Tobacco – Cigar or cigarette making – Including cooperating surfaces to induce rolling
Patent
1978-11-13
1980-12-02
Michell, Robert W.
Tobacco
Cigar or cigarette making
Including cooperating surfaces to induce rolling
131 94, A24C 547
Patent
active
042365350
ABSTRACT:
A filter cigarette making machine wherein two plain cigarettes of unit length are connected to a coaxial filter plug of double unit length therebetween by an adhesive-coated uniting band which is convoluted around the filter plug and the inner ends of the plain cigarettes. The machine has a rotary drum-shaped draping conveyor and a heated stationary block-shaped rolling device adjacent to the peripheral surface of the conveyor to normally define therewith a gap of a width slightly less than the diameter of a group consisting of two coaxial plain cigarettes and a filter plug therebetween. Successive groups, each of which carries a non-convoluted uniting band, are fed into the gap by moving sideways whereby the groups roll about their own axes and the uniting bands are converted into tubular envelopes. A parallel motion automatically retracts the rolling device from the draping conveyor when the prime mover of the machine is arrested whereby the groups between the conveyor and the rolling device are free to leave the machine by gravity. This insures that filter plugs which are sensitive to heat cannot adhere to or contaminate the peripheral surface of the draping conveyor and/or the adjacent surface of the rolling device. The parallel motion is actuated by a double-acting pneumatic cylinder and piston unit which receives pressurized fluid by way of a valve whose solenoid is controlled by a tachometer generator which monitors the speed of the draping conveyor.
REFERENCES:
patent: 3067754 (1962-12-01), Pinkham et al.
patent: 3212507 (1965-10-01), Schubert
patent: 3483873 (1969-12-01), Hinzmann
patent: 3527234 (1970-09-01), Hinzmann
patent: 3583546 (1971-06-01), Koop
patent: 3730811 (1973-05-01), Wendt
patent: 3794048 (1974-02-01), Molins et al.
patent: 3962957 (1976-06-01), Hinzmann
Berlin Herbert
Schmidt Rolf
Hauni-Werke Korber & Co. KG
Kontler Peter K.
Michell Robert W.
Wallen Thomas
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