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  • 1 секция дивизионного инженера

    Универсальный русско-английский словарь > секция дивизионного инженера

  • 2 главный инженер (админ.-хоз. деятельность в спорте)

    1. chief engineer

     

    главный инженер
    Руководитель инженерного подразделения ФНД «Административно-хозяйственная деятельность».
    [Департамент лингвистических услуг Оргкомитета «Сочи 2014». Глоссарий терминов]

    EN

    chief engineer
    Head of the Engineering Section of the Administration and Office Management FA.
    [Департамент лингвистических услуг Оргкомитета «Сочи 2014». Глоссарий терминов]

    Тематики

    EN

    Русско-английский словарь нормативно-технической терминологии > главный инженер (админ.-хоз. деятельность в спорте)

  • 3 chef

    chef [∫εf]
    1. masculine noun, feminine noun
       a. ( = patron) boss ; [de tribu] chief(tain)
    • faire le or jouer au petit chef to throw one's weight around
       b. [d'expédition, révolte, syndicat] leader
       d. ( = cuisinier) chef
    2. invariable adjective
    • gardien/médecin chef chief warden/consultant
    ► chef de classe ≈ class prefect (Brit) or president (US)
    ► chef de famille head of the family ; (Administration) householder
    ► chef de plateau (Cinema, TV) floor manager
    ► chef de service departmental head ; ( = médecin) ≈ consultant
    * * *

    I ʃɛf
    nom masculin
    1) ( meneur) leader
    2) ( supérieur) superior, boss (colloq); Armée ( sergent) sergeant
    3) ( dirigeant) gén head; Commerce ( d'un service) manager

    commandant en chef — Armée commander-in-chief

    chef (cuisinier or de cuisine) — chef

    5) (colloq) (as, champion) ace
    6) (dated) ( tête) head

    de mon/leur (propre) chef — on my/their own initiative

    7) ( chapitre)

    au premier chef — primarily, first and foremost

    •
    Phrasal Verbs:

    II ʃɛf
    nom féminin boss (colloq)
    * * *
    ʃɛf
    1. nmf
    1) [groupe] leader, [tribu] chief

    en chef; général en chef — general-in-chief

    2) [service] head

    Le nouveau chef du service comptable est un Écossais. — The new head of the accounts department is Scottish.

    3) (= supérieur hiérarchique) boss

    Je dois demander la permission à mon chef. — I have to get permission from my boss.

    4) [cuisine] chef
    2. nm
    1)

    au premier chef (= avant tout) [concerner, viser] — primarily

    2) (= de sa propre initiative)
    3) humoristique, lit (= tête)
    * * *
    A nm
    1 ( meneur) leader; le chef du parti the party leader; le chef de l'école cubiste the leader of the Cubist school; chef de l'opposition leader of the opposition; chef de bande gang leader; avoir des qualités de chef to have leadership qualities; avoir une âme or un tempérament de chef to be a born leader;
    2 ( supérieur) superior, boss○; Mil ( sergent) sergeant; votre chef en sera informé your superior will be informed; mon chef my boss○; salut, chef○! hi, boss○!;
    3 (patron, dirigeant) gén head; Comm ( d'un service) manager; chef de l'Église/de l'exécutif head of the Church/of the executive branch of government; l'exemple doit venir des chefs the example must come from the top; architecte en chef chief architect; commandant en chef Mil commander-in-chief; ⇒ petit;
    5 ○(as, champion) ace; se débrouiller comme un chef to manage splendidly;
    6 †( tête) head; de mon/leur (propre) chef on my/their own initiative, off my/their own bat○ GB;
    7 ( chapitre) heading; sous ce chef under this heading; au premier chef, leur négligence primarily ou first and foremost, their negligence; il importe, au premier chef, de rétablir l'ordre primarily, we must restore order.
    B ○nf boss○; à la maison, c'est elle la chef at home, she's the boss○.
    chef d'accusation Jur count of indictment; répondre à un chef d'accusation to answer a charge; chef d'atelier (shop) foreman; chef de bataillon major; chef de bureau chief clerk; chef de cabinet principal private secretary; chef de chantier works GB ou site foreman; chef de chœur choirmaster; chef de clan chieftain; chef de classe ≈ class prefect ou monitor GB, class president US; chef de clinique Méd ≈ senior registrar GB; chef de département head of department; chef d'entreprise head of a company; chef d'équipe Entr foreman; Sport team captain; chef d'escadron cavalry major; chef d'établissement head teacher; chef d'État head of state; chef d'état-major Chief of Staff; chef de fabrication production manager; chef de famille head of the family ou household; chef de file gén leader; Pol party leader; Fin ( de consortium) lead bank; Naut lead ship; chef de gare stationmaster; chef de gouvernement head of government; chef indien Indian chief; chef mécanicien engine driver GB, (locomotive) engineer US; chef de musique bandmaster; chef de nage stroke; chef d'orchestre conductor; chef de patrouille patrol leader; chef du personnel personnel manager; chef de plateau Cin, TV floor manager; chef de produit Comm product manager; chef de projet Entr project manager; chef de publicité ( d'agence) account executive; ( annonceur) advertising manager; ( dans les médias) advertising (sales) manager; chef de rang chef de rang; chef de rayon Comm department supervisor ou manager; chef de région area ou regional manager; chef de réseau ( espionnage) leader of a spy ring; ( Résistance) leader of a cell (in the Resistance movement); chef de service Admin section ou department head; Méd clinical director GB, chief physician US; chef de train guard GB, conductor US; chef de tribu headman; chef des ventes sales manager; chef de village village headman.
    [ʃɛf] nom masculin
    1. [responsable - généralement] head ; [ - d'une entreprise] manager, boss
    chef du personnel personnel ou staff manager
    3. RAIL
    7. [leader] leader
    a. (péjoratif) [dans une famille] domestic tyrant
    b. [au bureau, à l'usine] slave driver
    8. (comme adjectif) head (modificateur), chief (modificateur)
    médecin-chef ≃ senior consultant
    9. (humoristique) [tête] head
    10. DROIT
    chef d'accusation charge ou count (of indictment)
    ————————
    [ʃɛf] nom féminin
    [responsable]
    ————————
    au premier chef locution adverbiale
    de mon propre chef locution adverbiale,
    de son propre chef etc. locution adverbiale
    on my/his etc. own authority ou initiative
    ————————
    en chef locution adjectivale
    chef d'orchestre nom masculin
    2. (figuré) [organisateur] organizer, orchestrator

