Tamping tool unit for tamping ballast

Details Tamping tool unit for tamping ballast Tamping tool unit for tamping ballast

2005-11-29

2005-11-29

Le, Mark T. (Department: 3617)

Railways

Track layers

Tamper

Reexamination Certificate

active

06968786

ABSTRACT:
A tamping tool unit for tamping ballast under a respective one of a succession of ties of a railroad track comprises a frame extending in a longitudinal direction, a pair of tamping tool levers mounted on the frame for pivoting about pivot axes in a plane extending in the longitudinal direction, a reciprocating drive connected to each tamping tool lever for pivoting the tamping tool lever, and a tamping pick at a lower end of each tamping tool lever. A guide on at least one of the tamping tool levers is provided for displacing the tamping pick in a direction extending perpendicularly to the pivot axis of the at least one tamping tool lever, and a fixing device is provided for fixing the tamping pick on the lower tamping tool lever end.

REFERENCES:
patent: 3396671 (1968-08-01), Roseberry
patent: 4576095 (1986-03-01), Theurer
patent: 4598645 (1986-07-01), Ganz
patent: 4773333 (1988-09-01), Theurer

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