US PATENT SUBCLASS 19 / 258
.~.~ Roll type

Current as of: June, 1999
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19 /   HD   TEXTILES: FIBER PREPARATION

65 R  DF  WORKING {8}
236  DF  .~ Drafting {7}
258.~.~ Roll type {9}
259  DF  .~.~.~> Including slip roll
260  DF  .~.~.~> Including changing roll speed or location {1}
262  DF  .~.~.~> With clearing {3}
266  DF  .~.~.~> Pressure-applying devices {9}
286  DF  .~.~.~> Roll condensing
287  DF  .~.~.~> Reciprocating transverse guide, condenser, or roll
288  DF  .~.~.~> With fiber guide, condenser, or brake {4}
293  DF  .~.~.~> Gear or friction driving
294  DF  .~.~.~> Roll stands {1}

DEFINITION

Classification: 19/258

(under subclass 236) Method or apparatus wherein the simultaneous feeding and retarding of a fiber strip is accomplished by a series of cooperating roll pairs, spaced apart, which causes said strip to become attenuated lengthwise upon its travel through the series.

SEE OR SEARCH CLASS

198, Conveyors: Power-Driven,

604+, and 624+ for opposed, load-gripping conveyor rolls.

464, Rotary Shafts, Gudgeons, Housing, and Flexible Couplings for Rotary Shafts, appropriate subclasses for a flexible coupling between a torque transmitting shaft and a member driven by the shaft.

492, Roll or Roller,

48, for a roll cover, per se, not elsewhere provided for, and subclasses 57+ for a single annular roll member of specific composition.