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  • 21 услуга безопасности

    1. security service

     

    услуга безопасности
    Услуга, предоставляемая каким-либо уровнем открытых систем связи, которая гарантирует достаточную защиту систем или процессов передачи данных. Рекомендация МСЭ-Т X.800.
    [ http://www.rfcmd.ru/glossword/1.8/index.php?a=index&d=4268]

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    Русско-английский словарь нормативно-технической терминологии > услуга безопасности

  • 22 pezzo

    m piece
    di motore part
    da/per un pezzo for a long time
    due pezzi bikini
    pezzo di ricambio spare (part)
    fig pezzo grosso big shot
    andare in pezzi break into pieces
    in pezzi da centomila lire in denominations of one hundred thousand lira
    * * *
    pezzo s.m.
    1 piece, bit; ( parte) part: un pezzo di pane, a piece (o bit) of bread; da quella finestra si vede un pezzo di mare, you can see a bit of the sea from that window; facemmo insieme un bel pezzo di strada, we went a good way together; abito in quella strada, un bel pezzo dopo il distributore, I live down that road, quite a way after the petrol pump; il primo pezzo di autostrada è a due corsie, the first stretch of motorway is two-lane; lesse un pezzo del suo discorso, he read part of his speech; un pezzo di terreno, a plot; un pezzo di sapone, a bar (o cake) of soap; un pezzo di carne, a piece (o bit) of meat: un pezzo vicino all'osso, a cut near the bone; un pezzo di carta, a piece of paper: i trattati sono solo pezzi di carta, treaties are just pieces of paper // a, in pezzi, in, to pieces; ( in mille pezzi) in smithereens: questo vecchio edificio cade a pezzi, this old building is falling to pieces; il vaso cadde e andò in pezzi, the vase fell and broke to pieces; è andato in mille pezzi, it was smashed into smithereens // essere in, a pezzi, to be in pieces: i suoi nervi erano a pezzi, his nerves were in shreds; alla fine della giornata sono a pezzi, I am whacked at the end of the day; fare a pezzi qlco., to break (o to pull) to pieces; ( squartare, dilaniare) to tear to pieces: la bambina ha fatto a pezzi la sua bambola nuova, the child has broken (o torn) her new doll to pieces // pezzo per pezzo, bit by bit: smontare qlco. pezzo per pezzo, to dismantle sthg. bit by bit // a pezzi e bocconi, ( a piccole parti) piecemeal: l'ho scritto a pezzi e bocconi, I wrote it piecemeal
    2 (esemplare, elemento singolo di un complesso) piece: i più bei pezzi della sua collezione, the finest pieces in his collection; un servizio da tè di venti pezzi, a tea service of twenty pieces; ha ammobiliato la sua casa con dei bellissimi pezzi dell'800, she has furnished her home with some very fine nineteenth-century pieces; un pezzo d'antiquariato, an antique; un pezzo da collezionista, a collector's piece; un pezzo da museo, a museum piece: la tua macchina da scrivere è un pezzo da museo, your typewriter is a museum piece; quell'insegnante è proprio un pezzo da museo, that teacher is a real old fogey; li vende a dieci euro il pezzo, he sells them at ten euros each (o a piece) // un pezzo grosso, a bigwig (o a big shot o a big noise); ( famoso) VIP; ( nell'esercito) brass hat (o top brass): un pezzo grosso dell'industria, a bigwig (o a big shot) in industry // un bel pezzo di donna, di uomo, a fine figure of a woman, man // che pezzo di stupido!, what an ass! (o what a fool!) // tutto d'un pezzo, all of a (o one) piece: uomo tutto d'un pezzo, (fig.) man of sterling character
    3 ( moneta) coin, piece; ( banconota) note: un pezzo da due euro, a two euro coin; un pezzo da cento euro, a one hundred euro note
    4 (mecc.) piece, part: pezzo di ricambio, spare part; pezzo fucinato, forging; pezzo fuso, casting; pezzo grezzo, blank; pezzo in lavorazione, workpiece; pezzo lavorato, machined part (o piece); pezzo stampato a caldo, drop forging; pezzo stampato a freddo, cold stamping; centrare il pezzo da lavorare, to centre a piece of work
    5 (mil.) piece, gun: pezzo da campagna, fieldpiece; pezzo di artiglieria, piece of ordnance (o artillery); una batteria di sei pezzi, a six-piece battery; caricare il pezzo, to load the gun
    6 ( musica) piece: suonava un pezzo di Rossini, he was playing a piece by Rossini // pezzo forte, strong point: i drammi di Shakespeare sono il suo pezzo forte, Shakespeare's tragedies are his strong point; la toccata e fuga in re minore è il suo pezzo forte, the toccata and fugue in D minor is his pièce de résistance
    7 ( articolo di giornale) newspaper article: ho letto il tuo pezzo sulla droga, I've read your piece on drugs
    8 ( di tempo) quite a long time, quite a while: non lo vedo da un pezzo, I haven't seen him for quite a long time; lo aspettai per un bel pezzo e poi me ne andai, I waited for him quite a while, then I went away; ci metteremo un ( bel) pezzo a finire questo lavoro, it will take us quite a (long) time to finish this job.
    * * *
    ['pɛttso]
    sostantivo maschile
    1) (parte, porzione) piece, bit

