Intelligence transmitting means

Claim 1

A SIGNALLING SYSTEM COMPRISING FIRST AND SECOND NETWORKS EACH HAVING FIRST AND SECOND SETS OF NETWORK TERMINALS, A TRANSFORMER HAVING FIRST AND SECOND SETS OF TRANSFORMER TERMINALS, MEANS COUPLING SAID FIRST SET OF TRANSFORMER TERMINALS TO SAID SET OF TERMINALS OF SAID FIRST NETWORK AND SAID SECOND SET OF TRANSFORMER TERMINALS TO SAID FIRST SET OF TERMINALS OF SAID SECOND NETWORK, SAID SECOND SET OF TERMINALS OF SAID FIRST NETWORK BEING ADAPTED TO BE CONNECTED TO A SOURCE OF PULSATING ELECTRICAL POTENTIAL, SAID SECOND SET OF TERMINALS OF SAID SECOND NETWORK BEING ADAPTED TO SUPPLY A LOAD, A PLURALITY OF IMPEDANCE DEVICES, PLURALITY OF CURRENT REGULATING APPARATUSES, MEANS INDIVIDUALLY CONNECTING SAID IMPEDANCE DEVICES THROUGH INDIVIDUALLY CONNECTING SAID IMPEDANCE DEVICES FIRST AND SECOND NETWORKS, A PLURALITY OF CONDITION RESPONSIVE MEANS INDIVIDUALLY ASSOCIATED WITH SAID CURRENT REGULATING APPARATUSES FOR CONTROLLING CURRENT FLOW THROUGH ITS ASSOCIATED SAID IMPEDANCE DEVICE, EACH SAID CONDITION RESPONSIVE MEANS BEING RESPONSIVE TO A CHANGE IN THE MAGNITUDE OF A CONDITION BEYOND A PREDETERMINED MAGNITUDE FOR ACTUATING THE SAID CURRENT REGULATING APPARATUS WITH WHICH IT IS ASSOCIATED TO MAINTAIN THE CURRENT FLOW THOUGH ITS ASSOCIATED IMPEDANCE DEVICE AT A MAGNITUDE DEPENDENT UPON WHETHER THE MAGNITUDE OF THE SAID CONDITION WITH WHICH IT IS ASSOCIATED IS ABOVE OR BELOW ITS SAID PREDETERMINED MAGNITUDE, THE IMPEDANCES OF SAID IMPEDANCE DEVICES BEING DIFFERENT FROM EACH OTHER SO THAT THE CHANGE IN CURRENT FLOW THROUGH SAID IMPEDANCE DEVICES CAUSED BY A CHANGE IN MAGNITUDE OF ANY ONE OF SAID CONDITIONS THROUGH ITS SAID PREDETERMINED MAGNITUDE WILL CAUSE A CHANGE IN THE PHASE RELATIONSHIP OF THE CURRENT AND VOLTAGE AT SAID FIRST PAIR TERMINALS OF THE OTHER OF SAID FIRST AND SECOND NETWORKS, AND A PHASE DETECTOR CONNECTED TO SAID OTHER NETWORK AND SENSITIVE TO THE PHASE RELATIONSHIP OF SAID CURRENT AND VOLTAGE AT SAID FIRST PAIR OF TERMINALS OF SAID OTHER NETWORK FOR DETECTING WHETHER THE MAGNITUDE OF ANY ONE OF SAID CONDITIONS AND WHICH OF SAID CONDITIONS IS ABOVE OR BELOW ITS RESPECTIVE SAID PREDETERMINED MAGNITUDE.