Hilfsvorrichtung zum Einleiten des Wicklungsvorganges an Spulmaschinen

505,947. Winding yarns ; bobbins. SCHARER - NUSSBAUMER & CO. July 5, 1938, Nos. 19883, 19884, and 19885. Convention, dates, Oct. 28, 1937, Dec. 21, 1937, and March. 7, 1938. [Classes 120 (ii) and 120 (iii)] In a yarn winding machine in which, by the turning of a common carrier, a full bobbin at the end of the winding operation is moved from the winding position and an empty bobbin moves to take its place, the full bobbin is given a terminal winding at the tip by means of a retaining member on the bobbin carrier as the full bobbin is moved from the winding position; the thread during the turning of the carrier being brought into the range of the thread deflector which engages the thread and moves it laterally into the path of a thread catching device on the moving empty bobbin or its spindle so that it is caught thereby for the starting of the new winding. As shown in Fig. 1, the retaining members or hooks 12, 12 for the spindles 6, 6 respectively are carried by a plate 10 connected by a tube 11 on the stationary shaft 4 with the plate 1 of the bobbin carrier. The bobbin carrier is moved during the winding, in the manner described in Specification 467,301 and at the end of the winding the thread is moved by the reciprocating guide 13 into the hook 12 so that as the full bobbin 8 is moved from the winding position a winding is wound on the tip of the bobbin by the rotation thereof on its own axis. As the bobbin 8 is being wound a barbed needle 14, forming the thread deflector and carried by a rod slidable in the carrier plates 1, 2 and projecting through a notch in a fixed disc 17, has been pushed by an abutment 16, during the longitudinal movement of the carrier, through the notch against the action of a compression spring 15 and at the end of the winding operation it is carried with the plates 1, 2, from the winding position with its end engaging the disc 17 while the barbed needle 14 , Fig. 6, associated with the empty bobbin is moved by its spring 15 , as the empty bobbin reaches the winding position, through the notch in the disc 17 and carries the thread leading from the thread guide 13 to the tip of the full bobbin 8 into the path of a rotating catch 19 on the empty bobbin 8 or its spindle 6' which is then being driven by the endless belt described in the above-mentioned Specification; the thread thus becomes wound around the empty bobbin while it is also broken between the two bobbins. The spindle driving heads may be provided with thread-catching de