Patent GB-696358-A (GB)
Title: Improvements in apparatus for separating a ribbon of rubber threads stuck together into its component threads
Filed: 1952-06-10
Abstract: 696,358. Severing by tearing; braiding machines. UNITED STATES RUBBER CO. June 10, 1952. [Sept. 21, 1951] No. 14555/52. Classes 31 (i) and 74 (i). Apparatus for separating a ribbon R formed of a number of threads T of rubber stuck together into its component threads, comprises a drum 12, Fig. 1, for retarding the ribbon looped about it and having means for retaining the ribbon in non-slipping engagement therewith, means between the drum 12 and a drum 15 for deflecting some of the threads T along a different path from that of the rest to separate the threads, means for holding the separated threads looped about the drum 15 in non-slipping engagement therewith, means for retarding the rotation of the drums, and take-up means operable on the separated threads to feed the ribbon through the apparatus. When used in the manufacture of textiles, the threads T are supplied in the form of a ribbon, for convenience of handling, to a location adjacent a textile machine where they are separated before being fed to the machine which may function as a take-up means for the separating apparatus. The ribbon is tensioned as it passes around pins 10 to the drum 12, preferably formed from wood, plastic, etc., covered with rubber, on which it is retained by rolls 11, 13. A roll 14 is located between the drums 12, 15 to separate the threads at the roll 13, Fig. 3, and provide a separate path for some of them to take to the drum 15 on which they are held by rolls 16, 17. The drums are retarded to adjust the tension in the ribbon and the threads by brake drums 18 attached to the drums 12, 15 and having rope brakes 19 weighted at 21. In a modification, Fig. 2 (not shown), the drum 15 may be located sufficiently beneath the drum 12 to obviate the use of the roll 16, and both brake drums may not be the same size so that a single brake rope can be arranged to pass around both drums. In a further modification, Fig. 4, the drums may be mounted on one or two plates 38, 40 secured to the leg 27 of a braiding machine. The ribbon is looped over a stationary bar 43 having guide flanges 52, Fig. 5, passed around rolls 44, 45, and again around bar 43, and then looped around the drum 37 to the roll 46 on which the individual threads are separated. The rolls 44, 45 are located in engagement with the flanges 52 between the plate 38 and a flange 53 on the bar 43. A further roll 54 may engage the ribbon and prevent broken threads from reaching the drum 37. The separated threads are then fed from the roll 46, 47 to the drum 39 from which they are pulled past a roll 48 and through a ring 49 by the braiding machine, broken threads being prevented from wrapping around the roll 45 by a guide plate 50. Braiding machines.-The rubber threads T are interlocked with textile yarns Y to form an elastic braid B which is drawn upwardly by power-driven rolls 31 rotated by bevel gears 33 and a worm gear 36 from the main shaft 35 of the machine. The rubber threads are passed around rolls 51 beneath the table 26 of the machine and directed upwardly to a former 30 through, or along, posts 37 on the table and about which carriers, supporting packages 23 of the textile yarns Y on spindles, waltz in sinuous grooves in the table, a guide eye being provided at the top of a spindle 29 on each carrier to guide the yarns Y. The rubber threads T are tensioned for the braiding operation by the brake drums 23, 24 and the brake rope 22 of the apparatus for separating the threads.