Railway hopper car door frame assembly

Details Railway hopper car door frame assembly Railway hopper car door frame assembly

1975-07-03

1978-08-01

Hoffman, Drayton E.

Metal fusion bonding

Process

With shaping

105280, 29469, 228178, 228182, 228212, B23K 3102, B23K 3704, B61D 718, B61D 772

Patent

active

041038177

ABSTRACT:
A door frame assembly process for conventional railway hopper car discharge openings. Five individual frame components are formed of plate or rolled angle members, and are assemblable in a jig. One dimension of the assembly is defined by the predetermined length of two of the main components, while the other dimension is adjustable in the jig. The door closure surface forming member is a separate component, and may be adjustably positioned with respect to the other four components before being affixed thereto.

REFERENCES:
patent: 1549251 (1925-08-01), Geyer
patent: 1953014 (1934-03-01), Hankins
patent: 2341612 (1944-02-01), Hankins
patent: 2519529 (1950-08-01), Wine
patent: 2589468 (1952-03-01), Wine
patent: 2591924 (1952-04-01), Dorey
patent: 2712289 (1955-07-01), Dorey
patent: 2784679 (1957-03-01), Wine
patent: 3516147 (1970-06-01), Seedorff et al.

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