US PATENT SUBCLASS 57 / 336
.~.~.~ Having a frictional belt

Current as of: June, 1999
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57 /   HD   TEXTILES: SPINNING, TWISTING, AND TWINING

1 R  DF  APPARATUS AND PROCESSES {45}
332  DF  .~ False twist device {4}
334  DF  .~.~ Friction type {4}
336.~.~.~ Having a frictional belt

DEFINITION

Classification: 57/336

Having a frictional belt:

(under subclass 334) Subject matter wherein the frictional force for twisting the strand is created by a portion of a moving belt which rubs against another portion of the same belt, the strand being twisted in the rubbing portion of the belt.