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  • 61 Stephenson, George

    [br]
    b. 9 June 1781 Wylam, Northumberland, England
    d. 12 August 1848 Tapton House, Chesterfield, England
    [br]
    English engineer, "the father of railways".
    [br]
    George Stephenson was the son of the fireman of the pumping engine at Wylam colliery, and horses drew wagons of coal along the wooden rails of the Wylam wagonway past the house in which he was born and spent his earliest childhood. While still a child he worked as a cowherd, but soon moved to working at coal pits. At 17 years of age he showed sufficient mechanical talent to be placed in charge of a new pumping engine, and had already achieved a job more responsible than that of his father. Despite his position he was still illiterate, although he subsequently learned to read and write. He was largely self-educated.
    In 1801 he was appointed Brakesman of the winding engine at Black Callerton pit, with responsibility for lowering the miners safely to their work. Then, about two years later, he became Brakesman of a new winding engine erected by Robert Hawthorn at Willington Quay on the Tyne. Returning collier brigs discharged ballast into wagons and the engine drew the wagons up an inclined plane to the top of "Ballast Hill" for their contents to be tipped; this was one of the earliest applications of steam power to transport, other than experimentally.
    In 1804 Stephenson moved to West Moor pit, Killingworth, again as Brakesman. In 1811 he demonstrated his mechanical skill by successfully modifying a new and unsatisfactory atmospheric engine, a task that had defeated the efforts of others, to enable it to pump a drowned pit clear of water. The following year he was appointed Enginewright at Killingworth, in charge of the machinery in all the collieries of the "Grand Allies", the prominent coal-owning families of Wortley, Liddell and Bowes, with authorization also to work for others. He built many stationary engines and he closely examined locomotives of John Blenkinsop's type on the Kenton \& Coxlodge wagonway, as well as those of William Hedley at Wylam.
    It was in 1813 that Sir Thomas Liddell requested George Stephenson to build a steam locomotive for the Killingworth wagonway: Blucher made its first trial run on 25 July 1814 and was based on Blenkinsop's locomotives, although it lacked their rack-and-pinion drive. George Stephenson is credited with building the first locomotive both to run on edge rails and be driven by adhesion, an arrangement that has been the conventional one ever since. Yet Blucher was far from perfect and over the next few years, while other engineers ignored the steam locomotive, Stephenson built a succession of them, each an improvement on the last.
    During this period many lives were lost in coalmines from explosions of gas ignited by miners' lamps. By observation and experiment (sometimes at great personal risk) Stephenson invented a satisfactory safety lamp, working independently of the noted scientist Sir Humphry Davy who also invented such a lamp around the same time.
    In 1817 George Stephenson designed his first locomotive for an outside customer, the Kilmarnock \& Troon Railway, and in 1819 he laid out the Hetton Colliery Railway in County Durham, for which his brother Robert was Resident Engineer. This was the first railway to be worked entirely without animal traction: it used inclined planes with stationary engines, self-acting inclined planes powered by gravity, and locomotives.
    On 19 April 1821 Stephenson was introduced to Edward Pease, one of the main promoters of the Stockton \& Darlington Railway (S \& DR), which by coincidence received its Act of Parliament the same day. George Stephenson carried out a further survey, to improve the proposed line, and in this he was assisted by his 18-year-old son, Robert Stephenson, whom he had ensured received the theoretical education which he himself lacked. It is doubtful whether either could have succeeded without the other; together they were to make the steam railway practicable.
    At George Stephenson's instance, much of the S \& DR was laid with wrought-iron rails recently developed by John Birkinshaw at Bedlington Ironworks, Morpeth. These were longer than cast-iron rails and were not brittle: they made a track well suited for locomotives. In June 1823 George and Robert Stephenson, with other partners, founded a firm in Newcastle upon Tyne to build locomotives and rolling stock and to do general engineering work: after its Managing Partner, the firm was called Robert Stephenson \& Co.
    In 1824 the promoters of the Liverpool \& Manchester Railway (L \& MR) invited George Stephenson to resurvey their proposed line in order to reduce opposition to it. William James, a wealthy land agent who had become a visionary protagonist of a national railway network and had seen Stephenson's locomotives at Killingworth, had promoted the L \& MR with some merchants of Liverpool and had carried out the first survey; however, he overreached himself in business and, shortly after the invitation to Stephenson, became bankrupt. In his own survey, however, George Stephenson lacked the assistance of his son Robert, who had left for South America, and he delegated much of the detailed work to incompetent assistants. During a devastating Parliamentary examination in the spring of 1825, much of his survey was shown to be seriously inaccurate and the L \& MR's application for an Act of Parliament was refused. The railway's promoters discharged Stephenson and had their line surveyed yet again, by C.B. Vignoles.
    The Stockton \& Darlington Railway was, however, triumphantly opened in the presence of vast crowds in September 1825, with Stephenson himself driving the locomotive Locomotion, which had been built at Robert Stephenson \& Co.'s Newcastle works. Once the railway was at work, horse-drawn and gravity-powered traffic shared the line with locomotives: in 1828 Stephenson invented the horse dandy, a wagon at the back of a train in which a horse could travel over the gravity-operated stretches, instead of trotting behind.
    Meanwhile, in May 1826, the Liverpool \& Manchester Railway had successfully obtained its Act of Parliament. Stephenson was appointed Engineer in June, and since he and Vignoles proved incompatible the latter left early in 1827. The railway was built by Stephenson and his staff, using direct labour. A considerable controversy arose c. 1828 over the motive power to be used: the traffic anticipated was too great for horses, but the performance of the reciprocal system of cable haulage developed by Benjamin Thompson appeared in many respects superior to that of contemporary locomotives. The company instituted a prize competition for a better locomotive and the Rainhill Trials were held in October 1829.
    Robert Stephenson had been working on improved locomotive designs since his return from America in 1827, but it was the L \& MR's Treasurer, Henry Booth, who suggested the multi-tubular boiler to George Stephenson. This was incorporated into a locomotive built by Robert Stephenson for the trials: Rocket was entered by the three men in partnership. The other principal entrants were Novelty, entered by John Braithwaite and John Ericsson, and Sans Pareil, entered by Timothy Hackworth, but only Rocket, driven by George Stephenson, met all the organizers' demands; indeed, it far surpassed them and demonstrated the practicability of the long-distance steam railway. With the opening of the Liverpool \& Manchester Railway in 1830, the age of railways began.
    Stephenson was active in many aspects. He advised on the construction of the Belgian State Railway, of which the Brussels-Malines section, opened in 1835, was the first all-steam railway on the European continent. In England, proposals to link the L \& MR with the Midlands had culminated in an Act of Parliament for the Grand Junction Railway in 1833: this was to run from Warrington, which was already linked to the L \& MR, to Birmingham. George Stephenson had been in charge of the surveys, and for the railway's construction he and J.U. Rastrick were initially Principal Engineers, with Stephenson's former pupil Joseph Locke under them; by 1835 both Stephenson and Rastrick had withdrawn and Locke was Engineer-in-Chief. Stephenson remained much in demand elsewhere: he was particularly associated with the construction of the North Midland Railway (Derby to Leeds) and related lines. He was active in many other places and carried out, for instance, preliminary surveys for the Chester \& Holyhead and Newcastle \& Berwick Railways, which were important links in the lines of communication between London and, respectively, Dublin and Edinburgh.
    He eventually retired to Tapton House, Chesterfield, overlooking the North Midland. A man who was self-made (with great success) against colossal odds, he was ever reluctant, regrettably, to give others their due credit, although in retirement, immensely wealthy and full of honour, he was still able to mingle with people of all ranks.
    [br]
    Principal Honours and Distinctions
    President, Institution of Mechanical Engineers, on its formation in 1847. Order of Leopold (Belgium) 1835. Stephenson refused both a knighthood and Fellowship of the Royal Society.
    Bibliography
    1815, jointly with Ralph Dodd, British patent no. 3,887 (locomotive drive by connecting rods directly to the wheels).
    1817, jointly with William Losh, British patent no. 4,067 (steam springs for locomotives, and improvements to track).
    Further Reading
    L.T.C.Rolt, 1960, George and Robert Stephenson, Longman (the best modern biography; includes a bibliography).
    S.Smiles, 1874, The Lives of George and Robert Stephenson, rev. edn, London (although sycophantic, this is probably the best nineteenthcentury biography).
    PJGR

