textile Industry, London; T.K.Derry and T.I.Williams, 1960, A Short History of Technology from the Earliest Times to AD 1900, Oxford; and C.Singer (ed.), 1958, A History of Technology, Vol.
    IV, Oxford: Clarendon Press.
    RLH

    Biographical history of technology > Heilmann, Josué (Joshua)

  • 48 apply

    əˈplaɪ гл.
    1) обращаться с просьбой, заявлением ( особ. в письменной форме) (for - за чем-л.;
    to - к кому-л.) We applied to the authorities for assistance. ≈ Мы обратились к властям за помощью. The captain applied to headquarters for a transfer. ≈ Капитан подал в штаб рапорт о переводе на другое место службы. to apply at the following address( at the office, etc.) ≈ обращаться no следующему адресу (в контору и т. п.) apply in person apply by letter Syn: request
    2) применять, использовать, употреблять (to) to apply а system( а rule, the law, force, etc.) ≈ применить/использовать систему (правило, закон, силу и т. п.) to apply the new method ≈ внедрить новый метод to apply brakes ≈ тормозить to apply а sum of money to one's own use ≈ израсходовать деньги на собственные нужды
    3) накладывать, наносить;
    прикладывать( to - к чему-л.) to apply varnish ≈ наносить лак to apply а mustard-plaster ≈ ставить горчичники to apply one's ear to the keyhole ≈ приложить ухо к замочной скважине
    4) возвр. заниматься( чем-л.), направлять (внимание, энергию и т. п. на что-л.) (to) to apply oneself to mathematics (languages, one's work, etc.) ≈ заняться математикой (языками, работой и т. п.) She applied herself to her new duties with great energy. ≈ Она приступила к своим новым обязанностям с большим рвением.
    5) касаться, относиться;
    применяться (to) What I am saying does not apply to you. ≈ То, что я говорю, к вам не относится. This rule applies to all. ≈ Это правило относится ко всем. The rule does not apply to this case. ≈ Это правило не применимо к данному случаю. Syn: refer
    6), relate
    5) ∙ to apply the undertakings ≈ выполнять обязательства
    обращаться с просьбой, просить - to * for a rise просить прибавки - to * to smb. for smth. обращаться к кому-либо за чем-либо - to * to smb. for instructions обращаться за инструкциями подавать заявление( о приеме на работу, в учебное заведение) - to * for a job подавать заявление о приеме на работу - to * as a teacher подавлять заявление на должность преподавателя использовать, применять, употреблять - to * an epithet to smb. употребить эпитет - I would hardly * the term scholarship to such learning as his я бы не назвал его познания ученостью обозвать - to * a nickname дать прозвище - to * a hold (спортивное) применить захват - to * economic sanctions применить экономические санкции - to * an embargo наложить эмбарго - to * the brakes (автомобильное) нажать на тормоза - to * pressure to get what one wants оказать давление, чтобы добиться желаемого прикладывать, прилагать;
    накладывать - to * a match to a candle зажигать свечу( спичкой) - to * one's eye to a telescope приложить глаз к телескопу - to * glass-cups ставить банки - to * a bandage to a sore наложить повязку на болячку - to * glue to a surface покрыть поверхность клеем (математика) накладывать применяться, быть применимым;
    касаться, относиться - this rule does not always * это правило не всегда применимо - that argument does not * in this case этот аргумент в данном случае не применим - what I said does not * to you мои слова к вам не относятся;
    говоря это, я не имел в виду вас сосредоточить( силы) ;
    приложить, направить( энергию) ;
    посвятить (себя) - to * oneself to one's job усердно выполнять свою работу - he applied himself to learning French он прилежно взялся за изучение французского языка - to * one's mind to a task внимательно заниматься выполнением задачи - we must * our energies to finding a solution мы должны сделать все, чтобы решить эту задачу
    apply refl. заниматься (чем-л.), направлять свое внимание (на что-л.) ~ заявлять ~ использовать ~ касаться, относиться;
    быть приемлемым;
    this rule applies to all это правило относится ко всем;
    to apply the undertakings выполнять обязательства ~ обращаться (for - за работой, помощью, справкой, разрешением;
    to - к кому-л.) ~ обращаться с просьбой ~ относить ~ подавать заявление ~ прикладывать ~ прилагать ~ применять;
    употреблять;
    to apply brakes тормозить ~ вчт. применять ~ применять(ся) ~ применять ~ просить;
    обращаться ~ просить ~ употреблять ~ ходатайствовать
    ~ применять;
    употреблять;
    to apply brakes тормозить
    ~ for обращаться с просьбой ~ for подавать заявление ~ for просить
    ~ for a job подавать заявление о приеме на работу
    ~ for a post подавать заявление о занятии должности
    ~ for legal assistance обращаться за юридической помощью
    ~ for registration in commercial register подавать заявление о включении в торговый регистр
    ~ for registration of trade mark подавать заявление о регистрации торговой марки
    ~ for shares подавать заявку на приобретение акций
    ~ касаться, относиться;
    быть приемлемым;
    this rule applies to all это правило относится ко всем;
    to apply the undertakings выполнять обязательства
    ~ to использовать ~ to применять
    ~ касаться, относиться;
    быть приемлемым;
    this rule applies to all это правило относится ко всем;
    to apply the undertakings выполнять обязательства

