Transistorized supervisory circuit for transmission lines

Claim 1

IN A SUPERVISORY SYSTEM FOR SUPERVISING THE CONTINUITY OF A TRANSMISSION LINE, A TWO WINDING RELAY, A POWER SOURCE, MEANS FOR CONNECTING THE SAID WINDINGS IN SERIES AND IN FLUX OPPOSING RELATIONSHIP ACROSS SAID SOURCE, SWITCHING MEANS HAVING AN INPUT CIRCUIT CONNECTED TO SAID LINE AND HAVING AN OUTPUT CIRCUIT CONNECTED TO THE JUNCTION BETWEEN SAID SERIES WINDINGS, SAID SWITCHING MEANS COMPRISING A TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR ELECTRODES INCLUDED IN SAID BASE AND OMITTER ELECTRODES INCLUDED IN SAID INPUT CIRCUIT AND WITH THE SAID COLLECTOR AND EMITTER ELECTRODES INCLUDED IN SAID OUTPUT CIRCUIT, MEANS RESPONSIVE TO THE CONTINUITY AND NONCONTINUITY OF SAID LINE FOR RESPECTIVELY OPERATING AND RESTORING SAID SWITCHING MEANS, MEANS IN THE SAID OUTPUT CIRCUIT FOR CONTROLLING THE QUANTITY OF FLUX GENERATED BY EACH SAID RELAY WINDING TO CAUSE AN UNBALANCE OF FLUX WHEREBY THE RESULTANT GENERATED FLUX OPERATES SAID RELAY WHEN SAID SWITCHING MEANS IS OPERATED AND RESTORES SAID RELAY WHEN SAID SWITCHING MEANS IS UNOPERATED, AND MEANS CONTROLLED BY SAID RELAY FOR INDICATING THE CONTINUITY CONDITION OF SAID LINE.