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1 required burning area
Космонавтика: потребная поверхность горения -
2 required burning area
Englsh-Russian aviation and space dictionary > required burning area
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3 required burning area
потребная ( требуемая) площадь горения ( шашки твердого топлива)English-russian astronautics dictionary > required burning area
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4 required burning area
n потрібна поверхня горінняEnglish-Ukrainian military dictionary > required burning area
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5 area
площадь; участок; пространство; область, район, зона; поверхность"gold-plated" area of instrument panel — наиболее легко обозреваемый (лётчиком) участок приборной доски
area of high pressure — метео. область высокого давления, антициклон
area of low pressure — метео. область низкого давления, циклон
assembly and test area — ркт. сборочно-проверочная площадка
booster (engine) disposal area — район сброса [падения] стартовых двигателей [ускорителей]
booster (engine) impact area — район сброса [падения] стартовых двигателей [ускорителей]
disc area of main rotor — верт. площадь диска несущего винта
exhaust jet area — площадь выходного сечения сопла; площадь сечения струи истекающих газов
floor area between the ramps — площадь пола грузовой кабины между (передним и задним) грузовыми трапами
guidance and control area — ркт. площадка управления пуском и наведением
— fin area— VFR area -
6 Booth, Henry
[br]b. 4 April 1789 Liverpool, Englandd. 28 March 1869 Liverpool, England[br]English railway administrator and inventor.[br]Booth followed his father as a Liverpool corn merchant but had great mechanical aptitude. In 1824 he joined the committee for the proposed Liverpool \& Manchester Railway (L \& MR) and after the company obtained its Act of Parliament in 1826 he was appointed Treasurer.In 1829 the L \& MR announced a prize competition, the Rainhill Trials, for an improved steam locomotive: Booth, realizing that the power of a locomotive depended largely upon its capacity to raise steam, had the idea that this could be maximized by passing burning gases from the fire through the boiler in many small tubes to increase the heating surface, rather than in one large one, as was then the practice. He was apparently unaware of work on this type of boiler even then being done by Marc Seguin, and the 1791 American patent by John Stevens. Booth discussed his idea with George Stephenson, and a boiler of this type was incorporated into the locomotive Rocket, which was built by Robert Stephenson and entered in the Trials by Booth and the two Stephensons in partnership. The boiler enabled Rocket to do all that was required in the trials, and far more: it became the prototype for all subsequent conventional locomotive boilers.After the L \& MR opened in 1830, Booth as Treasurer became in effect the general superintendent and was later General Manager. He invented screw couplings for use with sprung buffers. When the L \& MR was absorbed by the Grand Junction Railway in 1845 he became Secretary of the latter, and when, later the same year, that in turn amalgamated with the London \& Birmingham Railway (L \& BR) to form the London \& North Western Railway (L \& NWR), he became joint Secretary with Richard Creed from the L \& BR.Earlier, completion in 1838 of the railway from London to Liverpool had brought problems with regard to local times. Towns then kept their own time according to their longitude: Birmingham time, for instance, was 7¼ minutes later than London time. This caused difficulties in railway operation, so Booth prepared a petition to Parliament on behalf of the L \& MR that London time should be used throughout the country, and in 1847 the L \& NWR, with other principal railways and the Post Office, adopted Greenwich time. It was only in 1880, however, that the arrangement was made law by Act of Parliament.[br]Bibliography1835. British patent no. 6,814 (grease lubricants for axleboxes). 1836. British patent no. 6,989 (screw couplings).Booth also wrote several pamphlets on railways, uniformity of time, and political matters.Further ReadingH.Booth, 1980, Henry Booth, Ilfracombe: Arthur H.Stockwell (a good full-length biography, the author being the great-great-nephew of his subject; with bibliography).R.E.Carlson, 1969, The Liverpool \& Manchester Railway Project 1821–1831, Newton Abbot: David \& Charles.PJGR -
7 Cecil, Revd William
SUBJECT AREA: Steam and internal combustion engines[br]b. 1792 Englandd. 1882 England[br]English inventor of a gas vacuum engine.[br]Admitted to Magdalene College, Cambridge, in 1810, Cecil was elected a Fellow in 1814. The son of an Anglican priest, he was himself ordained in 1820; he devoted his life to the Church of England, but he also showed a commendable aptitude for technical matters. His paper on a means of motive power, presented to the Cambridge Philosophical Society in 1820, created immense interest. A working model of his engine, using hydrogen as fuel, was demonstrated during the presentation. The operating principle required that a vacuum be produced in a closed cylinder by quenching a burning flame, the pressure difference between the vacuum and atmosphere then being used to produce the working stroke. Cecil's engine was never manufactured in any number, but the working principle was adapted by other pioneers, namely Samuel Brown, in 1824, and, more successfully, Otto- Langen in 1867.[br]Bibliography1820, "On the application of hydrogen gas to produce a moving power in machinery", Transactions of the Cambridge Philosophical Society 1(2):217–39.Further ReadingJohn Venn, Alumni Cantabrienses Part II (1752–1900): p. 567.KAB -
8 Kirtley, Matthew
