(piston-rod)
81Gas-operated reloading — Gas operation is a system of operation used to provide energy to operate autoloading firearms. In gas operation, a portion of high pressure gas from the cartridge being fired is used to power a mechanism to extract the spent case and chamber a… …
82Artificial lift — involves the use of artificial means to increase the flow of liquids, such as crude oil or water, to the surface of a production well. Generally this is achieved by a mechanical device inside the well, such as a pump; decreasing the weight of the …
83Glossary of rail terminology — Rail transport Operations Track Maintenance High speed Gauge Stations …
84wrist pin — noun pin joining a piston to a connecting rod • Syn: ↑gudgeon pin • Hypernyms: ↑pin * * * noun : a stud or pin that forms a journal (as in a crosshead or trunk piston) for a connecting rod see crosshead illustration * * * Mach. a pin joining the… …
85trunk engine — noun 1. : a steam engine having a piston rod that is a pipe of sufficient diameter to enable one end of the connecting rod to be attached to the crank and the other end to pass within the pipe and be pivoted to the piston 2. : an engine (as most… …
86Steam locomotive components — A listing of the components typically found on Steam locomotives.Guide to steam locomotive components (The image is of a composite imaginary locomotive, not all components are present on all locomotives and not all possible components are present …
87SIG SG 550 — SG 550 The SG 550 service rifle Type Assault rifle Place of origin …
88Parallel motion — This article concerns parallel motion in mechanics. For parallel motion in music, see the article Contrary motion. The parallel motion is a mechanical linkage invented by the Scot James Watt in 1784 for his double acting steam engine.In previous… …
89Cox Model Engines — are used to power small model airplanes, model cars and model boats. Cox engines were in production for more than 50 years between 1945 and 2006 by L.M. Cox Manufacturing Co. Inc. who later became Cox Hobbies Inc. and then Cox Products before… …
90technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
