Method for tamping and leveling track

Details Method for tamping and leveling track Method for tamping and leveling track

1974-12-19

1976-04-13

Song, Robert R.

Railways

Track layers

Tamper

104 7R, E01B 2717

Patent

active

039496783

ABSTRACT:
In a mobile track tamping and leveling machine a controlled degree of ballast compaction is obtained at each tie in proportion to the track level error by connecting a pressure control valve to a track level error pickup and transmitting device to control the pressure on the tamping tools continuously in proportion to a maximum error signal received from the device while the track is held at the leveled position by a reference against upward pressure of the tampered ballast.

REFERENCES:
patent: 3605626 (1971-09-01), Stewart
patent: 3807311 (1974-04-01), Plasser et al.

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