    un pezzo di pane — a piece o bit of bread

    un pezzo di carta — a piece o slip of paper

    un pezzo di terreno — a piece o plot o patch of land

    due -i di torta — two pieces o slices of cake

    un pezzo di ferro, legno — a piece of iron, wood

    un pezzo di sapone — a cake o bar of soap

    in -i — in pieces o bits

    a -i — (rotto) [ oggetto] in pieces; fig. [ persona] beat, dead tired

    tagliare qcs. a o in -i to chop sth. to pieces; rompere qcs. in (mille) -i to break sth. into (a thousand) pieces, to smash sth. to pieces o bits; cadere a o in -i to fall apart o to pieces; fare a -i (rompere) to break [sth.] into pieces [ oggetto]; fig. (criticare) to take o tear [sth.] apart [libro, film]; fare a -i qcn. — fig. to tear sb. to pieces

    4) (unità, elemento) piece, item

    venduto al pezzo — sold separately o individually

    5) art. mus. (opera, brano) piece; (di libro) passage
    6) giorn. piece, (newspaper) article
    7) (banconota) note; (moneta) piece

    è un pezzo che... — it's a long time that...

    •

    pezzo di bravura — mus. bravura passage

    pezzo di carta — colloq. (titolo di studio) = diploma, degree

    pezzo forte — pièce de résistance; (di collezione) centre-piece; teatr. speciality act BE, specialty number AE; mus. set piece

    pezzo grosso — big shot o noise, bigwig spreg.

    ••
    * * *
    pezzo
    /'pεttso/
    sostantivo m.
     1 (parte, porzione) piece, bit; un pezzo di pane a piece o bit of bread; un pezzo di carta a piece o slip of paper; un pezzo di terreno a piece o plot o patch of land; due -i di torta two pieces o slices of cake; un pezzo di ferro, legno a piece of iron, wood; un pezzo di sapone a cake o bar of soap; in -i in pieces o bits; ho visto un pezzo di spettacolo I saw part of the show; fare un pezzo di strada insieme to travel together for part of the way; è un bel pezzo di strada! it's quite a way! a -i (rotto) [ oggetto] in pieces; fig. [ persona] beat, dead tired; ho la schiena a -i my back is killing me; ho i nervi a -i my nerves are in shreads; tagliare qcs. a o in -i to chop sth. to pieces; rompere qcs. in (mille) -i to break sth. into (a thousand) pieces, to smash sth. to pieces o bits; cadere a o in -i to fall apart o to pieces; fare a -i (rompere) to break [sth.] into pieces [ oggetto]; fig. (criticare) to take o tear [sth.] apart [libro, film]; fare a -i qcn. fig. to tear sb. to pieces
     4 (unità, elemento) piece, item; un puzzle da 500 -i a 500-piece puzzle; (costume a) due -i two-piece swimsuit; venduto al pezzo sold separately o individually; costano 5 euro al pezzo they cost 5 euros apiece o a piece o each
     5 art. mus. (opera, brano) piece; (di libro) passage
     6 giorn. piece, (newspaper) article
     7 (banconota) note; (moneta) piece
     8 (periodo di tempo) è un pezzo che... it's a long time that...; non lo vedo da un (bel) pezzo I haven't seen him for quite a while
     9 colloq. (riferito a persona) un bel pezzo di ragazza a nice bit of stuff BE, a piece; un (bel) pezzo d'uomo a hunk; pezzo d'imbecille! you (stupid) idiot! che pezzo d'asino! what an ass o a fool!
    essere un pezzo di ghiaccio to be an iceberg; essere tutto d'un pezzo to have a sterling character
    \
    pezzo d'antiquariato antique; pezzo d'artiglieria piece of artillery; pezzo di bravura mus. bravura passage; pezzo di carta colloq. (titolo di studio) = diploma, degree; pezzo da collezione collector's item; pezzo da esposizione showpiece; pezzo forte pièce de résistance; (di collezione) centre-piece; teatr. speciality act BE, specialty number AE; mus. set piece; pezzo grosso big shot o noise, bigwig spreg.; pezzo da museo museum piece (anche scherz.); pezzo di ricambio spare part.

