Safety roller assembly for plug doors

Details Safety roller assembly for plug doors Safety roller assembly for plug doors

1977-09-19

1979-03-06

Downey, Kenneth

Movable or removable closures

Mounted for multidirectional or oblique movement

Initial or terminal movement transverse to sliding movement...

E05D 1510

Patent

active

041423283

ABSTRACT:
A safety roller assembly in a plug door for a railway car is disclosed which includes a safety roller traveling in a retaining guide with a recess being formed in the lower support surface of the retaining guide to receive a safety crank connected to the safety roller when the plug door is closed. A safety shoe is provided beneath the safety roller to prevent it from ever falling through the recess in the lower support surface.

REFERENCES:
patent: 3797170 (1974-03-01), Lemon
patent: 3913269 (1975-10-01), Ross, Jr.
patent: 4043078 (1977-08-01), Dyche

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