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1 Todd
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2 Todd
m.Todd, Sir Alexander Robertus Todd. -
3 todd
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4 Todd, Leonard Jennett
SUBJECT AREA: Steam and internal combustion engines[br]fl. 1885 London, England[br]English (?) patentee of steam engines incorporating the uniflow principle.[br]In a uniflow system, the steam enters a steam engine cylinder at one end, pushes the pistons along, and exhausts through a ring of ports at the centre of the cylinder that are uncovered by movement of the piston. The piston is returned by steam then entering the other end of the cylinder, moving the piston arrangement back, and again making its exit through the central ports. This gave the thermodynamic advantage of the cylinder ends remaining hot and the centre colder with reheating the ends of the cylinder through compression of the residual steam. The principle was first patented by Jacob Perkins in England in 1827 and was tried in America in 1856.Little is known about Todd. The addresses given in his patent specifications show that he was living first at South Hornsey and then Stoke Newington, both in Middlesex (now in London). No obituary notices have been traced. He took out a patent in 1885 for a "terminal exhaust engine" and followed this with two more in 1886 and 1887. His aim was to "produce a double acting steam engine which shall work more efficiently, which shall produce and maintain within itself an improved gradation of temperature extending from each of its two Hot Inlets to its common central Cold Outlet". His later patents show the problems he faced with finding suitable valve gears and the compression developing during the return stroke of the piston. It was this last problem, particularly when starting a condensing engine, that probably defeated him through excessive compression pressures. There is some evidence that he hoped to apply his engines to railway locomotives.[br]Bibliography1885, British patent no. 7,301 (terminal exhaust engine). 1886, British patent no. 2,132.1887, British patent no. 6,666.Further ReadingR.L.Hills, 1989, Power from Steam. A History of the Stationary Steam Engine, Cambridge University Press (provides the fullest discussion of his patents). H.W.Dickinson, 1938, A Short History of the Steam Engine, Cambridge University Press.J.Stumpf, 1912, The Una-Flow Steam Engine, Munich: R.Oldenbourg.RLH -
5 Todd Education Computer Services Company
Trademark term: TECSУниверсальный русско-английский словарь > Todd Education Computer Services Company
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6 Todd Gaynor Quartet
Music: TGQУниверсальный русско-английский словарь > Todd Gaynor Quartet
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7 Todd Michael Johnson
Names and surnames: TMJУниверсальный русско-английский словарь > Todd Michael Johnson
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8 Todd Nelon Quartet
Music: TNQУниверсальный русско-английский словарь > Todd Nelon Quartet
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9 Todd Shipyards Corporation
NYSE. TODУниверсальный русско-английский словарь > Todd Shipyards Corporation
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10 Todd's Jeep
Jocular: TJ -
11 Todd, Holloway, & Ward, P.C.
Law: THWУниверсальный русско-английский словарь > Todd, Holloway, & Ward, P.C.
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12 малотоксичная газовая горелка фирмы TODD Combustion
малотоксичная газовая горелка фирмы TODD Combustion
Со ступенчатой подачей воздуха, регулируемой подачей топлива и воздуха в топку котла; расход воздуха измеряется с помощью пьезометрического кольца, установленного в воздушном канале.
[А.С.Гольдберг. Англо-русский энергетический словарь. 2006 г.]Тематики
EN
Русско-английский словарь нормативно-технической терминологии > малотоксичная газовая горелка фирмы TODD Combustion
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13 Tony Not Todd
Jocular: TNT -
14 Wallace, Roberts, & Todd, L. L. C.
Trademark term: WRTУниверсальный русско-английский словарь > Wallace, Roberts, & Todd, L. L. C.
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15 Тодд
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16 Тодд
Русско-английский словарь по прикладной математике и механике > Тодд
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17 أجسام تود
Todd bodies -
18 مرق تود-هيويت
Todd-Hewitt broth -
19 (постэпилептический )паралич Тодда
Большой русско-английский медицинский словарь > (постэпилептический )паралич Тодда
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20 (постэпилептический )паралич Тодда
Большой русско-английский медицинский словарь > (постэпилептический )паралич Тодда
См. также в других словарях:
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Todd-AO — est la marque commerciale d un procédé exploitant un format de pellicule de film 70 mm. La définition inégalée jusqu à sa création a été exploitée dans certaines grandes salles de cinéma à partir des années 1950. L acronyme provient du nom de… … Wikipédia en Français
Todd — Todd, Grafschaft im Staate Kentucky (Nordamerika), an den Staat Tennessee grenzend, 16 QM.; von dem Pond River u. den Elk, Whippoorwill u. Clifty Creeks durchflossen, hügelig u. fruchtbar; Producte: Mais, Hafer, Tabak, Rindvieh, Steinkohlen; die… … Pierer's Universal-Lexikon
Todd — Todd, Michael Todd, sir Alexander Robertus … Enciclopedia Universal
Todd — Todd1 [täd] n. a masculine name Todd2 [täd] Alexander (Robertus) Baron Todd of Trumpington 1907 97; Brit. organic chemist … English World dictionary
Todd — m English: transferred use of the surname, which was originally a nickname from an English dialect word meaning ‘fox’ … First names dictionary
Todd — Todd, Sweeney a character in a 19th century British play whose job is to cut men s hair, but who murders his customers and has them made into meat ↑pies. He is known as the demon barber of Fleet Street … Dictionary of contemporary English
Todd — Anglais ou écossais, le nom désigne le renard, surnom lié à la ruse ou à la couleur des cheveux (moyen anglais du Nord tod = renard) … Noms de famille