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1 Parsons
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2 Parsons
m.Parsons, Talcott Parsons. -
3 Parsons
Trademark term: PP -
4 Parsons, Sir Charles Algernon
[br]b. 13 June 1854 London, Englandd. 11 February 1931 on board Duchess of Richmond, Kingston, Jamaica[br]English eingineer, inventor of the steam turbine and developer of the high-speed electric generator.[br]The youngest son of the Earl of Rosse, he came from a family well known in scientific circles, the six boys growing up in an intellectual atmosphere at Birr Castle, the ancestral home in Ireland, where a forge and large workshop were available to them. Charles, like his brothers, did not go to school but was educated by private tutors of the character of Sir Robert Ball, this type of education being interspersed with overseas holiday trips to France, Holland, Belgium and Spain in the family yacht. In 1871, at the age of 17, he went to Trinity College, Dublin, and after two years he went on to St John's College, Cambridge. This was before the Engineering School had opened, and Parsons studied mechanics and mathematics.In 1877 he was apprenticed to W.G.Armstrong \& Co. of Elswick, where he stayed for four years, developing an epicycloidal engine that he had designed while at Cambridge. He then moved to Kitson \& Co. of Leeds, where he went half shares in a small experimental shop working on rocket propulsion for torpedoes.In 1887 he married Katherine Bethell, who contracted rheumatic fever from early-morning outdoor vigils with her husband to watch his torpedo experiments while on their honeymoon! He then moved to a partnership in Clarke, Chapman \& Co. at Gateshead. There he joined the electrical department, initially working on the development of a small, steam-driven marine lighting set. This involved the development of either a low-speed dynamo, for direct coupling to a reciprocating engine, or a high-speed engine, and it was this requirement that started Parsons on the track of the steam turbine. This entailed many problems such as the running of shafts at speeds of up to 40,000 rpm and the design of a DC generator for 18,000 rpm. He took out patents for both the turbine and the generator on 23 April 1884. In 1888 he dissolved his partnership with Clarke, Chapman \& Co. to set up his own firm in Newcastle, leaving his patents with the company's owners. This denied him the use of the axial-flow turbine, so Parsons then designed a radial-flow layout; he later bought back his patents from Clarke, Chapman \& Co. His original patent had included the use of the steam turbine as a means of marine propulsion, and Parsons now set about realizing this possibility. He experimented with 2 ft (61 cm) and 6 ft (183 cm) long models, towed with a fishing line or, later, driven by a twisted rubber cord, through a single-reduction set of spiral gearing.The first trials of the Turbinia took place in 1894 but were disappointing due to cavitation, a little-understood phenomenon at the time. He used an axial-flow turbine of 2,000 shp running at 2,000 rpm. His work resulted in a far greater understanding of the phenomenon of cavitation than had hitherto existed. Land turbines of up to 350 kW (470 hp) had meanwhile been built. Experiments with the Turbinia culminated in a demonstration which took place at the great Naval Review of 1897 at Spithead, held to celebrate Queen Victoria's Diamond Jubilee. Here, the little Turbinia darted in and out of the lines of heavy warships and destroyers, attaining the unheard of speed of 34.5 knots. The following year the Admiralty placed their first order for a turbine-driven ship, and passenger vessels started operation soon after, the first in 1901. By 1906 the Admiralty had moved over to use turbines exclusively. These early turbines had almost all been direct-coupled to the ship's propeller shaft. For optimum performance of both turbine and propeller, Parsons realized that some form of reduction gearing was necessary, which would have to be extremely accurate because of the speeds involved. Parsons's Creep Mechanism of 1912 ensured that any errors in the master wheel would be distributed evenly around the wheel being cut.Parsons was also involved in optical work and had a controlling interest in the firm of Ross Ltd of London and, later, in Sir Howard Grubb \& Sons. He he was an enlightened employer, originating share schemes and other benefits for his employees.[br]Principal Honours and DistinctionsKnighted. Order of Merit 1927.Further ReadingA.T.Bowden, 1966, "Charles Parsons: Purveyor of power", in E.G.Semler (ed.), The Great Masters. Engineering Heritage, Vol. II, London: Institution of Mechanical Engineers/Heinemann.IMcNBiographical history of technology > Parsons, Sir Charles Algernon
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5 Parsons Fluor Daniel
Универсальный русско-английский словарь > Parsons Fluor Daniel
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6 Parsons Fluor Daniel joint venture
Sakhalin energy glossary: PFDУниверсальный русско-английский словарь > Parsons Fluor Daniel joint venture
