B - Operations – Transporting – 60 – P
Patent
B - Operations, Transporting
60
P
298/12, 105/123
B60P 1/00 (2006.01) B60P 1/56 (2006.01)
Patent
CA 1094606
ABSTRACT OF THE DISCLOSURE A hopper gate and pneumatic actuating mechanism for controlled discharge of bulk materials from a bottom-unloading vehicle are described. The hopper gate comprises an arcuate closure plate pivotally mounted by wedge shaped end plates below a rectangular hopper opening, said hopper opening having one edge defining the end of a hopper end elevated higher than the opposed edge defining the other hopper end wall. The pneumatic actuating mechanism comprises a pair of opposed air bags selectively expanded by an air supply and operatively connected to the closure gate by a linkage system for opening and closing the gate.
299902
Alforge Metals Corporation Limited
Fors Arne I.
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