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1 quick olive coupling for compressed air
= water;= inert fluids and oil быстроразъёмная муфта с внутренним прижимным кольцом для труб пневмосистемы, подачи воды, инертных жидкостей и маслаАнгло-русский словарь по машиностроению > quick olive coupling for compressed air
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2 compressed-air line
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3 compressed air tank
<tech.gen> (for pressurized air; e.g. stationary or in brake systems) ■ Druckluftbehälter m -
4 compressed-air sampler for sand
Универсальный англо-русский словарь > compressed-air sampler for sand
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5 compressed-air sampler (for sand)
Англо-русский словарь дорожника > compressed-air sampler (for sand)
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6 compressed-air sampler (for sand)
Англо-русский словарь дорожника > compressed-air sampler (for sand)
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7 fittings for every type of compressed air ringmain
Англо-русский словарь по машиностроению > fittings for every type of compressed air ringmain
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8 programmable valve with 24 hour/7 day timer for closing and opening the compressed air ringmain
программируемый клапан с 24-часовым/7-дневным таймером для открытия/закрытия пневмоподачи кольцевого магистрального трубопроводаАнгло-русский словарь по машиностроению > programmable valve with 24 hour/7 day timer for closing and opening the compressed air ringmain
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9 air tank
<tech.gen> ■ Luftbehälter m<comvhcl.brake> (for compressed air) ■ Vorratsbehälter m -
10 air line
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11 air reservoir
<tech.gen> ■ Luftbehälter m<comvhcl.brake> (for compressed air) ■ Vorratsbehälter m -
12 air supply [system]
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13 air
1) воздух
2) вентиляционный
3) воздухоспускный
4) пневматичееский
5) пневматический
6) проветривать
7) сборный
8) <aeron.> авиа-
9) воздушный
10) отбойный
11) дроссельный
– access for air
– actuating air
– admit air
– air ambulance
– air analyzer
– air bag
– air balance
– air base
– air bath
– air beacon
– air binder
– air blast
– air blasting
– air bleed valve
– air bleeder
– air blower
– air bluing
– air box
– air breaking
– air bumper
– air calcination
– air capacitor
– air celestial navigation
– air cell
– air change
– air choke
– air circulation
– air classifier
– air classifying
– air cleaning
– air compressor
– air conditioning
– air cooler
– air cooling
– air crossing
– air curtain
– air cushion
– air damper
– air dash-pot
– air distance recorder
– air distributor
– air door
– air drag
– air draught
– air drier
– air duct
– air ejector condenser
– air entrapment
– air evacuation line
– air filter
– air flow classifier
– air freshener
– air gap
– air gauge
– air hardening
– air heading
– air heater
– air hoist
– air insulation
– air intake
– air jet
– air jigging
– air launching
– air line
– air load
– air lock
– air manifold
– air marker
– air mass
– air medical service
– air meteorological service
– air moisture
– air motor
– air navigation
– air outlet
– air partition
– air passage
– air pipe
– air pit
– air pocket
– air pollution
– air preheater
– air pump
– air purification
– air quality
– air raise
– air refrigerating machine
– air route
– air rudder
– air scale
– air scoop
– air scraper
– air scrubbing
– air separation
– air servicer
– air show
– air shrinkage
– air sickness
– air slaking
– air space
– air stain
– air start
– air supply
– air swinging
– air tightness
– air traffic
– air traffic control
– air traffic controller
– air transport
– air tuyere
– air uptake
– air valve
– air wave
– ambient air
– ascending air
– automatic air regulator
– auxiliary air
– blast-furnace air
– bleed air
– carburetted air
– carriage by air
– carrier air
– combustion air
– compressed air
– compressed air hammer
– compressed air locomotive
– conditioned air
– control air
– cooling air
– cycle air
– damp air
– deliver by air mail
– district air crossing
– ducted air intake
– dusty air
– entrain air
– entrap air
– entrapped air
– evacuate air from
– excess air
– excess air coefficient
– excess air ratio
– exhaust air
– extensive air shower
– foul air
– free air
– fresh air
– gas-heated air heater
– gilled air heater
– go on the air
