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1 technical breakdown
nTELECOM fallo técnico m, interrupción en el servicio técnico f -
2 technical
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3 arc fault
- "дуговая" неисправность
"дуговая" неисправность
Неисправность, приводящая к возникновению дуги.
[Интент]Параллельные тексты EN-RU
An arc fault occurs when there is a reduction in the dielectric strength of the insulating means (air, in LV switchboards) interposed between two or more conducting elements at different potential.
The arc is generated at the moment when, due to the high ionization of the air, there is a breakdown of the dielectric of the medium and the consequent flow of the current through it.
In an arc fault the highest stresses are of thermal type and proportional to RaI2 owing to the high value taken by the arc resistance Ra; this because the fault current flows in a medium which is always insulating, even if extremely ionized.
Such stresses manifest themselves essentially in the form of:
• high thermal gradients caused by the quick and intense rise in the air temperature;
• high pressure gradients in the form of pressure wave;
• high ionization of the air with consequent reduction of its insulating strength.
Generally speaking, in a LV assembly designed and tested according to the Standard IEC 60439-1 an arc fault is not very likely to occur; however, should it occur, the consequences would be extremely harmful to both the equipment as well as the personnel (see Chapters 2.2 and 2.3).
The causes of an arc fault can be both technical as well as non technical; among the latter the most frequent are the following:
• personnel errors, above all during maintenance operations;
• installation operations not sufficiently accurate;
• inadequate maintenance, above all in the case of severe environmental conditions.
Among the technical causes of an arc fault in a LV assembly the following ones are to be remembered:
• breakdown of the insulation essentially in the proximity of the supports of the busbars and of the plug-in contacts of the withdrawable units (75% of cases);
• overvoltages generating disruptive discharges between the points at minimum clearances (15% of cases);
• constructional defects of the apparatus (10% of cases).
[ABB]К «дуговой» неисправности, относится неисправность, обусловленная уменьшением электрической прочности изолирующей среды (воздуха в НКУ) между двумя или более токоведущими частями, находящимися под разными электрическими потенциалами.
Дуга образуется в тот момент, когда вследствие высокой ионизации воздуха происходит пробой изолирующей среды, вследствие чего через нее начинает протекать электрический ток.
Проявлением дуговой неисправности, является тепловое воздействие, пропорциональное RaI2 и достигающее большого значения вследствие большого сопротивления дуги Ra.
Дело в том, что ток дуги протекает через среду, которая всегда является изолирующей, пусть даже и чрезвычайно ионизированной.
Указанные воздействия очевидны сами по себе особенно в форме:
• теплового градиента температуры, вызванного быстрым и интенсивным подъемом температуры воздуха;
• высоким градиентом давления в форме волны давления;
• высокой ионизацией воздуха с последующим уменьшением электрической прочности.
Вообще говоря, в НКУ, разработанных и испытанных в соответствии с требованиями стандарта МЭК 60439-1 «дуговая» неисправность маловероятна. Однако, если дуга все таки возникнет, ее последствия буду чрезвычайно тяжелыми как для оборудования, так и для персонала (см. п. 2.2 и 2.3).
Причина дуговой неисправности может носить как технический, так и нетехнический характер. Среди последних наиболее часто возникают следующие:
• ошибки персонала, совершаемые главным образом во время технического обслуживания;
• недостаточно аккуратное выполнение монтажа;
• ненадлежащее техническое обслуживание, главным образом при эксплуатации НКУ в тяжелых условиях окружающей среды.
Среди технических причин дуговой неисправности в НКУ необходимо помнить о следующих:
• пробой изоляции, особенно вблизи опор шин и втычных контактов выдвижных частей НКУ (75 % случаев);
• перенапряжения, вызываемые разрушительными электрическими разрядами между точками с минимальными зазорами (15 % случаев);
• конструктивные дефекты аппаратуры (10 % случаев).
[Перевод Интент]Тематики
- НКУ (шкафы, пульты,...)