[br]b. 6 February 1813 Tanfield, Co. Durham, Englandd. 24 May 1873 Derby, England[br]English locomotive engineer, responsible for the introduction of the brick arch in fireboxes.[br]At the age of 13, Kirtley was a pupil of George Stephenson on the Stockton \& Darlington Railway. He subsequently became a fireman and then a driver of locomotives: he drove the first locomotive to enter London on the London \& Birmingham Railway. When the Midland Railway was formed in 1844 he was appointed Locomotive Superintendent. Ever since the Act of Parliament for the Liverpool \& Manchester Railway had required that its locomotives consume their own smoke (probably as a reaction to the clouds of black smoke emitted by steamboats at Liverpool), the usual fuel for locomotives had been coke. Early multi-tubular boilers, with their small fireboxes and short tubes, were in any case unsuitable for coal because they did not allow the burning gases sufficient time to combust properly. Many engineers attempted to solve the problem with weird and complex boiler designs. Kirtley and Charles Markham, who was working under him, succeeded by inserting a deflector plate above the firedoor and an arch of firebricks in the front of the firebox: this helped to maintain the high temperatures needed and lengthened the route by which the gases travelled. The brick arch and deflector plate became the usual components of locomotive fireboxes, and expensive coke was replaced as fuel by coal.[br]Further ReadingJ.Marshall, 1978, A Biographical Dictionary of Railway Engineers, Newton Abbot: David \& Charles.E.L.Ahrons, 1927, The British Steam Railway Locomotive 1825–1925, London: The Locomotive Publishing Co. (describes the brick arch and Kirtley's locomotives).PJGR -
9 Ransome, Frederick
[br]b. 18 June 1818 Rushmere, Suffolk, Englandd. 19 April 1893 London, England[br]English engineer and inventor of a type of artificial stone.[br]Frederick Ransome was the son of James Ransome (1782–1849) and grandson of Robert Ransome, founder of the well-known Ipswich firm of engineers. He did not become a partner in the family firm, but devoted his life to experiments to develop an artificial stone. These experiments were recorded in a paper which he presented to the Institution of Civil Engineers in 1848 and in a long series of over thirty patents dating from 1844. The material so formed was a sandstone, the particles of which were bonded together by a silicate of lime. It could be moulded into any required form while in its initial soft state, and when hard was suitable for surface-dressing or carving. It was used for many public buildings, but time proved it unsuitable for outside work. Ransome also used his artificial stone to make grinding wheels by incorporating emery powder in the mixture. These were found to be much superior to those made of natural stone. Another use of the artificial stone was in a porous form which could be used as a filter. In later years Ransome turned his attention to the manufacture of Portland cement and of a cheaper substitute incorporating blast-furnace slag. He also invented a rotary kiln for burning the cement, the first of these being built in 1887. It was 26 ft (7.9 m) long and 5 ft (1.5 m) in diameter; although reasonably successful, the development of such kilns of much greater length was carried out in America rather than England. Ransome was elected an Associate of the Institution of Civil Engineers in 1848 and served as an Associate of[br]Bibliography1848, "On the manufacture of artificial stone with a silica base", Minutes of the Proceedings of the Institution of Civil Engineers 7:57.RTS -
10 Roebuck, John
SUBJECT AREA: Chemical technology[br]b. 1718 Sheffield, Englandd. 17 July 1794[br]English chemist and manufacturer, inventor of the lead-chamber process for sulphuric acid.[br]The son of a prosperous Sheffield manufacturer, Roebuck forsook the family business to pursue studies in medicine at Edinburgh University. There he met Dr Joseph Black (1727–99), celebrated Professor of Chemistry, who aroused in Roebuck a lasting interest in chemistry. Roebuck continued his studies at Leyden, where he took his medical degree in 1742. He set up in practice in Birmingham, but in his spare time he continued chemical experiments that might help local industries.Among his early achievements was his new method of refining gold and silver. Success led to the setting up of a large laboratory and a reputation as a chemical consultant. It was at this time that Roebuck devised an improved way of making sulphuric acid. This vital substance was then made by burning sulphur and nitre (potassium nitrate) over water in a glass globe. The scale of the process was limited by the fragility of the glass. Roebuck substituted "lead chambers", or vessels consisting of sheets of lead, a metal both cheap and resistant to acids, set in wooden frames. After the first plant was set up in 1746, productivity rose and the price of sulphuric acid fell sharply. Success encouraged Roebuck to establish a second, larger plant at Prestonpans, near Edinburgh. He preferred to rely on secrecy rather than patents to preserve his monopoly, but a departing employee took the secret with him and the process spread rapidly in England and on the European continent. It remained the standard process until it was superseded by the contact process towards the end of the nineteenth century. Roebuck next turned his attention to ironmaking and finally selected a site on the Carron river, near Falkirk in Scotland, where the raw materials and water power and transport lay close at hand. The Carron ironworks began producing iron in 1760 and became one of the great names in the history of ironmaking. Roebuck was an early proponent of the smelting of iron with coke, pioneered by Abraham Darby at Coalbrookdale. To supply the stronger blast required, Roebuck consulted John Smeaton, who c. 1760 installed the first blowing cylinders of any size.All had so far gone well for Roebuck, but he now leased coal-mines and salt-works from the Duke of Hamilton's lands at Borrowstonness in Linlithgow. The coal workings were plagued with flooding which the existing Newcomen engines were unable to overcome. Through his friendship with Joseph Black, patron of James Watt, Roebuck persuaded Watt to join him to apply his improved steam-engine to the flooded mine. He took over Black's loan to Watt of £1,200, helped him to obtain the first steam-engine patent of 1769 and took a two-thirds interest in the project. However, the new engine was not yet equal to the task and the debts mounted. To satisfy his creditors, Roebuck had to dispose of his capital in his various ventures. One creditor was Matthew Boulton, who accepted Roebuck's two-thirds share in Watt's steam-engine, rather than claim payment from his depleted estate, thus initiating a famous partnership. Roebuck was retained to manage Borrowstonness and allowed an annuity for his continued support until his death in 1794.[br]Further ReadingMemoir of John Roebuck in J.Roy. Soc. Edin., vol. 4 (1798), pp. 65–87.S.Gregory, 1987, "John Roebuck, 18th century entrepreneur", Chem. Engr. 443:28–31.LRD
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