| 摘要 |
A device for feeding strands such as for further textile processing wherein driving means comprising a pair of nip rolls are continuously and drivingly engaged with the strand extending therebetween, said nip rolls being movably supported between spaced speed-control rolls which are operable at different surface speeds so that selective movement of said nip rolls as a unit against the surface of one or the other of the speed-control rolls serves to drive the nip rolls and thus in turn feed the strand located therebetween at different rates. This device has particular utility in producing air-textured composite yarns, including both core-and-effect and slub-type yarns, but is not limited to such use. |
