Circuit selector system employing plural stepping switches

Claim 1

IN A SELECTING SYSTEM OF THE STEPPING TYPE, A STEPPING DEVICE HAVING A PLURALITY OF POSITIONS AND OPERABLE TO STEP THROUGH SAID POSITIONS IN A PREDETERMINED SEQUENCE, CON TROL MEANS FOR SAID STEPPING DEVICE INCLUDING A CONTROL ELEMENT ENERGIZABLE TO EFFECT REPEATED STEPPING OF SAID DEVICE UNTIL SAID CONTROL ELEMENT IS DE-ENERGIZED, FIRST CIRCUIT MEANS FOR SELECTIVELY ENERGIZING SAID CONTROL ELEMENT INCLUDING MEANS RESPONSIVE TO THE STEPPING OF SAID DEVICE TO A PREDETERMINED ONE OF SAID POSITIONS FOR DE-ENERGIZING SAID CONTROL ELEMENT, SECOND CIRCUIT MEANS SELECTIVELY ENERGIZABLE TO EFFECT ENERGIZATION OF SAID CONTROL ELEMENT AND INCLUDING MEANS RESPONSIVE TO THE OPERATION OF SAID DEVICE UPON EACH ENERGIZATION OF SAID CONTROL ELEMENT TO RENDER SAID SECOND CIRCUIT MEANS INEFFECTIVE TO ENERGIZE SAID CONTROL ELEMENT AND THEREBY LIMIT THE OPERATION OF SAID DEVICE TO ONE STEP IN RESPONSE TO EACH ENERGIZATION OF SAID SECOND CIRCUIT MEANS, AND MEANS FOR SELECTIVELY EFFECTING OPERATION OF SAID STEPPING DEVICE UNDER THE CONTROL OF A SELECTED ONE OF SAID FIRST AND SECOND CIRCUIT MEANS, SAID FIRST CIRCUIT MEANS INCLUDING MEANS FOR SELECTING SAID PREDETERMINED POSITION.