Patent GB-191213502-A (GB)
Title: Improvements in and relating to Machines for Applying Tips to Lacings.
Inventor: GALLISON ERNEST AUGUSTUS
IPC: A43D98/00
Filed: 1912-06-08
Granted: 1913-02-27
Abstract: 13,502. Gallison, E. A. June 8. Laces.-A machine for applying tips for laces (1) severs blanks for a double tip from a strip of sheet celluloid or similar material; (2) folds each blank into a tube around the lacing ribbon, while applying a solvent for celluloid to its inner surface; (3) compresses the celluloid, which is heated, into the ribbon fabric; and (4) cuts each lace through the centre of the double tip. The strip of celluloid a, Fig. 2, is fed from a reel 88 between guides 90 by rolls 91 geared together and actuated by ratchet mechanism, adjustable to vary the length of feed and connected to a carrier 31, Figs. 5' and 23, which contains an electric heater 32 and is reciprocated in the bed 35 of the machine through links 40, 44, 45, 47, 48 by cams 38, 41 on a shaft 34. The tip-forming mechanism, Fig. 23, is supported in a standard 37 above the carrier, and comprises a knife 51 which co-operates with a cutting-edge 52 on a flange 58 of the carrier to cut off a blank, a crimper 53 which pushes the blank into a channel 64 in the carrier to give a trough shape to the blank before the ribbon is folded and placed therein, and a punch 55 which has a curved face 56 to fold the blank around the ribbon and compress it. The punch 55 and the sides of the channel 64 are heated by the heater 32, one side of the channel being formed by the flange 58, the other side being the rear end of a slide 62. When the blank has been shaped by the crimper 53, it is moved by the carrier under the punch 55, which descends to fold one edge of the celluloid over the ribbon, a solvent, which runs over the inner face of the blank, being supplied to the punch. The punch is then raised and the carrier shifted so that the slide 62 comes against a stop 66 and is moved, compressing a spring 63, to bring the other edge of the blank under the punch, which again descends and completes the double tip. The tip may be either cylindrical, Fig. 12, or tapering, Fig. 13. The knife 51 and crimper 53 are carried by a slide 50 engaging the forked end 71 of a spring-pressed lever bearing on a camoperated vertical slide 76. A slide 54 carrying the punch 55 is actuated from a cam 86 through a slide 84 and lever 80. The solvent is supplied to the punch 55, through a duct closed by a needle-valve 70 operated by the punch and communicating with a chamber 68, Fig. 6, intermittently and automatically charged with fluid from a reservoir 69 by a pipe 195 having a cock 196 provided with a spring-controlled arm 197 operated by the lever 72, Fig. 2. The lacing-ribbon b is fed from a reel under a tension bar 105 and under the punch 55, then between pairs of folders 153, 154 and between three pairs of grooved feed rolls 106, 108, 109, the rolls pushing the ribbon with the tube applied under a knife 110, which cuts the double tip in two. In its passage from the rolls 106 to the rolls 108, the ribbon passes over a loop-forming roller 107 mounted on a rod 112 adjustable in a slot 113 for different lengths of laces. The rolls 106, 108, 109 are geared together and intermittently rotated by a gear 119 on a shaft 120 geared to a pinion on a stud shaft 127 carried by a swinging bracket 129, so that different pinions may be used to adjust the length of ribbon fed. The shaft 127 is rotated by an electric or other motor through belt and toothed gearing, and carries a spring-controlled clutch intermittently disengaged by a cam acting on an arm connected thereto. The rolls 109 are geared to rotate slightly faster than the rolls 108, 106, to preserve the lace in tension. The ribbon is folded by two pairs of folders 153, 154, Fig. 17, rocked by racks 158, 159 so actuated that one edge of the ribbon is turned over before the other. Stationary curved guides 155 and straight guides 175 are used in addition to the rocking folders. A presser 174 at each end of the punch 55 pushes the folded ribbon into the channel 64. The knife 110 is carried by a pivoted bar 111 actuated by a rockshaft at the same time as the folders, the tube being positioned during the cutting operation by a front stop 188 carried by a lever 189 the other end of which is acted on by a cam 191 to withdraw the stop. Lateral and upward movement of the tube is prevented by side guides 193 and a top bar 194. In a modification, Fig. 28, the lacing ribbon is drawn in a straight path from the tip-forming mechanism instead of passing under a loop-forming roll, the machine having a frame extension 202 on which slides in ways 204 an adjustable table 205 carrythe tip-cutting mechanism and a pair of feedrolls 207. The rolls 207 are driven from the rolls 108 by means of toothed pinions and sprocket chains 213, 215 passing over sprocketwheels 212, 214, and 217, the intermediate sprocket-wheels 214 being carried at the intersection of two pivoted links 219, 220 which keep the chains taut in any position of the table 205. The pivoted knife bar 111 and a front stop 235 for the double tip are actuated through links by spring-controlled slides 243, 228, having rolls 245, 229 bearing on cams 246, 225 slidably mounted on a shaft 223 driven by the shaft 34 through bevel-gearing. The cams are shifted with the table 205 by a yoke 226 carried by the table. In a modified form of machine, the ribbon is introduced by hand, and the severing of the double tip is performed before it is removed from the tip-forming mechanism. The machine, Fig. 32, comprises a bed 323 and two standards 324, 325, in which is journaled a cam shaft 334 carrying cams 338, 339, 340 and driven by worm gearing from a shaft 337 having a treadle-controlled clutch and belt pulley. The sheet celluloid a is fed step-by-step by rolls 328, 329 rotated through links by the electrically-heated carrier 331, which is reciprocated by the cam 338 through a rack 344, pinion 345, and links. The carrier has a spring- controlled sliding plate 362, Fig. 38, which comes against a stop 366 to reduce the width of the tip-holding recess as previously described, and also notched knife blade 372 with a cutting- edge 373, the blade being carried by a shank 374, movable endways but normally held by a spring 376 in the position shown in Fig. 32 with the blade 372 against a stop 379. The knife moves with the carrier, but when the double tip is applied, a stop 380 is moved into the path of the knife shank 374 so that, on the continued movement of the carrier, the double tip is severed. The stop 380 is carried by a movable spring-controlled arm actuated from the cam 338. The celluloid cutting - knife 351 and crimper 353 are carried by a slide 350 actuated by the cam 339. The tip-forming punch 355 is actuated from the cam 340, which also controls the supply of solvent to a cup provided with a needle valve opened by the ascent of the punch 355. The tips may be of any colour, and may have a smooth or ribbed external surface.