Rotary switch with improved adjuster apparatus for multiple brush and disc contacts

Claim 1

A ROTARY CONTROL SWITCH COMPRISING: A SHAFT HAVING A DRIVEN PORTION ADAPTED TO EFFECT ROTATION OF THE SHAFT, A HOUSING PROVIDING JOURNAL PORTIONS FAR ROTATABLY SUPPORTING SAID SHAFT AT SPACED PORTIONS THEREON, A PAIR OF SPACED INSULATING RINGS MOUNTED FOR ROTATION ON SAID SHAFT AND EACH HAVING ELECTRICALLY CONDUCTIVE SEGMENTS MOUNTED AT THE OUTER PERIPHERY OF A RESPECTIVE ONE OF SAID PAIR OF INSULATING RINGS, A BRUSH DISPOSED RADIALLY FROM EACH SAID PAIR OF INSULATING RINGS AND ENGAGEABLE AT THE OUTER PERIPHERY TO EFFECT ELECTRICAL CONDUCTION THEREBETWEEN, MEANS FOR CIRCUMFERENTIALLY ADJUSTING SAID PAIR OF SPACED RINGS TO CONTROL THE DURATION OF CONDUCTION BETWEEN SAID RINGS, ADDITIONAL ADJUSTER MEANS FOR POSITIONING SAID BRUSHES ANGULARLY ABOUT SAID INSULATING RINGS TO DEFINE THE TIMED OCCURRENCE OF CONTACT AND WHICH TOGETHER WITH THE CIRCUMFERENTIAL ADJUSTMENT OF SAID RINGS PROVIDES A SWITCH OPERATION OF CONTROLLED DURATION AND SEQUENCE, A SLEEVE COAXIALLY MOUNTED ON SAID SHAFT AND MOVABLE LONGITUDINALLY THEREON, MEANS FOR SELECTIVELY COUPLING AND DECOUPLING SAID SLEEVE AND SHAFT AND PROVIDING RELATIVE ANGULAR POSITIONING THEREON WHEREBY SAID SHAFT IS IN A PRE-SELECTED ANGULAR DISPOSITION THEREIN AND IN DRIVABLE RELATION WITH SAID SLEEVE TO EFFECT ITS CO-ROTATION IN COUPLED POSITION AND FURTHER TO PROVIDE ADJUSTABLE RELATIVE ROTATION BETWEEN SAID SLEEVE AND SHAFT IN DECOUPLED RELATION FOR OTHER ANGULAR POSITIONING, A PLURALITY OF CIRCULAR MEANS SPACED LONGITUDINALLY ON SAID SHAFT AND ROTATABLE THEREWITH, SAID CIRCULAR MEANS HAVING ELECTRICALLY CONDUCTIVE PORTIONS, BRUSH MEANS ENGAGEABLE WITH THE OUTER PERIPHERY OF SAID CIRCULAR MEANS TO PROVIDE FOR ELECTRICAL SWITCHING OPERATION OF A DURATION AND SEQUENCE INDEPENDENT OF SAID FIRST-NAMED SWITCHING OPERATION.