GB187486A - Improvements in coupon or card feeding device - Google Patents

Abstract

187,486. Thornton, A. A., (Comas Cigarette Machine Co.). Nov. 23, 1921. Sheet separators and carriers.-Cards or coupons are fed from the bottom of a magazine 1 by means of a reciprocating rocking-head formed of two parts 2, 3 connected together by screws and fitted with a series of needles 4 which engage the bottom card of the pile and feed it into positively driven rollers 5, 7. The rocking-head is reciprocated by a crank-disc 9 on the shaft of roller 7, and the connecting-rod 22 is connected eccentrically to the shaft 19 which connects the rocking-head to a slide 26 which moves in guides in the frame of the machine. A spring 28 with a rubber block 29 engages the slide 26 and restrains it from movement while the rocking-head is moving about its pivot. The needles 4 are moved to sheet-engaging position as the crank-pin 20 moves from the position shown in Fig. 7 to that shown in Fig. 6. The rotary movement of the rocking-head is limited bv the engagement of a projection 27 with the slide 26, and this prevents the needles from penetrating too far into the bottom card. The slide 26 carries the bottom sheet into the bite of the rollers 5, 7, and the rocking-head is then moved to the position shown in Fig. 7 to free the card from the pins 4. The rollers 5, 7 are of equal size and are geared together by pinions having teeth differing in number by one or two so that the peripheral speeds of the rollers are not exactly the same, and the resulting slipping movement keeps the rollers free from dirt. Should the needles 4 fail to feed a sheet, a shoulder 30 is adapted to engage the rear end of the bottom card, and push it forward. Should two sheets be fed, the top sheet is returned by a positively driven roller 15 coacting with an idler roller 16 the roller 15 being set so as normally to have no action on a single sheet passing between the rollers 15, 16. The roller 15 is geared to and rotates reversely to the roller 5.