EN
Англо-русский словарь нормативно-технической терминологии > arc fault
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4 failure
1. авария; повреждение; неисправность; отказ в работе3. разрушение; обрушение; обвал; оседание; сползание
* * *
2. разрушение; аварияto accelerate the failure — ускорять появление отказа;
to carry failure to — 1. приводить к отказу; 2. доводить до разрушения (при испытаниях)
to catch a failure — обнаруживать отказ;
to cause to failure — 1. приводить к отказу; 2. доводить до разрушения (при испытаниях);
to discard upon failure — браковать при появлении отказа;
to recover from failure — устранять неисправность;
* * *
1. авария, повреждение; отказ ( оборудования), выход из строя2. обрушение, оседание ( пород); сползание
* * *
1) отказ (); выход из строя; повреждение; поломка; неисправность, несрабатывание; сбой2) разрушение; авария3) обрушение; обвал ( породы)•failure after preventive maintenance — отказ после профилактического технического обслуживания;
failure before replacement — отказ () накануне замены;
failure by bursting from internal pressure — разрушение ( колонны труб) от разрыва под действием внутреннего давления;
failure by collapse from external pressure — разрушение ( колонны труб) от разрыва под действием внешнего давления;
failure in tension — разрушение при растяжении;
failure in use — отказ при эксплуатации, эксплуатационный отказ;
failure requiring overhaul — поломка, требующая капитального ремонта;
failures per million hours — отказов за миллион часов работы;
to accelerate the failure — ускорять появление отказа;
to catch a failure — обнаруживать отказ;
to discard upon failure — браковать при появлении отказа;
to recover from failure — устранять неисправность;
to repair a failure — устранять неисправность;
- failure of hose connectionfailure under tension — разрушение ( колонны труб) от растяжения;
- failure of normal category
- failure of performance
- abnormal test failure
- abnormally early failure
- active failure
- actual failure
- additional failure
- adolescent failure
- aging failure
- allowable failure
- anomalous failure
- anticipated failure
- apparent failure
- artificial failure
- assignable cause failure
- associated failure
- associative failure
- assumed failure
- avoidable failure
- basic failure
- bench-test failure
- bending failure
- bond failure
- breakdown failure
- break-in failure
- brittle failure
- burn-in failure
- casing failure
- catastrophic failure
- cause undetermined failure
- chance failure
- combined failure
- commanded failure
- common-cause failure
- compensating failure
- complete failure
- component failure
- component-compensating failure
- component-dependent failure
- component-independent failure
- component-partial failure
- compression failure
- conditional failure
- conditionally detectable failure
- consequential failure
- contributory failure
- corollary failure
- critical failure
- damage failure
- degradation failure
- dependent failure
- depot-repair-type failure
- derrick failure
- design-deficiency failure
- design-error failure
- destruction failure
- destructive failure
- deterioration failure
- disabling failure
- disastrous failure
- distortion failure
- dominant failure
- dominating failure
- dormant failure
- double failure
- downhole failure
- drill string failure
- drilling-bit failure
- dynamic failure
- earliest failure
- early-life failure
- embryonic failure
- emergency failure
- end failure
- endurance failure
- engine failure
- environmental failure
- equipment failure
- essential failure
- eventual failure
- exogenous failure
- explicit failure
- exponential failure
- externally-caused failure
- fabrication failure
- fatal failure
- fatigue failure
- fictitious failure
- field failure
- field-test failure
- foolish failure
- forced failure
- fracture failure
- functional failure
- generic failure
- gradual failure
- gross failure
- handling failure
- hard failure
- hazardous failure
- hidden failure
- human-initiated failure
- human-involved failure
- immature failure
- immediate failure
- imminent failure
- impact compressive failure
- impending failure
- implicit failure
- inadvertent failure
- incipient failure
- independent failure
- induced failure
- infancy failure
- initial failure
- inoperative failure
- in-service failure
- insignificant failure
- inspection failure
- instability failure
- intermittent failure
- internal failure
- intervening failure
- in-the-field failure
- intrinsic failure
- in-warranty failure
- irreversible failure
- last-thread failure
- late failure
