Railway switch heel block

Details Railway switch heel block Railway switch heel block

1980-02-20

1981-08-11

Bertsch, Richard A.

Railway switches and signals

Crossings, frogs, and mates

Frogs

246435R, E01B 710

Patent

active

042830303

ABSTRACT:
Apparatus for providing the proper spread between the switch rail and stock rail in a railway switch which includes a heel block of unique design which assures accurate alignment of the parts of the switch heel block.

REFERENCES:
patent: 765526 (1904-07-01), Vaughan
patent: 1370792 (1921-03-01), Dorsey
patent: 1589954 (1926-06-01), Gerhard
patent: 2174367 (1939-09-01), Hoffman
patent: 3521053 (1970-07-01), Hayn et al.

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