    Biographical history of technology > Stephenson, George

  • 62 sobre2

    = about, on, on top of, onto, over, surrounding, the way in which, upon, atop.
    Ex. His report contains sufficient information about a set of events and the people involved to allow for careful, systematic investigation.
    Ex. Efforts are being made in the direction of an international consensus on the definition and treatment of corporate authorship.
    Ex. Cards are superimposed, one on top of another, and carefully aligned.
    Ex. When one is in place, the depression of a lever causes it to be photographed onto the next blank space.
    Ex. The conventional name of a government is the geographic name of the area over which the government has jurisdiction.
    Ex. This section, then, will review the basic problems surrounding the choice of form of headings for persons.
    Ex. Recommendations relating to analytical cataloguing practices concern themselves primarily with the way in which the part of a document or work to be accessed is described.
    Ex. Taube's original system relied upon 'uniterms' or one concept terms.
    Ex. In Paris, the liberty cap atop the pike became an important icon aimed against the fading tyranny of the ancien regime.
    ----
    * sobre ascuas = in suspense.
    * sobre base de arena = sand-based.
    * sobre + Cantidad = around + Cantidad.
    * sobre disco = ondisc.
    * sobre el automóvil = automotive.
    * sobre ello = thereupon [thereon].
    * sobre el papel = in intent, nominally.
    * sobre el que se están haciendo averiguaciones = under investigation.
    * sobre el terreno = on the ground.
    * sobre esta base = on this basis, on that basis.
    * a partir de esto = on that basis.
    * sobre forro de tela = cloth-backed.
    * sobre la base de = in relation to, on the usual basis.
    * sobre la comedia = comedic.
    * sobre la marcha = on-the-fly, off the top of + Posesivo + head, right off the bat, spur-of-the-moment, on the spur of the moment, while-you-wait [while-u-wait], straight away, as you go, right away, at once.
    * sobre la superficie = above ground.
    * sobre la tierra = on earth, on the face of the earth, on the ground.
    * sobre los glaciares = glaciological.
    * sobre museos = museum-based.
    * sobre ruedas = on wheels, roll-out, without a hitch.
    * sobre suelo firme = on firm footing.
    * sobre todas las cosas = above all things.
    * sobre todo = above all, above everything else, overwhelmingly, in particular, above all things.
    * Verbo + sobre todo = Verbo + the most.
    * y sobre todo = and worst of all.

    Spanish-English dictionary > sobre2

  • 63 terminal

    adj.
    1 final.
    2 terminal.
    es un enfermo terminal he's terminally ill
    f.
    1 terminal.
    2 outlet connection, terminal.
    m.
    terminal ( Elec & computing).
    terminal videotexto videotext terminal
    * * *
    1 (último) final, terminal
    1 (estación) terminus
    2 (en aeropuerto) terminal
    1 (de ordenador) terminal
    2 (eléctrico) terminal
    \
    terminal aérea air terminal
    terminal conversacional conversational terminal
    terminal interactivo interactive terminal
    * * *
    noun f. adj.
    * * *
    1. ADJ
    1) (=final) [enfermedad, estación] terminal
    2) (Bot) [hoja, rama] terminal
    2.
    SM [a veces]
    SF (Elec, Inform) terminal
    3.
    SF [a veces]
    SM (Aer, Náut) terminal; [de autobuses, trenes] terminus

    terminal de pasajeros, terminal de viajeros — passenger terminal

    * * *
    I
    1) (Bot) terminal
    2) <enfermedad/caso> terminal
    II
    1) (Elec) terminal
    2) (en algunas regiones f) (Inf) terminal
    3) (Chi) terminal III
    III
    femenino ( de autobuses) terminus, bus station; (Aviac) terminal
    * * *
    I
    1) (Bot) terminal
    2) <enfermedad/caso> terminal
    II
    1) (Elec) terminal
    2) (en algunas regiones f) (Inf) terminal
    3) (Chi) terminal III
    III
    femenino ( de autobuses) terminus, bus station; (Aviac) terminal
    * * *
    terminal1
    1 = console, display terminal, search station.

    Ex: Consoles would replace the conventional catalogue and would provide the facility for browsing now afforded by the open stacks.

    Ex: A librarian can use the display terminal at his or her desk to search all catalogs and files online.
    Ex: The article 'The double-up program' describes an easy way to utilize multiple CD-ROM products on the same search station.
    * conexión de terminal dedicada = dedicated terminal connection.
    * emulación de terminales de ordenador = terminal emulation.
    * interrogar un terminal = poll + terminal.
    * operador de terminal = terminal operator.
    * terminal remoto = remote terminal.
    * terminal con pantalla sensible al tacto = touch terminal.
    * terminal de conexión mediante llamada telefónica = dial-in terminal.
    * terminal de devolución = discharge terminal.
    * terminal de impresión = typewriter terminal.
    * terminal de ordenador = terminal, computer terminal.
    * terminal de préstamo = issue terminal.
    * terminal en línea = online terminal.
    * terminal inteligente = intelligent terminal.
    * terminal tonto = dumb terminal.
    * utilizar un terminal = sit at + terminal.

    terminal2
    Nota: Plural terminuses.

    Ex: The article is entitled 'The terminal and the terminus: the prospect of free online bibliographic searching'.

    terminal3

    Ex: The study also investigated whether persons who had consulted the book before committing suicide had life threatening medical illnesses.

    * en fase terminal = terminally ill.
    * enfermo en fase terminal = terminally ill patient.
    * enfermos en fase terminal, los = terminally ill, the.
    * enfermos terminales, los = terminally ill, the.
    * enfermo terminal = terminally ill patient.
    * ficha de dígito terminal = terminal digit card.

    terminal4
    Nota: En tipografía, trazo decorativo de las astas de algunas letras.

    Ex: Alternatively vowels could be cast without accents as kerned letters, with bodies only half as wide as usual, part of the face being cast on the overhang, or kern.

    * con terminales = serifed.
    * terminal ahorquillado = forked serif.
    * terminal curviforme = bracketed serif.
    * terminal en porra = clubbed serif.

    * * *
    A ( Bot) terminal
    B ‹enfermedad/caso› terminal
    los enfermos terminales the terminally ill
    A ( Elec) terminal
    B ( Inf)
    ( en algunas regiones f):tb terminal informático or de computadora or ( Esp) de ordenador terminal, computer terminal
    C ( Telec) cell phone ( AmE); mobile phone ( BrE)
    D terminal3 (↑ terminal (3))
    1 (de autobuses) terminus, bus station
    2 ( Aviac) terminal
    Compuestos:
    freight terminal
    passenger terminal
    nerve ending
    ( AmL) fish warehouse
    * * *

     

    terminal adjetivo ‹enfermedad/caso› terminal;

    ■ sustantivo masculino (Elec, Inf) terminal
    ■ sustantivo femenino ( de autobuses) terminus, bus station;

    (Aviac, Inf) terminal
    terminal
    I m Elec Inform terminal
    II f Av terminal
    (de autobús) terminus: está buscando la terminal sur de autobuses, he is looking for the Southern Bus Station
    III adj (fase, paciente, enfermedad) terminal
    ' terminal' also found in these entries:
    Spanish:
    borne
    - cabezal
    - espigón
    - estación
    English:
    air terminal
    - terminal
    - terminus
    - depot
    - on
    - station
    - terminally
    - VDT
    - work
    * * *
    ♦ adj
    1. [enfermedad] terminal;
    2. Bot terminal
    ♦ nm
    1. Informát terminal
    Am terminal de computadora computer terminal; Esp terminal de ordenador computer terminal;
    terminal de videotexto videotext terminal
    2. Elec terminal;
    terminal negativo/positivo negative/positive terminal
    3. Am terminal pesquero fish warehouse
    ♦ nf
    [de aeropuerto] terminal; [de autobuses] terminus;
    en la terminal nacional/internacional in the national/international terminal
    terminal aérea air terminal;
    terminal de carga freight terminal;
    terminal de contenedores container terminal;
    terminal de pasajeros passenger terminal;
    Am terminal pesquera fish warehouse;
    terminal de vuelo air terminal
    * * *
    I adj terminal;
    estado terminal MED terminal phase
    II m INFOR terminal
    III f AVIA terminal;
    terminal de salidas AVIA departure terminal;
    terminal de autobuses bus station, bus terminal
    * * *
    : terminal
    terminal nm, (in some regions f) : (electric or electronic) terminal
    terminal nf, (in some regions m) : terminal, station
    * * *
    1. (de autobús, tren) terminus [pl. terminuses o termini]
    2. (en aeropuerto) air terminal

