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Railroad-wheel trip

  • US 3,151,827 A
  • Filed: 11/23/1962
  • Issued: 10/06/1964
  • Est. Priority Date: 11/23/1962
  • Status: Expired due to Term
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1. A RAILROAD WHEEL TRIP, COMPRISING IN COMBINATION A FERROMAGNETIC RAIL SECTION INCLUDING A HEAD AND A BASE PORTION INTEGRALLY FORMED AT OPPOSITE ENDS OF AN UPSTANDING WEB PORTION, A RAILROAD WHEEL HAVING A FERROMAGNETIC FLANGE ADAPTED TO RIDE ON ONE LATERAL SIDE OF SAID HEAD, A MAGNET HAVING OPPOSITELY POLARIZED ENDS, AN ELECTRICAL WINDING SURROUNDING A PORTION OF SAID MAGNET, A POTTING OF SOLID NON-MAGNETIC ELECTRICALLY INSULATING MATERIAL ENCASING SAID MAGNET AND WINDING, THE POTTED ASSEMBLY BEING OF SUCH SIZE AS TO FIT BETWEEN SAID RAIL HEAD AND BASE WITHIN THE VERTICAL LIMITS OF SAID WEB, ELECTRICAL LEADS OF SAID WINDING EXTENDING TO AN EXTERNAL SURFACE OF SAID POTTING, MEANS EXTENDING THROUGH SAID WEB SECTION AND THE POTTED ASSEMBLY FIXEDLY MOUNTING THE TWO PARTS TOGETHER, THE MAGNET BEING POSITIONED IN SAID POTTING SO THAT ONE END OF SAID MAGNET EXTENDS LATERALLY OUTWARDLY ON SAID ONE SIDE OF SAID HEAD, THE OTHER END OF SAID MAGNET BEING POSITIONED IN SUBSTANTIALLY DIRECT CONTACT WITH A PART OF SAID RAIL SECTION ABOVE SAID BASE SO AS TO TRANSFER ITS POLARIZATION THERETO, WHEREBY A POLARIZED GAP IS DEFINED BETWEEN SAID ONE SIDE OF SAID HEAD AND SAID ONE END OF SAID MAGNET, AND THE GAP BEING LOCATED SO AS TO BE MATERIALLY ALTERED BY THE TRAVERSAL OF SAID FLANGE ON SAID ONE SIDE OF SAID HEAD.

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