– ground-based air navigation
– heated air ventilation
– hot air header
– hydraulic air compressor
– induced air
– inducted air
– injection air
– inleakage of air
– ionized air
– large-scale air current
– liquid air
– main air intake
– major air route
– mine air
– multipass air heater
– oil bath air cleaner
– outdoor air
– overfire air
– oxygen-enriched air
– ozonized air
– permanent air
– permanent air crossing
– plate air heater
– plate-fin air preheater
– polluted air
– precompressed air
– preheated air
– primary air
– pure air
– purified air
– rarefied air
– recuperative air cooler
– regenerative air cooler
– return air
– rough air
– saturated air
– sealing air
– self-contained air conditioner
– ship by air freight
– single-pass air heater
– single-stage air heater
– soil air
– split-flow air heater
– spray air cooler
– stagnant air
– standard air
– starting air
– still air
– still air freezing
– suction air duct
– tempering air damper
– tempering air valve
– three-pass air heater
– travel by air
– true air
– turbulent air
– two-stage air heater
– underground air
– unfeather air screw
– used air
– vulcanization in air
– vulcanize in air
compressed air operated fan — вентилятор с пневматическим привод
maritime moderate air — <meteor.> воздух умеренный морской
scale distance of air base — <phot.> базис фотографирования в масштабе аэроснимка, базис фотографирования в масштабе стереомодели
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14 coupling
сцепление; фрикцион; муфта; зубчатая муфта; кулачковая муфта; муфта сцепления; защёлка; собачка; кулак; сопряжение; сочленение (напр. шарнирного устройства); связь (по радио); взаимосвязь; взаимодействие; сцепной прибор; сцепка; цепной замок; стяжка; спаривание; соединение; соединительное звено (напр. цепи); стыковка; связывание; увязка; внедрение; доведение (результатов исследований); II соединительный; связывающий- coupling bar - coupling between oscillations - coupling cable - coupling component - coupling cone - coupling connector - coupling device - coupling edge - coupling end - coupling engagement - coupling error - coupling face - coupling fitting - coupling flange - coupling fork - coupling gasket - coupling half - coupling head - coupling hitch - coupling hook - coupling joint - coupling lever - coupling lifter - coupling link - coupling lock - coupling mechanism - coupling member - coupling nut - coupling of Asiatic profile - coupling of European profile - coupling of pipeline - coupling of pipeline sections - coupling of serie B - coupling pawl - coupling piece - coupling pipe - coupling point - coupling power - coupling ring - coupling rod - coupling screw - coupling screwing-on - coupling shaft - coupling site - coupling size - coupling sleeve - coupling socket - coupling spindle - coupling system - coupling unit - coupling with resilient members - coupling with rubber bushings - adapter coupling - additional coupling - air hose coupling - air-line coupling - ajax flexible coupling - annular coupling - Bibly coupling - capacitive coupling - cascade coupling - cased-muff coupling - clamp shaft coupling - cone coupling - cone-vice coupling - control coupling - cross coupling - cross sliding coupling - curvex coupling - Curvic coupling - cylindrical single-piece body coupling - diaphragm coupling - direct coupling- disk- disengaging coupling - dog coupling - double tapered coupling - double universal coupling - dresser coupling - drum disconnect coupling - eddy current coupling - elastic coupling - electric coupling - electrical coupling - electromagnetic coupling - expanding coupling - expansible coupling - expansion coupling - extension coupling - face tooth coupling - Falk coupling - fast coupling - feedback coupling - female threaded swivel coupling - fire-hose coupling - fixed coupling - fixed Curvic coupling - flange coupling - flanged coupling - flare quick tapered coupling from nickel-plated brass - flexible coupling - flexible block coupling - floating coupling - fluid coupling - fluid coupling adjustable by variable configuration of working space - fluid coupling adjustable by variable filling - fluid coupling with circulation - fluid coupling without circulation - fluid coupling without support - fluid drive coupling - fluted coupling - friction cone coupling - friction coupling - friction clutch coupling - full-floating coupling - funnel coupling - gear coupling - gear tooth-type coupling - gum coupling - hardened coupling - Hirth coupling - Hirth gear coupling - Hirth-ring coupling - Hirth tooth coupling - holdfast coupling - hydraulic coupling - hysteresis coupling - gas male threaded quick coupling - induction coupling - infused emitter coupling - interstage coupling - inverse coupling - jaw coupling - joint coupling - joint-type coupling - keyed coupling - lamination coupling - leather-belt coupling - leather-link coupling - link coupling - load limiting fluid coupling - loading coupling - loose coupling - loose-sliding coupling - Lord coupling - lub'air quick coupling - magnetic coupling - magnetic particle coupling - main coupling - make-and-break coupling - master control coupling - mixed coupling - movable coupling - muff coupling - multidisk coupling - needle coupling - nonlinear coupling - Oldham coupling - Oldum coupling - olive coupling for steel- copper- optimum coupling - overload coupling - parallel two-space fluid coupling - pawl coupling - permanent coupling - permanent shaft coupling - pill-to-pin coupling - pin coupling - pin-and-bushing flexible coupling - pin flexible coupling - pipe coupling - pivot-type coupling - plate coupling - plate-type coupling - pneumatic coupling - powder coupling - pressure coupling - prolac standard coupling with pushbutton for quick disconnection - protecting fluid coupling - pull rod coupling - push-connect air coupling - quick-acting coupling - quick-action coupling - quick-connect coupling - quick olive coupling for compressed air- water- quick-release coupling - rapid coupling - ratchet coupling - reducer coupling - reducing coupling - releasing Curvic coupling - resilient-material coupling - ribbed clamp coupling - rigid coupling - ring coupling - ring compression coupling - rod coupling - rod reducing coupling - roller chain flexible coupling - rope coupling - rotary coupling - rubber annulus coupling - rubber-packed coupling - rubber spider coupling - rubber tire coupling - safety coupling - scoop controlled fluid coupling - screw coupling - screwed coupling - self-aligning coupling - Sellers coupling - semipermanent coupling - semiuniversal Curvic coupling - series two-space fluid coupling - shaft coupling - shear-pin coupling - shift Curvic coupling - single-space fluid coupling - single-support fluid coupling - single universal coupling - sleeve coupling - sleeve-type coupling - slider coupling - sliding coupling - slip coupling - slip joint coupling - solid coupling - spiral jaw coupling - spline coupling - split coupling - split muff coupling - spring coupling - spring-loaded coupling - square-jaw coupling - star coupling - starting-breaking fluid coupling - starting fluid coupling - stationary coupling - straight pipe coupling - stud-retained coupling - sucker-rod coupling - swivel coupling - swivel hose quick release safety coupling - synchronous coupling - teflon-coated tapered threaded male quick release safety coupling - thimble coupling - threaded coupling - threadless coupling - through coupling - tight coupling - toothed coupling - toothed face coupling - tooth ring coupling - tooth-type coupling - torque coupling - trailer coupling - tube coupling - tubing coupling - turned-down coupling - turntable coupling - two-space fluid coupling - two-support fluid coupling - union coupling - universal coupling - universal spindle coupling - variable coupling - vernier coupling - viscous coupling - weak coupling - Westinghouse-Nuttall coupling - working control coupling - zigzag spring coupling -
15 reservoir
<tech.gen> (anything that acts as a supply of sth) ■ Reservoir n<tech.gen> (collecting tank, basin) ■ Sammelbecken n<tech.gen> (gen., any kind) ■ Vorratsbehälter m<build.hydr> ■ Wasserstaubecken n ; Speicherbecken n<comvhcl.brake> (for compressed air) ■ Vorratsbehälter m< energ> (gen. hydroelectric power station) ■ Staubecken n ; Speicherbecken n ; Talsperrenbecken n ; Speichersee m rar< hydr> ■ Stausee m< logist> ■ Tank mprakt <mvhcl.brake> (of master brake cylinder) ■ Bremsflüssigkeitsbehälter m ; Bremsflüssigkeits-Ausgleichsbehälter m form ; Ausgleichsbehälter m prakt -
16 inert fluids and oil
Англо-русский словарь по машиностроению > inert fluids and oil
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17 water
