Mobile track surveying apparatus

Details Mobile track surveying apparatus Mobile track surveying apparatus

1975-10-24

1977-06-07

Martin, Jr., William D.

Geometrical instruments

Straight-line light ray type

Alignment device

33 1Q, 33146, 33338, E01B 3508

Patent

active

040273970

ABSTRACT:
A mobile track surveying apparatus comprises two spaced-apart bogies. Track gage and superelevation measuring devices as well as track grade and lateral alignment measuring devices are mounted on the two bogies, the latter including a theodolite mounted on a carrier plate on one bogie and a target mounted on a carrier plate on the other bogie, the theodolite and target defining an optical reference line determining the grade and alignment of the track.

REFERENCES:
patent: 1032509 (1912-07-01), Scheider et al.
patent: 1457425 (1923-06-01), Busby
patent: 2832148 (1958-04-01), Rousse
patent: 3334593 (1967-08-01), Plasser et al.

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