US PATENT SUBCLASS 83 / 221
.~ Interlock between tool actuating and work feed means


Current as of: June, 1999
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83 /   HD   CUTTING

202  DF  TOOL ENGAGES WORK DURING DWELL OF INTERMITTENT WORKFEED {40}
221.~ Interlock between tool actuating and work feed means


DEFINITION

Classification: 83/221

(under subclass 202) Device including means, additional to those means which establish the cyclically timed relationship between the tool and work movements, which additional means is effective to block or otherwise prevent the normal cyclic operation of either tool or work moving means, unless the latter two means are located in a desired relationship.

(1) Note. The interlock is an additional feature provided as a safety precaution rather than part of the work or tool feed drive.

SEE OR SEARCH THIS CLASS, SUBCLASS:

222, for a device wherein completion of work-feed motion serves to trip a tool actuating means into action, and completion of tool stroke serves to restart the work-feed.

380, for an interlock which prevents a tool from starting

through its stroke unless a clamp is in actuated position.

399+, for an interlock between a plurality of elements, in general and see Notes to subclasses 399+ for other "interlock" subclasses.