Patent GB-749527-A (GB)
Title: Improvements in or relating to dispensers of ribbon segments
IPC: A24C1/04
Filed: 1953-08-05
Abstract: 749,527. Cigar-making machines. GENERAL CIGAR CO., Inc. Aug. 5, 1953 [Aug. 8, 1952], No. 21594/53. Class 130. [Also in Group XVI] A tenuous ribbon of tobacco sheet material from a roll is held, by means on a reciprocatory frame, in contact with roller means mounted on the frame and rotatably driven to dispense the ribbon during frame movement in one direction, at the end of which movement cutting means severs from the dispensed ribbon a cigar binder of length substantially equal to the frame stroke. In one embodiment, the roller means is a perforated drum 82, Figs. 1 and 4, rotatable on a tube 77 having fins 79, 80 dividing the drum interior into compartments one of which is connected to a source of vacuum via a bore 81 and the tube interior. The drum is mounted on a frame C horizontally reciprocable from a face cam 66 via link 61 and angled lever 62 and is rotated anticlockwise to dispense the ribbon during the left-ward movement of the frame C, being held stationary during right-ward frame movement to draw further ribbon off the roll 28. Such intermittent drum rotation is effected by a gear 72 meshing teeth on the drum periphery and having a ratchet 73 engageable both by a stationary pawl 75 and by a pawl 74 on a gear 70 meshing a rack 69 on the frame C. Binder severance is effected by an obliquely transversely set knife 91, which is fixed if the frame C is mounted as shown in a frame B reciprocable vertically by a cam 50, bell-crank 47 and link 46 so that the drum 82 travels in a loop, but is otherwise made vertically reciprocable. Ribbon is drawn off the roll 28 via an idler 89 on the frame C and a tensioning idler 24 mounted on an arm 22 to swing about the axis of the roll 28 under the action of an adjustable counterweight 25 and apply via a spring 34 a leather brake strap 33 to the roll spool 26 when ribbon is not being drawn off. In another embodiment the ribbonis dispensed by being gripped betweensolid rollers 117, 118,Fig. 11, geared together to rotate oppositely and mounted on a reciprocatory frame and intermittently rotated therefrom as before. The ribbon is fed to the rollers between two series of wires 135, 137 welded to frame members 136, 138 and passing through circumferential grooves on the roller surfaces, the binders being severed by scissors having a blade 141 fixed to the frame and a blade 139 pivoted thereon and lifted by co-action with a stationary cam until retained by a spring-loaded catch which is released by co-action with an adjustable stationary stop. Severed binders are dispensed by a plate 142, as to a cross-feed conveyer which is intermittently halted by electrical means to receive the binders, or to an intermittently stepped-round turret, the binders being removed from belt or turret at a further position by a suction carrier for transmission to a chianti belt for bunch rolling. In any case the work area on which the binder is dispensed may be perforated for intermittent suction application to the binder. The tobacco sheet material is made by mixing dry-ground tobacco with a highly viscous aqueous solution of a binding agent to form a paste which is spread in a thin layer and dried.