Railroad spring wing frog with hold-open and shock dampening...

Details Railroad spring wing frog with hold-open and shock dampening... Railroad spring wing frog with hold-open and shock dampening...

E - Fixed Constructions

01

B

E01B 7/14 (2006.01) B61L 5/02 (2006.01) E01B 7/02 (2006.01)

Patent

CA 2339690

An improved railroad trackwork spring wing frog assembly having a selectively releasable hold-open subassembly for the spring wing rail is provided with a combined compressible shock absorber and compression spring that are functionally connected to the assembly spring wing rail and to the assembly base plate, and that function to generate an opposing force in connection with opening movement of the spring wing rail and an augmented force in connection with closing movement of the spring wing rail.

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