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US 4,583,685 AGranted
Rail anchoring
AssigneeThe Broken Hill Proprietary Company Limited
InventorsDennis M. Robb, Peter K. Wilson
Life of this patent
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AssigneeThe Broken Hill Proprietary Company Limited
InventorsDennis M. Robb, Peter K. Wilson
Estimating the term…
A rail anchoring clip and sleeper assembly comprising a sleeper and at least one rail anchoring clip arranged in use to longitudinally anchor a rail across the sleeper, the sleeper having means to locate the rail in a direction longitudinal of the sleeper and means to locate the clip in a direction lateral of the sleeper, the clip being constructed of resilient material and being shaped when resiliently deformed in use to define a first portion that bears tightly against the upper surface of one side of the rail foot, a second portion that bears tightly against the underside of the sleeper to compressibly anchor the rail onto the sleeper and a third portion in cooperative engagement with said means to locate said clip laterally of the sleeper, the positions of contact of the first, second and third portions with the rail and sleeper respectively being spaced apart in a direction longitudinal of the sleeper.
An assembly comprising a footed rail, a sleeper, baseplate means having an underside and secured on the sleeper for locating the rail in a direction longitudinal of the sleeper, at least one rail anchoring clip means constructed of resilient material for longitudinally anchoring the rail across the sleeper, channel means extending longitudinally in the sleeper for locating the clip means in a direction lateral of the sleeper, said channel means including a bottom having an upper surface, said clip means being shaped when resiliently deformed for engaging the sleeper and anchoring the rail across the sleeper and defining a first portion that bears tightly against the upper surface of one side of the rail foot, a second portion that bears tightly against the underside of the baseplate means to compressibly anchor the rail on to the baseplate, and a third portion in co-operative engagement with the upper surface of the bottom of said channel means, said first portion being in line contact with the rail foot, said second portion being in line contact with the baseplate means, and said third portion being in line contact with the said upper surface, said line contacts being spaced apart in a direction longitudinal of the sleeper, wherein the first portion line contact is positioned further inward of the rail foot relative to the second portion line contact, and the third portion line contact is horizontally spaced outwardly of the rail from the second line contact whereby any tendency of the first portion of the clip means to slip down the upper surface of the rail foot causes the clip to tend to rotate about the second portion line contact to cause the third portion at its line contact to bear more tightly against the sleeper channel bottom upper surface to resist clip means movement the second portion being intermediate the first and third portions along the contour of said rail anchoring clip.
A rail anchoring clip adapted for co-operation in use with a footed rail, a sleeper, and a baseplate, said baseplate being secured across the sleeper and including locating means for locating the rail in a direction longitudinal of the sleeper, a longitudinally extending channel means in the sleeper for locating the anchoring clip in a direction lateral of the sleeper, said anchoring clip being formed of a strip of resilient material and providing when resiliently deformed in use a first portion means for tightly bearing against the upper surface of one side of the rail foot, a second portion means for tightly bearing against the underside of the baseplate to compressibly anchor the rail onto the baseplate, and a third portion means for cooperatively engaging said channel means to locate said clip laterally of the sleeper, said first portion means being arranged to form line contact with the rail, said second portion means being arranged to form line contact with the underside of the baseplate, and the third portion means being arranged to form line contact with the upper surface of the bottom of the channel means in the sleeper, wherein the line contact of said first portion means is positioned further inward of the rail foot relative to the line contact of the second portion means, and the line contact of the third portion means is horizontally spaced outwardly of the rail from the line contact of the second portion means, whereby any tendency of the first portion means of said clip to slip down the upper surface of the rail foot causes the clip to rotate about the line contact of the second portion means thus causing the third portion means at its line contact to bear more tightly against the upper surface of the bottom of the channel means the second portion being intermediate the first and third portions along the contour of said rail anchoring clip.
An assembly comprising a footed rail, a sleeper, baseplate means having an underside and secured on the sleeper for locating the rail in a direction longitudinal of the sleeper, at least one rail anchoring clip means constructed of resilient material for longitudinally anchoring the rail across the sleeper, channel means extending longitudinally in the sleeper for locating the clip means in a direction lateral of the sleeper, said channel means including a bottom having an upper surface, said clip means being shaped when resiliently deformed for engaging the sleeper and anchoring the rail across the sleeper and defining a first portion that bears tightly against the upper surface of one side of the rail foot, a second portion that bears tightly against the underside of the baseplate means to compressibly anchor the rail on to the baseplate, and a third portion in co-operative engagement with the upper surface of the bottom of said channel means, said portions cooperating so that any tendency of the first portion of the clip means to slip down the upper surface of the rail foot causes the clip to tend to rotate about the second portion to cause the third portion to bear more tightly against the sleeper channel bottom upper surface to resist clip means movement the second portion being intermediate the first and third portions along the contour of said rail anchoring clip.
A rail anchoring clip adapted for co-operation in use with a footed rail, a sleeper, and a baseplate, said baseplate being secured across the sleeper and including locating means for locating the rail in a direction longitudinal of the sleeper, a longitudinally extending channel means in the sleeper for locating the anchoring clip in a direction lateral of the sleeper, said anchoring clip being formed of a strip of resilient material and providing when resiliently deformed in use a first portion means for tightly bearing against the upper surface of one side of the rail foot, a second portion means for tightly bearing against the underside of the baseplate to compressibly anchor the rail onto the baseplate, and a third portion means for cooperatively engaging said upper surface of the bottom of the channel means to locate said clip laterally of the sleeper, said portions cooperating so that any tendency of the first portion means of said clip to slip down the upper surface of the rail foot causes the clip to tend to rotate about the second portion means thus causing the third portion means to bear more tightly against the upper surface of the bottom of the channel means the second portion being intermediate the first and third portions along the contour of said rail anchoring clip.
Dependencies are inferred from the claim text.