US PATENT SUBCLASS 19 / 215
.~.~ Tuft combing

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

65 R  DF  WORKING {8}
115 R  DF  .~ Combing {9}
215.~.~ Tuft combing {8}
216  DF  .~.~.~> Tuft translating type {1}
218  DF  .~.~.~> Waste clearing
219  DF  .~.~.~> With auxiliary pressing
220  DF  .~.~.~> Nonrotary combing {1}
225  DF  .~.~.~> With oscillating or reciprocating nipper {3}
229  DF  .~.~.~> Detaching (i.e., segment) {2}
233  DF  .~.~.~> Rotary comb cylinder {1}
235  DF  .~.~.~> Nipper

DEFINITION

Classification: 19/215

(under subclass 115) Method or apparatus comprising a step of, or means for, drawing the fibers through the teeth in approximately fiber length bunches. Figures 1 through 4, below, are illustrative of a tuft combing operation. [figure] [figure] [figure] [figure]

(1) Note. The following description of a tuft combing device, is typical, though not restrictive or essential (of subclass 215): In general the apparatus is one in which a fiber lap (C) is delivered to nipper (B, D) comprising a pair of gripping jaws, which jaws are operated in sequence to allow the forward end of the lap (C) to pass therethrough and then to close upon it and grasp it firmly, permitting a portion of the lap (C) (which ultimately makes up the tuft) to lie in the path of the comb teeth (1) on a comb cylinder (H) whereby the forward end of such projecting portion is combed. In carrying out the attenuation of this forward end, the comb cylinder (H) presents the forward end to a pair of detaching cylinders (F, G) (which may also be mounted for oscillation - one or both - toward and away from the comb cylinder). These cylinders (F, G) seize the front end portion and by their forward rotation form a tuft, by separating the projecting portion of the lap (C), and pull it through the teeth of a top comb (E) which may be lowered for this purpose. By such top combing action, the tail end of the tuft is combed. The combed front end of the tuft and the tail end of a preceding tuft are overlapped and pieced together to form a continuous fleece (J).