2) вода; II поливать, орошать; увлажнять; мочить; смачивать- water capacity - water capacity of cooling system - water-circulating pump - water circulation - water-circulation gauge - water cistern - water column - water column pressure - water-cooled - water delivery - water-desalination apparatus - water discharge - water-discharge line - water drain connection - water engine - water filter - water from combustion - water furrowing plough - water gas - water-gas generator - water-gas plant - water injection - water inlet gasket - water inlet hose - water inlet hose clamp - water inlet manifold - water jacket plug - water jacket side cover - water jacket space - water jacket top cover - water leak - water leakage - water level - water-level float - water lift - water line - water meter - water nozzle - water obstacle - water outlet connection - water outlet manifold - water pipe hose - water pipe hose clip - water pit - water pocket - water point - water press - water pressure - water-proof - water propeller - water propeller shaft - water propeller transfer case - water pump elbow - water pump gland flange - water pump gland nut - water pump gland ring - water pump impeller - water pump packing - water pump shaft gear - water pump vane - water-quenched - water recovery - water removal - water-repellant - water-resisting properties - water segregator - water-separator - water sieve - water situation - water space - water splash - water sprinkler tank - water supply - water supply line - water system - water tank - water treatment - water-truck - water-tube boiler - water tube sludge - water under the keel - aerated water - agricultural water consumption - catch-water - dead water - earth water - earthy water - fleet water - flood water - gas water heater - ground water - high water - leakage water - melt water - mixing water heater - process water supply - sewage water - surface water heater - subsoil water - tube water heater -
18 drilling
бурение; сверление; высверливаниеbottom supported marine drilling — бурение скважин с опорой на дно (со стационарной свайной платформы)
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1. бурение2. pl. буровой шлам, буровая мелочь
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1) бурение; сверление; высверливание || буровой; бурильный2) pl выбуренная порода3) pl буровой шлам, буровая мука; буровая мелочь4) pl скважины5) pl алмазы величиной от 4 до 23 штук на карат•drilling afloat — бурение наплаву;
drilling ahead — 1) бурение ниже башмака обсадной колонны ( на значительную глубину) 2) бурение, опережающее проходку горной выработки;
drilling by flame — 1) термическое бурение 2) прожигание скважин;
drilling by jetting method — 1) бурение гидравлическим способом 2) гидромониторное бурение;
drilling deeper — углубка скважины;
drilling for gas — бурение на газ;
drilling for oil — бурение на нефть;
drilling for structure — картировочное бурение;
drilling for water — бурение на воду;
drilling from floating vessel — бурение с плавучего основания;
drilling in cramped quarter — бурение глубоких скважин из выработки малого сечения;
drilling into abnormal pressure zone — бурение в зоне высокого давления;
not drilling — простаивающий ();
drilling off the whipstock — бурение со стационарного отклонителя;
drilling on the bottom — чистое бурение;
drilling out of cement plug — разбуривание цементной пробки;
drilling suspended indefinitely — бурение прекращено на неопределённое время;
drilling the pay — разбуривание продуктивного пласта;
drilling to completion — бурение до проектной глубины;
drilling to predetermined depth — бурение до проектной глубины;
drilling to projected depth — бурение до проектной глубины;
drilling with aerated fluid — бурение с промывкой аэрированной жидкостью;
drilling with aerated formation water — бурение с промывкой аэрированными пластовыми водами;
drilling with air — бурение с очисткой забоя воздухом;
drilling with counterflow — бурение с обратной промывкой;
drilling with explosives — взрывное бурение;
drilling with localized mud circulation — бурение с местной промывкой;
drilling with mud — бурение с промывкой буровым раствором;
drilling with oil — бурение с промывкой раствором на углеводородной основе;
drilling with salt water — бурение с промывкой солёной водой;
drilling with sound vibration — вибробурение со звуковыми частотами;
- drilling of submarine wellsdrilling without drill pipe — беструбное бурение;
- abrasive jet drilling
- aerated-fluid drilling
- aerated-mud drilling
- aeration drilling
- air drilling
- air-and-gas drilling
- air-and-stable-foam drilling
- air-flush drilling
- air-hammer drilling
- air-hammer rotary drilling
- air-motor drilling
- air-percussion drilling