    Dictionnaire Français-Anglais > chef

  • 4 jefe

    adj.
    chief, top.
    m.
    1 boss, principal, chief, manager.
    2 chief, chieftain, leader, ringleader.
    3 boss, woman in charge, headwoman, top woman.
    4 boss.
    * * *
    ► nombre masculino,nombre femenino
    1 boss, head, chief
    2 COMERCIO (hombre) manager; (mujer) manageress
    3 PLÍTICA leader
    4 MILITAR officer in command
    ► interjección ¡jefe!
    1 familiar waiter!
    1 familiar the old lady, the wife
    \
    jefe de estación station master
    jefe de Estado Head of State
    jefe de Estado Mayor Chief of Staff
    jefe de redacción editor in chief
    jefe de ventas sales manager
    jefe supremo commander-in-chief
    * * *
    (f. - jefa)
    noun
    1) boss
    2) head
    * * *
    jefe, -a
    SM / F
    1) (=superior) boss; (=director) head; (Pol) leader; (Com) manager; (Mil) officer in command; [de tribu] chief

    ¿quién es el jefe aquí? — who's in charge around here?

    jefe/a civil — Caribe registrar

    jefe/a de almacén — warehouse manager/manageress

    jefe/a de bomberos — fire chief, chief fire officer

    jefe/a de cabina — (Aer) chief steward/stewardess

    jefe/a de camareros — head waiter/waitress

    jefe/a de cocina — head chef

    jefe/a de equipo — team leader

    jefe/a de estación — station master, station manager

    jefe/a de estado — head of state

    jefe/a de estado mayor — chief of staff

    jefe/a de estudios — (Escol) director of studies

    jefe/a de filas — (Pol) party leader

    jefe/a de máquinas — (Náut) chief engineer

    jefe/a de márketing — marketing manager

    jefe/a de obras — site manager

    jefe/a de oficina — office manager/manageress

    jefe/a de personal — personnel manager

    jefe/a de pista — ringmaster

    jefe/a de plató — (Cine, TV) floor manager

    jefe/a de producción — production manager

    jefe/a de protocolo — chief of protocol

    jefe/a de realización — (Cine, TV) production manager

    jefe/a de redacción — editor-in-chief

    jefe/a de sala — head waiter/waitress

    jefe/a de taller — foreman

    jefe/a de tren — guard, conductor (EEUU)

    jefe/a de ventas — sales manager

    jefe/a ejecutivo/a — chief executive

    jefe/a supremo/a — commander-in-chief

    2) [como apelativo]

