Complex switch turn-out arrangements using proximity selection

  • US 5,590,856 A
  • Filed: 06/07/1995
  • Issued: 01/07/1997
  • Est. Priority Date: 10/28/1994
  • Status: Expired due to Term
First Claim
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1. An automatic method of controlling one or more turn-outs in a branching pathway, said pathway directing the movement of moving objects, the method comprising the steps of:

  • providing one of at least two arming signals, each arming signal associated with a path branch direction for one or more turn-outs so as to enable the one or more turn-outs to toggle to a direction corresponding with the provided arming signal;

    determining electronically whether or not the turn-out is occupied;

    electronically detecting a moving object approaching the turn-out; and

    if the turn-out is not occupied by a moving object, automatically toggling the turn-out in response to the object approaching the turn-out without operator intervention;

    and then disarming all of the turn-outs so that only the first unoccupied turn-out approached by the object is toggled.

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