US PATENT SUBCLASS 139 / 170.3
.~ Inactive weft restrainers


Current as of: June, 1999
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139 /   HD   TEXTILES: WEAVING

116.1  DF  WEFT MANIPULATION {13}
170.3.~ Inactive weft restrainers {2}
170.4  DF  .~.~> With cutter
170.6  DF  .~.~> Box position responsive {1}


DEFINITION

Classification: 139/170.3

(under subclass 116) Means for preventing inactive weft threads from being drawn into the shed simultaneously with the active weft during the operation of multiple-shuttle looms.

(1) Note. Such devices, sometimes called filling locks or sideline eliminators, commonly function to maintain the length of inactive weft extending from its shuttle in a position in which it cannot be contacted by the active weft or shuttle.

(2) Note. While devices which are mounted near the fell (as on the breast beam or temple support) may exert little more restraint on the inactive weft than that imposed by such weft's attachment to the fabric, they are included in this and indented subclasses since they are most frequently found in conjunction with inactive weft cutters (in which case they supply the support and restraint which can no longer be provided by the fabric itself) and since the additional function performed by those such devices not associated with cutters is the further removal of the inactive weft from the path of the active shuttle. (See patent 2,219,794 to Turner in subclass 170.6 indented hereunder).

SEE OR SEARCH THIS CLASS, SUBCLASS:

184, for multiple shuttle boxes, per se.