    Большой англо-русский и русско-английский словарь > apply

  • 49 Armstrong, Edwin Howard

    [br]
    b. 18 December 1890 New York City, New York, USA
    d. 31 January 1954 New York City, New York, USA
    [br]
    American engineer who invented the regenerative and superheterodyne amplifiers and frequency modulation, all major contributions to radio communication and broadcasting.
    [br]
    Interested from childhood in anything mechanical, as a teenager Armstrong constructed a variety of wireless equipment in the attic of his parents' home, including spark-gap transmitters and receivers with iron-filing "coherer" detectors capable of producing weak Morse-code signals. In 1912, while still a student of engineering at Columbia University, he applied positive, i.e. regenerative, feedback to a Lee De Forest triode amplifier to just below the point of oscillation and obtained a gain of some 1,000 times, giving a receiver sensitivity very much greater than hitherto possible. Furthermore, by allowing the circuit to go into full oscillation he found he could generate stable continuous-waves, making possible the first reliable CW radio transmitter. Sadly, his claim to priority with this invention, for which he filed US patents in 1913, the year he graduated from Columbia, led to many years of litigation with De Forest, to whom the US Supreme Court finally, but unjustly, awarded the patent in 1934. The engineering world clearly did not agree with this decision, for the Institution of Radio Engineers did not revoke its previous award of a gold medal and he subsequently received the highest US scientific award, the Franklin Medal, for this discovery.
    During the First World War, after some time as an instructor at Columbia University, he joined the US Signal Corps laboratories in Paris, where in 1918 he invented the superheterodyne, a major contribution to radio-receiver design and for which he filed a patent in 1920. The principle of this circuit, which underlies virtually all modern radio, TV and radar reception, is that by using a local oscillator to convert, or "heterodyne", a wanted signal to a lower, fixed, "intermediate" frequency it is possible to obtain high amplification and selectivity without the need to "track" the tuning of numerous variable circuits.
    Returning to Columbia after the war and eventually becoming Professor of Electrical Engineering, he made a fortune from the sale of his patent rights and used part of his wealth to fund his own research into further problems in radio communication, particularly that of receiver noise. In 1933 he filed four patents covering the use of wide-band frequency modulation (FM) to achieve low-noise, high-fidelity sound broadcasting, but unable to interest RCA he eventually built a complete broadcast transmitter at his own expense in 1939 to prove the advantages of his system. Unfortunately, there followed another long battle to protect and exploit his patents, and exhausted and virtually ruined he took his own life in 1954, just as the use of FM became an established technique.
    [br]
    Principal Honours and Distinctions
    Institution of Radio Engineers Medal of Honour 1917. Franklin Medal 1937. IERE Edison Medal 1942. American Medal for Merit 1947.
    Bibliography
    1922, "Some recent developments in regenerative circuits", Proceedings of the Institute of Radio Engineers 10:244.
    1924, "The superheterodyne. Its origin, developments and some recent improvements", Proceedings of the Institute of Radio Engineers 12:549.
    1936, "A method of reducing disturbances in radio signalling by a system of frequency modulation", Proceedings of the Institute of Radio Engineers 24:689.
    Further Reading
    L.Lessing, 1956, Man of High-Fidelity: Edwin Howard Armstrong, pbk 1969 (the only definitive biography).
    W.R.Maclaurin and R.J.Harman, 1949, Invention \& Innovation in the Radio Industry.
    J.R.Whitehead, 1950, Super-regenerative Receivers.
    A.N.Goldsmith, 1948, Frequency Modulation (for the background to the development of frequency modulation, in the form of a large collection of papers and an extensive bibliog raphy).
    KF

