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:
Dec. 04, 1979
Filed:
Nov. 02, 1978
Applicant:
Inventors:
Karl Holter, Witten, DE;
Gustav Wiegard, Witten, DE;
Assignees:
Mannesmann Aktiengesellschaft, Dusseldorf, DE;
Gustav Wiegard Maschinenfabrik, Witten, DE;
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G01B / ;
U.S. Cl.
CPC ...
33182 ; 3314 / ; 3314 / ; 3317 / ;
Abstract
A parallelogram-like collapsible frame has centering rolls in opposite corners for engaging one roll each per track and across the track path; these centering rolls establish a center line of reference on which one or two, straight or curved rulers are pivoted to engage other track rollers, and the angle of pivoting represents the radius of curvature or a deviation from a desired radius.