- latent failure
- life failure
- local failure
- low-limit failure
- maintenance failure
- major failure
- malfunction failure
- marginal failure
- mechanical failure
- minor failure
- mishandling failure
- misuse failure
- monotone failure
- most remote failure
- multiunit failure
- near failure
- nonbasic failure
- noncatastrophic failure
- noncritical failure
- nondetectable failure
- nonfatal failure
- nonfunctional failure
- nonrandom failure
- nonreliability failure
- nonrepairable failure
- observed failure
- obsolete parts failure
- oncoming failure
- operating failures
- operational failure
- operative failure
- operator-induced failure
- ordinary failure
- out-of-tolerance failure
- overload failure
- overstress failure
- parallel failures
- parametric failure
- part failure
- partial failure
- partially depreciating failure
- passive failure
- pattern failures
- permanent failure
- persistent failure
- potential failure
- predictable failure
- premature failure
- primary failure
- progressive failure
- projected failure
- qualification failure
- random failure
- real failure
- recoverable failure
- recurrent failures
- redundant failure
- relevant failure
- reliability-type failure
- repairable failure
- repeatable failure
- repeated stress failure
- residual failure
- revealed failure
- reversal failure
- reversible failure
- rock failure
- rock compression failure
- rock plastic failure
- rogue failure
- running-in failure
- seal failure
- secondary failure
- self-avoiding failure
- self-correcting failure
- self-healing failure
- self-induced failure
- self-repairing failure
- service failure
- shear failure
- single failure
- single-point failure
- solid failure
- specification deficiency failure
- spontaneous failure
- stable failure
- stage-by-stage failure
- stochastic failure
- stress failure
- stuck-closed failure
- subsequent failure
- subsidiary failure
- sucker-rod string failure
- sudden failure
- superficial failure
- surface failure
- suspected failure
- sustained failure
- systematic failure
- technical failure
- technological failure
- temporary failure
- tensile failure
- test failure
- test-induced failure
- test-produced failure
- thread failure
- threshold failure
- time-limit failure
- time to first system failure
- top failure
- torque failure
- torsion failure
- total failure
- traceable failure
- transient failure
- trap failure
- trap sealing failure
- triple failure
- true failure
- unannounced failure
- unassigned failure
- unavoidable failure
- undetected failure
- unexpected failure
- unexplained failure
- unpredictable failure
- unrecoverable failure
- unrevealed failure
- unsafe failure
- unstable failure
- verified failure
- volatile failure
- wearout failure* * *• дефект• обвал• отказ -
5 rate
число, количество; степень; скорость; темп; норма; коэффициент; квота; производить оценку; классифицировать; подразделять на категории; аттестовыватьtracking (barrel) elevating rate — скорость наводки (ствола) в вертикальной плоскости в режиме сопровождения (цели)
tracking (barrel) traversing rate — скорость наводки (ствола) в горизонтальной плоскости в режиме сопровождения (цели)
— alert readiness rate— climbing rate— hit rate— jamming suppression rate— pitching rate— reinforcement build-up rate— replacement support rate— rolling rate— war rate— yawing rate -
6 maintenance
1) содержание; уход; текущий ремонт; техническое обслуживание машин и оборудования2) сохранение (напр. природных ресурсов)•- breakdown maintenance - concept maintenance - corrective maintenance - current maintenance - day-to-day maintenance - deferred maintenance - delivery maintenance - depot for maintenance - direct maintenance cost - errors in the maintenance - expenses for maintenance - gang maintenance - guarantee maintenance - irregular maintenance - machine maintenance - manual for technical maintenance - minimum maintenance - on-site maintenance - preventive maintenance - price maintenance - proper maintenance - routine maintenance - running maintenance - safe maintenance of construction machinery - schedule of maintenance - winter season maintenance* * *1. техническое обслуживание, ремонт2. эксплуатационные расходы- building maintenance
- construction maintenance
- highway maintenance
- pavement maintenance
- preventive maintenance
- systematic maintenance
- technical maintenance -
7 strength
1) напряжённость ( поля)2) интенсивность; уровень (напр. сигнала)3) сила (напр. осциллятора)4) вчт мощность (напр. графа)5) вчт степень (напр. обусловленности)6) прочность; предел прочности7) криптографическая стойкость, криптостойкость8) концентрация ( раствора)9) штат; численный состав; численность ( сотрудников)•- strength of casualty
