| 摘要 |
An open top hopper car is provided with a plurality of hoppers having lower discharge openings. Underneath each hopper, a pair of hinged doors are swingable downwardly and outwardly to a discharging position by motor actuated mechanism. The actuating mechanism includes vertically extending levers pivotally connected to the hopper and interconnected to so that hinging movement of one lever causes hinging movement of the other lever and the levers are moved out of supporting engagement with the doors whereby the doors are opened by gravity. The levers are also provided with camming means at their lower edges which engage cams provided on the doors for moving the doors to the closed position upon rotation of the levers. The camming arrangement provides for an effective closing of the doors and maintains the same in their closed position.
|
