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:
Oct. 08, 1985
Filed:
Jul. 23, 1984
Dale A Baker, Waukesha, WI (US);
Harnischfeger Corporation, Milwaukee, WI (US);
Abstract
On a truck comprising tandem flangeless wheels riding on a single rail and four guide rollers rotatable on vertical axes, two at each side of the rail, crabbing and turning misalignments of the wheels are diagnosed from information about which rollers rotate during truck movement in each direction along the rail. For obtaining that information, a small reflective spot is delineated at an eccentric location on the upper surface of each roller, and a photoelectric sensor for each roller, magnetically attached to the truck, has its optical axis aimed at the orbit of the spot to issue an electrical impulse for each roller rotation. A signal device connected to each sensor issues a perceptible signal for each impulse. The signal devices are at a single console to facilitate comparisons of the number of revolutions made by the several rollers during a truck movement.