    Dizionario Italiano-Inglese > pezzo

  • 23 πρό

    A before, forth:
    A PREP. WITH GENIT.:
    I of Place, before, in front of,

    ἠγερέθοντο π. ἄστεος Od.24.468

    , cf. Il.15.351, etc.;

    π. πτόλιος δεδαϊγμένον 19.292

    ;

    κείνους κιχησόμεθα π. πυλάων 10.126

    , cf. 6.80, etc.;

    φύλοπις αἰνὴ ἕστηκε π. νεῶν 18.172

    ;

    πυρὰ φαίνετο Ἰλιόθι π. 8.561

    , cf. 10.12, Od.8.581, etc.;

    κλαγγὴ γεράνων πέλει οὐρανόθι π. Il.3.3

    ;

    π. τειχέων Pi.O.13.56

    ; ἔμπροσθε π. (v.l.)

    τῆς ἀκροπόλιος, ὄπισθε δὲ τῶν πυλέων Hdt.8.53

    , cf. 9.52; π. δόμων, π. δωμάτων, in front of, i.e. outside the house, Pi.P.2.18, 5.96, etc.;

    π. θυρῶν S.El. 109

     (anap.), etc.; τὴν π. τοῦ Ἡραίου νῆσον before or off the Heraeum, Th.3.75, cf. 7.22; π. ποδός, v. πούς 1.4a; π. χειρῶν at hand, S.Ant. 1279, E. Rh. 274, dub. in Tr. 1207;

    π. τῶν ὀφθαλμῶν προφαίνεσθαι Aeschin. 2.148

    .
    2 with Vbs. of motion,

    π. δ' ἄρ' αὐτῶν κύνες ἤϊσαν Od. 19.435

    , cf. Il.23.115;

    π. Ἀχαιῶν ἄγγελος ᾔει 10.286

    , cf. 13.693;

    π. ἕθεν κλονέοντα φάλαγγας 5.96

    .
    3 before, in front of, for the purpose of shielding or guarding,

    π. Τρώων ἑσταότ' Il.24.215

    : hence, in defence of,

    μάχεσθαι.. π. τε παίδων καὶ π. γυναικῶν 8.57

    , cf. 4.156, 373, Hdt.8.74, etc.; ὀλέσθαι π. πόληος, Lat. pro patria mori, Il.22.110;

    π. τῆς Σπάρτης ἀποθνῄσκειν Hdt.7.134

    , cf. 172,9.72, E.Alc.18, 645, etc.;

    π. τοῦ θανόντος.. ἔθεσθ' ἐπιστροφήν S.OT 134

    ;

    διακινδυνεῦσαι π. βασιλέως X.Cyr.8.8.4

    ; βουλεύεσθαι, πράττειν π. τινός, ib.1.6.42, 4.5.44, cf. Mem.2.4.7; π. τοξευμάτων as a defence against arrows, Id.An.7.8.18: hence also, for, on behalf of, instead of, ἀγρυπνῆσαι π. τινῶν ib.7.6.36, cf. Leg.Gort.1.43; of an advocate,

