Fastening rail in railway slide chair assembly

Details Fastening rail in railway slide chair assembly Fastening rail in railway slide chair assembly

2011-01-25

2011-01-25

Morano, S. Joseph (Department: 3617)

Railway switches and signals

Switches

Chairs and plates

C238S304000, C238S310000

Reexamination Certificate

active

07874527

ABSTRACT:
A rail fastening apparatus fastens an inner stock rail in a railway slide chair assembly. The apparatus includes a base plate. The base plate has on one face a rail seat region on which the inner stock rail sits when the slide chair assembly is in use. A resilient rail fastening clip restrains the inner stock rail. A locating means locates the rail fastening clip in a first position. A loading means vertically deflects the clip so as to produce a load in a toe portion of the clip. A second locating means holds the rail fastening clip in a second position different from the first position such that the toe portion of the clip sits on a ramp of the loading means in a preload condition in which the clip does not bear on the rail

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