Patent GB-190709147-A (GB)
Title: Improved Apparatus for Manufacturing Cigarettes.
Inventor: WARTMANN OTTO
Filed: 1907-04-19
Granted: 1908-03-12
Abstract: 9147. Wartmann, O. April: 19. Cigarette - making machines. - Ina cigarette - making machine of' the continuous-rod type the tobacco is fed by hand to the paper strip carried by an endless band, and the cigarette rod is fed forward intermittently a distance equal to the predetermined length of the cigarette, a flat V-shapepointed knife cutting off the lengths of cigarette during the pause between successive feeding movements. The trough 2, which is exchangeable, is open at 12 for a length sufficient to permit the tobacco to be laid by hand on the paper strip which is carried by the endless band 3. At this part of the trough, guides 2<a>, 16, Fig. 16, are provided for the band and paper strip respectively in order that the tobacco may be pressed by a presser roller 14, bridge 17<a>, and spring- tongues 17, Fig. 3<b>. The margins of the strip 10, after escaping from the guides 16, are brought to a vertical position by a pair of vertical rollers 19 and then turned down over the tobacco rod by vertical rollers 21, 22. After passing under a bridge 26, the edges of the margins are pasted by a pasting- disk 27 and pressed down by a series of edge-rollers 35, 36, 37, Figs. 2<c> and 3<b>. The various parts of the machine are preferably operated by spring-controlled treadle mechanism. The band 3, which passes around a pulley 4, is driven by means of a bell-crank pawl 62, 63, Fig. 2<c>, which, during the forward stroke, nips the band against the pulley and carries it round a distance determined by the length of cigarette desired. On the return stroke, the pawl releases the band, which remains stationary while the knife 41, Fig. 6, is caused to cut through the cigarette rod. This knife, which has a V-shaped point in order that it may pierce the rod and then cut upwards and downwards with a guillotine-like movement, is operated by a crank 45 attached to a ratchet-wheel 49 having only a single tooth, with which engages in one direction only a spring-pressed pawl carried by a toothed wheel engaging with a rack 55 which is operated through the lever 60, Fig. 2<c>, by the treadle. The knife 41 is attached to a holder 42 which slides on a slide 43, Fig. 6, and the blade co-operates with a bed-cutter 43<a> having an aperture 43<b> for the cigarette rod to pass through. The stroke of the rack 55, Fig. 2<c>, and with it the travel of the band &c., is adjustable by means of the stop 56. The pasting-disk 27, Fig. 3b, is driven and supplied with paste by means of a cord 30 which passes over a pulley 32 and roller 33 and through a paste box 34 and is driven from a pulley fast on the shaft of a guide-pulley of the band 3. The tension of the band 3 is regulated by means of the tension-rod 84, Fig. 2<a>. The paper roll 11, Fig. 2<a>, is mounted loosely on a spindle 94, and the rotation of the drum is retarded by a brake consisting of spring arms 95 bearing frictionally against the face of the roll. The spindle 94 is free to rotate through a small angle determined by a cord 96 attached to a weighted arm 98 which keeps the paper strip in tension. The strip passes over a platen roller 87 and is printed by means of an india-rubber segmental stamp 89 driven by a mutilated friction wheel 91. The spindle 90 is eccentrically weighted in order to bring the stamp into position to commence the printing when the strip recommences to move, the mutilated friction wheel permitting it to assume this position. An inking-pad 92 is mounted on a bracket and makes contact with the stamp every revolution, the pressure of the pad on the stamp being capable of variation. The cigarettes as they are cut off travel down the shoot 102, Fig. 2<c>, into a suitable receptacle. Instead of the pressing-rollers for the tobacco rod, a cross-pin 99, Fig. 15, carried by a pair of radius links 100 may be substituted. The trough is preferably so shaped as to produce an oval cigarette. Preferably some reciprocating member of the driving-means is provided with means, such as a ratchet &c., whereby the treadle &c. is prevented from returning until the full stroke has been accomplished.