Motor driven rotary electrical stepping switch

Claim 1

AN ELECTRICAL STEPPING SWITCH HAVING, IN COMBINATION AN INSULATING PANEL PROVIDED ON ONE SURFACE THEREOF WITH A SUBSTANTIALLY CIRCULAR ARRAY OF ELECTRICAL CONTACT MEMBERS PROVIDED WITH MEANS FOR ESTABLISHING ELECTRICAL CONNECTION THERETO FROM THE OTHER OPPOSITE SURFACE OF THE PANEL, A ROTATABLE DRIVING MEMBER MOUNTED FOR RELATIVE ROTATION WITH RESPECT TO SAID INSULATING PANEL, A CONTACTOR MOUNTED UPON A ROTATABLE DRIVING MEMBER POSITIONED TO ENABLE ROTATION OF THE MEMBER TO EFFECT SUCCESSIVE CONTACT BETWEEN THE CONTACTOR CONNECTED THERETO AND THE SUCCESSSIVE CONTACT MEMBERS ON SAID INSULATING PANEL, ELECTRICALLLY OPERATIVE MOTOR MEANS PROVIDED WITH A DRIVING SHAFT, MEANS CONNECTED TO SAID ONE SURFACE OF THE PANEL FOR CARRYING THE MOTOR MEANS AND RESILIENTLY URGING THE DRIVING SHAFT OF SAID MOTOR IN FRICTIONAL DRIVING RELATIONSHIP AGAINST A PERIPHERAL REGION OF THE DRIVING MEMBER, MEANS ACCESSIBLE FROM THE SAID OTHER SURFACE OF THE PANEL FOR ENABLING ELECTRICAL ENERGIZATION AND DE-ENERGIZATION OF THE MOTOR MEANS, AND MANUALLY CONTROLLABLE MEANS FOR SETTING THE POSITION OF THE CONTACTOR DISPOSED AT THE SAID OTHER SURFACE OF THE PANEL AND MECHANICALLY COUPLED TO THE DRIVING MEMBER.