Dragee-making drum

Details Dragee-making drum Dragee-making drum

1982-07-14

1984-08-07

McIntosh, John P.

Coating apparatus

Edible base or coating type

Tumbling particulate work

118 24, B05C 500

Patent

active

044637039

ABSTRACT:
A dragee-making drum, whose axis of rotation is at least approximately horizontal, has an at least approximately cylindrical shell and two at least approximately frustum-shaped end wall portions adjoining either end of the shell. These end wall portions extend into the space enclosed by the shell and terminate in annular zones whose axial distance from one another is considerably smaller than the axial length of the shell. It is thereby achieved that the dragee-making material is spread between the frustum-shaped end wall portions. This gives rise to frictional forces which, in addition to the frictional forces that are caused by gravity and are the only forces having effect in known dragee-making drums, tend to entrain the dragee-making material in an upward direction as the drum rotates. Consequently, at a given speed of rotation of the dragee-making drum, the dragee-making material ascends further and above all more uniform, in order to then finally spill down again.

REFERENCES:
patent: 550999 (1895-12-01), Otten et al.
patent: 2807230 (1957-09-01), Brammar
patent: 3874092 (1975-04-01), Huttlin

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