Railroad frog

Details Railroad frog Railroad frog

1991-12-13

1994-05-17

Huppert, Michael S.

Railway switches and signals

Crossings, frogs, and mates

Outer-tread-supported wheel

246468, E01B 710

Patent

active

053120752

ABSTRACT:
A railbound manganese frog assembly having ramps and grooves adapted to receive the false flange formed on the rim of a worn railroad car wheel to prevent the flange from impacting components of the frog assembly.

REFERENCES:
patent: 718297 (1903-01-01), Angerer
patent: 902589 (1908-11-01), Lucas
patent: 1120558 (1914-12-01), Steedman
patent: 3480072 (1969-11-01), Heim et al.
patent: 4362282 (1982-12-01), Frank
patent: 4469299 (1984-09-01), Csontos
patent: 4624428 (1986-11-01), Frank
patent: 4637578 (1987-01-01), Frank

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