Patent GB-190704848-A (GB)
Title: Improvements in Spinning Mules.
Inventor: GOLLAND HENRY STAFFORD
Filed: 1907-02-28
Granted: 1907-12-05
Abstract: 4848. Golland, H. S. Feb. 28. Mules. - Relates to a development of the invention described in Specification No. 22,988 A.D. 1902, for producing cross-wound cops by means of an oscillating guidewire a, Fig. 7, working between the winding-faller 26 and the spindles i. The usual copping-rail is dispensed with, the winding-faller being merely intermittently raised slightly as the cop is built up at each run-in. The wire a is carried by fingers g fixed to a rockshaft c provided with pokers e sliding in brackets f secured to the mule carriage, an additional taut wire k at the opposite side of the shaft c serving to keep the wire a taut. The shaft c is rocked by means of an adjustable crank w, Fig. 1, and links v from a cross-head loosely mounted on a rod t, which is rotated by a sleeve s splined on it and driven by bevel and spur gear from a rack on the floor ; this rotary motion effects the reciprocation of the rod by means of groove-cams x, y, Fig. 4, fixed thereon and bearing on bowls 5, 6 supported on sliding plates 3, 4 in such a manner that the extent of oscillation imparted to the wire a is gradually increased during the formation of the cop bottom to a maximum, which is continued until the cop is completed. To effect this, _the plates 3, 4, which are guided in a casing 2 embracing the cams and supporting the shaft t, are pivoted at 9, 10, Fig. 2, to side plates 11 provided with inclined slots 12 engaged by a cross-pin on a movable bar 14. On commencing a set of cops, the bar 14 is set so that the cross-pin is below the pivot 9 of the plate 3, which is thus locked so that its bowl 5 acting on the cam y effects a reciprocation of the rod t. The cam x, which has a greater throw than the cam y and is suitable for imparting the maximum movement required to the rod, is at this time ineffective, but as the cop bottom is built up the bar 14 is traversed so as to move the cross-pin along the slots 12, whereby a gradually increasing reciprocation of the rod is obtained due to the combined effect of the two cams until ultimately, when the cop bottom is completed, the cross-pin is brought below the pivot 10 of the plate 4, the cam x then alone being effective and remaining so throughout the building of the cop. The bar 14 is traversed by a lever 18 fixed on a shaft provided with an arm 17 engaging below nuts on a rod 16, which carries at its lower end a pivoted latch 19; Fig. 1, engaged during the formation of the cop bottom by a lug 20 on a slowly rotating shaft 21, so that the rod is slowly drawn down until a stop 22 releases the latch on completion of the cop bottom. In another method of traversing the bar 14, the upper end of a lever pivoted on the casing 2 engages the bar, and the lower end engages an inclined slot, which as the casing slowly rises effects the traverse. The casing 2 is suspended from the rock-shaft c, and a small upward movement of this shaft and of the winding position of the winding-faller 26 is effected at each run to correspond with the increasing length of the cop. For this purpose, the shaft o, Figs. 1 and 3, of the gearing operating the rod t carries a disk 27 with a pivoted pawl 28, which is inoperative during the run out of the carriage, but which, during the run in, operates a ratchet lever 29 to advance a ratchet-wheel 31, thereby, through the shaft 32 and worm gear 33, 34, shaft 35, and gear 36, 37, Fig. 11, slowly rotating the shaft 21. This shaft carries pinions engaging racks on the pokers e and the casing 2, and a screwed part of the shaft 35 engages a nut 44 embraced by a alidable bracket 43 carrying a bowl 41 supporting the winding-faller locking- lever 42, so that the rock-shaft c and winding-faller 21 are raised simultaneously. The lever 42 is knocked off the bowl 41 at the end of the inward run by the usual stop 45 on the floor, and the counterfaller is operated as usual. To take up the slack yarn formed at each lift of the winding-faller after winding, the lifting movement of the faller is arrested momentarily when the faller is opposite to the apex of the cop nose, and the spindle speed is accelerated. The momentary pause of the faller in the position stated is obtained by making the bowl 41 with a flattened part and effecting its rotation by means of a spring-controlled lever operated from a stop on the floor, so as to bring the flat part under the lever 42 and thus allow-this lever to descend sufficiently to bring-the faller wire opposite to the apex of the cop nose just before the lever is knocked off in the usual way. At this period, the spindle speed is accelerated by a pin on a bracket fixed to the headstock acting against a portion of the winding-on chain at the completion of the run-in, the chain for this purpose passing from the winding-drum to the quadrant arm over a guide-pulley on the carriage so disposed as to leave a portion of the chain opposite to the deflecting-pin. The mechanism for oscillating the wire a is repeated on each side of the headstock, and the mechanism for raising the rock-shaft c gradually may be similarly repeated, but this motion is preferably transmitted from the shaft 21 on one side of the headstock to a corresponding shaft on the other side through a countershaft 52, Fig. 7, driven by means of both a winding-on an'd unwinding chain and spur gear from the shaft 21, and driving through similar mechanism the corresponding shaft on the other side. The mechanism is reset for commencing fresh cops By turning back the ratchet-wheel shaft 32. In the Provisional Specification, the use of a single cam for reciprocating the rod t is described.