System and method for identifying point detection calibration prior to point detector lock-out and switch machine failure
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United States of America Patent
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Mar 14, 2017
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N/A
app pub date -
Jul 24, 2014
filing date -
Jul 24, 2013
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Abstract
A detection and indication system for use in a railway switch machine which utilizes one or more roller members which physically interact with a point detector bar coupled to one or more switch points to provide an indication of a point failure upon movement of the point detector bar a predetermined distance from an initial position. The system includes a mounting structure structured to be coupled to a housing of the switch machine and a first sensing device coupled to the mounting structure. The first sensing device is positioned and structured to detect movement of the point detector bar a second predetermined distance from the initial position, wherein the second predetermined distance is less than the first predetermined distance.
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