- strength of disassociation
- strength of graph
- strength of group of dislocation
- strength of radiation
- strength of test
- absolute line strength
- adhesive strength
- beam strength
- bond strength
- breakdown strength
- connection strength
- contextual strength
- cryptographic strength
- design strength
- dielectric strength
- electric strength
- electric-field strength
- enhanced signal strength
- field strength
- insulating strength
- line strength
- luminescence strength
- magnetic-field strength
- oscillator strength
- pinning strength
- preference strength
- pumping strength
- radio field strength
- relative line strength
- reverberation strength
- signal strength
- sound source strength
- technical strength
- tensile strength
- tree strength
- wet strength -
8 strength
1) напряжённость ( поля)2) интенсивность; уровень (напр. сигнала)3) сила (напр. осциллятора)4) вчт. мощность (напр. графа)5) вчт. степень (напр. обусловленности)6) прочность; предел прочности7) криптографическая стойкость, криптостойкость8) концентрация ( раствора)9) штат; численный состав; численность ( сотрудников)•- adhesive strength
- beam strength
- bond strength
- breakdown strength
- connection strength
- contextual strength
- cryptographic strength
- design strength
- dielectric strength
- electric strength
- electric-field strength
- enhanced signal strength
- field strength
- insulating strength
- line strength
- luminescence strength
- magnetic-field strength
- oscillator strength
- pinning strength
- preference strength
- pumping strength
- radio field strength
- relative line strength
- reverberation strength
- signal strength
- sound source strength
- strength of association
- strength of casualty
- strength of disassociation
- strength of graph
- strength of group of dislocation
- strength of radiation
- strength of test
- technical strength
- tensile strength
- tree strength
- wet strengthThe New English-Russian Dictionary of Radio-electronics > strength
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9 insurance
n1) страхование2) страховая премия; страховой взнос
- accident insurance
- acual cost insurance
- additional insurance
- aircraft insurance
- all-in insurance
- all-loss insurance
- all-risk insurance
- annuity insurance
- automobile insurance
- automobile liability insurance
- aviation insurance
- bad debts insurance
- baggage insurance
- blanket insurance
- block insurance
- burglary insurance
- business insurance
- business interruption insurance
- capital insurance
- car insurance
- cargo insurance
- casualty insurance
- catastrophe insurance
- children's endowment insurance
- child's insurance
- civil commotion insurance
- collateral insurance
- collective insurance
- combination policy insurance
- comprehensive insurance
- compulsory insurance
- compulsory insurance against third party risks
- concurrent insurance
- construction risks insurance
- contingency insurance
- contract guarantee insurance
- cooperative insurance
- credit insurance
- credit disability insurance
- credit life insurance
- credit-related insurance
- credit risk insurance
- currency risk insurance
- current insurance
- cut-through insurance
- deposit insurance
- disability insurance
- disablement insurance
- disbursements insurance
- double insurance
- employer's liability insurance
- employment insurance
- endowment insurance
- excess insurance
- export insurance
- export credit insurance
- export risk insurance
- extended term insurance
- extra risk life insurance
- fidelity insurance
- fidelity guarantee insurance
- fire insurance
- first loss insurance
- fleet policy insurance
- floater policy insurance
- foreign investment insurance
- freight insurance
- full insurance
- full value insurance
- general insurance
- graded premium life insurance
- group insurance
- group creditor insurance
- group life insurance
- guarantee insurance
- hazard insurance
- health insurance
- home owner's policy insurance
- hospitalization insurance
- house insurance
- household insurance
- hull insurance
- index-linked insurance
- industrial insurance
- industrial life insurance
- inland transportation insurance
- inland waterways insurance
- investment insurance
- leasehold insurance
- liability insurance
- life insurance
- limited payment life insurance
- limited policy insurance
- livestock insurance
- loan insurance
- loss-on-exchange insurance
- luggage insurance
- lump-sum insurance
