Maintenance vehicle and method for measuring and maintaining the

Details Maintenance vehicle and method for measuring and maintaining the Maintenance vehicle and method for measuring and maintaining the

1994-12-22

1997-02-25

Morano, S. Joseph

Railways

Track layers

104 72, 335231, E01B 3500

Patent

active

056050992

ABSTRACT:
A maintenance vehicle and associated method for measuring and correcting the level of a railroad track in a single pass. An instrument carriage, or frog, is towed by and in fixed relationship to the maintenance vehicle. The frog carries at least one inclinometer to measure at least one of longitudinal level and crossfall. As the vehicle periodically stops to work the track e.g. tamping or stoneblowing), the inclinometers are provided with the settling time necessary for accurate readings. In an additionally disclosed method, the track is measured and modeled prior to working using a primary measurement system and is then measured and modeled a second time while the track is worked using the frog.

REFERENCES:
patent: 3594912 (1971-07-01), Sauterel
patent: 3821853 (1974-07-01), Plasser et al.
patent: 4155176 (1979-05-01), Goel
patent: 4173073 (1979-11-01), Fukazawa et al.
patent: 4442709 (1984-04-01), Waters
patent: 4497255 (1985-02-01), Theurer
patent: 4574704 (1986-03-01), Cicin-Sain
patent: 4673854 (1987-06-01), Patton et al.

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