Control for switch means

Claim 1

IN AN ELECTRIC POWER TRANSMISSION SYSTEM COMPRISING AN ALTERNATING CURRENT POWER SUPPLY CIRCUIT AND A LOAD CIRCUIT ADAPTED TO BE ENERGIZED AT RELATIVELY HIGH VOLTAGE WITH RESPECT TO GROUND, CIRCUIT INTERRUPTER MEANS INTERCONNECTING SAID CIRCUITS AND TRIP MEANS THEREFOR, A SECONDARY WINDING INDUCTIVELY RELATED TO AND ENERGIZED AT THE VOLTAGE OF ONE OF SAID CIRCUITS FOR INDUCTION THEREIN OF CURRENT FLOW WHOSE MAGNITUDE CORRESPONDS TO THE CURRENT FLOW IN SAID CIRCUITS, AN OVERCURRENT RELAY HAVING AN ARMATURE AND A WINDING THEREFOR CONNECTED FOR ENERGIZATION TO SAID SECONDARY WINDING AND ENERGIZED AT THE VOLTAGE OF SAID CIRCUITS FOR MOVING SAID ARMATURE FROM ONE POSITION TO ANOTHER ON FLOW OF PREDETERMINED CURRENT IN SAID CIRCUITS, GROUNDED CONTROL MEANS OPERATIVELY CONNECTED TO SAID STRIP MEANS; HOLLOW INSULATOR MEANS CARRYING SAID SECONDARY WINDING, THE HIGH VOLTAGE CIRCUIT ASSOCIATED THEREWITH AND SAID OVERCURRENT RELAY; AND INSULATOR MEANS EXTENDING THROUGH SAID HOLLOW INSULATOR MEANS AND OPERATIVELY INTERCONNECTING SAID ARMATURE AND SAID GROUNDED CONTROL MEANS FOR OPERATING SAID TRIP MEANS TO OPEN SAID CIRCUIT INTERRUPTER MEANS ON FLOW OF SAID PREDETERMINED CURRENT IN SAID CIRCUITS AND OPERATION OF SAID ARMATURE FROM SAID ONE POSITION TO THE OTHER.