Patent GB-235887-A (GB)
Title: Improvements in machines for making closed corner mounts for pthotographs, cards and the like
IPC: B31D1/00
Filed: 1925-06-17
Abstract: 235,887. Riley, L. S. June 17, 1924, [Convention date]. Photograph and like mounts.-Corner mounts for photographs, cards, &c. in the form of rightangled pockets, each comprising a body portion 330, Fig. 23, and a cap portion 332 secured together by adhesive, are made in a machine through which two strips of material are fed at right-angles to each other. The body strip, from which the portions 330 are formed, is coated with adhesive on its under-surface, and each portion 330 is provided with turned-over flanges 331, to which the cap portion 332 is caused to adhere. The machine frame comprises standards 30, Fig. 1, mounted on a base plate 34, which is supported on legs 35, the standards supporting an operating crank-shaft 40, provided with a wheel 43 and a driving-pulley 44. Punching-mechanism. The body and cap of the mount are stamped out by means of two dies 50, 51, Fig. 7, with which co-operate reciprocating punches 52, 53. The body die 50, Fig. 9, is provided with a cut-out guideway 58 through which the body strip 341 is fed. The forward end of the die is of angular shape and corresponds with that of the punch 52, Fig. 21, by which the completed corner mount is severed from the body strip. The die is formed with a recess 101, into which the strip is pressed by a spring tongue 100, Fig. 10, operated by a lever 110, Fig. 7, and a cam, in order to turn-up the flanges 331, Fig. 23. The flanges are subsequently pressed down on to the strip by a pair of sliding wipers 121, Fig. 21. The cap die 51, Fig. 14, has a recess 70 to receive the end of the body strip as it is fed forwards from the die 50, and a passage 71 through which the cap strip is fed. The die 51 contains a triangular opening 72 for the passage of the punch 53, which cuts out the cap and applies it to the body portion, the cap strip having been previously damped to cause adhesion. Reciprocating fingers 192 hold down the flanges on the body portion until the cap is applied. The punches 52, 53 are mounted in a plate 80, Fig. 1, carried by a plunger 92, which is reciprocated by a crank on the shaft 40. For supporting the corner mount during the action of the cap punch, especially if the cap is to be embossed, a spring-supported table 270, Fig. 14, is provided, and is adapted to be lowered by a lever 273, Fig. 7, and a cam 281. The final pressure of the punch is received by an inverted cup-shaped cap 300, Fig. 7, mounted on an adjustable block 301, an elastic cushion being interposed between the cap and the block. Feeding and delivery mechanism. The body strip 341, Fig. 7, is fed intermittently from a roll be means of feed and idler rolls 150, 152, Fig. 8, the feed roll having mounted on it a resilient cam 151, the length of which determines the feed stroke. The feed roll is driven from the shaft 40 through intermediate shafts and spiral gears. The cap strip is fed by means of an endless belt 210, Fig. 1, the strip being drawn from a roll 340 and wound on a roll 320. The belt is advanced by a pair of feed rolls operated by ratchet-mechanism 236 from the shaft 40 through a rod 238, which is adjustably connected to a crank disc to enable the feed to be varied. Before entering the machine, the cap strip is damped by passage through a water-receptacle 250. The feeding-belt 210 passes over the edge of a table 360, at which point the completed corner mounts are: stripped from the belt and slide down an inclined shelf 362.