    π. τῶνδε φωνεῖν S.OT10

    , cf. OC 811; ὄτι δέ κ' αὐτὸς π. Ειαυτοῦ [ἀμάρτῃ] whatever offence he commits of his own volition, Kohler-Ziebarth Stadtrecht von Gortyn p.34.
    4 π. ὁδοῦ ἐγένοντο further on the road, i.e. forwards, onward, Il.4.382, cf. Ael.NA3.16,7.29 (v. φροῦδος): also to denote distance,

    π. πολλοῦ τῆς πόλεως D.H.9.35

    ;

    π. τριάκοντα σταδίων

     at a distance of

    30

     stades, Str.8.6.24.
    5 π. ἠοῦς, π. ἑσπέρης τοῦ βωμοῦ, eastwards, west wards of.., IG7.235.45 (Orop., iv B.C.).
    II of Time, before,

    π. γάμοιο Od.15.524

    ;

    ἠῶθι π. 5.469

    ; π. ὃ τοῦ ἐνόησεν one before the other, Il.10.224; more freq. in later writers,

    π. τῶν Τρωικῶν Th.1.3

    , cf. 1.1;

    π. τοῦ θανεῖν S.Ant. 883

    ;

    π. τοῦ θανάτου Pl.Phd. 57a

    ;

    π. τοῦ λοιμοῦ Id.Smp. 201d

    ;

    π. δείπνου X.Cyr. 5.5.39

    ; π. ἡμέρας ib.4.5.14; π. τοῦ χρῆσθαι before one uses it, Id.Mem.2.6.6; π. μοίρας τῆς ἐμῆς before my doom, A.Ag. 1266;

    π. τῆς εἱμαρμένης Antipho 1.21

    ;

    π. τοῦ καθήκοντος χρόνου Aeschin.3.126

    , cf. 124; π. πολλοῦ long before, Hdt.7.130, etc.; π. μικροῦ, π. ὀλίγου, Plu.Pomp.73, App.BC2.116;

    ὀλίγον π. τούτων Th.2.8

    ; τὸ π. τοῦ (v.l. τούτου) ib.15; π. τοῦ (sts. written προτοῦ) A.Ag. 1204, Hdt.1.122, 5.83, Ar.Th. 418, Pl.Smp. 173a;

    ὁ π. τοῦ χρόνος A.Eu. 462

    , Th.2.58, etc.; π. τοῦ ἤ, = πρὶν ἤ, IG7.2225.22 ([place name] Thisbe);

    οἱ π. ἡμῶν γενόμενοι Isoc.13.19

    ;

    οἱ π. ἐμοῦ Th.1.97

    .
    2 in later writers freq. with Numerals, π. τριάκοντα ἡμερῶν thirty days before, Ael.NA5.52;

    π. μιᾶς ἡμέρας Plu.Caes.63

    ;

    π. ἐνιαυτοῦ Id.2.147e

    ;

    π. δυεῖν ἡμερῶν ἢ ἐτελεύτα Id.Sull.37

    : freq. c. dupl. gen., π. δύο ἐτῶν τοῦ σεισμοῦ, π. δύο ὡρῶν τῆς ἐπιβολῆς, LXX Am.1.1, Dsc.1.64; π. ἓξ ἡμερῶν τοῦ πάσχα, π. μιᾶς ἡμέρας τῶν γενεθλίων, Ev.Jo.12.1, Plu. 2.717d;

    π. πολλοῦ τῆς ἑορτῆς Luc.Sat.14

    .
    b in rendering Roman dates, τῇ π. μιᾶς Νωνῶν Ὀκτωβρίων, = pridie Non. Oct., Plu.2.203a, etc.
    III in other relations:
    1 of Preference, before, rather than, κέρδος αἰνῆσαι π. δίκας to praise sleight before right, Pi.P.4.140, cf. Pl.R. 361e; πᾶν δὴ βουλόμενοι σφίσι εἶναι π. τῆς παρεούσης λύπης anything before, rather than, their actual trouble, Hdt.7.152 (so, in order to avoid,

    π. τοῦ δεινοτάτου D.54.19

    );