    ¡oiga jefe! — hey!, mate! *

    sí, mi jefe — esp LAm yes, sir o boss

    * * *
    - fa masculino, femenino, jefe masculino y femenino
    a) ( superior) boss
    b) ( de empresa) manager; ( de sección) head; ( de tribu) chief
    c) (Pol) leader
    d) ( como apelativo) buddy (AmE colloq), mate (BrE colloq)
    e) jefes masculino plural (fam) ( padres) folks (pl) (colloq)
    * * *
    = boss [bosses, -pl.], chief, employer, chief honcho, top official, top position, head honcho, honcho, gaffer, leader.
    Ex. The dependence on bosses for recognition, rewards, and advancement breeds an artificiality of relationship, a need to be polite and agreeable.
    Ex. He subsequently served as chief of that Division, chief of the Serial Record Division, Assistant Director for Cataloging of the Processing Department, Director of the Processing Department, and Assistant Librarian of Processing Services.
    Ex. But we have an obligation to these students, to their future employers and colleagues, to society in general and to ourselves to ensure that our 'processing' makes an important difference.
    Ex. 'We should be more sympathetic and persuasive with the chief honchos'.
    Ex. Some who felt that many of the top officials in libraries and professional organizations were men.
    Ex. In spite of the preponderance of women in the profession 44 of 61 top positions are held by men.
    Ex. Only 17 percent of head honchos say research and development (R&D) drives innovation in their business, a new study has found.
    Ex. Of course, no one but a few honchos at IBM and Oracle know the real answer.
    Ex. Watford gaffer believes his team's home games hold the key to their ability to survive in the Premiership.
    Ex. The proud mother, as a result, had been a leader in the fight to establish a program for the 'gifted and talented' in the public school system.
    ----
    * ¡cómo se nota que no está el jefe! = while the cat's away, the mice will play.
    * editor jefe = editor-in-chief.
    * jefa de oficina de correos = postmistress.
    * jefe de cocina = chef.
    * jefe de escuadrón = squadron leader.
    * jefe de espías = spymaster.
    * jefe de estado = head of state, chief of state.
    * jefe de facturación = billing clerk.
    * jefe de la tribu = tribal chief.
    * jefe del estado mayor = Chief of Staff.
    * jefe de los servicios de gestión del conocimiento = chief knowledge officer (CKO).
    * jefe de los servicios de información = chief information officer (CIO).
    * jefe del servicio de catalogación = cataloguing head.
    * jefe del servicio de referencia = reference head.
    * jefe de milicia = warlord.
    * jefe de oficina = office manager.
    * jefe de oficina de correos = postmaster.
    * jefe de personal = personnel officer, welfare officer, staff manager.
    * jefe de personal de la biblioteca = library personnel officer.
    * jefe de policía = chief constable, police chief.
    * jefe de prensa = press officer.
    * jefe de recursos humanos = human resource manager.
    * jefe de sección = section head.
    * jefe de taller = overseer.
    * jefe militar = army official, army officer.
    * muchos jefes y pocos trabajadores = too many chiefs and not enough Indians.
    * ser el jefe = be in charge, call + the shots, be the boss, call + the tune, rule + the roost.
    * * *
    - fa masculino, femenino, jefe masculino y femenino
    a) ( superior) boss
    b) ( de empresa) manager; ( de sección) head; ( de tribu) chief
    c) (Pol) leader
    d) ( como apelativo) buddy (AmE colloq), mate (BrE colloq)
    e) jefes masculino plural (fam) ( padres) folks (pl) (colloq)
    * * *
    = boss [bosses, -pl.], chief, employer, chief honcho, top official, top position, head honcho, honcho, gaffer, leader.

    Ex: The dependence on bosses for recognition, rewards, and advancement breeds an artificiality of relationship, a need to be polite and agreeable.

    Ex: He subsequently served as chief of that Division, chief of the Serial Record Division, Assistant Director for Cataloging of the Processing Department, Director of the Processing Department, and Assistant Librarian of Processing Services.
    Ex: But we have an obligation to these students, to their future employers and colleagues, to society in general and to ourselves to ensure that our 'processing' makes an important difference.
    Ex: 'We should be more sympathetic and persuasive with the chief honchos'.
    Ex: Some who felt that many of the top officials in libraries and professional organizations were men.
    Ex: In spite of the preponderance of women in the profession 44 of 61 top positions are held by men.
    Ex: Only 17 percent of head honchos say research and development (R&D) drives innovation in their business, a new study has found.
    Ex: Of course, no one but a few honchos at IBM and Oracle know the real answer.
    Ex: Watford gaffer believes his team's home games hold the key to their ability to survive in the Premiership.
    Ex: The proud mother, as a result, had been a leader in the fight to establish a program for the 'gifted and talented' in the public school system.
    * ¡cómo se nota que no está el jefe! = while the cat's away, the mice will play.
    * editor jefe = editor-in-chief.
    * jefa de oficina de correos = postmistress.
    * jefe de cocina = chef.
    * jefe de escuadrón = squadron leader.
    * jefe de espías = spymaster.
    * jefe de estado = head of state, chief of state.
    * jefe de facturación = billing clerk.
    * jefe de la tribu = tribal chief.
    * jefe del estado mayor = Chief of Staff.
    * jefe de los servicios de gestión del conocimiento = chief knowledge officer (CKO).
    * jefe de los servicios de información = chief information officer (CIO).
    * jefe del servicio de catalogación = cataloguing head.
    * jefe del servicio de referencia = reference head.
    * jefe de milicia = warlord.
    * jefe de oficina = office manager.
    * jefe de oficina de correos = postmaster.
    * jefe de personal = personnel officer, welfare officer, staff manager.
    * jefe de personal de la biblioteca = library personnel officer.
    * jefe de policía = chief constable, police chief.
    * jefe de prensa = press officer.
    * jefe de recursos humanos = human resource manager.
    * jefe de sección = section head.
    * jefe de taller = overseer.
    * jefe militar = army official, army officer.
    * muchos jefes y pocos trabajadores = too many chiefs and not enough Indians.
    * ser el jefe = be in charge, call + the shots, be the boss, call + the tune, rule + the roost.

