Staging network

Claim 1

A CONDITION RESPONSIVE CONTROL SYSTEM FOR SUCCESSIVELY OPERATING A PLURALITY OF CURRENT RESPONSIVE LOADS IN ACCORDANCE WITH THE DEVIATION OF A CONDITION SOLELY IN ONE SENSE FROM A PREDETERMINED VALUE, COMPRISING A SOURCE OF ALTERNATING CURRENT VOLTAGE, A UNIDIRECTIONALLY CONDUCTIVE DEVICE, CURRENT CONTROLLING MEANS INCLUDING A PAIR OF POWER CIRCUIT ELECTRODES AND A CONTROL ELECTRODE, SAID CONTROL ELECTRODE CONTROLLING THE AMPLITUDE OF THE CURRENT FLOW THROUGH SAID POWER CIRCUIT ELECTRODES, A STAGING NETWORK INCLUDING A PAIR OF TERMINALS BETWEEN WHICH ARE CONNECTED A PLURALITY OF PARALLELED BRANCHES EACH INCLUDING A CURRENT RESPONSIVE LOAD AND AN ADJUSTABLE RESISTANCE ELEMENT TO ADJUST THE ENERGIZATION OF THE LOAD, EACH OF SAID CURRENT RESPONSIVE LOADS BEING OPERABLE ONLY WHEN THE CURRENT FLOWING THERETHROUGH EXCEEDS A PREDETERMINED VALUE, THE INDEPENDENT ADJUSTMENT OF THE CORRESPONDING RESISTANCE ELEMENT, SETTING THE AMPLITUDE OF THE CURRENT FLOW THROUGH SAID CURRENT CONTROLLING MEANS TO ESTABLISH THE NECESSARY CURRENT FLOW THROUGH THE CURRENT CONTROLLING MEANS TO OPERATE THE CORRESPONDING LOAD, LOAD CIRCUIT MEANS CONNECTING IN SERIES SAID VOLTAGE SOURCE, SAID UNIDIRECTIONALLY CONDUCTIVE DEVICE, SAID NETWORK TERMINALS, AND THE POWER CIRCUIT ELECTRODES OF SAID CURRENT CONTROLLING MEANS WHEREBY SAID CURRENT CONTROLLING MEANS IS BIASED TO CONDUCT DURING ONE HALF CYCLE OF THE VOLTAGE SOURCE, CONDITION RESPONSIVE ALTERNATING CURRENT BRIDGE NETWORK MEANS CONNECTED WITH SAID CONTROL ELECTRODE, SAID BRIDGE NETWORK MEANS INCLUDING AN ENERGIZING WINDING, AND MEANS ENERGIZING SAID ENERGIZING WINDING WITH AN ALTERNATING CURRENT VOLTAGE HAVING THE SAME FREQUENCY AS, AND A GIVEN PHASE RELATIONSHIP RELATIVE TO, SAID VOLTAGE SOURCE TO BIAS THE CURRENT CONTROLLING MEANS TO CONDUCT IN RESPONSE TO THE DEVIATION OF THE CONDITION IN SAID ONE SENSE.