Patent GB-753515-A (GB)
Title: Improvements relating to the manufacture of composite cigarettes
Inventor: EDWARDS WILLIAM FREDERICK MAIT
IPC: A24C5/52
Filed: 1953-11-02
Abstract: 753,515. Cigarette-making machines. FILTER TIPS, Ltd. Oct. 28, 1954 [Nov. 2, 1953], No. 30268/53. Class 130. A continuous filler 2, fed on to a conveyer comprising two separate sectors 1a, 1b, driven by sector-shaped gears 7a, 7b, attached thereto and engaged periodically by a toothed driving wheel 9, is cut by a knife 6 at the junction of the two sectors and the sector carrying the severed tobacco length is then accelerated relatively to the other sector to form a gap between the severed length and the remainder of the filler into which a mouthpiece stub is inserted by a stub wheel 20 to form a composite filler. The sector 1b is fixed to a shaft 8b on which is fixed a sector-shaped gear 7b and the sector 1a is fixed to a sleeve 8a carrying a sector-shaped gear 7a, the gears 7a, 7b, being driven by a gear wheel 9 and being capable of rotary movement relative to one another during their rotation. Each gear 7a, 7b, carries a lever 10 with a cam follower 11 engaged in a stationary cam-groove 12, the lever 10 on one sector having teeth 13 meshing with a rack 14 on the other gear sector. Each conveyer sector 1a, 1b, carries a knife 6 fixed to a shaft 16 which is in contact with a face cam 17 which permits the knife to be moved transversely of the filler 2 by a spring 15 at appropriate intervals, each sector 1a, 1b being twice the length of the tobacco in the completed cigarette. In the position shown in Figs. 1 and 3 both gear sectors 7a, 7b, and their corresponding conveyor sectors 1a, 1b, are being rotated at the same speed- and the tobacco length on the sector 1a has been severed by the knife 6. Immediately thereafter the gear 9 moves off the sector 7a on to the sector 7b and the lever 10 on the sector 7b is moved clockwise by the cam 12, causing the associated rack 14 and its associated sector 7a to be accelerated. The sectors 7a, 1a thus move away from the sectors 7b, 1b, respectively as shown in Fig. 4 to form a gap between the severed tobacco length and the remainder of the filler which is being carried on the sector 1b, into which gap a double-length stub 18 is inserted by a wheel 20 to form a composite filler. The tobacco length on the sector la abuts the previously inserted stub 18 and is removed on to a paper web 21 in which the composite filler is wrapped, the resulting rod being cut at the mid points of the stubs and tobacco portions. After half a revolution of the sectors 1a, 1b, the leading end of the sector 1a is in contact with and moving at the same speed as the trailing end of the sector 1b and after severing of the filter the cycle is repeated with the sector 1b carrying the severed length and being accelerated away from the sector 1a. A guide 1c prevents the tobacco lengths being flung off the sectors 1a, 1b. In the Provisional Specification it is stated that more than two arcuate members 1a, 1b, may be provided each of which is connected to a bell crank lever pivoted on a rotatable ring and forming a cam follower engaging a fixed cam which causes acceleration of each arcuate member at the appropriate time.