System and method for identifying point detection calibration prior to point detector lock-out and switch machine failure

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...

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Bibliographische Detailangaben
Hauptverfasser: McQuistian, Kevin, Dowhy, Sean, Mariuzza, Jr., Peter J
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung: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.