Control system for a stepping switch

Claim 1

IN A COMBINATION WITH A STEPPING SWITCH, A WIPER ON SAID STEPPING SWITCH, A STEPPING COIL FOR MOVING SAID WIPER STEP-BY-STEP FROM A SELECTED PREDETERMINED POSITION TO A HOME POSITION, AN A.C. SOURCE OF POWER SUPPLY, A RECTIFIER MEANS FOR PROVIDING A D.C. SOURCE OF POWER SUPPLY, A FIRST ELECTIRCAL CONTROL ELEMENT, A SWITCH MEANS FOR CONNECTING SAID FIRST CONTROL ELEMENT TO SAID D.C. SOURCE OF SUPPLY TO EFFECT ENERGIZATION OF SAID FIRST CONTROL ELEMENT IN THE FIRST HALF OF THE INITIAL A.C. CYCLE, A LOCKING CIRCUIT INCLUDING A CONDENSOR OPERABLE TO MAINTAIN SAID FIRST CONTROL ELEMENT IN AN ENERGIZED STATE, A SECOND ELECTRICAL CONTROL ELEMENT ENERGIZED IN THE SECOND HALF OF THE INITIAL A.C. CYCLE UNDER CONTROL OF SAID FIRST CONTROL ELEMENT UPON ENERGIZATION THEREOF AND OPERABLE TO CONTROL SEQUENTIAL PULSING OF SAID STEPPING COIL BY SAID A.C. SOURCE IN THE FIRST HALF OF EACH OF THE SUCCEEDING A.C. CYCLES TO MOVE SAID WIPER TO THE HOME POSITION, SAID SECOND CONTROL ELEMENT BEING OPERABLE UPON ENERGIZATION THEREOF TO EFFECT DEENERGIZATION OF SAID FIRST CONTROL ELEMENT IN THE FIRST HALF OF THE SECOND A.C. CYCLE, A HOLDING CIRCUIT ENABLED BY SAID FIRST CONTROL ELEMENT UPON DE-ENERGIZATION THEREOF TO MAINTAIN SAID SECOND CONTROL ELEMENT IN AN ENERGIZED STATE UNTIL SAID WIPER REACHES HOME POSITION, AND MEANS CONTROLLED BY SAID WIPER UPON REACHING HOME POSITION OPERABLE IN THE SECOND HALF OF THE LAST HOMING A.C. CYCLE TO EFFECT DE-ENERGIZATION OF SAID SECOND CONTROL ELEMENT.