return of a piston
11Elevator — For other uses, see Elevator (disambiguation). A set of lifts in the lower level of a London Underground station. The arrows indicate each elevator s position and direction of travel …
12Diving regulator — and Octopus Other names Demand valve Uses Reduces pressurized breathing gas to ambient pressure and delivers it to the diver Inventor Manuel Théodore Guillaumet (1838), Benoît Rouquayrol (1860) …
13DIRAVI — is the name given by Citroën to its proprietary power steering system, first seen in 1970. DIRAVI is an acronym for Direction à rappel asservi literally meaning steering with controlled return more accurately described in English as power… …
14Oldsmobile V8 engine — The 1966Toronado s 425 V8, the first post war front wheel drive V8 application. The Oldsmobile Rocket V8 was the first post war OHV V8 at General Motors. Production started in 1949, with a new generation introduced in 1964. Like Pontiac, Olds… …
15automobile — automobilist /aw teuh meuh bee list, moh bi list/, n. /aw teuh meuh beel , aw teuh meuh beel , aw teuh moh beel, beuhl/, n. 1. a passenger vehicle designed for operation on ordinary roads and typically having four wheels and a gasoline or diesel… …
16mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …
17De Havilland Mosquito — Infobox Aircraft name= DH.98 Mosquito type=Fast bomber, fighter bomber, and night fighter manufacturer=de Havilland Aircraft Company caption= Mosquito B Mark IV Series 2, DK338 , in flight after completion c. 1942. IWM Collection designer=Ronald… …
18Fighter aircraft — A fighter aircraft is a military aircraft designed primarily for air to air combat with other aircraft, as opposed to a bomber, which is designed primarily to attack ground targets by dropping bombs. Fighters are comparatively small, fast, and… …
19Valve — This article is about the flow control device. For the game developer, see Valve Corporation. For the electronic component, see Vacuum tube. For other uses, see Valve (disambiguation). These water valves are operated by handles. A valve is a… …
20pneumatic device — Any of various tools and instruments that generate and use compressed air. Examples include rock drills, pavement breakers, riveters, forging presses, paint sprayers, blast cleaners, and atomizers. Compressed air power is flexible, economical,… …
