GB953861A - Improvements in or relating to continuous rod cigarette-making machines - Google Patents

Abstract

953,861. Feeding tobacco. D. W. MOLINS, J. E. MORRIS, and MOLINS MACHINE CO. Ltd. April 14, 1960 [April 17, 1959], No. 13190/59. Heading A2C. A continuous rod cigarette making machine comprises means 16 to impel cut tobacco into a duct 19 and at an angle thereto, suction means at the entrance to the duct, a second duct 24 communicating with the suction means, and a pump 23 to draw an air current through the means 16 and duct 24 to turn the tobacco particles, which are fed by a fast-rotating picker roller 13, through an angle into the entry of the duct 19. The duct 19 terminates at one portion of a conveyer 41 located adjacent a suction chamber 22 from which air is drawn by a pump 32 via a duct 33. The tobacco particles are thus accelerated through the duct 19 and are retained on the conveyer 41 by the airflow through said one portion, and by the airflow from atmosphere through another portion of the conveyer located beyond the duct 19. Substantially the whole of the air drawn through the pump 32 is discharged through a conduit 34 to the atmosphere, whereas substantially the whole of the flow through pump 23 is drawn into the suction means 16 and duct 19 together with a substantial proportion of fresh air from atmosphere. In the construction shown, pump 32 discharges through a dust separator 39 to a battery of cyclones 35. A dust extractor 25 is also provided in the duct 24. Conduits 36, 40 lead from the extractors to the ducts 33 and 19 respectively for the respective passage of dust and shorts. The air flow from pump 23 passes to a manifold 27, thence to a diffuser 28, and discharges through a louvred expanded-metal cover in a direction towards a perforated plate 37 adjacent the means 16. Chambers 30 and 38, located as shown, serve to receive any shorts. Specifications 895,733, 909,222 and 916,141 are referred to.