Abstract: The present disclosure shows a security lock arrangement for a covered access opening. It shows a cable seal lock body housed in the cavity of a housing that is welded to a structure defining a covered access. The cable of the cable seal lock passes through a latch for the access opening cover and through the lock body from which it cannot be removed without destruction of the cable. A new cable is usable with the lock body permanently mounted to the covered access opening structure.

Abstract: A ring protector for preventing unauthorized access through the dome port openings of a railcar dome. The ring protector defines a plurality of approximately equally spaced holes. The ring protector has an opened position in which each of the dome port openings is in-line with one of the access holes and a closed position in which each of the port openings is not in-line with one of the access holes. The ring protector is adapted to be rotatable from the opened position to the closed position.

Abstract: A pneumatic outlet gate of a railroad hopper car has an valve member mounted for rotation in a discharge tube between open and closed positions. The valve member is an arcuate segment terminating laterally at edge faces. The edge faces are angled such that in the upper half of the discharge tube they always slant downwardly from the surface of the tube, while in the lower half of the discharge tube the edge faces face downwardly. An arrangement of stops and abutments prevents rotation of the valve member to a location where the edge faces could trap lading against the discharge tube. Accordingly, the edge faces are self-emptying.

Abstract: A pneumatic outlet gate of a railroad hopper car has an valve member mounted for rotation in a discharge tube between open and closed positions. The valve member is an arcuate segment terminating laterally at edge faces. The edge faces are angled such that in the upper half of the discharge tube they always slant downwardly from the surface of the tube, while in the lower half of the discharge tube the edge faces face downwardly. An arrangement of stops and abutments prevents rotation of the valve member to a location where the edge faces could trap lading against the discharge tube. Accordingly, the edge faces are self-emptying.

Abstract: A pneumatic outlet gate of a railroad hopper car has an valve member mounted for rotation in a discharge tube between open and closed positions. The valve member is an arcuate segment terminating laterally at edge faces. The edge faces are angled such that in the upper half of the discharge tube they always slant downwardly from the surface of the tube, while in the lower half of the discharge tube the edge faces face downwardly. An arrangement of stops and abutments prevents rotation of the valve member to a location where the edge faces could trap lading against the discharge tube. Accordingly, the edge faces are self-emptying.