- maintenance insurance
- mandatory insurance
- marine insurance
- medical insurance
- mercantile open-stock burglary insurance
- miners' insurance
- money and securities insurance
- mortgage insurance
- mortgage redemption insurance
- motor insurance
- motor car insurance
- motor vehicle insurance
- motor vehicle passenger insurance
- mutual insurance
- national insurance
- obligatory insurance
- ocean insurance
- ocean marine insurance
- old age insurance
- old age and survivor insurance
- open insurance
- ordinary insurance
- ordinary life insurance
- overlapping insurance
- package insurance
- paid-up insurance
- partial insurance
- participating insurance
- partnership insurance
- personal insurance
- personal accident and sickness insurance
- personal liability insurance
- pluvial insurance
- private insurance
- private health insurance
- products guarantee insurance
- products liability insurance
- professional liability insurance
- property insurance
- property damage insurance
- provisional insurance
- public liability insurance
- real estate insurance
- reciprocal insurance
- renewable term insurance
- rent insurance
- replacement insurance
- residence contents insurance
- retirement income insurance
- riots insurance
- risk insurance
- robbery insurance
- sea insurance
- sea cargo insurance
- sickness insurance
- social insurance
- specific insurance
- state insurance
- stock insurance
- straight life insurance
- strike insurance
- subsequent insurance
- substandard insurance
- supplementary insurance
- technical risk insurance
- term insurance
- term life insurance
- theft insurance
- third party insurance
- third party liability insurance
- time insurance
- title insurance
- transit insurance
- transport insurance
- traveller's accident insurance
- unemployment insurance
- upset insurance
- voluntary insurance
- war insurance
- war risk insurance
- weather insurance
- whole life insurance
- workmen's compensation insurance
- insurance against all construction risks
- insurance against all risks
- insurance against breakage
- insurance against breakdown
- insurance against burglary and theft
- insurance against calamities
- insurance against commercial risks
- insurance against default
- insurance against depreciation
- insurance against hazards
- insurance against insolvency
- insurance against loss by redemption
- insurance against natural calamities
- insurance against natural hazards
- insurance against risk
- insurance against robbery
- insurance against third party liability
- insurance against total loss
- insurance against war risks
- insurance of building
- insurance of cargo
- insurance of credit
- insurance of freight
- insurance of goods
- insurance of merchandise
- insurance of movable property
- insurance of securities
- insurance of valuables
- insurance of a vessel
- insurance on a contingency basis
- insurance on full replacement value
- insurance on a premium basis
- insurance with limited premium
- insurance with participation in the profits
- insurance without participation in the profits
- insurance free of particular average
- accept for insurance
- arrange insurance
- back up insurance
- cancel insurance
- carry an insurance
- cover insurance
- effect insurance
- furnish insurance
- issue insurance
- make insurance
- pay the insurance
- place an insurance
- provide insurance
- reinstate an insurance
- suspend insurance
- take out an insurance
- undertake insuranceEnglish-russian dctionary of contemporary Economics > insurance
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10 maintenance
n1) поддержание, сохранение2) содержание; средства к существованию; иждивение3) техническое обслуживание и ремонт; регламентные работы6) ведение (документации)
- accounting history maintenance
- breakdown maintenance
- building maintenance
- compulsory maintenance
- contract-service maintenance
- current maintenance
- customer details maintenance
- customer limit maintenance
- databank maintenance
- day-to-day maintenance
- deferred maintenance
- direct maintenance
- equipment maintenance
- general maintenance
- general ledger maintenance
- guarantee maintenance
- history maintenance
- inadequate maintenance
- indirect maintenance
- machine maintenance
- major maintenance
- merchant account maintenance
- negligent maintenance
- off-schedule maintenance
- planned maintenance
- post-delivery maintenance
- preventive maintenance
- price maintenance
- project management maintenance
- remedial maintenance
- repairing maintenance
- resale price maintenance
- routine maintenance