    * * *
    jefe -fa
    masculine, feminine
    1 (superior) boss
    aquí el jefe soy yo I'm the boss here, I'm in charge here
    2 (de una sección, un departamento) head
    4 (de un partido, una banda) leader
    5 (como apelativo) buddy ( AmE colloq), mate ( BrE colloq), guv ( BrE colloq dated)
    6 jefes mpl ( fam) (padres) folks (pl) ( colloq), parents (pl)
    Compuestos:
    ● jefe/jefa de bomberos
    fire chief
    ● jefe/jefa de cocina
    chef
    ● jefe/jefa de departamento
    head of department
    ● jefe/jefa de estación
    stationmaster
    ● jefe/jefa de Estado
    head of state
    ● jefe/jefa de Estado Mayor
    Chief of Staff
    ● jefe/jefa de estudios
    director of studies
    ● jefe/jefa de filas
    group leader
    ● jefe/jefa de gobierno
    (primer ministro) prime minister; (presidente) president
    ● jefe/jefa de la guerrilla
    guerrilla leader
    ● jefe/jefa de la oposición
    leader of the opposition
    ● jefe/jefa de la policía
    chief of police
    ● jefe/jefa de los espías
    spymaster
    ● jefe/jefa de máquinas
    chief engineer
    ● jefe/jefa de negociado
    head of section, head of department
    ● jefe/jefa de oficina
    chief clerk, office manager
    ● jefe/jefa de personal
    personnel manager
    ● jefe/jefa de planta
    floor manager
    ● jefe/jefa de producción
    production manager
    ● jefe/jefa de producto
    product manager
    ● jefe/jefa de redacción
    editor-in-chief
    ● jefe/jefa de sección
    section head
    ● jefe/jefa de seguridad
    chief of security
    ● jefe/jefa de taller
    supervisor, foreman
    ● jefe/jefa de tren
    head conductor, train manager ( BrE)
    ● jefe/jefa de ventas
    sales manager
    * * *

     

    jefe
    ◊ -fa sustantivo masculino, femenino, jefe sustantivo masculino y femenino

    a) ( superior) boss;


    jefe de personal/ventas personnel/sales manager;
    jefe de redacción editor-in-chief

    ( de sección) head;
    ( de tribu) chief
    c) (Pol) leader;

    ◊ jefe de Estado/gobierno head of state/government

    jefe,-a sustantivo masculino y femenino
    1 boss
    Com manager
    jefe de estación, station master
    jefe de informativos, news editor
    jefe de personal, personnel manager
    jefe de redacción, editor-in-chief
    jefe de ventas, sales manager
    2 (líder) leader: es el jefe de la tribu, he's the chief of the tribe
    jefe de Estado, Head of State
    3 Mil comandante en jefe, commander-in-chief
    ' jefe' also found in these entries:
    Spanish:
    arder
    - bailar
    - bebida
    - cabestro
    - congraciarse
    - definitivamente
    - encima
    - faltar
    - gastar
    - gusano
    - jefa
    - mondarse
    - patrón
    - patrona
    - patrono
    - quemada
    - quemado
    - redactor
    - redactora
    - sapo
    - sheriff
    - tal
    - trinar
    - abajo
    - canciller
    - citar
    - comandante
    - condición
    - enfermero
    - facultar
    - mandar
    - pensar
    - plantear
    - quedar
    - rabiar
    - robar
    - salir
    - ver
    English:
    absence
    - abuse
    - anybody
    - approachable
    - around
    - ask for
    - bluster
    - boss
    - busywork
    - by
    - by-product
    - chancellor
    - chief
    - chieftain
    - clear
    - comeback
    - cow
    - deal with
    - departmental
    - deputy
    - discount
    - doormat
    - edit
    - even
    - expect
    - forceful
    - foreman
    - forge
    - frustrated
    - grievance
    - guard
    - head
    - higher-up
    - imagine
    - in
    - initially
    - leader
    - manager
    - marshal
    - mate
    - of
    - pass over
    - pat
    - pool
    - postmaster
    - promise
    - Secretary of State
    - sister
    - staff nurse
    - take over
    * * *
    jefe, -a nm,f
    1. [persona al mando] boss;
    [de empresa] manager, f manageress; [líder] leader; [de tribu, ejército] chief; [de departamento] head; Mil
    en jefe in-chief;
    Méx Fam
    como jefe: entró a la oficina como jefe he walked into the office as if he owned the place
    jefe de bomberos fire chief;
    jefe de compras purchasing manager;
    jefe de estación stationmaster;
    jefe de Estado head of state;
    jefe del estado mayor chief of staff;
    jefe de estudios director of studies;
    Dep jefe de fila(s) team leader [driver or cyclist];
    jefe de gabinete chief of staff;
    jefe de gobierno prime minister;
    una reunión de jefes de gobierno a meeting of heads of government;
    jefe de policía police chief, chief of police, Br chief constable;
    jefe de prensa press officer;
    jefe de producción production manager;
    jefe de producto product line manager;
    jefe de protocolo chief of protocol;
    jefe de proyecto project manager;
    jefe de redacción editor-in-chief;
    jefe de sección departmental head o chief;
    jefe de ventas sales manager
    2. Fam [como apelativo]
    pregúntale al jefe qué se debe ask the guy for the bill;
    jefe, pónganos dos cervezas give us two beers, Br guv o US mac
    3. Méx Fam [padre, madre] old man, f old girl
    4. Esp Fam
    mis jefes [mis padres] my folks
    * * *
    m, jefa f de departamento, organización head; ( superior) boss; POL leader; de tribu chief
    :
    mi jefe my dad fam ;
    mi jefa my mom fam
    * * *
    jefe, -fa n
    1) : chief, head, leader
    jefe de bomberos: fire chief
    2) : boss
    * * *
    jefe n
    1. (superior) boss [pl. bosses]
    3. (de un partido, de una asociación) leader

