Method and apparatus for unloading ribbon rails from rail cars

Details Method and apparatus for unloading ribbon rails from rail cars Method and apparatus for unloading ribbon rails from rail cars

2006-01-03

2006-01-03

Le, Mark Tuan (Department: 3617)

Railways

Track layers

C414S338000, C414S339000, C414S529000

Reexamination Certificate

active

06981452

ABSTRACT:
A method and apparatus for unloading long ribbon rails which are carried on a transport car on bunks which hold the rails in four or five different tiers each containing eight to ten rails. A special railcar is equipped with a gantry crane which feeds the rails from the bunks into power driven thread boxes. The thread boxes grip the rails and feed them rearwardly onto the railway bed. After the first two rails have been unloaded side by side, the next pair are fed into the thread boxes. The thread boxes feed these rails out of the bunks as the train is moved forwardly at the same speed as the rails are fed rearwardly so that the rails are unloaded end to end with the first pair of rails. The railcar has retractable over the road wheels that allow it to be towed on the roadway to the site of the rail transport car.

REFERENCES:
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patent: 5222435 (1993-06-01), Theurer et al.
patent: 5289780 (1994-03-01), Bounds
patent: 5520497 (1996-05-01), Hertelendi et al.
patent: 5630365 (1997-05-01), Hertelendi
patent: 5762464 (1998-06-01), Hertelendi
patent: 5961271 (1999-10-01), Theurer et al.

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