Patent GB-190800480-A (GB)
Title: Improvements in or relating to Machines for Winding Yarns, Threads and the like
Inventor: WARDWELL SIMON WILLARD
Filed: 1908-01-08
Granted: 1909-03-08
Abstract: 480. Wardwell, S. W. Jan 8. Winding-machines.-A winding-machine designed to produce a yarn or thread cop A, Fig. 3, having a core or base B with a flat conical end C and formed of a series of graduated overlapping windings, and a body D having a tapered nose and formed of uniform windings, as described in Specificatinn No. 19,974, A.D. 1906, is shown in Fig. 2. The building-up of the base of the cop is effected as follows. The bobbin 2, Fig. 2, is mounted on a winding7spindle 3, provided with fast and loose pulleys 4, 5 and connected by gearing H to a pair of oppositely-rotating screwed cylinders 9, 10, the screws having a quick pitch adapted to produce a winding with an open helix. An arm 14 hangs from a reciprocating rod 13 and has two partial nuts 15, 16, Fig. 9, adapted to engage with the screwed cylinders alternately. A rod 17 passes through an arm 14 and is laterally adjustable to bring one or other of the partial nuts into engagement with its screwed cylinder. The controlling- mechanism for the arm 17 is shown in Fig. 8. The arm has a sleeve 20 through which the rod 17 passes and, thimbles 21, 22 with eccentric bores at their ends are fitted on the ends of the sleeve. Flanged bushings 25, 26, pressed apart by a spring 29, are adapted to be pressed alternately into the eccentric bores and so press one or other of the partial nuts against its screwed cylinder. This action is effected by contact-pieces 32, 33, against which the ends of the sleeve strike alternately as the sleeve reciprocates, so that one or other of the springs 34, 35 engages laterally with the sleeve, presses the partial nut against its screwed cylinder, and so causes a traverse of the rod 13 and yarn guide-holder 7. The length of the traverse depends on the position of the contact-pieces 32, 33, and mechanism for automatically regulating their position is shown in Figs. 4 and 5. An arm 46 on a rocking frame 45 rests against the cop, and as each winding is put on, the arm moves the rocking frame outward. The contact-piece 32 is carried by a tube 37 having a rib 40 engaging with the teeth of a ratchet plate 43 on the rocking frame, and as the frame moves outwards the rib engages with successive teeth and a spring moves the contact-piece to a new position. The flat conical end of the cop is formed by a similar ratchet-plate device 44 which effects the adjustment of the contact-piece 33. The base having been obtained in this way, the cop is completed by continuing the winding with a uniform traverse that has a progressive longitudinal displacement. This displacement is produced by a contact-wheel 54, which engages at the end of each double traverse with the base 56, Fig. 3, of each conical winding and is partly rotated thereby, and by means of a screw device (not shown) causes the yarn guideholder 7 to advance slightly. When the cop is complete, the yarn guide-holder strikes a stop (not shown) on a rod 70, which withdraws a catch 66 and allows the spring 67 to change the belt-shifter 65 from the fast to the loose pulley. By means of an eccentric screw device 6, the guide-holder can be disengaged and manually adjusted. A device for laying succeeding coils closely adjacent, as described in Specification No. 12,673, A.D. 1899, may be fitted to the winding-machine.