Abstract: For piecing to an open-end friction spinning device with two friction spinning elements normally driven in the same direction of rotation and forming a nip therebetween, of which friction spinning elements at least one is capable of being subjected to suction, fibers are continuously fed to the nip and are then immediately removed from same. While fiber feeding continues uninterruptedly, the removal of fibers from such nip is then discontinued, so that fibers remain in the nip and form a rotating accumulation of fibers. A yarn end is then introduced to such accumulation of fibers. Newly formed yarn is then drawn off from the nip while fibers being fed continuously to such nip are continuously formed into such yarn. For such removal of fibers, a controllable suction air nozzle may be directed towards the above-mentioned nip from a side of the friction spinning elements opposite such nip.

Abstract: The present invention relates to a device for forming a reserve winding on a bobbin tube outside the traversing path of a main thread guide which moves to and fro along the bobbin tube wherein a thread holding device is disposed in the vicinity of a thread path between a thread delivery point and the bobbin tube. The device includes an auxiliary thread guide arranged in the region of the reserve winding between the bobbin tube and the thread holding device having two deflecting guides between which the thread can be guided parallel to the surface of the bobbin tube whereby a thread catching projection disposed on the bobbin tube and rotating therewith projects between the two deflecting guides for catching the thread, and a movable thread guide arranged on the side of the auxiliary guide away from the bobbin for transferring the thread to the main traversing thread guide after the reserve is formed.

Abstract: Mechanism for supplying sliver to a resolving roller is adaptable to slivers having different average staple fiber lengths by selectively engaging a plurality of clamping members to provide a selectable nip line between a sliver supply roller and its cooperating member at different distances from the resolving roller corresponding to the sliver average staple length. Either the selected clamping member or the counter member is the supply roller. Selection of the desired nip line may be made by moving one or more clamping members and the counter member relatively, by selection of one of a plurality of feed nozzles, or by selective positioning of a movable feed nozzle. The nip line selection may be effected at individual spinning stations or simultaneously for a plurality of spinning stations.