US PATENT SUBCLASS 83 / 219
.~ With variable direction of work-feed from cycle to cycle


Current as of: June, 1999
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83 /   HD   CUTTING

202  DF  TOOL ENGAGES WORK DURING DWELL OF INTERMITTENT WORKFEED {40}
219.~ With variable direction of work-feed from cycle to cycle {1}
220  DF  .~.~> In one of certain selected directions


DEFINITION

Classification: 83/219

(under subclass 202) Device including means to effect successive increments of work-feed in different directions, (as when following a contour), in presenting work for successive operations by the same tool.

(1) Note. This subclass does not include devices where work can be manually shifted in position between cuts while a

machine-driven work-feed means merely continues to move work in the same direction (as in an ordinary sewing machine); See subclass 249 for disclosures of such devices.

SEE OR SEARCH THIS CLASS, SUBCLASS:

71, for control of machine functions generally by means responsive to indicia on tape or card (i.e., pattern control).

249, for feed means modified to facilitate shifting of work by external agency, and see (1) Note.

356, for periodic tool actuation timed with moving work, with periodic lateral shift of work (or tool). 367, for movement of work responsive to work-sensing means.