    Biographical history of technology > Armstrong, Edwin Howard

  • 50 Dawson, William

    SUBJECT AREA: Textiles
    [br]
    b. mid-eighteenth century
    d. c.1805 London, England
    [br]
    English inventor of the notched wheel for making patterns on early warp knitting machines.
    [br]
    William Dawson, a Leicester framework knitter, made an important addition to William Lee's knitting machine with his invention of the notched wheel in 1791. Lee's machine could make only plain knitting; to be able to knit patterns, there had to be some means of mechanically selecting and operating, independently of all the others, any individual thread, needle, lever or bar at work in the machine. This was partly achieved when Dawson devised a wheel that was irregularly notched on its edge and which, when rotated, pushed sprung bars, which in turn operated on the needles or other parts of the recently invented warp knitting machines. He seems to have first applied the idea for the knitting of military sashes, but then found it could be adapted to plait stay laces with great rapidity. With the financial assistance of two Leicester manufacturers and with his own good mechanical ability, Dawson found a way of cutting his wheels. However, the two financiers withdrew their support because he did not finish the design on time, although he was able to find a friend in a Nottingham architect, Mr Gregory, who helped him to obtain the patent. A number of his machines were set up in Nottingham but, like many other geniuses, he squandered his money away. When the patent expired, he asked Lord Chancellor Eldon to have it renewed: he moved his workshop to London, where Eldon inspected his machine, but the patent was not extended and in consequence Dawson committed suicide.
    [br]
    Bibliography
    1791, British patent no. 1,820 (notched wheel for knitting machine).
    Further Reading
    W.Felkin, 1867, History of Machine-Wrought Hosiery and Lace Manufacture (covers Dawson's invention).
    W.English, 1969, The Textile Industry, London (provides an outline history of the development of knitting machines).
    RLH

    Biographical history of technology > Dawson, William

  • 51 Wasborough, Matthew

    [br]
    b. 1753 Bristol, England
    d. 21 October 1781 Bristol, England
    [br]
    English patentee of an application of the flywheel to create a rotative steam engine.
    [br]
    A single-cylinder atmospheric steam engine had a power stroke only when the piston descended the cylinder: a means had to be found of returning the piston to its starting position. For rotative engines, this was partially solved by the patent of Matthew Wasborough in 1779. His father was a partner in a Bristol brass-founding and clockmaking business in Narrow Wine Street where he was joined by his son. Wasborough proposed to use some form of ratchet gear to effect the rotary motion and added a flywheel, the first time one was used in a steam engine, "in order to render the motion more regular and uniform". He installed one engine to drive the lathes in the Bristol works and another at James Pickard's flour mill at Snow Hill, Birmingham, where Pickard applied his recently patented crank to it. It was this Wasborough-Pickard engine which posed a threat to Boulton \& Watt trying to develop a rotative engine, for Wasborough built several engines for cornmills in Bristol, woollen mills in Gloucestershire and a block factory at Southampton before his early death. Matthew Boulton was told that Wasborough was "so intent upon the study of engines as to bring a fever on his brain and he dyed in consequence thereof…. How dangerous it is for a man to wade out of his depth" (Jenkins 1936:106).
    [br]
    Bibliography
    1779, British patent no. 1,213 (rotative engine with flywheel).
    Further Reading
    J.Tann, 1978–9, "Makers of improved Newcomen engines in the late 18th century, and R.A.Buchanan", 1978–9, "Steam and the engineering community in the eighteenth century", Transactions of the Newcomen Society 50 ("Thomas Newcomen. A commemorative symposium") (both papers discuss Wasborough's engines).
    R.L.Hills, 1989, Power from Steam. A History of the Stationary Steam Engine, Cambridge University Press (examines his patent).
    R.Jenkins (ed.), 1936, Collected Papers, 106 (for Matthew Boulton's letter of 30 October 1781).
    RLH

    Biographical history of technology > Wasborough, Matthew

  • 52 application

    [ˌæplɪ'keɪʃn] 1.
    1) (request) (for job) domanda f. ( for di); (for membership, admission, passport, loan) richiesta f. ( for di); (for shares) sottoscrizione f. ( for di)

    to make an application for a job o a job application presentare una domanda d'impiego; to make an application for a university place fare domanda d'iscrizione all'università; a letter of application domanda di impiego; to fill out a job application compilare un modulo di assunzione; on application — su richiesta

    2) (spreading) applicazione f. (to su)
    3) (implementation) (of law, penalty, rule, theory) applicazione f.
    4) (use) applicazione f., uso m.
    5) inform. applicazione f.
    6) dir. (for divorce, patent) richiesta f. ( for di)
    2.
    modificatore (anche applications) inform. [package, software] applicativo
    * * *
    [æpli-]
    1) (a formal request; an act of applying: several applications for the new job; The syllabus can be obtained on application to the headmaster.) domanda
    2) (hard work: He has got a good job through sheer application.) applicazione, impegno
    3) (an ointment etc applied to a cut, wound etc.) applicazione
    * * *
    [ˌæplɪ'keɪʃn] 1.
    1) (request) (for job) domanda f. ( for di); (for membership, admission, passport, loan) richiesta f. ( for di); (for shares) sottoscrizione f. ( for di)

    to make an application for a job o a job application presentare una domanda d'impiego; to make an application for a university place fare domanda d'iscrizione all'università; a letter of application domanda di impiego; to fill out a job application compilare un modulo di assunzione; on application — su richiesta