    πᾶν π. τοῦ δουλεῦσαι ἐπεξελθεῖν Th.5.100

    , cf.4.59; ἑλέσθαι, αἱρεῖσθαι, or κρῖναί τι π. τινός to choose one before another, Id.5.36, Pl.R. 366b, Phlb. 57e; π. πολλοῦ ποιήσασθαι to esteem above much, i.e. very highly, Isoc.5.138;

    π. πολλῶν χρημάτων τιμήσασθαί τι Th.1.33

    , cf.6.10; π. ἄλλων more than others, Pl.Mx. 249e (v.l.), cf. A. Th. 1002; δυσδαίμων.. π. πασᾶν γυναικῶν ib. 927 (codd., lyr.);

    π. πάντων θεῶν τῇ Ἑστίᾳ πρώτῃ προθύειν Pl.Cra. 401d

    : after a [comp] Comp. it is redundant,

    ἡ τυραννὶς π. ἐλευθερίης ἀσπαστότερον Hdt.1.62

    , cf.6.12, Pl.Ap. 28d, Cri. 54b, Phd. 99a; for ἤ after

    ἄλλος, οὐδεὶς ἄλλος π. σεῦ Hdt.3.85

    , cf.7.3.
    2 of Cause or Motive, for, from, π. φόβοιο for fear, Il.17.667; ἀθλεύων π. ἄνακτος toiling before the face of, i.e. in his service, 24.734; π. τῶνδε there fore, S.El. 495 (lyr.).
    B POSITION: words may be put between π. and its case, Il.23.115; but it does not follow its case, exc. after [dialect] Ep. forms in -θι, Ἰλιόθι πρό, οὐρανόθι πρό, ἠῶθι πρό (v. supr.).
    C πρό, abs. as ADV.:
    I of Place, before, opp. ἐπί ( after), Il. 13.799, 800; before, in front, 15.360; forth, forward,

    ἐκ δ' ἄγαγε π. φόωσδε 19.118

    ; χωρεῖν π. δόμων to come forth from, S.Tr. 960 (lyr.);

    ἄγειν τινὰ π. δόμων E.Hec.59

     (anap.); γῆν π. γῆς ἐλαύνομαι I am driven on from one land to another, A.Pr. 682;

    διώκειν γῆν π. γῆς Ar.Ach. 235

    .
    II of Time, before,

    πρό οἱ εἴπομεν Od.1.37

    ; earlier,

    τά τ' ἐσσόμενα π. τ' ἐόντα Hes. Th.32

    ,38.
    III when joined with other Preps., ἀποπρό, διαπρό, ἐπιπρό, περιπρό, προπρό, it strengthens the first Prep., or adds to it the notion of forward, forth.
    I with Substs., to denote
    1 position before or in front, πρόδομος, προάστιον, πρόθυρον, προπύλαια, etc.
    2 priority of rank, πρόεδρος, προεδρία, etc.: also priority of order, προάγων, πρόλογος, προοίμιον, προπάτωρ, etc.
    3 standing in another's place, πρόμαντις, πρόξενος.
    II with Adjs., to denote
    1 proximity, πρόχειρος; and readiness, πρόθυμος, πρόφρων.
    2 away (cf. 111.3 infr.), προθέλυμνος, πρόρριζος.
    3 prematureness, πρόμοιρος, πρόωρος.
    4 intensity, πρόπας, πρόπαρ, προπάροιθε; so also πρόκακος, πρόπαλαι.
    III with Verbs,
    1 of Place, before, forwards, προβαίνω, προβάλλω, προτίθημι, etc.: also, before, in defence, προκινδυνεύω, προμάχομαι, etc.
    2 forth, προέλκω, προφέρω.
    b publicly, προγράφω, προειπεῖν, πρόκειμαι.
    3 away, προδίδωμι, προϊάλλω, προϊάπτω, προΐημι, προλείπω, προρέω, προτέμνω, προτρέπομαι, προφεύγω, προχέω.
    4 in preference, προαιροῦμαι, προτιμάω, etc.
    5 before, beforehand, προαισθάνομαι, προγίγνομαι, προκαταλαμβάνω, etc.; of foresight, προνοέω, προοράω.
    E Etymology: cf. Lat. προ?πρόX-, Slav. pro-, Skt. pra-, etc., in compounds.