    Spanish-English dictionary > terminal

  • 64 EYKT

    f.
    1) half-past three o’clock, p. m. (var þat nær e. dags);
    2) time of three hours (þá er þógn hafði verit nær hálfa e.).
    * * *
    eykð, f. three or half-past three o’clock P. M.; many commentaries have been written upon this word, as by Pal Vídalín Skýr., Finn Johnson in H. E. i. 153 sqq. note 6, and in Horologium, etc. The time of eykð is clearly defined in K. Þ. K. 92 as the time when the sun has past two parts of the ‘útsuðr’ (q. v.) and has one part left, that is to say, half-past three o’clock P. M.: it thus nearly coincides with the eccl. Lat. nona (three o’clock P. M.); and both eykt and nona are therefore used indiscriminately in some passages. Sunset at the time of ‘eykð’ is opposed to sunrise at the time of ‘dagmál,’ q. v. In Norway ‘ykt’ means a luncheon taken about half-past three o’clock. But the passage in Edda—that autumn ends and winter begins at sunset at the time of eykt—confounded the commentators, who believed it to refer to the conventional Icel. winter, which (in the old style) begins with the middle of October, and lasts six months. In the latitude of Reykholt—the residence of Snorri—the sun at this time sets about half-past four. Upon this statement the commentators have based their reasoning both in regard to dagmál and eykt, placing the eykt at half-past four P. M. and dagmál at half-past seven A. M., although this contradicts the definition of these terms in the law. The passage in Edda probably came from a foreign source, and refers not to the Icel. winter but to the astronomical winter, viz. the winter solstice or the shortest day; for sunset at half-past three is suited not to Icel., but to the latitude of Scotland and the southern parts of Scandinavia. The word is also curious from its bearing upon the discovery of America by the ancients, vide Fb. l. c. This sense ( half-past three) is now obsolete in Icel., but eykt is in freq. use in the sense of trihorium, a time of three hours; whereas in the oldest Sagas no passage has been found bearing this sense,—the Bs. i. 385, 446, and Hem. l. c. are of the 13th and 14th centuries. In Norway ykt is freq. used metaph. of all the four meal times in the day, morning-ykt, midday-ykt, afternoon-ykt (or ykt proper), and even-ykt. In old MSS. (Grág., K. Þ. K., Hem., Heið. S.) this word is always spelt eykð or eykþ, shewing the root to be ‘auk’ with the fem. inflex. added; it probably first meant the eke-meal, answering to Engl. lunch, and thence came to mean the time of day at which this meal was taken. The eccl. law dilates upon the word, as the Sabbath was to begin at ‘hora nona;’ hence the phrase, eykt-helgr dagr (vide below). The word can have no relation to átta, eight, or átt, plaga coeli. At present Icel. say, at eykta-mótum, adv. at great intervals, once an eykt, once in three hours.
    I. half-past three; þá er eykð er útsuðrs-átt er deild í þriðjunga, ok hefir sól gengna tvá hluti en einn ógenginn, K. Þ. K. 92; net skal öll upp taka fyrir eykð, 90; helgan dag eptir eykð, 88; ef þeir hafa unnit á eykð, 94; enda skal hann undan honum hafa boðit fyrir miðjan dag en hinn skal hafa kosit at eykþ, Grág. i. 198; ok á maðr kost at stefna fyrir eykþ ef vill, 395; í þat mund dags er tók út eyktina, Fms. xi. 136; eptir eykt dags, rendering of the Lat. ‘vix decima parte diei reliqua,’ Róm. 313; þeir gengu til eyktar, ok höfðu farit árla morguns, en er nón var dags, etc., Fs. 176; at eykð dags þá kómu heim húskarlar Barða. Ísl. ii. 329; nú vættir mik at þar komi þér nær eykð dags, 345; var þat nær eykð dags, 349; var hón at veraldligu verki þangat til er kom eykð, þá fór hón til bænar sinnar at nóni, Hom. (St.) 59.
    COMPDS: eykðarhelgr, eyktarstaðr, eykðartíð.
    II. trihorium; en er liðin var nær ein eykt dags, Bs. i. 446; at þat mundi verit hafa meir en hálf eykt, er hann vissi ekki til sín, 385; þessi flaug vanst um eina eykð dags, Hem. (Hb.)

    Íslensk-ensk orðabók > EYKT

  • 65 ὑπόκειμαι

    ὑπόκειμαι, used as [voice] Pass. of ὑποτίθημι, [tense] fut. ὑποκείσομαι Pi.O.1.85, etc., but [tense] aor. ὑπετέθην:—
    A lie under,

    ὑπὸ δὲ ξύλα κεῖται Il.21.364

    ;

    θεμέλιοι ὑ. Th.1.93

    ;

    τὸν μηρὸν ὑποκείμενον ἔχειν Arist.IA 712b32

    , cf. PA 686a13, 689b18: c. dat.,

    τοιαύτης τῆς κρηπῖδος ὑποκειμένης ταῖς πολιτείαις Pl.Plt. 301e

    : τὰ ὑποκείμενα, opp. τὰ ὑπερκείμενα, Sor.1.8.
    2 of places, lie close to,

    ὑποκειμένης τῆς Εὐβοίας ὑπὸ τὴν Ἀττικήν Isoc. 4.108

    ;

    ὑ. τὸ πεδίον τῷ ἱερῷ Aeschin.3.118

    ;

    λόφος ὑποκείμενος τοῖς Σιννάκοις Plu.Crass.29

    ;

    τὸ τὴν οἰκουμένην ὑποκεῖσθαι πρὸς τοῦτον τὸν τόπον Arist.Mete. 364a7

    , cf.Pr. 941b39;

    <τὰ> πρὸς βορρᾶν καὶ ἄρκτον ὑποκείμενα μέρη τῶν ὀρέων Gp.2.5.1

    ; τὰ ὑποκείμενα ἐδάφη the adjacent soil, D.S.3.50; ἡ-κειμένη χώρα the adjacent country, ibid. (but, the adjacent low lands, Id.2.37, Plu.Sert.17);

    ὄρος ὑπόκειται Plb.5.59.4

     codd. ( ἐπίκ- Schweigh.);

    ὁ ὑποκείμενος ποταμός Id.3.74.2

    ; ὑποκεῖσθαι πρὸς τὴν ο?ὑπόκειμαιXψιν to be presented to the sight, Demetr.Lac.Herc.1013.17.
    3 to be given below in the text,

    κατὰ τὴν.. συγγραφήν, ἧς τὸ ἀντίγραφον ὑπόκειται PCair.Zen.355.122

     (iii B. C.); γράψον.. τοὺς χαρακτῆρας ὡς ὑπόκειται as below, PMag.Par.1.408; λέγε τὸν λόγον τὸν ὑποκείμενον ib.230; ὡς ὑπόκειται as below, Sammelb.5231.11 (i A. D.), etc.; also, as set forth, PKlein.Form.78 (v/vi A. D.).
    II in various metaph. senses,
    1 to be established, set before one (by oneself or another) as an aim or principle, ἐμοὶ μὲν οὗτος ἄεθλος ὑποκείσεται shall be my appointed task, Pi. l. c.; δυοῖν ὑποκειμένοιν ὀνομάτοιν two phrases being prescribed, having legal sanction, D.23.36; ὑπόκειται πρῶτον μὲν διωμοσία, δεύτερον δὲ λόγος the prescribed course is.., ib.71; μένειν ἐπὶ τῶν ὑποκειμένων to abide by one's resolves, Plb.1.19.6, 2.51.1;

    μένειν ἐπὶ τῆς ὑ. γνώμης Id.1.40.5

    ; ἐμοὶ ὑπόκειται ὅτι .. for me it is a fixed principle that.., Hdt.2.123, cf. Arist.Oec. 1343b9;

    νομίζω συμφέρειν.. τοῦθ' ὑποκεῖσθαι D.14.3

    ; τῶν πραγμάτων ἐν οἷς τὰ ὑποκείμενα διαφέρει τῷ εἴδει things of which the principles differ in kind, Arist.Pol. 1275a35; τὰς ὑποκειμένας μοίρας τξ the conventional 3600, Ptol.Alm.5.1.
    2 to be assumed as a hypothesis (cf.

