Patent GB-782002-A (GB)
Title: Improvements in or relating to apparatus for transferring indicia to hosiery
IPC: B65H75/24
Filed: 1955-07-21
Abstract: 782,002. Transferring designs; feeding webs. PARAMOUNT TEXTILE MACHINERY CO. July 21, 1955 [Aug. 2. 1954], No. 21121/55. Classes 100(1) and 100(2) An apparatus for transferring indicia to hosiery includes a plurality of tapes each carrying equally spaced raised indicia on their upper sides, conveying belts for supporting the hosiery,in spaced relation resting on the tapes, means for moving the tapes and conveying belts in synchronism and step by step towards a transfer position, heating means located beneath the tapes, and pressure means mounted above the tapes at the transfer position for transfering the indicia to the underside of the hosiery. Hosiery 25, Fig. 2, supported on conveyer belts 26-29, Figs. 2, 7 and 10, running in grooves in a table 21, and raised indicia 30 spaced on tapes 22-24. Figs. 1, 2 and 7 are fed together intermittently to a transfer' position above heating shoes 47- 49, Figs. 1 and 9, and below platens 44-46. and stopped during the transfer operation, which is carried out by raising the shoes and lowering the platens. An electric motor 145 drives a cam shaft 149, two cams 150 on which periodically raise the platens against spring action, and two further cams 180 on which raise the heating shoes. The shoes are heated electrically, and the temperature is controlled thermostatically. The motor is started by moving a lever 195 to the left in Fig. 9, or operating a pedal 196 to close a switch 194. When the shoes 47-49 are raised, through a bar 183, a lever 188 pivoted at 189 is moved by a spring 191 into notches 184a in rods 184 to hold the shoes in an upper position. If the lever 195 is moved to the right, or the pedal 196 correspondingly actuated, or a solenoid 210 is energized, the lever 188 is moved out of the notches, the shoes fall, and a screw 214 opens a switch 215 to stop the motor. The solenoid 210 is energized when a finger 197. Figs. 1 and 2, drops when the supply of hosiery fails. A disc 161 is pivoted on one of the cams 150 and is connected to a cable 162, Figs. 1 and 14, which is secured to a pulley 163, which is thereby oscillated, a cable 164 and spring 165 producing the return motion. The pulley carries a pawl 167 which engages a ratchet wheel 170 nn a driving shaft 85, Figs. 1. 2 and 10, to oscillate the shaft. An arm 171 co-operating with a scale 174 is set by hand so that at the end of a predetermined angular movement of the shaft a cam 171a on the arm moves the pawl out of engagement with the ratchet wheel. The belts 26-29 are driven from the shaft 85 through clutches 90, 117, 134 adapted to be opened on energization of solenoids 106, 128. 141. When the clutches are opened, permanently operative friction brakes stop the belts immediately. A friction brake on the motor shaft is actuated by de-energization of a solenoid 231 to stop the motor positively as soon as it is switched off. The clutches are controlled in response to the raised indicia on the tapes. Feeding webs. The tapes 22-24 are unwound from reels 32-34, passed through a clutch controlling device, thence fed by and round rollers 38-40, Figs. 2 and 7, against which they are held by spring- pressed rollers 41, across the table past the transfer position, and through slots in the table to reels 50, 52, 51, which are driven intermittently from the shaft 85. The rollers 38, 39, 40 are coupled respectively to pulleys 56, 57 and 58, 59, which are driven by the belts and mounted respectively on a hollow section 60a, solid section 60b, and hollow section 60c of a shaft 60, the sections being telescopable and separately rotatable for relative adjustment of the tapes by hand-wheels 62, 63, 64. The tape 23, Figs. 1. 2 and 5, is drawn between wheels 281, 282, and the passing of raised indicia between the wheels moves the wheel 282 and swings a lever 277 to close a switch 236 and open the clutch 117. An arm 288 is set to produce a loop in the tape according to the distance between the indicia. Similar switches controlling the other two clutches are actuated by the tapes 22. 24 passing between wheels 252, 253, Fig. 1. No arm 288 is provided for the tapes 22, 24, but the switches are mounted to be adjustable vertically, and also laterally accordtng to the size of the hosiery. The vertical and loop adjustments are to ensure that the clutches will be opened when indicia are at the transfer position. The reels 50, 52, 51 are all constructed the same. The reel 52, Figs. 1 and 16, comprises two pairs of cross-bars 308, 308 and 320, 320, connected by rods 322 forming the hub of the reel. The bars 308 are pressed together by a spring 315, and can be moved, relatively to each other on release of a nut 310 through an angle limited by a pin and slot connection. One of the bars 320 is provided with extensions comprising wires or rods 323 held in radial position by coil springs 324. To reverse a roll of tape, the bars 308 are moved until they assume a relative angle of less than 45 degrees, and the distance round the four rods 322 is thereby reduced. The roll is then pulled off by binding the extensions 323. The end of the tape is held between one of the rods 322 and a leaf-spring 322a.