    2) (spreading) applicazione f. (to su)
    3) (implementation) (of law, penalty, rule, theory) applicazione f.
    4) (use) applicazione f., uso m.
    5) inform. applicazione f.
    6) dir. (for divorce, patent) richiesta f. ( for di)
    2.
    modificatore (anche applications) inform. [package, software] applicativo

    English-Italian dictionary > application

  • 53 Barber, John

    [br]
    baptized 22 October 1734 Greasley, Nottinghamshire, England
    d. 6 November 1801 Attleborough, Nuneaton, England
    [br]
    English inventor of the gas turbine and jet propulsion.
    [br]
    He was the son of Francis Barber, coalmaster of Greasley, and Elizabeth Fletcher. In his will of 1765. his uncle, John Fletcher, left the bulk of his property, including collieries and Stainsby House, Horsley Woodhouse, Derbyshire, to John Barber. Another uncle, Robert, bequeathed him property in the next village, Smalley. It is clear that at this time John Barber was a man of considerable means. On a tablet erected by John in 1767, he acknowledges his debt to his uncle John in the words "in remembrance of the man who trained him up from a youth". At this time John Barber was living at Stainsby House and had already been granted his first patent, in 1766. The contents of this patent, which included a reversible water turbine, and his subsequent patents, suggest that he was very familiar with mining equipment, including the Newcomen engine. It comes as rather a surprise that c.1784 he became bankrupt and had to leave Stainsby House, evidently moving to Attleborough. In a strange twist, a descendent of Mr Sitwell, the new owner, bought the prototype Akroyd Stuart oil engine from the Doncaster Show in 1891.
    The second and fifth (final) patents, in 1773 and 1792, were concerned with smelting and the third, in 1776, featured a boiler-mounted impulse steam turbine. The fourth and most important patent, in 1791, describes and engine that could be applied to the "grinding of corn, flints, etc.", "rolling, slitting, forging or battering iron and other metals", "turning of mills for spinning", "turning up coals and other minerals from mines", and "stamping of ores, raising water". Further, and importantly, the directing of the fluid stream into smelting furnaces or at the stern of ships to propel them is mentioned. The engine described comprised two retorts for heating coal or oil to produce an inflammable gas, one to operate while the other was cleansed and recharged. The resultant gas, together with the right amount of air, passed to a beam-operated pump and a water-cooled combustion chamber, and then to a water-cooled nozzle to an impulse gas turbine, which drove the pumps and provided the output. A clear description of the thermodynamic sequence known as the Joule Cycle (Brayton in the USA) is thus given. Further, the method of gas production predates Murdoch's lighting of the Soho foundry by gas.
    It seems unlikely that John Barber was able to get his engine to work; indeed, it was well over a hundred years before a continuous combustion chamber was achieved. However, the details of the specification, for example the use of cooling water jackets and injection, suggest that considerable experimentation had taken place.
    To be active in the taking out of patents over a period of 26 years is remarkable; that the best came after bankruptcy is more so. There is nothing to suggest that the cost of his experiments was the cause of his financial troubles.
    [br]
    Further Reading
    A.K.Bruce, 1944, "John Barber and the gas turbine", Engineer 29 December: 506–8; 8 March (1946):216, 217.
    C.Lyle Cummins, 1976, Internal Fire, Carnot Press.
    JB