    ὑπόθεσις 111

    ), Pl.Cra. 436d, al.; ὑπέκειτο μὴ οἷόν τε εἶναι .. Id.Erx. 404b;

    τούτων ὑποκειμένων Id.Prt. 359a

    , R. 478e; τὴν ἐκ τῶν -κειμένων ἀρίστην [πολιτείαν] the best (possible) in the circumstances, opp. to τὴν κρατίστην ἁπλῶς and to τὴν ἐξ ὑποθέσεως, Arist. Pol. 1288b26;

    ὑποκείσθω τι

     let it be taken for granted,

    Id.EN 1103b32

    , cf. 1129a11, al., Gal.15.175; ὑποκείσθω ὅτι .. let it be taken for granted that.., Arist.Pol. 1323b40;

    ὑ. εἶναι τὴν ἡδονὴν κίνησιν Id.Rh. 1369b33

    : so with a nom., ὑ. ἡ ἀρετὴ εἶναι .. Id.EN 1104b27, cf. Rh. 1357a11: c. part.,

    τοιόνδε ζῷον ὑ. ὄν Id.GA 778b17

    : without any Verb, ἡ τοῦ δέρματος φύσις ὑ. γεώδης (sc. εἶναι or οὖσα) ib. 782a29, etc.: cf. ὑποτίθημι IV. 1.
    4 to be in prospect,

    ἐλπὶς ὑπόκειται σφαλεῖσι κἂν αὐτοὺς διασῴζεσθαι Th.3.84

    ;

    αἱ ὑποκείμεναι προσδοκίαι καὶ αἱ ἐλπίδες D.19.24

    ; παρ' ὑμῖν ὀργὴ μεγάλη καὶ τιμωρία ὑπόκειται τοῖς τὰ ψευδῆ μαρτυροῦσι is reserved for them, Id.34.19, cf. Lycurg.130; δυοῖν κινδύνοιν -κειμένοιν ibid.;

    ὁρᾶν τὸν θάνατον ὑποκείμενον PPetr.3p.73

     (iii B. C.);

    φόβου ὑποκειμένου ὅτι οἴσει τι βέβαιον παρὰ σοῦ PSI4.380.3

     (iii B. C.);

    τοῦτο καὶ τοῖς μηθὲν ἀσεβὲς ἐπιτελεσαμένοις κατὰ τοὺς τοῦ πολέμου νόμους ὑπόκειται παθεῖν Plb.2.58.10

    .
    5 to be subject to, submit to,

    τῷ ἄρχοντι Pl.Grg. 510c

    ;

    βασιλεῖ Philostr. VA3.20

    ;

    πατράσιν POxy. 237 vii 16

     (ii A. D.);

    ἐξετάσεσιν PFlor.33.14

     (iv A. D.);

    βασάνοις POxy.58.25

     (iii A. D.): abs., pay court to one,

    ὑποκείσονται δεόμενοι καὶ τιμῶντες Pl.R. 494c

    ; τῷ λόγῳ to be captivated by the story, Philostr.VA6.14;

    θρῆνοι -κείμενοι

     subdued,

    Id.VS2.4.2

    .
    6 to be subject to, liable to a penalty, Supp.Epigr.6.424, cf. 415,421, al. ([place name] Iconium), PLond.1.77.53 (vi A. D.): also c. acc.,

    ὑποκείσεται τῷ φίσκῳ δηνάρια πεντακόσια Rev.Phil.36.61

     ([place name] Iconium).
    7 to be pledged or mortgaged, c. gen., for a certain sum, Is.6.33, D.49.11,35;

    ναῦς ὑποκειμένη ἡμῖν Id.56.4

    ; τὰ ὑποκείμενα the articles pledged, Syngr. ap.D.35.12; the mortgaged property, SIG1044.28 (Halic., iv/iii B. C.);

    ἐνέχυρα-κείμενα IG12(7).58

     ([place name] Amorgos); ὑποκείμενοι, of slaves pledged for a sum of money, D.27.9.
    b of payments, to have been granted or allocated, ἀποφαίνουσιν ὑποκεῖσθαι ἐν τῇ γραφῇ τῶν εἰς τὰ ἱερὰ (sc. ὑποκειμένων)

    δίδοσθαι κτλ. UPZ21.4

     (ii B. C.), cf. 23.21 (ii B. C.), BGU 1197.4, 1200.28 (both i B. C.): Subst. ὑποκείμενα, τά, = φιλάνθρωπα, salary ( ear-marked proceeds of taxes),

    τὰ ἐπιβάλλοντά μοι ἐκ τοῦ ἱεροῦ ὑ. PLond.2.357.9

    , cf. 5 (i A. D.);

    ὑ. αἰτεῖ ἀπὸ τῶν κωμῶν BGU23.12

     (ii/iii A. D.), cf. OGI665.19,26 (Egypt, i A. D.): c. dat., as part of name of specific taxes,

    ὑ. βασιλικῇ γραμματείᾳ

     ear-marked for the benefit of..,

    PPar.17.22

     (ii A. D.);

    ὑ. τοπογραμματείᾳ PSI1.101.18

     (ii A. D.), cf. POxy.1436.23 (ii A. D.), etc.: also in sg.,

    ὑποκείμενον ἐπιστρατηγία BGU 199.14

     (ii A. D.), cf. PFlor.375.22 (ii A. D.), etc.: also c. gen.,

    ὑ. ἐννομίου PRyl.213.72

    , al. (ii A. D.); τοπαρχίας ib.73, etc.
    8 in Philosophy, to underlie, as the foundation in which something else inheres, to be implied or presupposed by something else,

    ἑκάστῳ τῶν ὀνομάτων.. ὑ. τις ἴδιος οὐσία Pl.Prt. 349b

    , cf. Cra. 422d, R. 581c, Ti.Locr.97e: τὸ ὑποκείμενον has three main applications: (1) to the matter which underlies the form, opp. εἶδος, ἐντελέχεια, Arist.Metaph. 983a30; (2) to the substance (matter + form) which underlies the accidents, opp. πάθη, συμβεβηκότα, Id.Cat. 1a20,27, Metaph. 1037b16, 983b16; (3) to the logical subject to which attributes are ascribed, opp. τὸ κατηγορούμενον, Id.Cat. 1b10,21, Ph. 189a31: applications (1 ) and (2 ) are distinguished in Id.Metaph. 1038b5, 1029a1-5, 1042a26-31: τὸ ὑ. is occasionally used of what underlies or is presupposed in some other way, e. g. of the positive termini presupposed by change, Id.Ph. 225a3-7.
    b exist, τὸ ἐκτὸς ὑποκείμενον the external reality, Stoic.2.48, cf. Epicur.Ep.1pp.12,24 U.;

    φῶς εἶναι τὸ χρῶμα τοῖς ὑ. ἐπιπῖπτον Aristarch.

