Patent GB-189912674-A (GB)
Title: Improvements in or relating to Machines for Winding Yarn, Thread, and other Material.
Inventor: LEESON JOSEPH ROBERT
Filed: 1899-06-17
Granted: 1899-10-14
Abstract: 12,674. Leeson, J. R. June 17. Winding-machines.-Reference is made to Specifications No. 6497, A.D. 1892, and No. 17,123, A.D. 1894. Means are provided for automatically withdrawing the thread-guide from the cop or package when the machine stops, for replacing it again when the machine is restarted, and for gradually decreasing the tension on the yarn as the cop increases in diameter. The yarn passes through a tension device, through a slotted plate m, by which slubs are removed, over a projection 56 on the balanced lever 51, and over a guide-rod 5 to the traversing-guide i, which lays it upon the spindle 9. The tension device consists of two sets of fingers c, c<2>, of which one set is fixed and the other pivoted, so that the fingers of the pivoted set may pass to a greater or less extent between those of the fixed set. Any suitable stop apparatus may be employed, which requires for its operation a partial rotation of the shaft 21, which is blocked in its working position by stops 43 and 46, the first being on the stop lever E' and the second upon a spring lever E, which carries the pivoted balanced lever 51. A lever P on the shaft 21 is connected by a link o with the lever 51. The upper end of the lever 51 is formed with a cam surface, which, when the stud 56 is released through the breakage of a thread, engages with a disc 53 on the rotating spindle shaft, and disengages the stops 43, 46, stopping the machine. When the machine is stopped by hand, the lever 51 is turned by the link o, whereby a stud similar to 56 operates a rod g projecting from a pivoted block Q and causes a pin k thereon to engage with a yoke a on the pivoted fingers of the tension device, so as to release the tension on the yarn. As the cop increases in diameter and the guide i is moved away from it, the guide is prevented from again approaching the cop by means of a balanced cam 64, which engages with the heel 62 of the frame F, and the balanced cam is connected by means of a subsidiary weighted lever 73, 75 and adjustable link M<2> with the yoke a of the tension device, so that, as the winding proceeds, the tension on the yarn is automatically reduced. When the machine is stopped and started, the rotation of the shaft 21, by means of the arm P and link X having rack teeth x, operates a disc S carrying a spring crank-pin s, which during a part of its revolution engages with a segmental rack 64<a> on the cam 64, so as to throw the threadguide away from the cop when stopping the machine, and cause it to approach the cop when the machine is restarted. The spindle may be adapted for winding either cylindrical or conical cops. Fig. 17 shows the spindle adapted for winding conical cops, and Fig. 21 a split extension for the spindle 9, which may be screwed into the socket in the end of the spindle, and be expanded, when the paper tube has been placed thereon, by means of a screw 21. The conical tube holder B' is ribbed longitudinally, and is rotated upon a fixed conical bearing K by means of the toothed gearing 40. This gearing is covered by a screwed cap L provided with a lubricating-aperture t ; 22 and 23 are apertures containing lubricating-pads, and 0 is a guard for preventing the flying about of escaping lubricant. The conical tube is prevented from moving longitudinally on the holder, by means of a split and ribbed or roughened ring G, which is held and expanded by bevelled surfaces 26, 25, the latter being formed on a sleeve H forced and held in place by a screw j.