Patent GB-190721870-A (GB)
Title: Process for Winding Rings, especially for the Manufacture of Thread Buttons, and Machinery therefor.
Inventor: HASPEL FRANZ
Filed: 1907-10-03
Granted: 1908-05-21
Abstract: 21,870. Haspel, F., and Tagger, H., and Salcher, H., Salcher, E., and Salcher, R., [trading as Salcher & S÷hne, M.]. Oct. 3. Wire and other cores, covering by winding. - In the manufacture of buttons, wire rings are covered with radial windings of thread, silk or the like in a machine shown in Fig. 1. The wire ring is held against two grooved rollers 12 by another roller 14 on a slide-bar 59 pressed upon by a spring 60. The thread is carried round it by a tubular thread carrier 11, mounted upon an arm of the sleeve 7, which revolves upon the cylinder 6 and is driven from the main shaft 4 by chain gear. The thread is taken from a spool which revolves with the sleeve. The rollers 12 are rotated to feed the ring, through gearing 20, 22, by a ratchet-wheel 19 which is actuated by a pawl and lever from a cam 17 on the main shaft. When the winding. is completed, an arm 91 is swung round and a hook-needle 82 is pressed through the ring. A finger 102 places the thread in ita barb. The needle withdraws and pulls a thread loop through. The needle is reciprocated by a lever 95 which bears upon the upper end of a rod 97 in the hollow pillar carrying the arm 91, and thereby receives motion from a cam-actuated lever 99 which engages a pin 98 on the rod. When the loop is formed, a lever 63 withdraws the rod 59 and roller 14, and the covered ring is left hanging upon the hook. The latter is then swung back and transfers the ring to the mouth of a shoot at the rear. A knife 105, Fig. 7, is closed upon the knife 104 and cuts the thread between the hook needle and the thread carrier. As the ring falls, the free end of the loop is pulled completely through the ring. At the same time the cut end of the supply thread is held by a spring 110. A fresh ring is supplied from a magazine 75 by a rack rod 71, which is moved forward simultaneously with a plate 69, the ring falling on to the plate 69 where it remains until engaged by the rollers 12, 13, 14. The whole of these movements subsequent to the completion of the winding operation are automatically performed by suitable mechanism connected with shafts 67, 85, which are rotated manually by the operator when the main shaft is stopped. The shaft carrying the arm 91 is rotated by rack and pinion 88, 90, and the rack is actuated by another pinion 87 on the shaft 85. This is provided with several ordinary teeth, and then a long tooth or blank which engages behind the last tooth on the rack and delays the action of the returning spring. The magazine slide 71 is toothed and actuated by a pinion on a shaft connected by a lever with a rack 80, which is actuated by a pinion 81, on the shaft 67, of similar construction to the pinion 87. The main shaft is stopped automatically when the lever 40 is removed and the clutch member 26 is moved laterally by a spring 28. For this purpose a disk 37, Fig. 4, is rotated through change-wheels 34, 36 from a pinion 32 which is rotated together with a star-wheel 31 as the latter is actuated by pins 30 on the clutch member 25. The disk 37 rotates once for each complete winding operation. The end 38 of a three-armed lever 38, 39, 54 rests upon the periphery of the disk and, when it falls into a notch in the disk, frees the lever 40 ; the spring 28 then opens the clutch. The movement of the lever 38 further frees a block 45 and permits it to press upon the periphery of a disk 42 on the main shaft so that it will enter a notch in that disk and positively stop the main shaft. During the time elapsing between the movement of the lever 38, the block 45, and the positive stopping of the shaft, a band brake 46 bears upon a drum on the sleeve 7. To restart the machine when a new button-ring is in place, the treadle lever 51 is depressed ; this first removes the brake by raising the brake-lever 49 ; secondly, depresses the arm 54 of the three-arm lever, and so removes both the lever 38 from the notch in the disk 37 and the block 45 from that in the disk 42 ; and thirdly, depresses the lever 56 and the arm of the lever 40 under it, and so closes the clutch 25, 26 and starts the machine.