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7 Parsons Paper Company
Trademark term: PPCУниверсальный русско-английский словарь > Parsons Paper Company
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8 Parsons Resource and Information System Manager
Chemical weapons: PRISMУниверсальный русско-английский словарь > Parsons Resource and Information System Manager
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9 Parsons network
Chemical weapons: PARNET -
10 Parsons, Kansas
Airports: PPF -
11 parsons overseas company in Kazakhstan
Oil: POCKУниверсальный русско-английский словарь > parsons overseas company in Kazakhstan
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12 the Ralph M. Parsons company [Пасадена, шт. Калифорния]
Chemical weapons: The Ralph M. Parsons Company [Pasadena, CA] (полное название компании Парсонс)Универсальный русско-английский словарь > the Ralph M. Parsons company [Пасадена, шт. Калифорния]
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13 Dyxtra Parsons Coefficient
Oilfield: VDPУниверсальный русско-английский словарь > Dyxtra Parsons Coefficient
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14 Ralph M. Parsons Company
Trademark term: RMPУниверсальный русско-английский словарь > Ralph M. Parsons Company
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15 The Ralph M. Parsons Company [Pasadena, CA]
Chemical weapons: RMPУниверсальный русско-английский словарь > The Ralph M. Parsons Company [Pasadena, CA]
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16 Парсонс
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17 парна реактивна турбина
parsons turbineparsons turbinesБългарски-Angleščina политехнически речник > парна реактивна турбина
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18 парсонс
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19 داء بارسون
Parsons disease -
20 Кашаган Девелопмент Проджект Контракторз
1) Oil: Kashagan development project contractors( a joint venture between fluor daniel and parsons) (СП между Флюор Даниэл и Парсонз)2) Caspian: KDPC (Kashagan Development Project Contractors, a joint venture between Fluor Daniel and Parsons - http://www.norma-tm.ru/KDPC%20Glossary_revised%20by%20NIPI%2021.03.05.html)Универсальный русско-английский словарь > Кашаган Девелопмент Проджект Контракторз
См. также в других словарях:
Parsons — ist der Ortsname folgender Orte in den USA: Parsons (Alabama) Parsons (Kansas) Parsons (Mississippi) Parsons (Missouri) Parsons (Pennsylvania) Parsons (Tennessee) Parsons (West Virginia) Parsons ist der Familienname folgender Personen: Alan… … Deutsch Wikipedia
PARSONS (T.) — PARSONS TALCOTT (1902 1979) Professeur à l’université Harvard, Talcott Parsons est l’un des plus grands théoriciens de la sociologie contemporaine. Sa démarche scientifique fut initialement influencée par les travaux de l’économiste anglais… … Encyclopédie Universelle
Parsons — Parsons, KS U.S. city in Kansas Population (2000): 11514 Housing Units (2000): 5359 Land area (2000): 10.361710 sq. miles (26.836705 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 10.361710 sq. miles (26.836705 … StarDict's U.S. Gazetteer Places
Parsons — [ pɑːsnz], 1) Sir Charles Algernon, britischer Ingenieur, * London 13. 6. 1854, ✝ auf einer Reise nach den Westindischen Inseln 11. 2. 1931; erfand die mehrstufige Überdruck Dampfturbine (Parsonsturbine, 1884 gebaut, 4 kW), bei der das… … Universal-Lexikon
Parsons — Parsons, Talcott Parsons, sir Charles Algernon * * * (as used in expressions) Burkitt, Denis P(arsons) Parsons, Elsie Clews Parsons, Sir Charles Algernon Parsons, Talcott Rosse, William Parsons, 3 conde de … Enciclopedia Universal
PARSONS (G.) — Geoffrey PARSONS 1929 1995 Accompagnateur hors pair, le pianiste australien Geoffrey Parsons s’était imposé comme le digne successeur de Gerald Moore aux côtés des plus grands chanteurs de son temps et savait transformer un récital de mélodies ou … Encyclopédie Universelle
Parsons, KS — U.S. city in Kansas Population (2000): 11514 Housing Units (2000): 5359 Land area (2000): 10.361710 sq. miles (26.836705 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 10.361710 sq. miles (26.836705 sq. km)… … StarDict's U.S. Gazetteer Places
Parsons, TN — U.S. city in Tennessee Population (2000): 2452 Housing Units (2000): 1205 Land area (2000): 3.908635 sq. miles (10.123319 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 3.908635 sq. miles (10.123319 sq. km)… … StarDict's U.S. Gazetteer Places
Parsons, WV — U.S. city in West Virginia Population (2000): 1463 Housing Units (2000): 731 Land area (2000): 1.097920 sq. miles (2.843599 sq. km) Water area (2000): 0.106064 sq. miles (0.274704 sq. km) Total area (2000): 1.203984 sq. miles (3.118303 sq. km)… … StarDict's U.S. Gazetteer Places
Parsons [1] — Parsons (spr. parß ns), Stadt im nordamerikan. Staate Kansas, Grafschaft Labette, nahe dem Zusammenfluß des Big und Little Labette, Bahnknotenpunkt, mit Kohlengruben, großen Eisenbahn und Maschinenwerkstätten, Getreidehandel und (1900) 7682 Einw … Meyers Großes Konversations-Lexikon
Parsons [2] — Parsons, William, Astronom, s. Rosse … Meyers Großes Konversations-Lexikon