Patent ID: 6618963
Filing Date: 2003-09-16
Classification: E01B

Abstract:
A track maintenance machine comprising(a) a machine frame having undercarriages for moving the machine frame in an operating direction along a track, (b) a track scanning unit adjustably connected to the machine frame and having flanged rollers for moving the track scanning unit along the track, (c) a satellite receiver connected to the machine frame, the satellite receiver having (i) an antenna with an antenna center, (d) a measuring device for monitoring the position of the antenna center relative to the track scanning unit with respect to the following parameters: superelevation (&bgr;), transverse displacement (d) perpendicular to a longitudinal extension of the machine frame and vertical distance (a), and (e) a computer for a computed repositioning of the antenna center relative to a reference point of the track scanning unit.