DISCHARGE DOOR OPERATING MECHANISM

A hopper door opening and closing device for use on pivoted discharge doors and including a strut connected directly to the pivoted door and having an end connected arm and rotating shaft member. The shaft has an attached bell crank with a portion which extends outside the car and is actuated by a trackside tripping device to rotate the shaft and thereby open and close the discharge door. A pair of rotating shafts and associated door connecting members are utilized and interconnected by a four-member linkage arrangement which permits the discharge doors to be opened and closed from either side of the moving vehicle.