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Plate belt conveyor

  • US 4,697,696 A
  • Filed: 09/23/1985
  • Issued: 10/06/1987
  • Est. Priority Date: 10/18/1984
  • Status: Expired due to Term
First Claim
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1. Plate belt conveyor for steep conveying comprising:

  • mutually overlapping plates being disposed on flat link chains and having a pitch which equals the spacing between successive chain links, each of said plates in the regions where they overlap being provided at their transverse edges at one end with an upward directed leg and at the other end with a roof-like arch from which a steeply downward directed leg extends, each said roof-like arch spanning the upward directed leg of the corresponding overlapped plate, each said downward directed leg together with said roof-like arch and said upward directed leg of the corresponding overlapped plate forming a pocket which opens when the conveyor belt reverses its direction of travel by passing around an end sprocket, each said lower end of the downward directed leg of the upper overlapping plate lying in a sealing manner on the corresponding lower overlapping plate when the upper and lower overlapping plates are arranged parallel to one another, each said lower end of the downward directed leg maintaining at most a slight spacing with the corresponding lower overlapping plate, each said lower overlapping plate at its one end having an upward arched bulging beginning directly behind a point where the lower end of the downward directed leg of the corresponding upper overlapping plate lies on the lower overlapping plate, the arched bulging being curved arcuately in cross-section wherein on mutual pivoting of said plates when the conveyor belt passes around the end sprocket, the sealing between the arched bulging and the lower end of the corresponding downward directed leg is maintained as the lower end of the downward directed leg pivots about the corresponding arched bulging, the pocket opening only after the lower end of the downward directed leg of the upper overlapping plate, passes an apex of the corresponding arched bulging.

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