valve gear link
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Valve gear — Valve Valve, n. [L. valva the leaf, fold, or valve of a door: cf. F. valve.] [1913 Webster] 1. A door; especially, one of a pair of folding doors, or one of the leaves of such a door. [1913 Webster] Swift through the valves the visionary fair… … The Collaborative International Dictionary of English
Valve gear — The valve gear of a steam engine is the mechanism that operates the inlet and exhaust valves to admit steam into the cylinder and allow exhaust steam to escape, respectively, at the correct points in the cycle. It is sometimes referred to as the… … Wikipedia
Stephenson valve gear — The Stephenson valve gear or Stephenson link or shifting link [Snell, J B (1971). Mechanical Engineering: Railways, Longman Co, London] is a simple design of valve gear that was widely used throughout the world for all kinds of steam engine. It… … Wikipedia
Walschaerts valve gear — The Walschaerts valve gear is a type of steam engine valve gear invented by Belgian railway mechanical engineer Egide Walschaerts in 1844. The gear is sometimes named without the final s , since it was incorrectly patented under that name. It was … Wikipedia
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… … Wikipedia
Southern valve gear — was briefly popular on steam locomotives in the United States. It combines elements of the Walschaerts and Baker patterns.HistorySouthern valve gear was devised by locomotive designers on the Southern Railway (US) and used on many locomotives on… … Wikipedia
Bulleid chain-driven valve gear — and were based upon motor vehicle practice in an attempt to create a compact, but efficient design with a minimum of service requirements. Design principles Oliver Bulleid s decision to have three cylinders, all driving the middle coupled axle of … Wikipedia
Bagnall-Price valve gear — is a type of steam engine valve gear developed at locomotive manufacturer W.G. Bagnall as an alternative to the more common Walschaerts valve gear. The gear was patented in 1903 by W.G. Bagnall and T. S. Price, the manager of the works. Layout… … Wikipedia
Baguley valve gear — The Baguley valve gear is a type of steam engine valve gear invented by Mr E. E. Baguley the draftsman of the W.G. Bagnall company of locomotive manufacturers. It was patented in 1893.The valve gear is used to operate the inlet and outlet valves… … Wikipedia
Joy valve gear — is a type of locomotive valve gear, Patented in 1870, where the movement is derived from a vertical link connected to the connecting rod. The vertical movement is translated into the horizontal movement required by the valve spindle by a die… … Wikipedia
Link motion — Link mo tion (l[i^][ng]k m[=o] sh[u^]n) n. (Steam Engine) A valve gear, consisting of two eccentrics with their rods, giving motion to a slide valve by an adjustable connecting bar, called the link, in such a way that the motion of the engine can … The Collaborative International Dictionary of English