    Spanish-English dictionary > jefe

  • 5 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

  • 6 Brotan, Johann

    [br]
    b. 24 June 1843 Kattau, Bohemia (now in the Czech Republic)
    d. 20 November 1923 Vienna, Austria
    [br]
    Czech engineer, pioneer of the watertube firebox for steam locomotive boilers.
    [br]
    Brotan, who was Chief Engineer of the main workshops of the Royal Austrian State Railways at Gmund, found that locomotive inner fireboxes of the usual type were both expensive, because the copper from which they were made had to be imported, and short-lived, because of corrosion resulting from the use of coal with high sulphur content. He designed a firebox of which the side and rear walls comprised rows of vertical watertubes, expanded at their lower ends into a tubular foundation ring and at the top into a longitudinal water/steam drum. This projected forward above the boiler barrel (which was of the usual firetube type, though of small diameter), to which it was connected. Copper plates were eliminated, as were firebox stays.
    The first boiler to incorporate a Brotan firebox was built at Gmund under the inventor's supervision and replaced the earlier boiler of a 0−6−0 in 1901. The increased radiantly heated surface was found to produce a boiler with very good steaming qualities, while the working pressure too could be increased, with consequent fuel economies. Further locomotives in Austria and, experimentally, elsewhere were equipped with Brotan boilers.
    Disadvantages of the boiler were the necessity of keeping the tubes clear of scale, and a degree of structural weakness. The Swiss engineer E. Deffner improved the latter aspect by eliminating the forward extension of the water/steam drum, replacing it with a large-diameter boiler barrel with the rear section of tapered wagon-top type so that the front of the water/steam drum could be joined directly to the rear tubeplate. The first locomotives to be fitted with this Brotan-Deffner boiler were two 4−6−0s for the Swiss Federal Railways in 1908 and showed very favourable results. However, steam locomotive development ceased in Switzerland a few years later in favour of electrification, but boilers of the Brotan-Deffner type and further developments of it were used in many other European countries, notably Hungary, where more than 1,000 were built. They were also used experimentally in the USA: for instance, Samuel Vauclain, as President of Baldwin Locomotive Works, sent his senior design engineer to study Hungarian experience and then had a high-powered 4−8−0 built with a watertube firebox. On stationary test this produced the very high figure of 4,515 ihp (3,370 kW), but further development work was frustrated by the trade depression commencing in 1929. In France, Gaston du Bousquet had obtained good results from experimental installations of Brotan-Deffner-type boilers, and incorporated one into one of his high-powered 4−6−4s of 1910. Experiments were terminated suddenly by his death, followed by the First World War, but thirty-five years later André Chapelon proposed using a watertube firebox to obtain the high pressure needed for a triple-expansion, high-powered, steam locomotive, development of which was overtaken by electrification.
    [br]
    Further Reading
    G.Szontagh, 1991, "Brotan and Brotan-Deffner type fireboxes and boilers applied to steam locomotives", Transactions of the Newcomen Society 62 (an authoritative account of Brotan boilers).
    PJGR

