Method of tamping a plurality of ties simultaneously

Details Method of tamping a plurality of ties simultaneously Method of tamping a plurality of ties simultaneously

1996-02-21

1997-04-08

Morano, S. Joseph

Railways

Track layers

104 72, 104 12, E01B 2713

Patent

active

056177933

ABSTRACT:
A method of tamping a plurality of ties fastened to rails of a track comprises repeated cycles of a first tamping operation comprising the steps of lifting the track to a desired level and simultaneously tamping ballast under two groups of adjacent ties, each group consisting of at least two ties and the two groups being separated by at most two ties between the groups, and a second tamping operation independent of, and following, the first tamping operation, the second tamping operation comprising the step of tamping ballast under the ties between the two groups.

REFERENCES:
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patent: 3595170 (1971-07-01), Plasser et al.
patent: 3744428 (1973-07-01), Plasser et al.
patent: 4090451 (1978-05-01), Theurer
patent: 4224874 (1980-09-01), Theurer
patent: 4881467 (1989-11-01), Theurer
patent: 5379700 (1995-01-01), Theurer

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