    Biographical history of technology > Barber, John

  • 54 Huygens, Christiaan

    SUBJECT AREA: Horology
    [br]
    b. 14 April 1629 The Hague, the Netherlands
    d. 8 June 1695 The Hague, the Netherlands
    [br]
    Dutch scientist who was responsible for two of the greatest advances in horology: the successful application of both the pendulum to the clock and the balance spring to the watch.
    [br]
    Huygens was born into a cultured and privileged class. His father, Constantijn, was a poet and statesman who had wide interests. Constantijn exerted a strong influence on his son, who was educated at home until he reached the age of 16. Christiaan studied law and mathematics at Ley den University from 1645 to 1647, and continued his studies at the Collegium Arausiacum in Breda until 1649. He then lived at The Hague, where he had the means to devote his time entirely to study. In 1666 he became a Member of the Académie des Sciences in Paris and settled there until his return to The Hague in 1681. He also had a close relationship with the Royal Society and visited London on three occasions, meeting Newton on his last visit in 1689. Huygens had a wide range of interests and made significant contributions in mathematics, astronomy, optics and mechanics. He also made technical advances in optical instruments and horology.
    Despite the efforts of Burgi there had been no significant improvement in the performance of ordinary clocks and watches from their inception to Huygens's time, as they were controlled by foliots or balances which had no natural period of oscillation. The pendulum appeared to offer a means of improvement as it had a natural period of oscillation that was almost independent of amplitude. Galileo Galilei had already pioneered the use of a freely suspended pendulum for timing events, but it was by no means obvious how it could be kept swinging and used to control a clock. Towards the end of his life Galileo described such a. mechanism to his son Vincenzio, who constructed a model after his father's death, although it was not completed when he himself died in 1642. This model appears to have been copied in Italy, but it had little influence on horology, partly because of the circumstances in which it was produced and possibly also because it differed radically from clocks of that period. The crucial event occurred on Christmas Day 1656 when Huygens, quite independently, succeeded in adapting an existing spring-driven table clock so that it was not only controlled by a pendulum but also kept it swinging. In the following year he was granted a privilege or patent for this clock, and several were made by the clockmaker Salomon Coster of The Hague. The use of the pendulum produced a dramatic improvement in timekeeping, reducing the daily error from minutes to seconds, but Huygens was aware that the pendulum was not truly isochronous. This error was magnified by the use of the existing verge escapement, which made the pendulum swing through a large arc. He overcame this defect very elegantly by fitting cheeks at the pendulum suspension point, progressively reducing the effective length of the pendulum as the amplitude increased. Initially the cheeks were shaped empirically, but he was later able to show that they should have a cycloidal shape. The cheeks were not adopted universally because they introduced other defects, and the problem was eventually solved more prosaically by way of new escapements which reduced the swing of the pendulum. Huygens's clocks had another innovatory feature: maintaining power, which kept the clock going while it was being wound.
    Pendulums could not be used for portable timepieces, which continued to use balances despite their deficiencies. Robert Hooke was probably the first to apply a spring to the balance, but his efforts were not successful. From his work on the pendulum Huygens was well aware of the conditions necessary for isochronism in a vibrating system, and in January 1675, with a flash of inspiration, he realized that this could be achieved by controlling the oscillations of the balance with a spiral spring, an arrangement that is still used in mechanical watches. The first model was made for Huygens in Paris by the clockmaker Isaac Thuret, who attempted to appropriate the invention and patent it himself. Huygens had for many years been trying unsuccessfully to adapt the pendulum clock for use at sea (in order to determine longitude), and he hoped that a balance-spring timekeeper might be better suited for this purpose. However, he was disillusioned as its timekeeping proved to be much more susceptible to changes in temperature than that of the pendulum clock.
    [br]
    Principal Honours and Distinctions
    FRS 1663. Member of the Académie Royale des Sciences 1666.
    Bibliography
    For his complete works, see Oeuvres complètes de Christian Huygens, 1888–1950, 22 vols, The Hague.
    1658, Horologium, The Hague; repub., 1970, trans. E.L.Edwardes, Antiquarian
    Horology 7:35–55 (describes the pendulum clock).
    1673, Horologium Oscillatorium, Paris; repub., 1986, The Pendulum Clock or Demonstrations Concerning the Motion ofPendula as Applied to Clocks, trans.
    R.J.Blackwell, Ames.
    Further Reading
    H.J.M.Bos, 1972, Dictionary of Scientific Biography, ed. C.C.Gillispie, Vol. 6, New York, pp. 597–613 (for a fuller account of his life and scientific work, but note the incorrect date of his death).
    R.Plomp, 1979, Spring-Driven Dutch Pendulum Clocks, 1657–1710, Schiedam (describes Huygens's application of the pendulum to the clock).
    S.A.Bedini, 1991, The Pulse of Time, Florence (describes Galileo's contribution of the pendulum to the clock).
    J.H.Leopold, 1982, "L"Invention par Christiaan Huygens du ressort spiral réglant pour les montres', Huygens et la France, Paris, pp. 154–7 (describes the application of the balance spring to the watch).
    A.R.Hall, 1978, "Horology and criticism", Studia Copernica 16:261–81 (discusses Hooke's contribution).
    DV