     Sam. ap. Placit.1.15.5;

    τὸ κρῖνον τί τε φαίνεται μόνον καὶ τί σὺν τῷ φαίνεσθαι ἔτι καὶ κατ' ἀλήθειαν ὑπόκειται S.E.M.7.143

    , cf. 83,90,91, 10.240; = ὑπάρχω, τὰ ὑποκείμενα πράγματα the existing state of affairs, Plb.11.28.2, cf. 11.29.1, 15.8.11,13, 3.31.6, Eun.VSp.474 B.;

    Τίτος ἐξ ὑποκειμένων ἐνίκα, χρώμενος ὁπλις μοῖς καὶ τάξεσιν αἷς παρέλαβε Plu.Comp.Phil.Flam.2

    ;

    τῆς αὐτῆς δυνάμεως ὑποκειμένης Id.2.336b

    ;

    ἐχομένου τοῦ προσιόντος λόγου ὡς πρὸς τὸν ὑποκείμενον A.D.Synt.122.17

    .
    c ὁ ὑ. ἐνιαυτός the year in question, D.S.11.75; οἱ ὑ. καιροί the time in question, Id.16.40, Plb.2.63.6, cf. Plu.Comp.Sol.Publ.4; τοῦ ὑ. μηνός the current month, PTeb.14.14 (ii B. C.), al.; ἐκ τοῦ ὑ. φόρου in return for a reduction from the said rent, PCair.Zen.649.18 (iii B. C.); πρὸς τὸ ὑ. νόει according to the context, Gp.6.11.7.
    9 in logical arrangement, to be subject or subordinate,

    τῇ.. ἰατρικῇ.. ἡ ὀψοποιικὴ.. ὑ. Pl. Grg. 465b

    ;

    ὁ τὴν καθόλου ἐπιστήμην ἔχων οἶδέ πως πάντα τὰ ὑποκείμενα Arist.Metaph. 982a23

    , cf. APo. 91a11;

    ἑκάστη [τέχνη] περὶ τὸ αὐτῇ ὑ. ἐστι διδασκαλική Id.Rh. 1355b28

    .
    b ἡ ὑ. ὕλη the subject-matter of a science or treatise, Id.EN 1094b12, 1098a28, Phld.Po.Herc.1676.3 (pl.); τὸ ὑ. the part affected by a disease, Plb.1.81.6.
    III trans., = ὑποτέθειμαι, I have appended,

    ὧν τὸ καθ' ἓν ὑπόκειμαι PTeb. 140

     (i B. C.); cf. παράκειμαι ([place name] Addenda).

    Greek-English dictionary (Αγγλικά Ελληνικά-λεξικό) > ὑπόκειμαι

  • 66 Fox, Samson

    [br]
    b. 11 July 1838 Bowling, near Bradford, Yorkshire, England
    d. 24 October 1903 Walsall, Staffordshire, England
    [br]
    English engineer who invented the corrugated boiler furnace.
    [br]
    He was the son of a cloth mill worker in Leeds and at the age of 10 he joined his father at the mill. Showing a mechanical inclination, he was apprenticed to a firm of machine-tool makers, Smith, Beacock and Tannett. There he rose to become Foreman and Traveller, and designed and patented tools for cutting bevelled gears. With his brother and one Refitt, he set up the Silver Cross engineering works for making special machine tools. In 1874 he founded the Leeds Forge Company, acting as Managing Director until 1896 and then as Chairman until shortly before his death.
    It was in 1877 that he patented his most important invention, the corrugated furnace for steam-boilers. These furnaces could withstand much higher pressures than the conventional form, and higher working pressures in marine boilers enabled triple-expansion engines to be installed, greatly improving the performance of steamships, and the outcome was the great ocean-going liners of the twentieth century. The first vessel to be equipped with the corrugated furnace was the Pretoria of 1878. At first the furnaces were made by hammering iron plates using swage blocks under a steam hammer. A plant for rolling corrugated plates was set up at Essen in Germany, and Fox installed a similar mill at his works in Leeds in 1882.
    In 1886 Fox installed a Siemens steelmaking plant and he was notable in the movement for replacing wrought iron with steel. He took out several patents for making pressed-steel underframes for railway wagons. The business prospered and Fox opened a works near Chicago in the USA, where in addition to wagon underframes he manufactured the first American pressed-steel carriages. He later added a works at Pittsburgh.
    Fox was the first in England to use water gas for his metallurgical operations and for lighting, with a saving in cost as it was cheaper than coal gas. He was also a pioneer in the acetylene industry, producing in 1894 the first calcium carbide, from which the gas is made.
    Fox took an active part in public life in and around Leeds, being thrice elected Mayor of Harrogate. As a music lover, he was a benefactor of musicians, contributing no less than £45,000 towards the cost of building the Royal College of Music in London, opened in 1894. In 1897 he sued for libel the author Jerome K.Jerome and the publishers of the Today magazine for accusing him of misusing his great generosity to the College to give a misleading impression of his commercial methods and prosperity. He won the case but was not awarded costs.
    [br]
    Principal Honours and Distinctions
    Royal Society of Arts James Watt Silver Medal and Howard Gold Medal. Légion d'honneur 1889.
    Bibliography
    1877, British Patent nos. 1097 and 2530 (the corrugated furnace or "flue", as it was often called).
    Further Reading
    Obituary, 1903, Proceedings of the Institution of Mechanical Engineers: 919–21.
    Obituary, 1903, Proceedings of the Institution of Civil Engineers (the fullest of the many obituary notices).
    G.A.Newby, 1993, "Behind the fire doors: Fox's corrugated furnace 1877 and the high pressure steamship", Transactions of the Newcomen Society 64.
    LRD

    Biographical history of technology > Fox, Samson

  • 67 Junghans, Siegfried

    SUBJECT AREA: Metallurgy
    [br]
    b. 1887
    d. 1954
    [br]
    German pioneer of the continuous casting of metals.
    [br]
    Junghans was of the family that owned Gebrüder Junghans, one of the largest firms in the German watch-and clockmaking industry. From 1906 to 1918 he served in the German Army, after which he took a course in metallurgy and analytical chemistry at the Technical High School in Stuttgart. Junghans was then given control of the brassworks owned by his family. He wanted to make castings simply and cheaply, but he found that he lacked the normal foundry equipment. By 1927, formulating his ideas on continuous casting, he had conceived a way of overcoming this deficiency and began experiments. By the time the firm was taken over by Wieland-Werke AG in 1931, Junghans had achieved positive results. A test plant was erected in 1932, and commercial production of continuously cast metal followed the year after. Wieland told Junghans that a brassfounder who had come up through the trade would never have hit on the idea: it took an outsider like Junghans to do it. He was made Technical Director of Wielands but left in 1935 to work privately on the development of continuous casting for all metals. He was able to license the process for non-ferrous metals during 1936–9 in Germany and other countries, but the Second World War interrupted his work; however, the German government supported him and a production plant was built. In 1948 he was able to resume work on the continuous casting of steel, which he had been considering since 1936. He pushed on in spite of financial difficulties and produced the first steel by this process at Schorndorf in March 1949. From 1950 he made agreements with four firms to work towards the pilot plant stage, and this was achieved in 1954 at Mannesmann's Huckingen works. The aim of continuous casting is to bypass the conventional processes of casting molten steel into ingots, reheating the ingots and shaping them by rolling them in a large mill. Essentially, in continuous casting, molten steel is drawn through the bottom of a ladle and down through a water-cooled copper mould. The unique feature of Junghans's process was the vertically reciprocating mould, which prevented the molten metal sticking as it passed through. A continuous length of steel is taken off and cooled until it is completely solidified into the required shape. The idea of continuous casting can be traced back to Bessemer, and although others tried to apply it later, they did not have any success. It was Junghans who, more than anybody, made the process a reality.
    [br]
    Further Reading
    K.Sperth and A.Bungeroth, 1953, "The Junghans method of continuous casting of steel", Metal Treatment and Drop Forging, Mayn.
    J.Jewkes et al., 1969, The Sources of Invention, 2nd edn, London: Macmillan, pp. 287 ff.
    LRD

