The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 1983
Filed:
Mar. 09, 1981
Abstract
A measuring carriage for measuring the undulations and ripples of a worn rail head running surface is guided along the rail head by a pair of guide rollers laterally guiding the carriage along a portion of the gage side of the rail head which is not worn and a plurality of additional guide rollers selectively engageable with the running surface of the rail head for vertically guiding the measuring carriage along the running surface upon engagement therewith. The additional guide rollers include a pair of inner guide rollers, a pair of outer guide rollers and a pair of intermediate guide rollers spaced from each other in the operating direction. The pair of outer guide rollers defines a rigid measuring reference in the wave length of the longer undulations and they are spaced from each other a distance of 2 m. A respective lateral pair of the inner or intermediate guide rollers is selectively engaged with the running surface to define a rigid measuring reference in the shorter wave length of the ripples and these rollers are spaced from each other at least about 1/6th to 1/8th of the first-mentioned distance. A rail head running surface sensing element is vertically adjustably mounted on the measuring carriage substantially centered between the pairs of guide rollers.