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

  • 24 Buckle, William

    [br]
    b. 29 July 1794 Alnwick, Northumberland, England
    d. 30 September 1863 London, England
    [br]
    English mechanical engineer who introduced the first large screw-cutting lathe to Boulton, Watt \& Co.
    [br]
    William Buckle was the son of Thomas Buckle (1759–1849), a millwright who later assisted the 9th Earl of Dundonald (1749–1831) in his various inventions, principally machines for the manufacture of rope. Soon after the birth of William, the family moved from Alnwick to Hull, Yorkshire, where he received his education. The family again moved c.1808 to London, and William was apprenticed to Messrs Woolf \& Edwards, millwrights and engineers of Lambeth. During his apprenticeship he attended evening classes at a mechanical drawing school in Finsbury, which was then the only place of its kind in London.
    After completing his apprenticeship, he was sent by Messrs Humphrys to Memel in Prussia to establish steamboats on the rivers and lakes there under the patronage of the Prince of Hardenburg. After about four years he returned to Britain and was employed by Boulton, Watt \& Co. to install the engines in the first steam mail packet for the service between Dublin and Holyhead. He was responsible for the engines of the steamship Lightning when it was used on the visit of George IV to Ireland.
    About 1824 Buckle was engaged by Boulton, Watt \& Co. as Manager of the Soho Foundry, where he is credited with introducing the first large screw-cutting lathe. At Soho about 700 or 800 men were employed on a wide variety of engineering manufacture, including coining machinery for mints in many parts of the world, with some in 1826 for the Mint at the Soho Manufactory. In 1851, following the recommendations of a Royal Commission, the Royal Mint in London was reorganized and Buckle was asked to take the post of Assistant Coiner, the senior executive officer under the Deputy Master. This he accepted, retaining the post until the end of his life.
    At Soho, Buckle helped to establish a literary and scientific institution to provide evening classes for the apprentices and took part in the teaching. He was an original member of the Institution of Mechanical Engineers, which was founded in Birmingham in January 1847, and a member of their Council from then until 1855. He contributed a number of papers in the early years, including a memoir of William Murdock whom he had known at Soho; he resigned from the Institution in 1856 after his move to London. He was an honorary member of the London Association of Foreman Engineers.
    [br]
    Bibliography
    1850, "Inventions and life of William Murdock", Proceedings of the Institution of Mechanical Engineers 2 (October): 16–26.
    RTS

