A measuring device for checking the dimensional accuracy of the track width of curved transport tracks formed by paired rollers lying on a radius of curvature equidistantly from each other at elevated temperatures, comprising:
- (A) carrier means placeable into a transport track and moveable along the transport track, said carrier means including:
- (a) a plurality of latterally spaced elongated members, each of said members having a height corresponding to the track width, a length providing continuous spanning of at least two successive roller pairs when said members are placed in said transport track, and contours corresponding at least approximately to the curvature of the transport track;
- (b) connecting means extending intermediate each of said elongated members to interconnect said members one to the other;
- and
- (c) bar means intermediate said elongated members and connecting means for permitting the carrier means to have a height reducible by external effects;
- (B) at least two displacement sensing means on at least one of said members and spaced apart at a distance dependent on the track width, said displacement sensing means being located on a radius of the circle of curvature of said track and continuously at a perpendicular orientation to said curved transport track when moving along said track on said carrier means for checking the dimensional accuracy of the track width perpendicular to said curved transport track.