Hopper car gate with a curved door
Hopper car gate with a laterally opening door
Hopper car gate with opposed double doors
Hopper car hatch cover
Hopper car outlet gate and seal
Hopper car outlet gate assembly
Hopper car outlet gate assembly with self cleaning gear and rack
Hopper car outlet gate valve
Hopper car outlet gate valve
Hopper car side construction and method
Hopper car with automatic discharge door mechanism
Hopper car with automatic discharge door mechanism
Hopper car with lading dislodgement fittings and method of...
Hopper cars with one or more discharge control systems
Hopper construction
Hopper discharge door operating mechanism
Hopper discharge outlet and method
Hopper discharge unit with sliding gate
Hopper door actuating mechanism
Hopper door and operating apparatus for a railway car