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2. Baker valve gear - Wikipedia

   en.wikipedia.org/wiki/Baker_valve_gear

   After about 1910, the Baker valve gear was the main competitor to Walschaerts valve gear for steam locomotives in the United States. Strictly speaking it was not a valve gear but a variable expansion mechanism adapted to the Walschaerts layout replacing the expansion link and sliding die block. The Baker arrangement used more pivot bearings or ...

3. Joy valve gear - Wikipedia

   en.wikipedia.org/wiki/Joy_valve_gear

   Joy valve gear. Joy valve gear is a type of steam locomotive valve gear, designed by David Joy (3 March 1825 – 1903), Locomotive and Marine engineer, and patented (no. 929) on 8 March 1879. [ 1] The British patent has not been found but the US patent (US252224 of 10 January 1882) has. [ 2] Joy's gear is similar to Hackworth valve gear but has ...

4. Walschaerts valve gear - Wikipedia

   en.wikipedia.org/wiki/Walschaerts_valve_gear

   Note that the radius bar is set to reverse. The Walschaerts valve gear is a type of valve gear used to regulate the flow of steam to the pistons in steam locomotives, invented by Belgian railway engineer Egide Walschaerts in 1844. [ 1] [ 2] The gear is sometimes named without the final "s", [ a] since it was incorrectly patented under that name ...

5. Expansion valve (steam engine) - Wikipedia

   en.wikipedia.org/wiki/Expansion_valve_(steam_engine)

   An expansion valve is a device in steam engine valve gear that improves engine efficiency. It operates by closing off the supply of steam early, before the piston has travelled through its full stroke. This cut-off allows the steam to then expand within the cylinder. [1] This expanding steam is still sufficient to drive the piston, even though ...

6. Corliss steam engine - Wikipedia

   en.wikipedia.org/wiki/Corliss_steam_engine

   A Corliss steam engine (or Corliss engine) is a steam engine, fitted with rotary valves and with variable valve timing patented in 1849, invented by and named after the US engineer George Henry Corliss of Providence, Rhode Island. Corliss assumed the original invention from Frederick Ellsworth Sickels (1819- 1895), who held the patent (1829) in ...

7. Valve Corporation - Wikipedia

   en.wikipedia.org/wiki/Valve_Corporation

   Valve S.a.r.l. Valve GmbH [ 4] Campo Santo. ASN. 32590. Website. valvesoftware.com. Valve Corporation, also known as Valve Software, is an American video game developer, publisher, and digital distribution company headquartered in Bellevue, Washington. It is the developer of the software distribution platform Steam and the game franchises Half ...

8. List of Valve games - Wikipedia

   en.wikipedia.org/wiki/List_of_Valve_games

   Valve's logo. Valve is an American video game developer and publisher founded in 1996 by Gabe Newell and Mike Harrington. The company is based in Bellevue, Washington. [ 1] Valve's first game was Half-Life, a first-person shooter released in 1998. [ 2] It sold over nine million retail copies. [ 3][ 4] Alongside Half-Life ' s launch, Valve ...

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