CPC B65H 75/28 (2013.01) [B65H 65/00 (2013.01); B65H 2701/31 (2013.01)] | 18 Claims |
1. A reusable yarn carrier tube for winding yarns of various thicknesses thereon at high speeds as the carrier tube is rotated in a rotational winding direction, the carrier tube comprising:
a circumferential wall; and
a pick-up groove formed into and extending along the azimuthal direction of the circumferential wall, the pick-up groove having a sidewall, wherein the pick-up groove comprises:
a plurality of teeth projecting from the sidewall of the pick-up groove toward a central azimuthal axis of the pick-up groove,
wherein the distance between the teeth decreases as measured along the central azimuthal axis of the pick-up groove.
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18. A reusable yarn carrier tube for winding yarns of various thicknesses thereon at high speeds as the carrier tube is rotated in a rotational winding direction, the carrier tube comprising:
a hollow cylindrical wall; and
a pick-up groove formed into the cylindrical wall and extending along the azimuthal direction of the cylindrical wall, the pick-up groove having at least a first sidewall and a second sidewall, wherein the pick-up groove comprises:
a plurality of teeth projecting from the first sidewall and second sidewall of the pick-up groove toward a central azimuthal axis of the pick-up groove,
wherein the size of each of the plurality of teeth increases along the central azimuthal axis of the pick-up groove.
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