Description
A model of a six-position Geneva drive.
The Geneva drive or Maltese cross is a gear mechanism that translates a continuous rotation into an intermittent rotary motion. The rotating drive wheel has a pin that reaches into a slot of the driven wheel advancing it by one step. The drive wheel also has a raised circular blocking disc that locks the driven wheel in position between steps.
http://upload.wikimedia.org/wikipedia/commons/9/9b/Geneva_mechanism_6spoke_animation.gif