- air-reverse-circulation drilling
- angled drilling
- angular drilling
- anomaly drilling
- appraisal drilling
- arc drilling
- auger drilling
- balanced drilling
- barge drilling
- bench drilling
- blasthole drilling
- blind drilling
- borehole drilling
- bottom supported marine drilling
- bottomhole circulation drilling
- bottom-supported offshore drilling
- branched-hole drilling
- cable drilling
- cable-churn drilling
- cable-Pennsylvanian drilling
- cable-rotary drilling
- cable-tool drilling
- calibration drilling
- Calyx drilling
- Canadian drilling
- carbide percussion drilling
- chain bit drilling
- checkerboard drilling
- chemical drilling
- chilled-shot drilling
- churn drilling
- churn flame drilling
- city-lot drilling
- clean drilling
- close drilling
- close-spaced surface drilling
- close-spaced underground drilling
- cluster drilling
- cluster directional drilling of slant
- combination drilling
- compressed air drilling
- continuous penetration drilling
- contract drilling
- control angle drilling
- controlled drilling
- controlled-angle drilling
- core drilling
- counterflush drilling
- counterflush core drilling
- cover drilling
- Craelius method drilling
- deep drilling
- deep-hole drilling
- deep-water drilling
- deep-well drilling
- definition drilling
- dense drilling
- development drilling
- diamond drilling
- diamond core drilling
- direct-air-circulation drilling
- direct-circulation drilling
- directed drilling
- directional drilling
- directional drilling of slant holes
- double-barreled drilling
- double-directional drilling
- double-hand drilling
- double-inclinated drilling
- double-simultaneous drilling
- double-tube drilling
- downhole drilling
- downhole electrical motor drilling
- downhole hammer drilling
- downhole percussion drilling
- downhole turbine motor drilling
- down-the-hole drilling
- drainhole drilling
- drive-pipe drilling
- dry drilling
- dry-hole drilling
- dry percussive drilling
- dual-bore cluster drilling
- dual-hole simultaneous drilling
- dust-free drilling
- dustless drilling
- easy drilling
- electrical drilling
- electrical arc drilling
- electrical bottomhole drilling
- electrohydraulic drilling
- electrojet drilling
- electron beam drilling
- erosion drilling
- erosion jet drilling
- exhaust gas drilling
- exploration drilling
- exploratory drilling
- explosion drilling
- extended reach drilling
- failure-free drilling
- fan drilling
- flame drilling
- flame-jet drilling
- floating drilling
- fluid circulating drilling
- fluid core drilling
- flush drilling
- foam drilling
- formation drilling
- full-diameter drilling
- full-hole drilling
- gas drilling
- gas-well drilling
- geological drilling
- group drilling
- grout-hole drilling
- guided drilling
- hand drilling
- hand churn drilling
- hand hammer drilling
- hard-rock drilling
- heavy weight drilling
- high-frequency drilling
- high-frequency percussion drilling
- high-velocity jet drilling
- hooded dry drilling
- horizontal drilling
- horizontal branched-hole drilling
- horizontal-drainhole drilling
- horizontal-radial diamond drilling
- horizontal-ring drilling
- hydraulical drilling
- hydraulical percussion drilling
- hydraulical rotary drilling
- hydrodynamical drilling
- hydropercussion drilling
- hydropercussion rotary drilling
- hydroturbine downhole motor drilling
- implosion drilling
- inclination drilling
- induction drilling
- infill drilling
- injection drilling
- instrumental drilling
- intermediate hole drilling
- inverted oil emulsion drilling
- jet drilling
- jet-bit drilling
- jet-erosion drilling
- jet-piercer drilling
- jet-piercing drilling
- jetted-particle drilling
- jetting drilling
- jump drilling
- key well drilling
- large-hole drilling
- laser drilling
- lateral drilling
- line drilling
- line-hole drilling
- line-well drilling
- long-hole drilling
- machine drilling
- magnetostriction drilling
- magnetostriction rotary drilling
- marine drilling
- mechanical drilling
- mechanized drilling
- Mesabi structural drilling
- microbit drilling
- mist drilling
- moderate drilling
- mud-circulating drilling
- mud-powered hammer drilling
- multidirectional drilling
- multihole drilling
- multiple drilling
- multiple-plan drilling
- noncore drilling
- nonpressure drilling
- offset drilling
- offshore drilling
- oil-emulsion drilling
- oil-mud drilling
- oil-well drilling
- old-well deeper drilling
- one-man drilling
- on-land drilling
- optimized drilling
- oriented drilling
- original drilling
- outstep drilling
- overbalanced drilling
- overburden drilling
- overhead drilling
- parallel hole drilling
- pay drilling
- pellet impact drilling
- Pennsylvanian drilling
- percussion drilling
- percussion-air drilling
- percussion-rod drilling
- percussion-rotation drilling
- percussive drilling
- percussive-machine drilling
- percussive-rotary drilling
- performance drilling
- permafrost drilling
- petroleum drilling
- pier drilling
- pillar extraction drilling
- pilot drilling
- pipe-driving drilling
- pipeless drilling
- pipeless downhole electrical motor drilling
- placer drilling
- plasma drilling
- plug drilling
- pneumatical drilling
- preliminary drilling
- pressure drilling
- probe drilling
- production drilling
- prospect drilling
- pulsed jet drilling
- push-button drilling
- push-feed drilling
- quick-blow drilling
- radial drilling
- random drilling
- rapid-blow drilling
- reduced-pressure drilling
- remote automated drilling
- reverse-circulation core drilling
- ring drilling
- rock drilling
- rocket drilling
- rod drilling
- rod-tool drilling
- roller-bit drilling
- rope drilling
- rotary drilling
- rotary-percussion drilling
- rotary-turbine drilling
- rotation drilling
- rotation-vibropercussion drilling
- rough drilling
- run-to-waste drilling
- safe drilling
- salt-dome drilling
- sample drilling
- scattered drilling
- seam drilling
- secondary drilling
- sectional steel drilling
- self-cleaning drilling
- shaft drilling
- shallow drilling
- shaped charge drilling
- shelf drilling
- ship-side drilling
- shock-wave drilling
- shot drilling
- shot core drilling
- shothole drilling
- simultaneous drilling
- single-hand drilling
- single-pass drilling
- single-row drilling
- slant-hole drilling
- slim-hole drilling
- sonic combination drilling
- spark drilling
- spindle feed drilling
- spring-pole drilling
- steel-shot drilling
- straight-ahead drilling
- straight-hole drilling
- straight-hole directional drilling
- stratigraphic test drilling
- structure drilling
- subgrade drilling
- submarine drilling
- subsurface drilling
- superdeep drilling
- surface drilling
- surface blasthole drilling
- surface hole drilling
- tension drilling
- test drilling
- test-hole drilling
- test-well drilling
- thermal drilling
- top hammer drilling
- top hole drilling
- tough drilling
- town-lot drilling
- triple-hole simultaneous drilling
- trouble-free drilling
- tungsten-carbide drilling
- turbine motor drilling
- ultradeep drilling
- ultrasonic drilling
- underbalanced drilling
- underground drilling
- underwater drilling
- up-hole drilling
- upper-hole drilling
- vacuum drilling
- vertical drilling
- vertical ring drilling
- vibration drilling
- vibratory drilling
- vibratory-percussion drilling
- vibratory-rotary drilling
- vibropercussion drilling
- vibropercussion rotary drilling
- wash drilling
- water drilling
- water-assisted drilling
- water-flush drilling
- water-jet drilling
- water-well drilling
- well drilling
- wet drilling
- wild-cat drilling
- wireline drilling* * *Англо-русский словарь нефтегазовой промышленности > drilling
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19 Westinghouse, George
[br]b. 6 October 1846 Central Bridge, New York, USAd. 12 March 1914 New York, New York, USA[br]American inventor and entrepreneur, pioneer of air brakes for railways and alternating-current distribution of electricity.[br]George Westinghouse's father was an ingenious manufacturer of agricultural implements; the son, after a spell in the Union Army during the Civil War, and subsequently in the Navy as an engineer, went to work for his father. He invented a rotary steam engine, which proved impracticable; a rerailing device for railway rolling stock in 1865; and a cast-steel frog for railway points, with longer life than the cast-iron frogs then used, in 1868–9. During the same period Westinghouse, like many other inventors, was considering how best to meet the evident need for a continuous brake for trains, i.e. one by which the driver could apply the brakes on all vehicles in a train simultaneously instead of relying on brakesmen on individual vehicles. By chance he encountered a magazine article about the construction of the Mont Cenis Tunnel, with a description of the pneumatic tools invented for it, and from this it occurred to him that compressed air might be used to operate the brakes along a train.The first prototype was ready in 1869 and the Westinghouse