    Biographical history of technology > Junghans, Siegfried

  • 68 Moulton, Alexander

    [br]
    b. 9 April 1920 Stratford-on-Avon
    [br]
    English inventor of vehicle suspension systems and the Moulton bicycle.
    [br]
    He spent his childhood at The Hall in Bradfordon-Avon. He was educated at Marlborough College, and in 1937 was apprenticed to the Sentinel Steam Wagon Company of Shrewsbury. About that same time he went to King's College, Cambridge, where he took the Mechanical Sciences Tripos. It was then wartime, and he did research on aero-engines at the Bristol Aeroplane Company, where he became Personal Assistant to Sir Roy Fedden. He left Bristol's in 1945 to join his family firm, Spencer \& Moulton, of which he eventually became Technical Director and built up the Research Department. In 1948 he invented his first suspension unit, the "Flexitor", in which an inner shaft and an outer shell were separated by an annular rubber body which was bonded to both.
    In 1848 his great-grandfather had founded the family firm in an old woollen mill, to manufacture vulcanized rubber products under Charles Goodyear's patent. The firm remained a family business with Spencer's, consultants in railway engineering, until 1956 when it was sold to the Avon Rubber Company. He then formed Moulton Developments to continue his work on vehicle suspensions in the stables attached to The Hall. Sponsored by the British Motor Corporation (BMC) and the Dunlop Rubber Company, he invented a rubber cone spring in 1951 which was later used in the BMC Mini (see Issigonis, Sir Alexander Arnold Constantine): by 1994 over 4 million Minis had been fitted with these springs, made by Dunlop. In 1954 he patented the Hydrolastic suspension system, in which all four wheels were independently sprung with combined rubber springs and damper assembly, the weight being supported by fluid under pressure, and the wheels on each side being interconnected, front to rear. In 1962 he formed Moulton Bicycles Ltd, having designed an improved bicycle system for adult use. The conventional bicycle frame was replaced by a flat-sided oval steel tube F-frame on a novel rubber front and rear suspension, with the wheel size reduced to 41 cm (16 in.) with high-pressure tyres. Raleigh Industries Ltd having refused his offer to produce the Moulton Bicycle under licence, he set up his own factory on his estate, producing 25,000 bicycles between 1963 and 1966. In 1967 he sold out to Raleigh and set up as Bicycle Consultants Ltd while continuing the suspension development of Moulton Developments Ltd. In the 1970s the combined firms employed some forty staff, nearly 50 per cent of whom were graduates.
    He won the Queen's Award for Industry in 1967 for technical innovation in Hydrolastic car suspension and the Moulton Bicycle. Since that time he has continued his innovative work on suspensions and the bicycle. In 1983 he introduced the AM bicycle series of very sophisticated space-frame design with suspension and 43 cm (17 in.) wheels; this machine holds the world speed record fully formed at 82 km/h (51 mph). The current Rover 100 and MGF use his Hydragas interconnected suspension. By 1994 over 7 million cars had been fitted with Moulton suspensions. He has won many design awards and prizes, and has been awarded three honorary doctorates of engineering. He is active in engineering and design education.
    [br]
    Principal Honours and Distinctions
    Queen's Award for Industry 1967; CBE; RDI. Fellow of the Royal Academy of Engineering.
    Further Reading
    P.R.Whitfield, 1975, Creativity in Industry, London: Penguin Books.
    IMcN

    Biographical history of technology > Moulton, Alexander

  • 69 Muybridge, Eadweard

    [br]
    b. 9 April 1830 Kingston upon Thames, England
    d. 8 May 1904 Kingston upon Thames, England
    [br]
    English photographer and pioneer of sequence photography of movement.
    [br]
    He was born Edward Muggeridge, but later changed his name, taking the Saxon spelling of his first name and altering his surname, first to Muygridge and then to Muybridge. He emigrated to America in 1851, working in New York in bookbinding and selling as a commission agent for the London Printing and Publishing Company. Through contact with a New York daguerreotypist, Silas T.Selleck, he acquired an interest in photography that developed after his move to California in 1855. On a visit to England in 1860 he learned the wet-collodion process from a friend, Arthur Brown, and acquired the best photographic equipment available in London before returning to America. In 1867, under his trade pseudonym "Helios", he set out to record the scenery of the Far West with his mobile dark-room, christened "The Flying Studio".
    His reputation as a photographer of the first rank spread, and he was commissioned to record the survey visit of Major-General Henry W.Halleck to Alaska and also to record the territory through which the Central Pacific Railroad was being constructed. Perhaps because of this latter project, he was approached by the President of the Central Pacific, Leland Stanford, to attempt to photograph a horse trotting at speed. There was a long-standing controversy among racing men as to whether a trotting horse had all four hooves off the ground at any point; Stanford felt that it did, and hoped than an "instantaneous" photograph would settle the matter once and for all. In May 1872 Muybridge photographed the horse "Occident", but without any great success because the current wet-collodion process normally required many seconds, even in a good light, for a good result. In April 1873 he managed to produce some better negatives, in which a recognizable silhouette of the horse showed all four feet above the ground at the same time.
    Soon after, Muybridge left his young wife, Flora, in San Francisco to go with the army sent to put down the revolt of the Modoc Indians. While he was busy photographing the scenery and the combatants, his wife had an affair with a Major Harry Larkyns. On his return, finding his wife pregnant, he had several confrontations with Larkyns, which culminated in his shooting him dead. At his trial for murder, in February 1875, Muybridge was acquitted by the jury on the grounds of justifiable homicide; he left soon after on a long trip to South America.
    He again took up his photographic work when he returned to North America and Stanford asked him to take up the action-photography project once more. Using a new shutter design he had developed while on his trip south, and which would operate in as little as 1/1,000 of a second, he obtained more detailed pictures of "Occident" in July 1877. He then devised a new scheme, which Stanford sponsored at his farm at Palo Alto. A 50 ft (15 m) long shed was constructed, containing twelve cameras side by side, and a white background marked off with vertical, numbered lines was set up. Each camera was fitted with Muybridge's highspeed shutter, which was released by an electromagnetic catch. Thin threads stretched across the track were broken by the horse as it moved along, closing spring electrical contacts which released each shutter in turn. Thus, in about half a second, twelve photographs were obtained that showed all the phases of the movement.
    Although the pictures were still little more than silhouettes, they were very sharp, and sequences published in scientific and photographic journals throughout the world excited considerable attention. By replacing the threads with an electrical commutator device, which allowed the release of the shutters at precise intervals, Muybridge was able to take series of actions by other animals and humans. From 1880 he lectured in America and Europe, projecting his results in motion on the screen with his Zoopraxiscope projector. In August 1883 he received a grant of $40,000 from the University of Pennsylvania to carry on his work there. Using the vastly improved gelatine dry-plate process and new, improved multiple-camera apparatus, during 1884 and 1885 he produced over 100,000 photographs, of which 20,000 were reproduced in Animal Locomotion in 1887. The subjects were animals of all kinds, and human figures, mostly nude, in a wide range of activities. The quality of the photographs was extremely good, and the publication attracted considerable attention and praise.
    Muybridge returned to England in 1894; his last publications were Animals in Motion (1899) and The Human Figure in Motion (1901). His influence on the world of art was enormous, over-turning the conventional representations of action hitherto used by artists. His work in pioneering the use of sequence photography led to the science of chronophotography developed by Marey and others, and stimulated many inventors, notably Thomas Edison to work which led to the introduction of cinematography in the 1890s.
    [br]
    Bibliography
    1887, Animal Locomotion, Philadelphia.
    1893, Descriptive Zoopraxography, Pennsylvania. 1899, Animals in Motion, London.
    Further Reading
    1973, Eadweard Muybridge: The Stanford Years, Stanford.
    G.Hendricks, 1975, Muybridge: The Father of the Motion Picture, New York. R.Haas, 1976, Muybridge: Man in Motion, California.
    BC

    Biographical history of technology > Muybridge, Eadweard

  • 70 Seguin, Marc

    [br]
    b. 20 April 1786 Annonay, Ardèche, France
    d. 24 February 1875 Annonay, Ardèche, France
    [br]
    French engineer, inventor of multi-tubular firetube boiler.
    [br]
    Seguin trained under Joseph Montgolfier, one of the inventors of the hot-air balloon, and became a pioneer of suspension bridges. In 1825 he was involved in an attempt to introduce steam navigation to the River Rhône using a tug fitted with a winding drum to wind itself upstream along a cable attached to a point on the bank, with a separate boat to transfer the cable from point to point. The attempt proved unsuccessful and was short-lived, but in 1825 Seguin had decided also to seek a government concession for a railway from Saint-Etienne to Lyons as a feeder of traffic to the river. He inspected the Stockton \& Darlington Railway and met George Stephenson; the concession was granted in 1826 to Seguin Frères \& Ed. Biot and two steam locomotives were built to their order by Robert Stephenson \& Co. The locomotives were shipped to France in the spring of 1828 for evaluation prior to construction of others there; each had two vertical cylinders, one each side between front and rear wheels, and a boiler with a single large-diameter furnace tube, with a watertube grate. Meanwhile, in 1827 Seguin, who was still attempting to produce a steamboat powerful enough to navigate the fast-flowing Rhône, had conceived the idea of increasing the heating surface of a boiler by causing the hot gases from combustion to pass through a series of tubes immersed in the water. He was soon considering application of this type of boiler to a locomotive. He applied for a patent for a multi-tubular boiler on 12 December 1827 and carried out numerous experiments with various means of producing a forced draught to overcome the perceived obstruction caused by the small tubes. By May 1829 the steam-navigation venture had collapsed, but Seguin had a locomotive under construction in the workshops of the Lyons-Sain t- Etienne Railway: he retained the cylinder layout of its Stephenson locomotives, but incorporated a boiler of his own design. The fire was beneath the barrel, surrounded by a water-jacket: a single large flue ran towards the front of the boiler, whence hot gases returned via many small tubes through the boiler barrel to a chimney above the firedoor. Draught was provided by axle-driven fans on the tender.
    Seguin was not aware of the contemporary construction of Rocket, with a multi-tubular boiler, by Robert Stephenson; Rocket had its first trial run on 5 September 1829, but the precise date on which Seguin's locomotive first ran appears to be unknown, although by 20 October many experiments had been carried out upon it. Seguin's concept of a multi-tubular locomotive boiler therefore considerably antedated that of Henry Booth, and his first locomotive was completed about the same date as Rocket. It was from Rocket's boiler, however, rather than from that of Seguin's locomotive, that the conventional locomotive boiler was descended.
    [br]
    Bibliography
    February 1828, French patent no. 3,744 (multi-tubular boiler).
    1839, De l'Influence des chemins de fer et de l'art de les tracer et de les construire, Paris.
    Further Reading
    F.Achard and L.Seguin, 1928, "Marc Seguin and the invention of the tubular boiler", Transactions of the Newcomen Society 7 (traces the chronology of Seguin's boilers).
    ——1928, "British railways of 1825 as seen by Marc Seguin", Transactions of the Newcomen Society 7.
    J.B.Snell, 1964, Early Railways, London: Weidenfeld \& Nicolson.
    J.-M.Combe and B.Escudié, 1991, Vapeurs sur le Rhône, Lyons: Presses Universitaires de Lyon.
    PJGR

    Biographical history of technology > Seguin, Marc

  • 71 Szilard, Leo

    SUBJECT AREA: Weapons and armour
    [br]
    b. 11 February 1898 Budapest, Hungary
    d. 30 May 1964 La Jolla, California, USA
    [br]
    Hungarian (naturalized American in 1943) nuclear-and biophysicist.
    [br]
    The son of an engineer, Szilard, after service in the Austro-Hungarian army during the First World War, studied electrical engineering at the University of Berlin. Obtaining his doctorate there in 1922, he joined the faculty and concentrated his studies on thermodynamics. He later began to develop an interest in nuclear physics, and in 1933, shortly after Hitler came to power, Szilard emigrated to Britain because of his Jewish heritage.
    In 1934 he conceived the idea of a nuclear chain reaction through the breakdown of beryllium into helium and took out a British patent on it, but later realized that this process would not work. In 1937 he moved to the USA and continued his research at the University of Columbia, and the following year Hahn and Meitner discovered nuclear fission with uranium; this gave Szilard the breakthrough he needed. In 1939 he realized that a nuclear chain reaction could be produced through nuclear fission and that a weapon with many times the destructive power of the conventional high-explosive bomb could be produced. Only too aware of the progress being made by German nuclear scientists, he believed that it was essential that the USA should create an atomic bomb before Hitler. Consequently he drafted a letter to President Roosevelt that summer and, with two fellow Hungarian émigrés, persuaded Albert Einstein to sign it. The result was the setting up of the Uranium Committee.
    It was not, however, until December 1941 that active steps began to be taken to produce such a weapon and it was a further nine months before the project was properly co-ordinated under the umbrella of the Manhattan Project. In the meantime, Szilard moved to join Enrico Fermi at the University of Chicago and it was here, at the end of 1942, in a squash court under the football stadium, that they successfully developed the world's first self-sustaining nuclear reactor. Szilard, who became an American citizen in 1943, continued to work on the Manhattan Project. In 1945, however, when the Western Allies began to believe that only the atomic bomb could bring the war against Japan to an end, Szilard and a number of other Manhattan Project scientists objected that it would be immoral to use it against populated targets.
    Although he would continue to campaign against nuclear warfare for the rest of his life, Szilard now abandoned nuclear research. In 1946 he became Professor of Biophysics at the University of Chicago and devoted himself to experimental work on bacterial mutations and biochemical mechanisms, as well as theoretical research on ageing and memory.
    [br]
    Principal Honours and Distinctions
    Atoms for Peace award 1959.
    Further Reading
    Kosta Tsipis, 1985, Understanding Nuclear Weapons, London: Wildwood House, pp. 16–19, 26, 28, 32 (a brief account of his work on the atomic bomb).
    A collection of his correspondence and memories was brought out by Spencer Weart and Gertrud W.Szilard in 1978.
    CM

    Biographical history of technology > Szilard, Leo

  • 72 Titt, John Wallis

    [br]
    b. 1841 Cheriton, Wiltshire, England
    d. May 1910 Warminster, Wiltshire, England
    [br]
    English agricultural engineer and millwright who developed a particular form of wind engine.
    [br]
    John Wallis Titt grew up on a farm which had a working post-mill, but at 24 years of age he joined the firm of Wallis, Haslam \& Stevens, agricultural engineers and steam engine builders in Basingstoke. From there he went to the millwrighting firm of Brown \& May of Devizes, where he worked for five years.
    In 1872 he founded his own firm in Warminster, where his principal work as an agricultural engineer was on hay and straw elevators. In 1876 he moved his firm to the Woodcock Ironworks, also in Warminster. There he carried on his work as an agricultural engineer, but he also had an iron foundry. By 1884 the firm was installing water pumps on estates around Warminster, and it was about that time that he built his first wind engines. Between 1884 and 1903, when illness forced his retirement, his wind engines were built primarily with adjustable sails. These wind engines, under the trade marks "Woodcock" and "Simplex", consisted of a lattice tower with the sails mounted on a a ring at the top. The sails were turned to face the wind by means of a fantail geared to the ring or by a wooden vane. The important feature lay in the sails, which were made of canvas on a wood-and-iron frame mounted in a ring. The ends of the sail frames were hinged to the sail circumferences. In the middle of the sail a circular strap was attached so that all the frames had the same aspect for a given setting of the bar. The importance lies in the adjustable sails, which gave the wind engine the ability to work in variable winds.
    Whilst this was not an original patent of John Wallis Titt, he is known to be the only maker of wind engines in Britain who built his business on this highly efficient form of sail. In design terms it derives from the annular sails of the conventional windmills at Haverhill in Suffolk and Roxwell in Essex. After his retirement, his sons reverted to the production of the fixed-bladed galvanized-iron wind engine.
    [br]
    Further Reading
    J.K.Major, 1977, The Windmills of John Wallis Titt, The International Molinological Society.
    E.Lancaster Burne, 1906, "Wind power", Cassier' Magazine 30:325–6.
    KM

    Biographical history of technology > Titt, John Wallis

  • 73 выше

    •

    Efficiency is better than 96% at full load.

    •

    If the pressure is above (or higher than, or over) 3 mm,...

    •

    When heating is continued beyond 1403°C the gamma iron changes to delta iron.

    •

    Temperatures upwards of 50 million degrees are required.

    II
    •

    In the reactions described above (or in the above-described reactions)...

    •

    The coefficients DAB and DAM employed in the foregoing (or above, or previously) are the common mutual diffusion coefficients.

    •

    Water production above a given point on the river...

