Bottom discharge hopper structures

Details Bottom discharge hopper structures Bottom discharge hopper structures

B - Operations, Transporting

61

D

105/123

B61D 7/02 (2006.01) B61D 7/30 (2006.01) B65D 90/58 (2006.01)

Patent

CA 1108473

ABSTRACT OF THE DISCLOSURE A hopper car structure having a hopper body with a discharge opening at the bottom. A pivotally hung door having an arcuate base plate normally closes said opening and an arm is pivotally mounted on the door. A roller is carried by the arm on its free end and is intended to engage a ramp. The arm, in the closed condition of the door, has an abutment surface thereof spaced downwardly from an abutment surface of the door. When said roller engages an upwardly inclined ramp, the arm pivots upwardly with respect to the door until the abutment surface of the arm engages the abutment surface of the door. The door and arm then swing together about the pivotal mountings of the door to the open position of the door. The arm is locked against movement while the door is in its closed position and the abutment surface of the arm is spaced below the abutment surface of the door.

297943

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