US PATENT SUBCLASS 57 / 330
.~.~.~ With self-contained drawing means


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

1 R  DF  APPARATUS AND PROCESSES {45}
315  DF  .~ With drafting {5}
328  DF  .~.~ False twist type {3}
330.~.~.~ With self-contained drawing means


DEFINITION

Classification: 57/330

With self-contained drawing means:

(under subclass 328) Subject matter wherein an element of the drafting mechanism is part of, or mounted on, the false twister.

(1) Note. Such means commonly comprise a twister in which the twisting and untwisting rotation is imparted to the strand by means of a pair of revolvable and rotatable rolls and further characterized by the fact that such rolls are rotated at a speed differing from that of another cooperating pair of drafting rolls mounted independently of the twister.

SEE OR SEARCH THIS CLASS, SUBCLASS:

335+, for twisters of the revolvable roll pair type in which the twister-rollers do not perform any drafting function.