Mobile track tamping machine

Details Mobile track tamping machine Mobile track tamping machine

1976-01-19

1977-08-23

Spar, Robert J.

Railways

Track layers

Tamper

E01B 2716

Patent

active

040432718

ABSTRACT:
A mobile track tamping machine has a vertically movable tamping tool assembly with pairs of tamping tools for tamping ballast under the track ties and an additional tamping tool reciprocable in the direction of the tie ends to box in the tamped ballast, as well as a vibratory surface tamper for tamping the ballast adjacent the tie ends. The additional tamping tool and the surface tamper are associated with each other in closely adjacent relationship next to the tie ends, the vibratory force of the surface tamper reaching at least to, preferably over the entire, reciprocatory path of the additional tamping tool.

REFERENCES:
patent: 2969749 (1961-01-01), Plasser et al.
patent: 3735708 (1973-05-01), Plasser et al.
patent: 3965822 (1976-06-01), Stewart

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