Method and machine for lowering a track
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United States of America Patent
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May 29, 2012
Grant Date -
Jan 28, 2010
app pub date -
Oct 8, 2009
filing date -
Apr 12, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
For the controlled lowering of a track, a longitudinal inclination of the track is determined at a rear tracing point of a measuring system and stored. For a length reaching back at least 10 meters, a current vertical profile is formed, and a rear compensation straight line is calculated which is superimposed upon the vertical profile and renders a target track position. The rear tracing point is guided by calculation along the rear compensation straight line, so that a compensation value for the position of the measuring chord ensues at a middle tracing point positioned between the rear tracing point and a front tracing point.
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