(under subclass 202) Device having means so associated with tool and work moving means, that a tool upon reaching a predetermined point in its travel causes initiation of the work-feed means, which latter at a predetermined point in its travel will initiate the next tool stroke.
(1) Note. The definition of this subclass requires successive interactions alternately between tool moving and work moving means (a chain reaction), as distinguished from subclass 221, which requires merely unilateral control of one such means by the other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
221, for interlock between tool actuating means and work moving means.
225+, for work-feed controlled by means on tool or tool support.
231+, for tool actuation effected or initiated by work-feed element.
399, for interlock between any two elements of a machine, and see the Search Notes thereunder, for other pertinent subclasses. 400, for interlock between two elements plus means to initiate an operation upon release of interlock.