    Biographical history of technology > Huygens, Christiaan

  • 55 Siemens, Sir Charles William

    [br]
    b. 4 April 1823 Lenthe, Germany
    d. 19 November 1883 London, England
    [br]
    German/British metallurgist and inventory pioneer of the regenerative principle and open-hearth steelmaking.
    [br]
    Born Carl Wilhelm, he attended craft schools in Lübeck and Magdeburg, followed by an intensive course in natural science at Göttingen as a pupil of Weber. At the age of 19 Siemens travelled to England and sold an electroplating process developed by his brother Werner Siemens to Richard Elkington, who was already established in the plating business. From 1843 to 1844 he obtained practical experience in the Magdeburg works of Count Stolburg. He settled in England in 1844 and later assumed British nationality, but maintained close contact with his brother Werner, who in 1847 had co-founded the firm Siemens \& Halske in Berlin to manufacture telegraphic equipment. William began to develop his regenerative principle of waste-heat recovery and in 1856 his brother Frederick (1826–1904) took out a British patent for heat regeneration, by which hot waste gases were passed through a honeycomb of fire-bricks. When they became hot, the gases were switched to a second mass of fire-bricks and incoming air and fuel gas were led through the hot bricks. By alternating the two gas flows, high temperatures could be reached and considerable fuel economies achieved. By 1861 the two brothers had incorporated producer gas fuel, made by gasifying low-grade coal.
    Heat regeneration was first applied in ironmaking by Cowper in 1857 for heating the air blast in blast furnaces. The first regenerative furnace was set up in Birmingham in 1860 for glassmaking. The first such furnace for making steel was developed in France by Pierre Martin and his father, Emile, in 1863. Siemens found British steelmakers reluctant to adopt the principle so in 1866 he rented a small works in Birmingham to develop his open-hearth steelmaking furnace, which he patented the following year. The process gradually made headway; as well as achieving high temperatures and saving fuel, it was slower than Bessemer's process, permitting greater control over the content of the steel. By 1900 the tonnage of open-hearth steel exceeded that produced by the Bessemer process.
    In 1872 Siemens played a major part in founding the Society of Telegraph Engineers (from which the Institution of Electrical Engineers evolved), serving as its first President. He became President for the second time in 1878. He built a cable works at Charlton, London, where the cable could be loaded directly into the holds of ships moored on the Thames. In 1873, together with William Froude, a British shipbuilder, he designed the Faraday, the first specialized vessel for Atlantic cable laying. The successful laying of a cable from Europe to the United States was completed in 1875, and a further five transatlantic cables were laid by the Faraday over the following decade.
    The Siemens factory in Charlton also supplied equipment for some of the earliest electric-lighting installations in London, including the British Museum in 1879 and the Savoy Theatre in 1882, the first theatre in Britain to be fully illuminated by electricity. The pioneer electric-tramway system of 1883 at Portrush, Northern Ireland, was an opportunity for the Siemens company to demonstrate its equipment.
    [br]
    Principal Honours and Distinctions
    Knighted 1883. FRS 1862. Institution of Civil Engineers Telford Medal 1853. President, Institution of Mechanical Engineers 1872. President, Society of Telegraph Engineers 1872 and 1878. President, British Association 1882.
    Bibliography
    27 May 1879, British patent no. 2,110 (electricarc furnace).
    1889, The Scientific Works of C.William Siemens, ed. E.F.Bamber, 3 vols, London.
    Further Reading
    W.Poles, 1888, Life of Sir William Siemens, London; repub. 1986 (compiled from material supplied by the family).
    S.von Weiher, 1972–3, "The Siemens brothers. Pioneers of the electrical age in Europe", Transactions of the Newcomen Society 45:1–11 (a short, authoritative biography). S.von Weihr and H.Goetler, 1983, The Siemens Company. Its Historical Role in the
    Progress of Electrical Engineering 1847–1980, English edn, Berlin (a scholarly account with emphasis on technology).
    GW

    Biographical history of technology > Siemens, Sir Charles William

  • 56 apply

    [ə'plaɪ] 1.
    1) (spread) applicare [ make-up] (to su); dare [ paint] (to a)
    2) (affix) applicare [sticker, bandage, sequins] (to a, su)
    3) (use) applicare [theory, rule, method]; esercitare [friction, pressure] (to su)
    2.
    1) (request) fare, inoltrare domanda

    to apply for — richiedere [divorce, citizenship, passport, loan, patent, visa]; far domanda di [ job]

    "apply in writing to" — "inviate le vostre domande a"

    2) (seek entry) (to college) fare domanda di iscrizione; (to club, society) fare domanda di ammissione

    to apply to join — richiedere di entrare in [army, group]

    3) (be valid) [definition, term] applicarsi (to a), essere valido (to per); [ban, rule, penalty] essere in vigore
    3.

    to apply oneself — applicarsi, dedicarsi (to a; to doing a fare)

