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:
Sep. 20, 1988
Filed:
Nov. 24, 1987
Keith L Jackson, Creve Coeur, MO (US);
Richard B Polley, St. Charles, MO (US);
Dallas L Schmitt, Belleville, IL (US);
GSI Engineering, Inc., St. Louis, MO (US);
Abstract
Apparatus for tramming the wheel and axle assemblies of railway trucks having sideframes and a transverse frame member supported on sideframes, the sideframes being supported at their ends on structures carried on the end portions of the axles, including a fixture having apertures defining the trammed positions of the journal boxes, vertical axis cylindrical apertures in the end portions of the sideframes adapted for general vertical alignment with the fixture apertures, cylindrical bushings rotatably mounted in the sideframe apertures and having off center internal apertures, pins rotatably mounted in the bushing internal apertures and having off center internal apertures, pins rotatably mounted in the bushing internal apertures and having an eccentric extension at their lower ends, whereby irrespective of misalignment of the sideframes, the pin extensions are alignable with and insertable in the fixture apertures, said bushings and pins being lockable in the resulting trammed positions and their eccentric extensions, the axle supported structures being formed with apertures for closely receiving the pin eccentric extensions and thereby fixing the wheel and axle assemblies in trammed relation.