    * * *
    Выше -- above, beyond, higher, in excess of, plus, upwards
     Cooling fans and thermocouple reader were timed to switch on and remain so as long as the furnace temperature was above 100oC.
     As the heat flux increased beyond this value, additional sites became active.
     The water-cooled combustor operating with preheated air produces combustion gas products at temperatures in excess of 4600° F.
     We would like to know if you have done or have contemplated doing any higher speed work (e.g. 10,000 plus rpm). (... например, выше 10 000 об/мин)
     There is no reason why this type of apparatus should not work at 10,000 rpm and upwards.
    Выше на (15-25%)-- The measured torque of all the arched bearings was 15 to 25 percent higher in every case than that of the conventional bearing.
    —выше на

    Русско-английский научно-технический словарь переводчика > выше

  • 74 Worsdell, Nathaniel

    [br]
    b. 10 October 1809 London, England
    d. 24 July 1886 Birkenhead, England
    [br]
    English coachbuilder and inventor.
    [br]
    Worsdell \& Son, Coachbuilders, was set up in Liverpool by Thomas Clarke Worsdell and his son Nathaniel in 1827. They were introduced to George Stephenson and built the tender for Rocket. More importantly, they designed and built for the Liverpool \& Manchester Railway coaches of a type comprising three coach bodies, of contemporary road-coach pattern, mounted together on a rail-wagon underframe. This became the prototype for the conventional, compartment railway coach. Nathaniel Worsdell subsequently became Carriage Superintendent of the Grand Junction Railway and patented the first mail-bag-exchange apparatus early in 1838. The terms he required for its use by the Post Office were too steep, however, and the first bagexchange apparatus of the type subsequently used extensively on British railways was designed later the same year by John Ramsey, a senior Post Office clerk.
    [br]
    Further Reading
    J.Marshall, 1978, A Biographical Dictionary of Railway Engineers, Newton Abbot: David \& Charles (the article on Worsdell is derived from family records).
    C.Hamilton Ellis, 1958, Twenty Locomotive Men, Shepperton: Ian Allan.
    P.J.G.Ransom, 1990, The Victorian Railway and How It Evolved, London: Heinemann.
    PJGR

    Biographical history of technology > Worsdell, Nathaniel

  • 75 terminal1

    1 = console, display terminal, search station.
    Ex. Consoles would replace the conventional catalogue and would provide the facility for browsing now afforded by the open stacks.
    Ex. A librarian can use the display terminal at his or her desk to search all catalogs and files online.
    Ex. The article 'The double-up program' describes an easy way to utilize multiple CD-ROM products on the same search station.
    ----
    * conexión de terminal dedicada = dedicated terminal connection.
    * emulación de terminales de ordenador = terminal emulation.
    * interrogar un terminal = poll + terminal.
    * operador de terminal = terminal operator.
    * terminal remoto = remote terminal.
    * terminal con pantalla sensible al tacto = touch terminal.
    * terminal de conexión mediante llamada telefónica = dial-in terminal.
    * terminal de devolución = discharge terminal.
    * terminal de impresión = typewriter terminal.
    * terminal de ordenador = terminal, computer terminal.
    * terminal de préstamo = issue terminal.
    * terminal en línea = online terminal.
    * terminal inteligente = intelligent terminal.
    * terminal tonto = dumb terminal.
    * utilizar un terminal = sit at + terminal.

    Spanish-English dictionary > terminal1

  • 76 из вышеизложенного очевидно

    Из вышеизложенного ясно / очевидно, что
     From the foregoing, it is evident that the tip heat transfer would be underestimated if it were to be evaluated using the conventional correlation.
     As is evident from the above, the cooldown rate depends on the temperature difference.
     It is clear from the foregoing discussion that geometrical and fluid flow effects combine to make axial misalignment the most critical mode.

    Русско-английский научно-технический словарь переводчика > из вышеизложенного очевидно

  • 77 из вышеизложенного ясно

    Из вышеизложенного ясно / очевидно, что
     From the foregoing, it is evident that the tip heat transfer would be underestimated if it were to be evaluated using the conventional correlation.
     As is evident from the above, the cooldown rate depends on the temperature difference.
     It is clear from the foregoing discussion that geometrical and fluid flow effects combine to make axial misalignment the most critical mode.

    Русско-английский научно-технический словарь переводчика > из вышеизложенного ясно

  • 78 рабочая наибольшая отключающая способность

    1. service short-circuit breaking capacity

     

     

    рабочая наибольшая отключающая способность
    Отключающая способность, для которой согласно предписанным условиям, в соответствии с установленным циклом испытаний, предполагают способность данного выключателя длительно проводить свой номинальный ток.
    [ ГОСТ Р 50030. 2-99 ( МЭК 60947-2-98)]

    рабочая наибольшая отключающая способность
    Отключающая способность, для которой предписанные условия соответственно указанному циклу испытаний предусматривают способность выключателя проводить в течение условного времени ток, равный 0,85 тока нерасцепления.
    [ ГОСТ Р 50345-99( МЭК 60898-95)]

    рабочая отключающая способность при коротком замыкании
    -
    [IEV number 442-05-50]

    EN

    service short-circuit breaking capacity
    a breaking capacity for which the prescribed conditions according to a specified test sequence include the capability of the circuit-breaker to carry its rated current continuously
    [IEC 60947-2, ed. 4.0 (2006-05)]

    service short-circuit breaking capacity
    a breaking capacity for which the prescribed conditions according to a specified test sequence include the capability of the circuit-breaker to carry 0,85 times its non-tripping current for the conventional time
    Source: see 442-05-54, 55
    [IEV number 442-05-50]

    FR

    pouvoir de coupure de service en court-circuit
    pouvoir de coupure pour lequel les conditions prescrites suivant une séquence d’essais spécifiée comprennent l’aptitude du disjoncteur à être parcouru en permanence par son courant assigné
    [IEC 60947-2, ed. 4.0 (2006-05)]

    pouvoir de coupure de service en court-circuit
    pouvoir de coupure pour lequel les conditions prescrites suivant une séquence d'essai spécifiée comprennent l'aptitude du disjoncteur à être parcouru par un courant égal à 0,85 fois son courant de non-déclenchement pendant le temps conventionnel
    Source: voir 442-05-54, 55
    [IEV number 442-05-50]


     

    Тематики

    Синонимы

    ПримечаниеТермин по МЭС 442-05-50

    EN

    DE

    FR

    2.15.2 рабочая наибольшая отключающая способность (service short-circuit breaking capacity): Отключающая способность, для которой согласно предписанным условиям в соответствии с установленным циклом испытаний предполагают способность данного выключателя длительно проводить свой номинальный ток.

    Источник: ГОСТ Р 50030.2-2010: Аппаратура распределения и управления низковольтная. Часть 2. Автоматические выключатели оригинал документа

    3.5.5.2 рабочая наибольшая отключающая способность (service short-circuit breaking capacity): Отключающая способность, для которой предписанные условия, соответствующие указанному циклу испытаний, предусматривают способность выключателя проводить в течение условного времени ток, равный 0,85 тока нерасцепления.

    Источник: ГОСТ Р 50345-2010: Аппаратура малогабаритная электрическая. Автоматические выключатели для защиты от сверхтоков бытового и аналогичного назначения. Часть 1. Автоматические выключатели для переменного тока оригинал документа

    Русско-английский словарь нормативно-технической терминологии > рабочая наибольшая отключающая способность

  • 79 недостаточный

    •

    Deficient air supply is indicated by...

    •

    Uranium resources appeared scarce in relation to the projected needs.

    •

    Deficient (or Poor) nutrition associated with fire diseases.

    •

    No qualitative interferences owing to a lack of solvent purity have been observed.

    Русско-английский научно-технический словарь переводчика > недостаточный

  • 80 bjerg

    sg - bjerget, pl - bjerge
    гора́ ж
    * * *
    Mount, mountain
    * * *
    (et -e) mountain,
    ( især mindre) hill;
    (fig) mountain ( fx butter mountain);
    [ troen kan flytte bjerge] faith can remove mountains;
    [ han er over alle bjerge] he is (over the hills and) far away;
    [ den herskende opfattelse på bjerget] the established view, the view of the establishment, the conventional wisdom;
    [ bjergene lavede til barsel (el. barslede) og fødte en mus] the mountain laboured and brought forth a mouse.

    Danish-English dictionary > bjerg

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