link motion

link motion

English

Noun

link motion (plural link motions)

  1. (engineering, dated) A valve gear consisting of two eccentrics with their rods, giving motion to a slide valve by an adjustable connecting bar (the link) in such a way that the motion of the engine can be reversed, or the cutoff varied.
    • 1921, Ernest Leopold Ahrons, Steam Locomotive Construction and Maintenance, Chapter VIII:
      The eccentric rods and eccentric straps are then coupled up. The eccentric sheaves have already ​been keyed on at the proper angle to the crank axle in the wheel shop, and nothing remains to be done but to place the straps and rods in position, and couple the latter to the links of the link motion, which are put up at the same time and connected to the valve spindles.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for link motion”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)