US PATENT SUBCLASS 234 / 19
.~.~ With change in feed of pattern or work

Current as of: June, 1999
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234 /   HD   SELECTIVE CUTTING (E.G., PUNCHING)

13  DF  WITH MEANS TO IMPOSE PROGRAMMED CONTROL OF AUXILIARY-OPERATION {6}
18  DF  .~ Embodying means to effect selection or shift or skip of field {1}
19.~.~ With change in feed of pattern or work

DEFINITION

Classification: 234/19

(under subclass 18) Device including means effective during a predetermined time interval to speed up, slowdown, or temporarily block the progressive movement of work or pattern past the zone of cutting or sensing operations.

(1) Note. "Skip bar" controls are found in this subclass, also arrangements for permitting "multiple punching" in given columns.

SEE OR SEARCH THIS CLASS, SUBCLASS:

28+, for randomly controlled changes in feed of pattern or work.

72+, for alteration of the effect of pattern data which may involve changes in feed.