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. 10, 1978
Filed:
Apr. 07, 1975
Applicant:
Inventor:
Herbert Scheffel, Pretoria, Transvaal, ZA;
Assignee:
South African Inventions Development Corporation, Pretoria, Transvaal, ZA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61F / ; B61F / ; B61F / ; B61F / ;
U.S. Cl.
CPC ...
105168 ; 1051 / ; 1052241 ;
Abstract
A railway truck having at least one load-bearing member supported on two live axle wheelsets and including symmetrical suspension structure for damping hunting of the truck and wheelsets, the structure for each wheelset connected to bearings on the wheelset and two rods pivotally connected at each of its ends to the sub-frames for diagonally interconnecting the wheelsets to couple the yawing and lateral movements of the wheelsets. The sub-frame may be rigid to transmit moments to the wheelset or it may be a pinned structure. The suspension is said to cause inefficient gearing between the wheelsets.