Gravity wedge for a slackless railcar connector assembly
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United States of America Patent
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Nov 12, 1996
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N/A
app pub date -
Apr 10, 1996
filing date -
Nov 2, 1994
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Abstract
When slack-free railcar connector assemblies are placed under very high tensile loading, the connector assembly components will stretch and allow a typical 'rigid' gravity wedge to descend into a fully seated position between the components and lock-in the tensile loads. The locked-in loads become additive in nature when successively encountered compressive loads are experienced by the connector assembly, thereby increasing the lateral drawbar angling forces, as well as accelerating coupling component wear. The wedge component of the present invention includes a means for vertically supporting and retaining the wedge in a holding position slightly above the normally fully seated position during the tensile loading, thereby eliminating the build up of tensile forces in the connector assembly.
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