- running maintenance
- scheduled maintenance
- static data maintenance
- technical maintenance
- use profile maintenance
- maintenance of accounting records
- maintenance of accounts
- maintenance of capital
- maintenance of equipment
- maintenance of highways
- maintenance of instruments
- maintenance of market share
- maintenance of membership
- maintenance of order
- maintenance of a plant
- maintenance of premises
- maintenance of stable prices
- maintenance and repair
- allow easy maintenanceEnglish-russian dctionary of contemporary Economics > maintenance
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11 breakout
1. Gen Mgta summary or breakdown of data that has been collected2. Fina rise in a security’s price above its previous highest price, or a drop below its former lowest price, taken by technical analysts to signal a continuing move in that direction -
12 Chevenard, Pierre Antoine Jean Sylvestre
SUBJECT AREA: Metallurgy[br]b. 31 December 1888 Thizy, Rhône, Franced. 15 August 1960 Fontenoy-aux-Roses, France[br]French metallurgist, inventor of the alloys Elinvar and Platinite and of the method of strengthening nickel-chromium alloys by a precipitate ofNi3Al which provided the basis of all later super-alloy development.[br]Soon after graduating from the Ecole des Mines at St-Etienne in 1910, Chevenard joined the Société de Commentry Fourchambault et Decazeville at their steelworks at Imphy, where he remained for the whole of his career. Imphy had for some years specialized in the production of nickel steels. From this venture emerged the first austenitic nickel-chromium steel, containing 6 per cent chromium and 22–4 per cent nickel and produced commercially in 1895. Most of the alloys required by Guillaume in his search for the low-expansion alloy Invar were made at Imphy. At the Imphy Research Laboratory, established in 1911, Chevenard conducted research into the development of specialized nickel-based alloys. His first success followed from an observation that some of the ferro-nickels were free from the low-temperature brittleness exhibited by conventional steels. To satisfy the technical requirements of Georges Claude, the French cryogenic pioneer, Chevenard was then able in 1912 to develop an alloy containing 55–60 per cent nickel, 1–3 per cent manganese and 0.2–0.4 per cent carbon. This was ductile down to −190°C, at which temperature carbon steel was very brittle.By 1916 Elinvar, a nickel-iron-chromium alloy with an elastic modulus that did not vary appreciably with changes in ambient temperature, had been identified. This found extensive use in horology and instrument manufacture, and even for the production of high-quality tuning forks. Another very popular alloy was Platinite, which had the same coefficient of thermal expansion as platinum and soda glass. It was used in considerable quantities by incandescent-lamp manufacturers for lead-in wires. Other materials developed by Chevenard at this stage to satisfy the requirements of the electrical industry included resistance alloys, base-metal thermocouple combinations, magnetically soft high-permeability alloys, and nickel-aluminium permanent magnet steels of very high coercivity which greatly improved the power and reliability of car magnetos. Thermostatic bimetals of all varieties soon became an important branch of manufacture at Imphy.During the remainder of his career at Imphy, Chevenard brilliantly elaborated the work on nickel-chromium-tungsten alloys to make stronger pressure vessels for the Haber and other chemical processes. Another famous alloy that he developed, ATV, contained 35 per cent nickel and 11 per cent chromium and was free from the problem of stress-induced cracking in steam that had hitherto inhibited the development of high-power steam turbines. Between 1912 and 1917, Chevenard recognized the harmful effects of traces of carbon on this type of alloy, and in the immediate postwar years he found efficient methods of scavenging the residual carbon by controlled additions of reactive metals. This led to the development of a range of stabilized austenitic stainless steels which were free from the problems of intercrystalline corrosion and weld decay that then caused so much difficulty to the manufacturers of chemical plant.Chevenard soon concluded that only the nickel-chromium system could provide a satisfactory basis for the subsequent development of high-temperature alloys. The first published reference to the strengthening of such materials by additions of aluminium and/or titanium occurs in his UK patent of 1929. This strengthening approach was adopted in the later wartime development in Britain of the Nimonic series of alloys, all of which depended for their high-temperature strength upon the precipitated compound Ni3Al.In 1936 he was studying the effect of what is now known as "thermal fatigue", which contributes to the eventual failure of both gas and steam turbines. He then published details of equipment for assessing the susceptibility of nickel-chromium alloys to this type of breakdown by a process of repeated quenching. Around this time he began to make systematic use of the thermo-gravimetrie balance for high-temperature oxidation studies.