Tobacco – Cigar or cigarette making – Tobacco feeding
Patent
1986-03-14
1988-03-08
Millin, V.
Tobacco
Cigar or cigarette making
Tobacco feeding
131 841, 131 843, 131110, A24C 539
Patent
active
047293888
ABSTRACT:
A cigarette manufacturing machine having a shredded tobacco supply unit, a unit for wrapping the shredded tobacco, an air permeable conveyor belt extending from the supply unit and the wrapping unit for transferring a continuous layer of tobacco held by vacuum on the belt to the wrapping unit; the supply unit comprising a down-flow duct for shredded tobacco, a well communicating with the bottom end of the down-flow duct, and an up-flow duct for the tobacco; the bottom end of the up-flow duct communicating with the well, and the top end of the up-flow duct being closed by the belt; and separating apparatus for separating unsuitable particles from the shredded tobacco for cigarette manufacture, with the separating apparatus having a duct substantially in the shape of an upside-down U; a tubular connection extending between the U-shaped duct and the well; a first end of the U-shaped duct communicating with a dump, and a second end of the U-shaped duct communicating with the down-flow duct.
REFERENCES:
patent: 2173087 (1939-09-01), Eissmann
patent: 3362414 (1968-01-01), Wochnowski
patent: 3871385 (1975-03-01), David
patent: 4600021 (1986-07-01), Mattei
patent: 4627447 (1986-12-01), Brackmann et al.
G.D Societa Per Azioni
Millin V.
LandOfFree
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