Electronic railway equipment

Claim 1

A RAILWAY TRAFFIC CONTROL SYSTEM FOR AUTOMATICALLY CONTROLLING THE MOVEMENT OVER GIVEN RAILWAY TRACK OF VEHICLES PROVIDING DIFFERENT SIGNAL TRANSMISSIONS FOR DIFFERENT CHARACTERISTICS ASSOCIATED WITH THE PARTICULAR VEHICLE AT THE TIME, COMPRISING AT LEAST ONE ELECTRICALLY OPERATED DEVICE FOR REGULATING TRAFFIC ON SAID TRACK, RECEIVER MEANS, INCLUDING A PLURALITY OF LOOP ANTENNAE EACH STRETCHING OVER A SECTION OF SAID TRACK FOR RESPECTIVELY RECEIVING A SAID TRANSMISSION WHEN ONE OF SAID VEHILCES IS OPPOSITE THE RECEIVING ANTENNA, FOR PROVIDING A SIGNAL SIGNIFYING THE SAID CHARACTERISTIC ASSOICATED WITH THE VEHICLE WHOSE TRANSMISSION IS RECEIVED BY THE SAID OPPOSITE ANTENNA, MEANS COUPLED TO SAID RECEVIER MEANS FOR CONJOINT CONTROL OF SAID TRAFFIC REGULATING DEVICE BY THE PRESENCE AND ABSENCE OF CONCURRENT VEHICLE TRANSMISSIONS RECEIVED BY AT LEAST TWO OF SAID LOOP ANTENNAE, WHEREIN THE ENDS OF SAID ADJACENT LOOP ANTENNAE OVERLAP, AND A RELAY, WHICH IS PART OF SAID CONJOINT CONTROL MEANS AND WHICH HAS BEEN EXCITED BY A LOOP ANTENNA PASSED FIRST BY A VEHICLE, WHICH REMAINS EXCITED WHEN THE TRAIN INFLUENCES THE FOLLOWING LOOP ANTENNA, AND REMAINING EXCITED UNTIL THE TRAIN LEAVES THE OVERLAP.