Importance

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Abstract

Apparatus for separating longer tobacco particles from shorter tobacco particles has an elongated vibratory trough for the advancement of a stream containing a mixture of shorter and longer particles from a delivering conveyor to a collecting receptacle. The upper side of the bottom wall of the trough is formed with longitudinally extending depressions which receive and align the particles of the advancing stream, and the bottom wall is formed with one or more transversely extending slots which extend across the depressions and permit shorter particles to descend into a second trough from which the shorter particles return into the distributor of a cigarette rod making machine. The properly aligned longer particles advance across the slot or slots and enter the receptacle. The slot or slots make oblique angles with the direction of advancement of particles along the bottom wall of the vibratory trough to ensure that any particles which happen to be caught in a slot are moved sideways and out of the way into a third trough so that the next-following shorter particles can enter the respective slot or slots. The stream consists mainly of longer particles and is obtained as a result of classification of a mixture of shorter and longer particles in the distributor.

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First Claim