Railroad trackwork intersections
AssigneeABC Rail Products Corporation
InventorsKeith Young, Stephen R. Kuhn, Joan Q. Xia, Thomas S. Baker, Jr.
Life of this patent
Estimating the term…
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.
Claims11
In a railroad trackwork intersection co-operating with a pair of railroad trackwork traffic rails and having intersecting traffic rail alignments, in combination:
- a flange-bearing frog subassembly having intersecting railcar wheel flangeways that each have a flangeway wheel flange support surface of uniform elevation throughout the frog subassembly planform;
- base plate means having a fixed position relative to said flange-bearing frog assembly;
- a trackwork intersection traffic rail secured to said base plate means at a fixed position and in abutting relation to said flange-bearing frog subassembly;
- an easer subassembly secured to said base plate means in abutting relationship to said flange-bearing frog subassembly, positioned parallel to said trackwork intersection traffic rail, and having a sloping railcar wheel flange support surface aligned parallel to said trackwork intersection traffic rail,
- said easer subassembly being secured to said base plate means wholly independently of said trackwork intersection rail, and said easer subassembly railcar wheel flange support surface abutting said flange-bearing frog subassembly flangeway wheel flange support surface, having a slope in the approximate range of from 1 inch rise for each 20 running feet to 1 inch rise for each 10 running feet, and having a rise of approximately 1 inch.
Dependencies are inferred from the claim text.