    Biographical history of technology > Buckle, William

  • 25 Chapelon, André

    [br]
    b. 26 October 1892 Saint-Paul-en-Cornillon, Loire, France
    d. 29 June 1978 Paris, France
    [br]
    French locomotive engineer who developed high-performance steam locomotives.
    [br]
    Chapelon's technical education at the Ecole Centrale des Arts et Manufactures, Paris, was interrupted by extended military service during the First World War. From experience of observing artillery from the basket of a captive balloon, he developed a method of artillery fire control which was more accurate than that in use and which was adopted by the French army.
    In 1925 he joined the motive-power and rolling-stock department of the Paris-Orléans Railway under Chief Mechanical Engineer Maurice Lacoin and was given the task of improving the performance of its main-line 4–6–2 locomotives, most of them compounds. He had already made an intensive study of steam locomotive design and in 1926 introduced his Kylchap exhaust system, based in part on the earlier work of the Finnish engineer Kyläla. Chapelon improved the entrainment of the hot gases in the smokebox by the exhaust steam and so minimized back pressure in the cylinders, increasing the power of a locomotive substantially. He also greatly increased the cross-sectional area of steam passages, used poppet valves instead of piston valves and increased superheating of steam. PO (Paris-Orléans) 4–6–2s rebuilt on these principles from 1929 onwards proved able to haul 800-ton trains, in place of the previous 500-ton trains, and to do so to accelerated schedules with reduced coal consumption. Commencing in 1932, some were converted, at the time of rebuilding, into 4–8–0s to increase adhesive weight for hauling heavy trains over the steeply graded Paris-Toulouse line.
    Chapelon's principles were quickly adopted on other French railways and elsewhere.
    H.N. Gresley was particularly influenced by them. After formation of the French National Railways (SNCF) in 1938, Chapelon produced in 1941 a prototype rebuilt PO 2–10–0 freight locomotive as a six-cylinder compound, with four low-pressure cylinders to maximize expansive use of steam and with all cylinders steam-jacketed to minimize heat loss by condensation and radiation. War conditions delayed extended testing until 1948–52. Meanwhile Chapelon had, by rebuilding, produced in 1946 a high-powered, three-cylinder, compound 4–8–4 intended as a stage in development of a proposed range of powerful and thermally efficient steam locomotives for the postwar SNCF: a high-speed 4–6–4 in this range was to run at sustained speeds of 125 mph (200 km/h). However, plans for improved steam locomotives were then overtaken in France by electriflcation and dieselization, though the performance of the 4–8–4, which produced 4,000 hp (3,000 kW) at the drawbar for the first time in Europe, prompted modification of electric locomotives, already on order, to increase their power.
    Chapelon retired from the SNCF in 1953, but continued to act as a consultant. His principles were incorporated into steam locomotives built in France for export to South America, and even after the energy crisis of 1973 he was consulted on projects to build improved, high-powered steam locomotives for countries with reserves of cheap coal. The eventual fall in oil prices brought these to an end.
    [br]
    Bibliography
    1938, La Locomotive à vapeur, Paris: J.B.Bailière (a comprehensive summary of contemporary knowledge of every function of the locomotive).
    Further Reading
    H.C.B.Rogers, 1972, Chapelon, Genius of French Steam, Shepperton: Ian Allan.
    1986, "André Chapelon, locomotive engineer: a survey of his work", Transactions of the Newcomen Society 58 (a symposium on Chapelon's work).
    Obituary, 1978, Railway Engineer (September/October) (makes reference to the technical significance of Chapelon's work).
    PJGR

    Biographical history of technology > Chapelon, André

  • 26 Leeuwenhoek, Antoni van

    [br]
    b. 24 October 1632 Delft, Netherlands
    d. 1723 Delft, Netherlands
    [br]
    Dutch pioneer of microscopy.
    [br]
    He was the son of a basketmaker, Philip Tonisz Leeuwenhoek, and Grietje Jacobsdr van den Berch, a brewer's daughter. After the death of his father in 1637, his mother married the painter Jacob Jansz Molijn. He went to school at Warmond and, later to an uncle who was Sheriff of Benthuizen. In 1648 he went to Amsterdam, where he was placed in a linen-draper's shop owned by William Davidson, a Scottish merchant. In 1652 or 1653 he moved back to Delft, where in 1654 he married the daughter of a cloth-merchant, Barbara de Mey. They had five children, only one of whom survived (born 22 September 1656). At about this time he bought a house and shop in the Hippolytus buurt and set up in business as a draper and haberdasher. His wife died in 1666 and in 1671 he married Cornelia Swalmius, a Reformed Church minister's daughter. Lacking self-confidence and not knowing Latin, the scientific language of the day, he was reluctant to publish the results of his investigations into a multitude of natural objects. His observations were made with single-lens microscopes made by himself. (He made at least 387 microscopes with magnifications of between 30x and 266x.) Among the subjects he studied were the optic nerve of a cow, textile fibres, plant seeds, a spark from a tinderbox, the anatomy of mites and insects' blood corpuscles, semen and spermatozoa. It was the physician Reinier de Graaf who put him in touch with the Royal Society in London, with whom he corresponded for fifty years from 1673. One of his last letters, in 1723, to the Royal Society was about the histology of the rare disease of the diaphragm that he had studied in sheep and oxen and from which he died. In public service he was a chamberlain to the sheriffs of Delft, a surveyor and a wine-gauger, offices which together gave him an income of about 800 florins a year. Leeuwenhoek never wrote a book, but collections were published in Latin and in Dutch from his scientific letters, which numbered more than 250.
    [br]
    Principal Honours and Distinctions
    FRS 1680.
    Further Reading
    L.C.Palm and H.A.M.Snelders, Antoni van Leeuwenhoek 1632–1723: Studies in the Life and Work of the Delft Scientist, Commemorating the 350th Anniversary of his Birthday.
    B.Bracegirdle (ed.), Beads of Glass: Leeuwenhoek and the Early Microscope. (Catalogue of an exhibition in the Museum Boerhaave, November 1982 to May 1983, and in the Science Museum, May to October 1983).
    IMcN

