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. 11, 1978
Filed:
Jan. 06, 1976
Brian Michael Forster, Harthill, GB;
GKN Transmissions Limited, Erdington, GB;
Abstract
Wheel alignment testing apparatus for vehicles comprises a reference surface plate adapted to be attached to a wheel to be tested and sensing means for sensing the attitude of the reference surface plate. The sensing means includes feelers for contacting the reference surface plate, and a transducer associated with each feeler for providing a signal which represents the position of the feeler, the signals derived from the transducers being analysed by a circuit for giving an indication of the relevant wheel alignment parameters. The apparatus includes driven rollers on which the wheel under test are supported, the test being carried out with the vehicle's wheels rotating. The electric circuit includes means for compensating for any wobble of the reference surface plate if it is not properly aligned with the wheel to which it is attached.