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US 4,046,268 AGranted
Hopper door actuating mechanism
AssigneePullman Incorporated
InventorFranklin P. Adler
Life of this patent
Estimating the term…
Abstract
A bottom dump hopper car having outwardly swinging clamshell doors includes a locking mechanism for maintaining a door in closed position by means of a stop and bracket arrangement. A vertically moveable arm is actuated to disengage the locking mechanism whereupon the door can swing outwardly as the arm swings in an outward path which is controlled by a ground mounted tripping mechanism.
Claims12
A railway hopper car having a pair of laterally spaced bottom discharge openings,
- doors pivotally connected to said car for swinging movement from a closed position over said openings outwardly to an open position, the improvement of a door actuating and locking mechanism for each door comprising;
- an arm including means pivotally connecting said arm to said car for swinging movement from a vertically extending lock position laterally outwardly to an unlock position,
- a link pivotally connected to said arm and to said door.
- said link having a stop element connected thereto,
- a stop bracket supported on said car engaged by said link stop in the lock position to lock said door against outward swinging movement,
- said means pivotally connecting said arm to said car providing for limited vertical movement thereof, and
- actuating means operable to move said arm verticaly thereby disengaging said link stop from said stop bracket and to swing said arm and door outwardly to an open position.
4 more elements
Dependencies are inferred from the claim text.