Adjustable boxcar devices

Details Adjustable boxcar devices Adjustable boxcar devices

1979-12-13

1982-03-16

Downey, Kenneth

Movable or removable closures

With means mounting closure for reciprocation

Revolving guide component; e.g., roller or gear

49501, E05D 1302

Patent

active

043194311

ABSTRACT:
The present invention discloses a new and useful door device for use in railroad box cars which is adjustable as to height and width including first tubular frame means and cooperative second tubular means where the first frame means is adapted to receive the second frame means, where the first frame is adjustable horizontally in relation to the second frame means, and roller assembly means of horizontally adjustable length and adapted to be received by the first and second frame means having first and second roller means where the vertical height of said first and second frame means are adjustable vertically in relation to the roller assembly means.

REFERENCES:
patent: 2310539 (1943-02-01), Nelson et al.
patent: 3127963 (1964-04-01), Beauchamp
patent: 3996643 (1976-12-01), Steigerwald

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