    * * *
    1) ((with to) to put (something) on or against something else: to apply ointment to a cut.) applicare
    2) ((with to) to use (something) for some purpose: He applied his wits to planning their escape.) usare
    3) ((with for) to ask for (something) formally: You could apply (to the manager) for a job.) applicare
    4) ((with to) to concern: This rule does not apply to him.) fare domanda
    5) (to be in force: The rule doesn't apply at weekends.) applicarsi
    •
    - applicable
    - applicability
    - applicant
    - application
    - apply oneself/one's mind
    * * *
    [ə'plaɪ] 1.
    1) (spread) applicare [ make-up] (to su); dare [ paint] (to a)
    2) (affix) applicare [sticker, bandage, sequins] (to a, su)
    3) (use) applicare [theory, rule, method]; esercitare [friction, pressure] (to su)
    2.
    1) (request) fare, inoltrare domanda

    to apply for — richiedere [divorce, citizenship, passport, loan, patent, visa]; far domanda di [ job]

    "apply in writing to" — "inviate le vostre domande a"

    2) (seek entry) (to college) fare domanda di iscrizione; (to club, society) fare domanda di ammissione

    to apply to join — richiedere di entrare in [army, group]

    3) (be valid) [definition, term] applicarsi (to a), essere valido (to per); [ban, rule, penalty] essere in vigore
    3.

    to apply oneself — applicarsi, dedicarsi (to a; to doing a fare)

    English-Italian dictionary > apply

  • 57 apply

    ap·ply <- ie-> [əʼplaɪ] vi
    to \apply for sth ( for a job) sich akk um etw akk bewerben;
    ( for permission) etw akk beantragen (to bei +dat);
    Tim's applied to join the police Tim hat sich bei der Polizei beworben;
    to \apply for a grant/ job sich akk um [o für] ein Stipendium/eine Stelle bewerben;
    to \apply for a passport einen Pass beantragen;
    to \apply for a patent ein Patent anmelden
    to \apply for a job eine Bewerbung einreichen;
    to \apply in writing sich akk schriftlich bewerben;
    please \apply in writing to the address below bitte richten Sie Ihre schriftliche Bewerbung an unten stehende Adresse
    3) ( pertain) gelten;
    to \apply to sb/ sth jdn/etw betreffen vt
    1) ( put on)
    to \apply sth [to sth] etw [auf etw akk] anwenden;
    to \apply a bandage einen Verband anlegen;
    to \apply cream/ paint Creme/Farbe auftragen;
    to \apply make-up Make-up auflegen;
    to \apply a splint to sth etw schienen
    2) ( use)
    to \apply sth etw gebrauchen;
    to \apply the brakes bremsen;
    to \apply force Gewalt anwenden;
    to \apply pressure to sth auf etw akk drücken;
    to \apply sanctions Sanktionen verhängen;
    to \apply common sense sich akk des gesunden Menschenverstands bedienen
    3) ( persevere)
    to \apply oneself sich akk anstrengen

    English-German students dictionary > apply

  • 58 Holmes, Frederic Hale

    [br]
    fl. 1850s–60s
    [br]
    British engineer who pioneered the electrical illumination of lighthouses in Great Britain.
    [br]
    An important application of the magneto generator was demonstrated by Holmes in 1853 when he showed that it might be used to supply an arc lamp. This had many implications for the future because it presented the possibility of making electric lighting economically successful. In 1856 he patented a machine with six disc armatures on a common axis rotating between seven banks of permanent magnets. The following year Holmes suggested the possible application of his invention to lighthouse illumination and a trial was arranged and observed by Faraday, who was at that time scientific adviser to Trinity House, the corporation entrusted with the care of light-houses in England and Wales. Although the trial was successful and gained the approval of Faraday, the Elder Brethren of Trinity House imposed strict conditions on Holmes's design for machines to be used for a more extensive trial. These included connecting the machine directly to a slow-speed steam engine, but this resulted in a reduced performance. The experiments of Holmes and Faraday were brought to the attention of the French lighthouse authorities and magneto generators manufactured by Société Alliance began to be installed in some lighthouses along the coast of France. After noticing the French commutatorless machines, Holmes produced an alternator of similar type in 1867. Two of these were constructed for a new lighthouse at Souter Point near Newcastle and two were installed in each of the two lighthouses at South Foreland. One of the machines from South Foreland that was in service from 1872 to 1922 is preserved in the Royal Museum of Scotland, Edinburgh. A Holmes generator is also preserved in the Science Museum, London. Holmes obtained a series of patents for generators between 1856 and 1869, with all but the last being of the magneto-electric type.
    [br]
    Bibliography
    7 March 1856, British patent no. 573 (the original patent for Holmes's invention).
    1863, "On magneto electricity and its application to lighthouse purposes", Journal of the Society of Arts 12:39–43.
    Further Reading
    W.J.King, 1962, in The Development of Electrical Technology in the 19th Century; Washington, DC: Smithsonian Institution, Paper 30, pp. 351–63 (provides a detailed account of Holmes's generators).
    J.N.Douglas, 1879, "The electric light applied to lighthouse illumination", Proceedings of the Institution of Civil Engineers 57(3):77–110 (describes trials of Holmes's machines).
    GW

