Patent GB-241400-A (GB)
Title: Improvements in and relating to the counting mechanism of machines for forming papercups and like containers
IPC: B31B1/74
Filed: 1924-11-13
Abstract: 241,400. Rogers, F. H., (Vortex Mfg. Co.). Nov. 13, 1924 . Paper and like bags, &c., making.-In machines for making and stacking paper cups, dishes, or containers a counting mechanism is provided for registering the number of completed articles, and is furnished with control devices for stopping the blank material feeding means and the operation of the stacking mechanism after a predetermined number of the articles have been transferred to the stacking mechanism. The blank material is held in a magazine 2, Fig. 1, and is fed to the cup &c., forming mechanism by means of a friction pad 16, Fig. 7, mounted on a reel 15 adapted to be rotated by gearing connected with the main driving mechanism. The reel is rotatably mounted on a hollow shaft 5, and is adapted to be connected thereto by means of a pin 12 on a slidably mounted shaft 7 and a pin 14 on the reel 15. The shaft 7 is held in the inoperative position against the action of a spring 9 by a looking or control arm 10 engaging a collar on the shaft 7. The main operating shaft 17 through a sprocket chain 18 drives a shaft 19 carrying one member of a clutch 21 which is adapted to be coupled to another clutch member on a pair of cams 22, 23 loose on the shaft 19. The cam 22 rocks a bell-crank lever 97, Fig. 6, to which is pivoted a link 96 operatively connected through an arm 93 with an arm 91 to operate a pusher bracket 88 adapted to transfer the formed article to a position over the receiving or stacking tube 81. The cam 23, through arms 102, 103 secured to a shaft 98 and a link 104, rocks a lever 105 to cause reciprocation of a link 107 and a pusher rod 75. The rod 75 has a shaped head 79 adapted to push the article through a ring 80 into the tube 81. At the same time a pinion 20 integral with the cams drives a pinion on a shaft 85, which through gearing 83, 84 effects the rotation of the tube 81 so that the folded portions of the stacked articles are arranged in staggered relation. To the link 107 is attached one end of a cord or chain 73, the other end of which is connected to the end of the arm 59, Fig. 4, of the counter actuating bellcrank lever 60, a spring-controlled detent 61 thereon being adapted to engage the pins 54, Fig. 3, on the units drum. If the counter is arranged to count articles in batches of a hundred, the hundreds numeral drum 53 is adapted to cooperate with a weighted or gravity controlled detent 65 which normally engages a notch 68, Fig. 2, in a trip bar 43. The trip bar 43 is pivoted to one arm of a bell-crank lever 44, the other arm of which is connected to the locking arm 10. At its free end the trip bar 43 is connected through a system of links and bell-crank levers with a pin 38 that co-operates with a spring- controlled latch rod 33 mounted on a spring-con- !rolled bracket 28, 30, secured to the upper end of the spindle 25 of the clutch engaging and disengaging yoke member 24. When the predetermined number has been counted one of the pins 54 rocks the detent 65 so as to release the trip bar 43, which, under the action of a spring 71, moves to the right, whereupon the bell crank lever 44. through the link 72, raises the locking arm 10 free of the collar on the shaft 7 to permit the shaft to move to its inoperative position and stop the feeding movement. Movement of the trip bar 43 to the right causes the free end thereof to be moved into the path of the coupling member 82 connecting the link 107 and rod 75 so that on the next upward movement the trip bar 43 is raised to lift the pin 38 and release the latch rod 33, thus freeing the bracket 28, 30, which turns the shaft 25 and disengages the clutch members 21.