Apparatus for tramming railway trucks

Details Apparatus for tramming railway trucks Apparatus for tramming railway trucks

E - Fixed Constructions

04

B

105/52

E04B 2/00 (2006.01) B61F 5/52 (2006.01)

Patent

CA 1316400

Case 7187 ABSTRACT OF THE DISCLOSURE The method and apparatus for tramming the wheel and axle assemblies of railway trucks having sideframes and a transverse frame member supported on sideframes supported at their ends on structures carried on the end portions of the axles, include 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 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, the bushings and pins and their eccentric extensions being lockable in the resulting trammed positions 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.

574634

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