from The Century Dictionary and Cyclopedia

  • n. A link with a slot struck with an arc of a circle as center-line, used in the operation of certain valve-gears. Called also a quadrant.
  • n. A special name for a link in the valve-gear of certain types of oscillating engines.
  • n. The notched sector into which the latch catches on the levers which operate throttle-valves, so that the lever can be locked in position.
  • n. The notched sector or quadrant in which the lock or latch of the reverse lever in Stephenson link-motions can be engaged to hold the lever in desired positions.


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