Patent GB-234044-A (GB)
Title: Improvements in or relating to tobacco-proportioning machines
IPC: A24C1/02
Filed: 1924-11-18
Abstract: 234,044. Aktiebolaget Formator. May 14,1924, [Convention date]. Cigar and cigarette making machines. - In machines in which approximately equal portions of tobacco are fed in succession into a container where the tobacco is re-apportioned, mechanism is provided to maintain constant the average' size of the in-fed portions. As shown in Fig. 2 the tobacco is initially portioned by mechanism described in Specification 230,788 the size of the portions being regulated by the position of a stud 9 in a slot 10 of the actuating-arm 5 of the portioning-mechanism. The stud 9 is carried 'by a cam-reciprocated rod 6 and the arm 5 is rotatable about a spindle 12. The arm 15 of a threearmed lever 13, 14, 15 is connected by a link 16 with the rod 6, the arm 14 carrying an adjustable balance-weight 33. An arm 31 carried by a vertically-reciprocated cross-head engages the arm 13 at the lowest point of its downward stroke. The arm 31 is mounted on a spindle which is journaled in the cross-head 22 and carries an arm 32. The cross-head 22 also carries a sleeve 24 fitting closely and working in the tobacco container 1 and containing a piston 25 in the form of a rectangular frame. The piston 25 is reciprocable in the sleeve 24 and is engaged resiliently by the arm 32. In action, the tobacco portions fed into the casing 1 through a. hopper 2 are compressed, on the descent of the sleeve 24, by the action of the balance-weight 33 through the medium of the arms 14, 13, 31 and 32, and the piston 25. Should the quantity of tobacco in the container 1 be abnormal the correspondingly abnormal position of the piston 25 and hence of the lever 13, 14. 15 on compression of the tobacco produces an adjustment of the position of the stud 9 in the slot 10 and hence a compensating adjustment in the size of the tobacco portion next fed to the container. The lever 13, 14, 15 is locked during the reciprocation of the sleeve 24 by a cam-actuated pawl 19 engaging a toothed sector 20 on the arm 15. The tobacco in the container 1 is divided into portions by an oscillating knife 3. As shown in Fig. 7 the invention is applied to a construction in which tobacco is showered down into a channel having guide-plates such as 44 and formed by two spaced vertical belts 41 and a horizontal belt 43. After each delivery the tobacco in the channel is pressed by a rod or roller 46 reciprocated bodily in a vertical plane by rods 49, 54, the belts 41, 43 being moved forward 1/5 th of the length of the plates 44 during each reciprocation. The rod or roller 46, which is tilted upwards in the direction of movement of the belts 41, 43 to correspond with the contour of the tobacco in the channel, is pivoted at 47 to the rod 49 and at 57, by means of a pin 50 engaging a rectangular slot, to an arm 51 mounted on a spindle 52. The spindle 52 is carried in a bracket fixed to the rod 54 and carries an arm 58 which engages, during the pressing action on the tobacco, the arm 13 of the mechanism shown in Fig. 2. The movements of the levers 31, 32, Fig. 2, and 51, 58, Fig. 7, are limited by stops such as 55, 56, Fig. 7. Specification 215,388 also is referred to.