Automatic hopper unloading device

Details Automatic hopper unloading device Automatic hopper unloading device

1978-10-06

1982-03-30

Bertsch, Richard A.

Railway rolling stock

Special car bodies

Dumping

414387, B61D 704, B61D 718, B61D 732

Patent

active

043218725

ABSTRACT:
Apparatus for automatically unloading a hopper type car having at least one pair of doors whose individual doors swing open in opposite directions, each door having an end of a connecting rod attached thereto so that the rod is moved in the same direction as the doors of a pair are opened. The rod operates a control lever which acts against a return lever which is biased by a spring, the return force of the spring decreasing as the doors move further open such that the doors stay open of their own weight.

REFERENCES:
patent: 836395 (1906-11-01), Moore
patent: 3790008 (1974-02-01), Joubert

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