Air Brake Company was set up to manufacture it. However, despite impressive demonstration of the brake's powers when it saved the test train from otherwise certain collision with a horse-drawn dray on a level crossing, railways were at first slow to adopt it. Then in 1872 Westinghouse added to it the triple valve, which enabled the train pipe to charge reservoirs beneath each vehicle, from which the compressed air would apply the brakes when pressure in the train pipe was reduced. This meant that the brake was now automatic: if a train became divided, the brakes on both parts would be applied. From then on, more and more American railways adopted the Westinghouse brake and the Railroad Safety Appliance Act of 1893 made air brakes compulsory in the USA. Air brakes were also adopted in most other parts of the world, although only a minority of British railway companies took them up, the remainder, with insular reluctance, preferring the less effective vacuum brake.From 1880 Westinghouse was purchasing patents relating to means of interlocking railway signals and points; he combined them with his own inventions to produce a complete signalling system. The first really practical power signalling scheme, installed in the USA by Westinghouse in 1884, was operated pneumatically, but the development of railway signalling required an awareness of the powers of electricity, and it was probably this that first led Westinghouse to become interested in electrical processes and inventions. The Westinghouse Electric Company was formed in 1886: it pioneered the use of electricity distribution systems using high-voltage single-phase alternating current, which it developed from European practice. Initially this was violently opposed by established operators of direct-current distribution systems, but eventually the use of alternating current became widespread.[br]Principal Honours and DistinctionsLégion d'honneur. Order of the Crown of Italy. Order of Leopold.BibliographyWestinghouse took out some 400 patents over forty-eight years.Further ReadingH.G.Prout, 1922, A Life of "George Westinghouse", London (biography inclined towards technicalities).F.E.Leupp, 1918, George Westinghouse: His Life and Achievements, Boston (London 1919) (biography inclined towards Westinghouse and his career).J.F.Stover, 1961, American Railroads, Chicago: University of Chicago Press, pp. 152–4.PJGR -
20 Sommeiller, Germain
[br]b. 15 March 1815 St Jeoire, Haute-Savoie, Franced. 11 July 1874 St Jeoire, Haute-Savoie, France[br]French civil engineer, builder of the Mont Cénis tunnel in the Alps.[br]Having been employed in railway construction in Sardinia, Sommeiller was working as an engineer at the University of Turin when, in 1857, he was commissioned to take charge of the French part in the construction of the 13 km (8 mile) tunnel under Mont Cénis between Modane, France, and Bardonècchia, Italy. This was to be the first long-distance tunnel through rock in the Alps driven from two headings with no intervening shafts; it is a landmark in the history of technology thanks to the use of a number of pioneering techniques in its construction.As steam power was unsuitable because of the difficulties in transmitting power over long distances, Sommeiller developed ideas for the use of compressed-air machinery, first mooted by Daniel Colladon of Geneva in 1855; this also solved the problems of ventilation. He also decided to adapt the principle of his compressed-air ram to supply extra power to locomotives on steep gradients. In 1860 he took out a patent in France for a combined compressor-pump, and in 1861 his first percussion drill, mounted on a carriage, was introduced. Although it was of little use at first, Sommeiller improved his drill through trial and error, including the use of the diamond drill-crowns patented by Georges Auguste Leschot in 1862. The invention of dynamite by Alfred Nobel contributed decisively to the speedy completion of the tunnel by the end of 1870, several years ahead of schedule.[br]Further ReadingA.Schwenger-Lerchenfeld, 1884, Die Überschienung der Alpen, Berlin; reprint 1983, Berlin: Moers, pp. 60–77 (explains how the use of compressed air for rock drilling in the Mont Cénis tunnel was a complex process of innovations to which several engineers contributed).W.Bersch, 1898, Mit Schlägel und Eisen, Vienna: reprint 1985 (with introd. by W.Kroker), Dusseldorf, pp. 242–4.WK
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