Dual hopper car doors
First Claim
1. A railroad hopper car comprising a longitudinally extending hopper structure having a downwardly facing discharge opening,first and second doors hingedly connected to said hopper for downward and outward swinging movement to an open position;
- linkage means interconnecting said doors for conjoint movement; and
said first door comprising a channel shaped member including a first longitudinal plate portion and a first hopper adjacent flange extending from one end of the longitudinal portion and a first free end flange extending from the other end of the longitudinal portion, each flange having an inwardly extending first free end portion directed toward the other free end portion, and said second door comprising a channel shaped member including a second longitudinal plate portion and a second hopper adjacent flange extending from one end of the second longitudinal portion and a second free end flange extending from the other end of the second horizontal portion, the second hopper adjacent end flange having an outwardly extending second free end portion and said second free end flange having an inwardly directed second free end portion, whereby the inwardly directed end portions of each door at the distal end are adjacent when the doors are closed.
1 Assignment
0 Petitions
Accused Products
Abstract
A rapid dump hopper car includes a pair of relatively lightweight doors which are opened and closed sequentially from an overlapping position by means of a longitudinally extending actuating mechanism movably supported on the underframe of the car. The doors include longitudinally spaced and transversely extending hinge bracket structures which are connected to the center sill and side sill of the car for relative hinging movements. The bracket structures also include overlapping portions and interengageable bars securely supporting the adjacent edges of the door in interlocking relation. Each hinged bracket structure also includes a ball and socket connection with actuating links which are connected to the longitudinal operating mechanism.
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Citations
14 Claims
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1. A railroad hopper car comprising a longitudinally extending hopper structure having a downwardly facing discharge opening,
first and second doors hingedly connected to said hopper for downward and outward swinging movement to an open position; -
linkage means interconnecting said doors for conjoint movement; and said first door comprising a channel shaped member including a first longitudinal plate portion and a first hopper adjacent flange extending from one end of the longitudinal portion and a first free end flange extending from the other end of the longitudinal portion, each flange having an inwardly extending first free end portion directed toward the other free end portion, and said second door comprising a channel shaped member including a second longitudinal plate portion and a second hopper adjacent flange extending from one end of the second longitudinal portion and a second free end flange extending from the other end of the second horizontal portion, the second hopper adjacent end flange having an outwardly extending second free end portion and said second free end flange having an inwardly directed second free end portion, whereby the inwardly directed end portions of each door at the distal end are adjacent when the doors are closed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification