(under subclass 523) Apparatus in which means are effective to disrupt the tool moving means to stop the tool during or after each tool cycle in such manner that the initiation or continuation of a succeeding cutting cycle requires the intervention of a randomly operating agency or stimulus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
203+, for apparatus of the unicyclic type where the tool engages the work during a dwell in the intermittent feed of the work.
484, for a rotatable disc tool carrier movable unicyclically.
SEE OR SEARCH CLASS
173, Tool Driving or Impacting,
19, for a tool driving or impacting means moved through a self acting advance and retraction cycle. 234, Selective Cutting (e.g., Punching),
51, for a nonrepeat means in the tool drive of a selective cutting device.
