US PATENT SUBCLASS 57 / 335
.~.~.~ Revolving roll-pair type

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}
335.~.~.~ Revolving roll-pair type

DEFINITION

Classification: 57/335

Revolving roll-pair type:

(under subclass 334) Apparatus including at least one pair of rollers through whose bight the strand passes, and which are revolvable jointly about an axis which is substantially coincident with the path of travel of the strand.

SEE OR SEARCH THIS CLASS, SUBCLASS:

330, for false twisters of the revolvable rollers type in which the rollers comprise one element of a fiber drafting stage.