    Biographical history of technology > Leeuwenhoek, Antoni van

  • 27 Vignoles, Charles Blacker

    [br]
    b. 31 May 1793 Woodbrook, Co. Wexford, Ireland
    d. 17 November 1875 Hythe, Hampshire, England
    [br]
    English surveyor and civil engineer, pioneer of railways.
    [br]
    Vignoles, who was of Huguenot descent, was orphaned in infancy and brought up in the family of his grandfather, Dr Charles Hutton FRS, Professor of Mathematics at the Royal Military Academy, Woolwich. After service in the Army he travelled to America, arriving in South Carolina in 1817. He was appointed Assistant to the state's Civil Engineer and surveyed much of South Carolina and subsequently Florida. After his return to England in 1823 he established himself as a civil engineer in London, and obtained work from the brothers George and John Rennie.
    In 1825 the promoters of the Liverpool \& Manchester Railway (L \& MR) lost their application for an Act of Parliament, discharged their engineer George Stephenson and appointed the Rennie brothers in his place. They in turn employed Vignoles to resurvey the railway, taking a route that would minimize objections. With Vignoles's route, the company obtained its Act in 1826 and appointed Vignoles to supervise the start of construction. After Stephenson was reappointed Chief Engineer, however, he and Vignoles proved incompatible, with the result that Vignoles left the L \& MR early in 1827.
    Nevertheless, Vignoles did not sever all connection with the L \& MR. He supported John Braithwaite and John Ericsson in the construction of the locomotive Novelty and was present when it competed in the Rainhill Trials in 1829. He attended the opening of the L \& MR in 1830 and was appointed Engineer to two railways which connected with it, the St Helens \& Runcorn Gap and the Wigan Branch (later extended to Preston as the North Union); he supervised the construction of these.
    After the death of the Engineer to the Dublin \& Kingstown Railway, Vignoles supervised construction: the railway, the first in Ireland, was opened in 1834. He was subsequently employed in surveying and constructing many railways in the British Isles and on the European continent; these included the Eastern Counties, the Midland Counties, the Sheffield, Ashton-under-Lyme \& Manchester (which proved for him a financial disaster from which he took many years to recover), and the Waterford \& Limerick. He probably discussed rail of flat-bottom section with R.L. Stevens during the winter of 1830–1 and brought it into use in the UK for the first time in 1836 on the London \& Croydon Railway: subsequently rail of this section became known as "Vignoles rail". He considered that a broader gauge than 4 ft 8½ in. (1.44 m) was desirable for railways, although most of those he built were to this gauge so that they might connect with others. He supported the atmospheric system of propulsion during the 1840s and was instrumental in its early installation on the Dublin \& Kingstown Railway's Dalkey extension. Between 1847 and 1853 he designed and built the noted multi-span suspension bridge at Kiev, Russia, over the River Dnieper, which is more than half a mile (800 m) wide at that point.
    Between 1857 and 1863 he surveyed and then supervised the construction of the 155- mile (250 km) Tudela \& Bilbao Railway, which crosses the Cantabrian Pyrenees at an altitude of 2,163 ft (659 m) above sea level. Vignoles outlived his most famous contemporaries to become the grand old man of his profession.
    [br]
    Principal Honours and Distinctions
    Fellow of the Royal Astronomical Society 1829. FRS 1855. President, Institution of Civil Engineers 1869–70.
    Bibliography
    1830, jointly with John Ericsson, British patent no. 5,995 (a device to increase the capability of steam locomotives on grades, in which rollers gripped a third rail).
    1823, Observations upon the Floridas, New York: Bliss \& White.
    1870, Address on His Election as President of the Institution of Civil Engineers.
    Further Reading
    K.H.Vignoles, 1982, Charles Blacker Vignoles: Romantic Engineer, Cambridge: Cambridge University Press (good modern biography by his great-grandson).
    PJGR

    Biographical history of technology > Vignoles, Charles Blacker

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