A variable diameter fastener 30 for a railway rail fastening assembly comprises a shaft 32, a first end 32a of the shaft 32 being configured for placement in an underlying foundation and a second end 32b of the shaft 32 being configured for engagement with the fastening assembly. The shaft 32 comprises a variable diameter portion between the first and second ends 32a, 32b. The variable diameter portion has a diameter that varies along a longitudinal axis of the shaft 32 such that an outer surface of the variable diameter portion is convex in a plane containing the longitudinal axis of the shaft 32.
A variable diameter fastener for a railway rail fastening assembly
2017-01-25
Patent
Electronic Resource
English
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