Railroad spring frog assembly

Details Railroad spring frog assembly Railroad spring frog assembly

1997-05-01

1998-09-22

Morano, S. Joseph

Railway switches and signals

Vehicle-energy actuation

Continuous-rail frogs

246468, E01B 714

Patent

active

058102981

ABSTRACT:
An improved railroad trackwork spring wing frog assembly is provided with multiple rail-closer subassemblies, preferably of the nested and counter-wound compression spring-type, that co-operate with the assembly spring wing rail, and that are laterally spaced-apart with respect to each other along the angled rail portion of the frog assembly spring wing rail.

REFERENCES:
patent: 501070 (1893-07-01), Higgins
patent: 505022 (1893-09-01), Boyd
patent: 627438 (1899-06-01), Partington
patent: 877562 (1908-01-01), Graham
patent: 930709 (1909-08-01), Whiteman
patent: 4624428 (1986-11-01), Frank
patent: 5544848 (1996-08-01), Kuhn et al.

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