Spring rail frog

Details Spring rail frog Spring rail frog

1984-09-20

1986-11-25

Reeves, Robert B.

Railway switches and signals

Vehicle-energy actuation

Continuous-rail frogs

246468, B61L 1102

Patent

active

046244280

ABSTRACT:
A railroad spring frog assembly for trackwork installations includes a rigid rail and a flexible spring wing rail. The flexible spring wing rail is rigidly affixed between one end which engages a wing point rail and the other end which connects to a closure rail at the toe end of the frog support means. When a rail car enters the frog and a wheel flange engages the spring wing rail to pass between it and the long point rail the spring wing rail bends away from the long point rail to define a flangeway therebetweeen.

REFERENCES:
patent: 362158 (1887-05-01), Hope, Jr.
patent: 497455 (1893-05-01), Neafie
patent: 2174367 (1939-09-01), Hoffman

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