    Biographical history of technology > Brotan, Johann

  • 7 Chaudron, Joseph

    [br]
    b. 29 November 1822 Gosselies, Belgium
    d. 16 January 1905 Auderghem, Belgium
    [br]
    Belgian mining engineer, pioneer in boring shafts.
    [br]
    In 1842, as a graduate of the Ecole des Mines in Liège, he became a member of the Belgian Corps Royal des Mines, which he left ten years later as Chief Engineer. By that time he had become decisively influential in the Société Anglo-Belge des Mines du Rhin, founded in 1848. After it became the Gelsenkirchen-based Bergwerkgesellschaft Dahlbusch in 1873, he became President of its Board of Directors and remained in this position until his death. Thanks to his outstanding technical and financial abilities, the company developed into one of the largest in the Ruhr coal district.
    When K.G. Kind practised his shaft-boring for the company in the early 1850s but did not overcome the difficulty of making the bottom of the bore-hole watertight, Chaudron joined forces with him to solve the problem and constructed a rotary heading which was made watertight with a box stuffed with moss; rings of iron tubing were placed on this as the sinking progressed, effectively blocking off the aquiferous strata as a result of the hydrostatic pressure which helped support the weight of the tubing until it was secured permanently. The Kind-Chaudron system of boring shafts in the full section marked an important advance upon existing methods, and was completely applied for the first time at a coalmine near Mons, Belgium, in 1854–6. In Brussels Chaudron and Kind founded the Société de Fonçage par le Procédé Kind et Chaudron in 1854, and Chaudron was granted a patent the next year. Foreign patents followed and the Kind-Chaudron system was the one most frequently applied in the latter part of the nineteenth century. Altogether, under Chaudron's control, there were more than eighty shafts sunk in wet strata in Germany, Belgium, France and England.
    [br]
    Bibliography
    1853–4, "Notice sur le procédé inventé par l'ingénieur Kind, pour l"établissement des puits de mines', Annales des travaux publics de Belgique 12:327–38.
    1862, "Über die nach dem Kindschen Erdbohrverfahren in Belgien ausgefùhrten Schachtbohrarbeiten", Berg-und Hüttenmännische Zeitschrift 21:402−7, 419−21, 444−7.
    1867, "Notice sur les travaux exécutés en France, en Belgique et en Westphalie de 1862– 1867", Annales des travaux publics de Belgique 25: 136–45.
    1872, "Remplacement d'un cuvelage en bois par un cuvelage en fonte", Annales des
    travaux publics de Belgique 30:77–91.
    Further Reading
    D.Hoffmann, 1962, Acht Jahrzehnte Gefrierverfahren nachPötsch, Essen, pp. 12–18 (evaluates the Kind-Chaudron system as a new era).
    W.Kesten, 1952, Geschichte der Bergwerksgesellschaft Dahlbusch, Essen (gives a delineation of the mining company's flourishing as well as the technical measures under his influence).
    T.Tecklenburg, 1914, Handbuch der Tiefbohrkunde, 2nd edn, Vol VI, Berlin, pp. 39–58 (provides a detailed description of Chaudron's tubing).
    WK

    Biographical history of technology > Chaudron, Joseph

  • 8 Porsche, Ferdinand

    [br]
    b. 3 September 1875 Maffersdorf, Austria
    d. 30 January 1952 Stuttgart, Baden-Württemberg, Germany
    [br]
    Austrian automobile engineer, designer of the Volkswagen car.
    [br]
    At the age of fifteen, Porsche built a complete electrical installation for his home. In 1894 he went to technical school in Vienna. Four years later he became Manager of the test department of the Bela Egger concern, which later became part of the Brown Boveri organization where he became the first Assistant in the calculating section. In 1899 he joined the long-established coachbuilders Jacob Lohner, and in 1902 a car of his design with mixed drive won the 1,000 kg (2,200 lb) class in the Exelberg races. In 1905 he joined the Austro-Daimler Company as Technical Director; his subsequent designs included an 85 hp mixed-drive racing car in 1907 and in 1912 an air-cooled aircraft engine which came to be known in later years as the "great-grandfather" of the Volkswagen engine. In 1916, he became Managing Director of Austro-Daimler.
    In 1921 he designed his first small car, which, appearing under the name of Sasch, won its class in the 1922 Targa Florio, a gruelling road-race in Italy. In 1923 Porsche left Austro-Daimler and joined the Daimler Company in Untertürk-heim, near Stuttgart, Germany. In 1929 he joined the firm of Steyr in Austria as a director and chief engineer, and in 1930 he set up his own independent design office in Stuttgart. In 1932 he visited Russia, and in the same year completed the design calculations for the Auto-Union racing car.
    In 1934, with his son Ferry (b. 1909), he prepared a plan for the construction of the German "people's car", a project initiated by Adolf Hitler and his Nazi regime; in June of that year he signed a contract for the design work on the Volkswagen. Racing cars of his design were also successful in 1934: the rear-engined Auto-Union won the German Grand Prix, and another Au to-Union car took the Flying Kilometre speed record at 327 km/h (203.2 mph). In 1935 Daimler-Benz started preproduction on the Volkswagen. The first trials of the cars took place in the autumn of 1936, and the following year thirty experimental cars were built by Daimler-Benz. In that year, Porsche visited the United States, where he met Henry Ford; in October an Auto-Union took the Flying Five Kilometre record at 404.3 km/h (251.2 mph). On 26 May 1938, the foundation stone of the Volkswagen factory was laid in Wolfsburg, near Braunschweig, Germany.
    In October 1945 Ferdinand Porsche was arrested by a unit of the United States Army and taken to Hessen; the French army removed him to Baden-Baden, then to Paris and later to Dijon. During this time he was consulted by Renault engineers regarding the design of their 4CV and designed a diesel-engined tractor. He was finally released on 5 August 1947. His last major work before his death was the approval of the design for the Cisitalia Grand Prix car.
    [br]
    Principal Honours and Distinctions
    Poetting Medal 1905. Officer's Cross of Franz Josef 1916. Honorary PhD, Vienna Technical University 1916. Honorary PhD, University of Stuttgart 1924.
    Further Reading
    K.Ludvigsen, 1983, Porsche: Excellence Was Expected: The Complete History of the Sports and Racing Cars, London: Frederick Muller.
    T.Shuler and G.Borgeson, 1985, "Origin and Evolution of the VW Beetle", Automobile
    Quarterly (May).
    M.Toogood, 1991, Porsche—Germany's Legend, London: Apple Press.
    IMcN

    Biographical history of technology > Porsche, Ferdinand

  • 9 Railton, Reid Anthony

    [br]
    b. 24 June 1895 Alderley Edge, Cheshire, England
    d. 1 September 1977 Berkeley, California, USA.
    [br]
    English designer of record-breaking automobiles and motor boats.
    [br]
    Railton was educated at Rugby School and Manchester University. From 1915 to 1917 he served an apprenticeship with Leyland Motors, after which he served in the Motor Boat Section of the Royal Naval Volunteer Reserve (RNVR). Having obtained his Royal Aeronautical Club (RAeC) pilot's certificate in 1918, he went to the United States to study factory layout. He was Assistant to the Chief Engineer of Leyland Motors from 1921 to 1923, when he became Managing Director of Arab Motors Limited of Letchworth, Hertfordshire.
    Railton was engineering consultant to Sir Malcolm Campbell, and was responsible for Campbell's Bluebird II boat which set a water speed record of 228.1 km/h (141.7 mph) in 1939. He was the designer of John R.Cobb's Napier Railton car which broke the speed record for automobiles on 16 September 1947 with an average speed of 634.3 km/h (394.2 mph); this record stood until 1964, when it was broken by Sir Malcolm Campbell's son Donald. Railton was also responsible for Cobb's boat, Crusader, which was the first to exceed 200 mph (322 km/h).
    Railton presented many papers to the Institution of Automobile Engineers, the Institution of Mechanical Engineers and the Society of Automotive Engineers in the United States. In his later years, he lived in Berkeley, California.
    [br]
    Further Reading
    1971–80, Who Was Who, London: A. \& C.Black.
    IMcN

    Biographical history of technology > Railton, Reid Anthony

  • 10 Stephenson, Robert

    [br]
    b. 16 October 1803 Willington Quay, Northumberland, England
    d. 12 October 1859 London, England
    [br]
    English engineer who built the locomotive Rocket and constructed many important early trunk railways.
    [br]
    Robert Stephenson's father was George Stephenson, who ensured that his son was educated to obtain the theoretical knowledge he lacked himself. In 1821 Robert Stephenson assisted his father in his survey of the Stockton \& Darlington Railway and in 1822 he assisted William James in the first survey of the Liverpool \& Manchester Railway. He then went to Edinburgh University for six months, and the following year Robert Stephenson \& Co. was named after him as Managing Partner when it was formed by himself, his father and others. The firm was to build stationary engines, locomotives and railway rolling stock; in its early years it also built paper-making machinery and did general engineering.
    In 1824, however, Robert Stephenson accepted, perhaps in reaction to an excess of parental control, an invitation by a group of London speculators called the Colombian Mining Association to lead an expedition to South America to use steam power to reopen gold and silver mines. He subsequently visited North America before returning to England in 1827 to rejoin his father as an equal and again take charge of Robert Stephenson \& Co. There he set about altering the design of steam locomotives to improve both their riding and their steam-generating capacity. Lancashire Witch, completed in July 1828, was the first locomotive mounted on steel springs and had twin furnace tubes through the boiler to produce a large heating surface. Later that year Robert Stephenson \& Co. supplied the Stockton \& Darlington Railway with a wagon, mounted for the first time on springs and with outside bearings. It was to be the prototype of the standard British railway wagon. Between April and September 1829 Robert Stephenson built, not without difficulty, a multi-tubular boiler, as suggested by Henry Booth to George Stephenson, and incorporated it into the locomotive Rocket which the three men entered in the Liverpool \& Manchester Railway's Rainhill Trials in October. Rocket, was outstandingly successful and demonstrated that the long-distance steam railway was practicable.
    Robert Stephenson continued to develop the locomotive. Northumbrian, built in 1830, had for the first time, a smokebox at the front of the boiler and also the firebox built integrally with the rear of the boiler. Then in Planet, built later the same year, he adopted a layout for the working parts used earlier by steam road-coach pioneer Goldsworthy Gurney, placing the cylinders, for the first time, in a nearly horizontal position beneath the smokebox, with the connecting rods driving a cranked axle. He had evolved the definitive form for the steam locomotive.
    Also in 1830, Robert Stephenson surveyed the London \& Birmingham Railway, which was authorized by Act of Parliament in 1833. Stephenson became Engineer for construction of the 112-mile (180 km) railway, probably at that date the greatest task ever undertaken in of civil engineering. In this he was greatly assisted by G.P.Bidder, who as a child prodigy had been known as "The Calculating Boy", and the two men were to be associated in many subsequent projects. On the London \& Birmingham Railway there were long and deep cuttings to be excavated and difficult tunnels to be bored, notoriously at Kilsby. The line was opened in 1838.
    In 1837 Stephenson provided facilities for W.F. Cooke to make an experimental electrictelegraph installation at London Euston. The directors of the London \& Birmingham Railway company, however, did not accept his recommendation that they should adopt the electric telegraph and it was left to I.K. Brunel to instigate the first permanent installation, alongside the Great Western Railway. After Cooke formed the Electric Telegraph Company, Stephenson became a shareholder and was Chairman during 1857–8.
    Earlier, in the 1830s, Robert Stephenson assisted his father in advising on railways in Belgium and came to be increasingly in demand as a consultant. In 1840, however, he was almost ruined financially as a result of the collapse of the Stanhope \& Tyne Rail Road; in return for acting as Engineer-in-Chief he had unwisely accepted shares, with unlimited liability, instead of a fee.
    During the late 1840s Stephenson's greatest achievements were the design and construction of four great bridges, as part of railways for which he was responsible. The High Level Bridge over the Tyne at Newcastle and the Royal Border Bridge over the Tweed at Berwick were the links needed to complete the East Coast Route from London to Scotland. For the Chester \& Holyhead Railway to cross the Menai Strait, a bridge with spans as long-as 460 ft (140 m) was needed: Stephenson designed them as wrought-iron tubes of rectangular cross-section, through which the trains would pass, and eventually joined the spans together into a tube 1,511 ft (460 m) long from shore to shore. Extensive testing was done beforehand by shipbuilder William Fairbairn to prove the method, and as a preliminary it was first used for a 400 ft (122 m) span bridge at Conway.
    In 1847 Robert Stephenson was elected MP for Whitby, a position he held until his death, and he was one of the exhibition commissioners for the Great Exhibition of 1851. In the early 1850s he was Engineer-in-Chief for the Norwegian Trunk Railway, the first railway in Norway, and he also built the Alexandria \& Cairo Railway, the first railway in Africa. This included two tubular bridges with the railway running on top of the tubes. The railway was extended to Suez in 1858 and for several years provided a link in the route from Britain to India, until superseded by the Suez Canal, which Stephenson had opposed in Parliament. The greatest of all his tubular bridges was the Victoria Bridge across the River St Lawrence at Montreal: after inspecting the site in 1852 he was appointed Engineer-in-Chief for the bridge, which was 1 1/2 miles (2 km) long and was designed in his London offices. Sadly he, like Brunel, died young from self-imposed overwork, before the bridge was completed in 1859.
    [br]
    Principal Honours and Distinctions
    FRS 1849. President, Institution of Mechanical Engineers 1849. President, Institution of Civil Engineers 1856. Order of St Olaf (Norway). Order of Leopold (Belgium). Like his father, Robert Stephenson refused a knighthood.
    Further Reading
    L.T.C.Rolt, 1960, George and Robert Stephenson, London: Longman (a good modern biography).
    J.C.Jeaffreson, 1864, The Life of Robert Stephenson, London: Longman (the standard nine-teenth-century biography).
    M.R.Bailey, 1979, "Robert Stephenson \& Co. 1823–1829", Transactions of the Newcomen Society 50 (provides details of the early products of that company).
    J.Kieve, 1973, The Electric Telegraph, Newton Abbot: David \& Charles.
    PJGR

