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:
Jan. 06, 1981
Filed:
Apr. 26, 1979
Jan D Holt, St. Charles, MO (US);
Robert K Neff, St. Louis, MO (US);
ACF Industries, Incorporated, New York, NY (US);
Abstract
In a railway car truck a transom is provided comprising a pair of tubes rigidly connected respectively to a pair of longitudinally extending side frames. The tubes are longitudinally and vertically aligned and are located below a bolster which extends between the side frames above the transom. A bearing rigidly attached to one of the tubes extends within the other of the tubes. The external surface of the bearing is provided with low friction material to allow the side frames to rock in respective vertical planes about a transverse axis as ups and downs in the track are transversed. However, the transom resists the tendency for the side frames to move longitudinally with respect to each other, and thus maintains the truck in tram.