    Biographical history of technology > Holmes, Frederic Hale

  • 59 Porter, Charles Talbot

    [br]
    b. 18 January 1826 Auburn, New York, USA
    d. 1910 USA
    [br]
    American inventor of a stone dressing machine, an improved centrifugal governor and a high-speed steam engine.
    [br]
    Porter graduated from Hamilton College, New York, in 1845, read law in his father's office, and in the autumn of 1847 was admitted to the Bar. He practised for six or seven years in Rochester, New York, and then in New York City. He was drawn into engineering when aged about 30, first through a client who claimed to have invented a revolutionary type of engine and offered Porter the rights to it as payment of a debt. Having lent more money, Porter saw neither the man nor the engine again. Porter followed this with a similar experience over a patent for a stone dressing machine, except this time the machine was built. It proved to be a failure, but Porter set about redesigning it and found that it was vastly improved when it ran faster. His improved machine went into production. It was while trying to get the steam engine that drove the stone dressing machine to run more smoothly that he made a discovery that formed the basis for his subsequent work.
    Porter took the ordinary Watt centrifugal governor and increased the speed by a factor of about ten; although he had to reduce the size of the weights, he gained a motion that was powerful. To make the device sufficiently responsive at the right speed, he balanced the centrifugal forces by a counterweight. This prevented the weights flying outwards until the optimum speed was reached, so that the steam valves remained fully open until that point and then the weights reacted more quickly to variations in speed. He took out a patent in 1858, and its importance was quickly recognized. At first he manufactured and sold the governors himself in a specially equipped factory, because this was the only way he felt he could get sufficient accuracy to ensure a perfect action. For marine use, the counterweight was replaced by a spring.
    Higher speed had brought the advantage of smoother running and so he thought that the same principles could be applied to the steam engine itself, but it was to take extensive design modifications over several years before his vision was realized. In the winter of 1860–1, J.F. Allen met Porter and sketched out his idea of a new type of steam inlet valve. Porter saw the potential of this for his high-speed engine and Allen took out patents for it in 1862. The valves were driven by a new valve gear designed by Pius Fink. Porter decided to display his engine at the International Exhibition in London in 1862, but it had to be assembled on site because the parts were finished in America only just in time to be shipped to meet the deadline. Running at 150 rpm, the engine caused a sensation, but as it was non-condensing there were few orders. Porter added condensing apparatus and, after the failure of Ormerod Grierson \& Co., entered into an agreement with Joseph Whitworth to build the engines. Four were exhibited at the 1867 Paris Exposition Universelle, but Whitworth and Porter fell out and in 1868 Porter returned to America.
    Porter established another factory to build his engine in America, but he ran into all sorts of difficulties, both mechanical and financial. Some engines were built, and serious production was started c. 1874, but again there were further problems and Porter had to leave his firm. High-speed engines based on his designs continued to be made until after 1907 by the Southwark Foundry and Machine Company, Philadelphia, so Porter's ideas were proved viable and led to many other high-speed designs.
    [br]
    Bibliography
    1908, Engineering Reminiscences, New York: J. Wiley \& Sons; reprinted 1985, Bradley, Ill.: Lindsay (autobiography; the main source of information about his life).
    Further Reading
    R.L.Hills, 1989, Power from Steam. A History of the Stationary Steam Engine, Cambridge University Press (examines his governor and steam engine).
    O.Mayr, 1974, "Yankee practice and engineering theory; Charles T.Porter and the dynamics of the high-speed engine", Technology and Culture 16 (4) (examines his governor and steam engine).
    RLH

    Biographical history of technology > Porter, Charles Talbot

  • 60 application

    1) (a formal request; an act of applying: several applications for the new job; The syllabus can be obtained on application to the headmaster.) søknad
    2) (hard work: He has got a good job through sheer application.) flid, hardt arbeid
    3) (an ointment etc applied to a cut, wound etc.) sårsalve; omslag
    subst. \/ˌæplɪˈkeɪʃ(ə)n\/
    1) søknad, formell henvendelse
    2) det å ta noe i bruk, det å benytte
    3) bruk(sområde), anvendelse(sområde), anvendelighet
    4) innmelding, påmelding
    5) ( medisin) salve
    6) hardt arbeid, flid
    7) ( handel) tegning (av aksjer)
    8) ( EDB) applikasjon
    application for remand in custody ( jus) fengslingsbegjæring
    application oriented ( EDB) brukerorientert
    file an application legge inn en søknad, søke
    make an application for something søke om (eller på) noe
    make (an) application to henvende seg til
    on application på forespørsel, etter anmodning, på forlangende

    English-Norwegian dictionary > application

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