bell crank definition

  • others:
    • A lever whose two hands form the right direction, or nearly the right angle, having its fulcrum on apex of the perspective. Its used in bell pulls and in switching the way of bell cables at angles of rooms, etc., and in addition in equipment.
  • noun:
    • In machinery, a rectangular lever wherein the way of motion is altered through an angle of 90°, and also by which its velocity-ratio and range might changed at pleasure by making the arms various lengths.
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