PAPER BAG MACHINE

MACHINE A SACS DE PAPIER

Claims

Claim.lst. A former for making tucked paper tubing, constructed substantially as described, and combined with pneumatic mechanism, subtantially as described, for forcing the walls of the tub- ing into substantial conformity with the shape of the former. 2nd. The combination of the hollow former 41,h eying the outward opening 52 and the inward openings 62 and 63, with mechanism for drawing air from the interior of the former. 3rd. The combination of a former having a rectangular part, corresponding in cross-section with the untucked paper tube formed thereon, with the rolls 42 and 43, for guiding the paper to the former and for defining the two lower corners of the rectangular untucked paper tube, all substantially as described. 4th. The combination of a former, having a rectangular part corresponding in cross-section with the untucked paper tube formed thereon, with the inclined apron 40 joined to the former, and and with the rolls 42 and 43 for guiding the paper from the apron to the former and for defining the two lower corners of the rectangular untnoked paper tube, all substantially as described. 5th. The combination of the roller 24, the two slides 20 and 21, the two racks 18 and 19, the shaft 23 and the ;tyro pinions 28 and 29, substantially as described. 6th. The combination of the roller 45, the head 46, the bolt 49 and the spring 50, substantially as described. 7th. The combination of the carriage 80, operated by the connecting rod 98, the crank 100 and the gear 102, with the presser .plate 83, operated by the connecting rod 113, the cam 117 and the spring 115, substantially as described. 8th. The combination of the carriage 80, the switch cams 124., the springs 125 and the tuck arms 85 and 86, substantially as described. 9th. The combination of the finger 136 and the shaft 137, both rocking, substantially as described, with the carriage 80, remProcating substantially as, described, all operating to deliver the forward end of the diamond to the cylinder 141, substantially as described. 10th. The combination of the pinching blade 174 and the rocking box 172, both operating together to flatten the fold at the line r, r, substantially as described. 11th. The combination of the cylinder 141, the feeler 187, the hook 188, the spring 190 and the arm 189, all operating together in such a way as that, when the point of the feeler enters one of the recesses 191, the said mechanism will stop the machine by shifting the belt to the loose pulley 72 through intermediate mechanism, substantially as described.