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METHOD OF AND APPARATUS FOR SORTING TOBACCO LEAVES

  • US 3,770,112 A
  • Filed: 09/16/1971
  • Issued: 11/06/1973
  • Est. Priority Date: 06/16/1971
  • Status: Expired due to Term
First Claim
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1. A sorting apparatus for sorting leaves and similar material, more particularly tobacco leaves, characterized by a separating device having parallel channels each provided with a spreading device for the leaf material in the longitudinal direction, by a subsequent first sorting station with a conveyor belt designed to hold individual leaves and a separating unit for foreign bodies, and by a second sorting station along said conveyor belt with a testing member for the quality of the individual leaves and a signalling member controlled by the testing member which actuates classification device for the leaves, said spreading device comprising a vibrating conveyor having several conveyor surfaces rising in the direction of movement, the steepness of the said conveyor surfaces decreasing in successive conveyor sections, and a last conveying section with a substantially horizontal conVeyor surface, and including a common vibrator for all said conveyor surfaces.

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