Patent GB-267919-A (GB)
Title: Improvements in apparatus for the simultaneous production of a number of cigarettes
IPC: A24C5/02
Filed: 1927-03-11
Abstract: 267,919. Roet, I. March 20, 1926, [Convention date]. Cigarette-making machines.-A machine for the simultaneous manufacture of a number of cigarettes comprises a number of stationary cylindrical cases 41, each of integral form and arranged in a row, the successive operations for the manufacture of a finished cigarette being performed in each case 41. A strip 24 of cigarette paper is brought into position opposite to the cases 41, Figs. 3, 7, &c., and is divided by knives 32 into a number of pieces, each of which is pushed by a member 39 through a tangential slot 40 into a case 41; a reciprocating and rotating ram 42, Figs. 9 and 10, then expands the paper in each case 41 into a tube and fills it with tobacco from a funnel 48. The machine is shown in elevation in Fig. 1 and in plan, with part removed, in Fig. 3, details being shown in the remaining figures. The machine is driven from a motor 1 through belt pulleys 2 - - 5, a shaft 6, bevel gearing 7, 8, and a shaft 9 carrying pulleys 10, 25. Paper 24 from a reel 18 passes over a guide 19 and is carried into the machine between pairs of endless steel bands 20 passing around rollers 14, 15 and pairs of bands 21 passing around rollers 16, 17. The bands 20, 21 carry grippers 22, 23, Fig. 5, and the roller 14 is driven intermittently through bevel gearing 12, 13 from the pulley 10, which is non-circular in order to drive only during a part of each revolution. The knives 32, Figs. 3 and 7, are pivoted to fixed blades 33 and actuated by arms 31 on a rod 30 carried by levers 29 moved by cams 28 on a shaft 27 driven from the shaft 9 by belt gearing 25, 26. The pushers 39 are actuated by arms 38 on a rod 37 actuated through levers 36 by cams 35 on the shaft 27. The rams 42, Figs. 9 and 10, are carried by a beam 52 connected by rods 53 to a beam 51 actuated through a lever 140 and link 141 by a cam 49 on the shaft 6, the cam comprising members adjustably connected to a disc by bolts engaging slots in the disc. The lever 140 is pivoted upon an eccentric 139 on a shaft 138 carrying an arm 142 bearing upon an interchangeable cam 144 on the shaft 6, the stroke of the rams being varied by changing the cam 144. Each ram carries rubber rings 44, 46 on which pressure is exerted through bushes 45, 47 in order to expand the paper in the case 41; the pressure is exerted on the bush 47 by a lever 62, the end 61 of which rests on a pivoted segment 63 connected by a link 66 to a lever 65 actuated by a cam 64 on the shaft 27. At the same time, the rams are rotated by a rack 58 engaging a pinion 59 on each ram and actuated through levers and links by a cam on the shaft 27. Tobacco is fed to the funnels 48 from a hopper 73, Fig. 10, in which rotates a roller 70 having pockets 74 discharging the tobacco through outlets 75 to the funnels. The pockets 74, Fig. 23, have resilient bottom plates 154 adjusted by means of screws 153 and the circumferential extent of each pocket is adjusted by the adjustment of projecting members 149 about the shaft 69, which is driven from a pulley 71 on the shaft 27. Either of the pockets 74 may be covered by a sliding plate 150. During filling of the cigarette papers, the latter are held around the base of the funnels 48 by pairs of spring controlled grippers, one arm of each pair being actuated by a beam 116 and the other by a beam 117; the beams 116, 117 are actuated through levers 121, 123 and bolts 125 pivoted to a beam 97, which is connected by links 96 to arms 95 on the shafts 94 rocked by linkage from a grooved cam 84 on the shaft 27. The cigarette papers are folded at the ends by pivoted members 77 - - 80, Fig. 11, the lower ends being folded before filling and the upper ends after filling. The folding members 77, 78 are actuated by a shaft 81 and arms 98 on the beam 97; and the members 79, 80 are connected to shafts 82, 83 carried by beams 107, 108, which are connected by links 105, 106 to arms 104 on shafts 101. Oscillation of these shafts is effected by face cams 99 on the shaft 27, which engage projections 102, 103 on the shafts. Before the folding of the upper ends of the cigarette, the funnels 48 are withdrawn by a beam actuated, by cams 109 on the shaft 27. After folding is completed, the cigarettes are ejected through a discharge channel by the rams. A modified form of ram 127, Fig. 15, is fitted with a strip of fibre 128 and is centered by means of a cone 129 and plate 130, the cone being adjusted by means of a screw 155.