Railroad trackwork intersections

Details Railroad trackwork intersections Railroad trackwork intersections

1997-08-29

1998-12-08

Le, Mark Tuan

Railway switches and signals

Crossings, frogs, and mates

Flange-supported wheel

246458, 246463, 246465, 246468, E01B 700

Patent

active

058458816

ABSTRACT:
A railroad trackwork intersection assembly such as a crossing intersection or a turnout intersection is provided with at least one flange-bearing frog subassembly which has railcar wheel flangeways of uniform depth throughout the frog planform that co-operate with trackwork traffic rails, with easer subassemblies that are positioned exterior to but abut the frog subassembly, that have sloping flange support surfaces, and that may be removed from or adjusted in the assembly without moving or adjusting either the frog subassembly or the co-operating trackwork traffic rails.

REFERENCES:
patent: 758964 (1904-05-01), Green
patent: 1249981 (1917-12-01), Malloch
patent: 1251123 (1917-12-01), Smith
patent: 1258670 (1918-03-01), Gordon
patent: 2214489 (1940-09-01), Strickland et al.
patent: 2361873 (1944-10-01), Rosebrook et al.
patent: 5746400 (1998-05-01), Remington et al.

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