US PATENT SUBCLASS 112 / 312
.~.~ Plural differential feed means


Current as of: June, 1999
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112 /   HD   SEWING

154  DF  STITCH FORMING {17}
303  DF  .~ Feeding work material {13}
312.~.~ Plural differential feed means {1}
313  DF  .~.~.~> Having adjustment feature


DEFINITION

Classification: 112/312

Plural differential feed means:

(under subclass 303) Device wherein the feed means comprises at least two distinct work engaging mechanisms, each mechanism advancing at a different rate of speed.

(1) Note. The feed mechanisms of this subclass either move apart to stretch the work or move toward each other to bunch or ruffle the work.