Railways – Track layers – Sluer
Patent
1982-11-09
1985-02-05
Reese, Randolph
Railways
Track layers
Sluer
104 7B, 33 1Q, 33287, E01B 3300
Patent
active
044972555
ABSTRACT:
A mobile track alignment machine comprises a track alignment tool positioned in a track section to be aligned, a drive operating the tool for alignment of this track section, a control for the drive and a reference system for operating the drive control in response to an operating signal emitted by the reference system. The reference system includes a reference line extending along the track and three rail sensing elements each determining a respective ordinate of an arc in which the track extends, one of the rail sensing elements being arranged in the range of the track alignment tool means in the second track section, a second one of the rail sensing elements being arranged in a leading portion of the first track section adjacent the second track section, a third one of the rail sensing elements being arranged in a trailing portion of the first track section adjacent the leading first track section portion and an additional rail sensing element in the trailing portion, the additional rail sensing element being associated with a reference line sensing element for determining residual track alignment errors, the reference line sensing element associated with the additional rail sensing element emitting a correcting operating signal corresponding to the residual alignment error.
REFERENCES:
patent: 3343496 (1967-09-01), Warnick
Foster Glenn B.
Franz Plasser Bahnbaumaschinen - Industriegesellschaft m.b.H.
Kelman Kurt
Reese Randolph
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