    Biographical history of technology > Stephenson, Robert

  • 11 производитель работ

    2) Engineering: foreman, superintendent
    3) Agriculture: section engineer
    5) Railway term: contractor
    6) Economy: site supervisor
    7) Architecture: clerk of the works (только в России), superintendent engineer
    8) Business: clerk of works, operator
    9) Sakhalin energy glossary: developer
    11) Makarov: agent

    Универсальный русско-английский словарь > производитель работ

  • 12 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

  • 13 Thévénin, Léon Charles

    SUBJECT AREA: Electricity
    [br]
    b. 30 March 1857 Paris, France
    d. 21 September 1926 Paris, France
    [br]
    French telegraph engineer who extended Ohm's Law to the analysis of complex electrical circuits.
    [br]
    Following a basic education, Thévénin entered the Ecole Polytechnique in Paris, graduating in 1876. In 1878 he joined the Corps of Telegraph Engineers (which subsequently became the French PTT). There he initially worked on the development of long-distance underground telegraph lines, but he later switched to working on power lines. Appointed a teaching inspector at the Ecole Supérieure in 1882, he became increasingly interested in the problems of measurement in electrical circuits. As a result of studying Kirchoff's Laws, which were essentially derived from Ohm's Law, he developed his now-famous theorem which made it possible to calculate the currents in more complex electrical circuits.
    As well as becoming Head of the Bureau des Lignes, up until his death he also found time for teaching other subjects outside the Ecole, including a course in mechanics at the Institut National Agronomique. In 1896 he was appointed Director of the Telegraph Engineering School, then, in 1901, Engineer-in-Chief of the telegraph workshops. He retired in 1914.
    [br]
    Bibliography
    1883, "Extension of Ohm's Law to complex electrical circuits", Comptes rendus 97:159 (describes Thévénin's Theorem).
    Further Reading
    F.E.Terman, 1943, Radio Engineers'Handbook, New York: McGraw-Hill, Section 3 (summarizes the relevant circuit theory).
    KF

    Biographical history of technology > Thévénin, Léon Charles

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