Foot support modification for railroad rails
AssigneeSchwihag AG
InventorsArmin Heim, Otto Morgenschweis
Life of this patent
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Abstract
A sole, ribbed or slide chair plate for a foot of a railroad rail provided with two spaced flat bearing surfaces between which is a concave surface allowing for non tipping of the rail when in place if the bottom of the rail has a convex surface and a shim fitting on top of the plate having a top surface composed of two spaced flat bearing surfaces between which is a concave surface.
Claims11
A foot support comprising a plate having a surface which receives a bottom of said rail foot, said surface defining two spaced flat surfaces in a common plane between which said two spaced flat surfaces in a common plane is a concave arc surface extending only transversely to the longitudinal direction of the rail and which said spaced flat surfaces in a common plane contact said foot and upon which rests two spaced longitudinal edge bottom surfaces of said foot, the bottom surfaces of said foot having a convex bottom surface between said two spaced longitudinal edge bottom surfaces of said foot, said convex bottom surface of said loot fitting within the concave surface of said plate without said concave and convex surfaces touching.
A foot support comprising a plate having a surface with downwardly extending spaced sides extending transversely to the longitudinal direction of the rail and a shim for fitting over said surface, said shim having a top surface for contacting a portion of a bottom of said rail foot and defining a surface having two spaced flat surfaces in a common plane between which said two spaced flat surfaces in a common plane is a concave arc surface extending only transversely to the longitudinal direction of the rail and downwardly extending lugs to fit over said downwardly extending spaced sides of said plate surface, said lugs extending transversely to the longitudinal direction of said rail to prevent movement of the shim in the longitudinal direction of the rail, said spaced flat surfaces in a common plane contacting said toot and upon which rests two spaced longitudinal edge bottom surfaces of said foot, the bottom surfaces of said foot having a convex bottom surface between said two spaced longitudinal edge bottom surfaces of said foot, said convex bottom surface of said foot fitting within the concave surface of said shim without said concave and convex surfaces touching.
Dependencies are inferred from the claim text.