Patent GB-363593-A (GB)
Title: Improvements in and relating to bunching motions for spinning mules and twiners
IPC: D01H3/12
Filed: 1931-04-23
Abstract: 363,593. Mules and twiners. LEES & CO., Ltd., A. and GUY, W., Soho Iron Works, Oldham. April 23, 1931, No. 12030. [Class 120 (ii).] In a bunch winding mechanism for a mule or twiner the trail bowl 6, Fig. 1, running over the shaper rail 5 actuates the faller in the normal manner until the bunching mechanism is set after which the first lift of the faller leg 15 puts into operation a catch 12, 16 which prevents the faller bowl 8 from operating the faller leg, the catch being automatically disengaged at the end and re-engaged at the commencement of each inward run during bunching, and not being engaged at the commencement of the first inward run after the bunch is completed. A bunching lever 10 is pivoted at 9 on the slide block 7 which carries the main faller bowl 8 and the trail bowl 6, and is pivotally connected at 11 by a link 18 to a side lever 19 pivotally mounted at 20 on a bearing bracket 21. The lever 10 carries an auxiliary faller bowl 12 adjustable in a slot 13 while an auxiliary faller leg catch 16 notched at 17 is pivoted in a slot in the faller leg 15. A shaft 22 is mounted in the bracket 21 and carries a ratchet wheel 23 having a non-toothed portion provided on its face with a projection 26 which engages in one direction an adjusting bracket 27 and in the other the lever 19. A lever 28 is also mounted on the shaft 22 and carries a pawl 29 engaging the ratchet wheel 23. During a normal inward run the faller leg 15 mounted on the faller bowl 8 is raised and lowered as the trail bowl 6 follows the slope of the rail 5, and at the end of the inward run the faller leg 15 is pushed off the bowl 8 during unlocking. During these operations the lever 10 is raised so that the leg catch 16, resting against the bowl 12, Fig. 2, moves up and down with the faller leg 15. To wind a bunch the point 11 is lowered. At the beginning of the inward run the leg catch 16 rests freely against the bowl 12, Fig. 2. On the inward run the leg catch 16 rises with the faller leg 15 and the notch 17 engages the bowl 12, Fig. 1, and after the bowl 6 has passed the ridge of the rail 5 the faller bowl 8 leaves the leg 15 which is held up by the engagement of the members 12, 16. During each inward run a rod 31 rides up an inclined lever 34, raises the lever 28, and thereby rotates the ratchet wheel 23 until the pawl 29 works over the non-toothed portion. When the bunch is completed the stop 26 lifts the lever 19 thus raising the end 11 of the lever 10 and the leg catch 16 rests against the bowl 12, as in Fig. 2, having been disengaged therefrom during unlocking. In a modification, the slide block 7 is provided with an extension 39 carrying a stud 40 adjustable in a slot 41 while a latch 42 is pivoted on the bracket 21 and limited in its downward movement by stops 36, 37. In winding a bunch the upward movement of the slide block 7 engages the stud 40 over a hook 43 on the lever 42 and while the slide block is thus held up the bunch is wound. When the bunch is completed the stop 26 engages a projection 44 on the latch 42 and pulls the hook 43 clear of the stud 40 to release the slide block 7. To avoid strain when winding coarse yarn the latch 42 is mounted on an eccentric 45 on the shaft 22, Fig. 4, and a stud 47 projecting into the path of the stop 26, and ultimately lifted thereby, is adjustably fixed in a slot 46 to allow the latch a limited oscillation.