[br]Principal Honours and DistinctionsPresident, Société de Physique. Commandeur de la Légion d'honneur.Bibliography1929, Analyse dilatométrique des matériaux, with a preface be C.E.Guillaume, Paris: Dunod (still regarded as the definitive work on this subject).The Dictionary of Scientific Biography lists around thirty of his more important publications between 1914 and 1943.Further Reading"Chevenard, a great French metallurgist", 1960, Acier Fins (Spec.) 36:92–100.L.Valluz, 1961, "Notice sur les travaux de Pierre Chevenard, 1888–1960", Paris: Institut de France, Académie des Sciences.ASDBiographical history of technology > Chevenard, Pierre Antoine Jean Sylvestre
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13 Royce, Sir Frederick Henry
[br]b. 27 March 1863 Alwalton, Huntingdonshire, Englandd. 22 April 1933 West Wittering, Sussex, England.[br]English engineer and industrialist.[br]Royce was the younger son of a flour miller. His father's death forced him to earn his own living from the age of 10 selling newspapers, as a post office messenger boy, and in other jobs. At the age of 14, he became an apprentice at the Great Northern Railway's locomotive works, but was unable to complete his apprenticeship due to a shortage of money. He moved to a tool company in Leeds, then in 1882 he became a tester for the London Electric Light \& Power Company and attended classes at the City \& Guilds Technical College. In the same year, the company made him Chief Electrical Engineer for the lighting of the streets of Liverpool.In 1884, at the age of 21, he founded F.H. Royce \& Co (later called Royce Ltd, from 1894 to 1933) with a capital of £70, manufacturing arc lamps, dynamos and electric cranes. In 1903, he bought a 10 hp Deauville car which proved noisy and unreliable; he therefore designed his own car. By the end of 1903 he had produced a twocylinder engine which ran for many hundreds of hours driving dynamos; on 31 March 1904, a 10 hp Royce car was driven smoothly and silently from the works in Cooke Street, Manchester. This car so impressed Charles S. Rolls, whose London firm were agents for high-class continental cars, that he agreed to take the entire output from the Manchester works. In 1906 they jointly formed Rolls-Royce Ltd and at the end of that year Royce produced the first 40/50 hp Silver Ghost, which remained in production until 1925 when it was replaced by the Phantom and Wraith. The demand for the cars grew so great that in 1908 manufacture was transferred to a new factory in Derby.In 1911 Royce had a breakdown due to overwork and his lack of attention to taking regular meals. From that time he never returned to the works but continued in charge of design from a drawing office in his home in the south of France and later at West Wittering, Sussex, England. During the First World War he designed the Falcon, Hawk and Condor engines as well as the VI2 Eagle, all of which were liquid-cooled. Later he designed the 36.7-litre Rolls-Royce R engines for the Vickers Supermarine S.6 and S.6B seaplanes which were entered for the Schneider Trophy (which they won in 1929 and 1931, the 5.5 having won in 1927 with a Napier Lion engine) and set a world speed record of 408 mph (657 km/h) in 1931; the 1941 Griffon engine was derived from the R.Royce was an improver rather than an innovator, though he did invent a silent form of valve gear, a friction-damped slipper flywheel, the Royce carburettor and a spring drive for timing gears. He was a modest man with a remarkable memory who concentrated on perfecting the detail of every component. He married Minnie Punt, but they had no children. A bust of him at the Derby factory is captioned simply "Henry Royce, Mechanic".[br]Further ReadingR.Bird, 1995, Rolls Royce Heritage, London: Osprey.IMcNBiographical history of technology > Royce, Sir Frederick Henry
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