Electric switch with lockable rotary operator

Claim 1

AN ELECTRIC SWITCH COMPRISING AN ENCLOSURE HAVING A GENERALLY PLANAR TOP SURFACE, A MANUALLY OPERABLE HANDLE MEMBER PIVOTALLY MOUNTED ON SAID PLANAR TOP SURFACE ON AN AXIS OF ROTATION GENERALLY PERPENDICULAR THERETO, SAID MANUALLY OPERABLE HANDLE BEING MOVABLE ABOUT SAID AXIS OF ROTATION BETWEEN SPACED "ON" AND "OFF" POSITIONS, A RAISED CIRCULAR RIDGE SURROUNDING SAID MANUALLY OPERABLE HANDLE, SAID OPERATING HANDLE HAVING A LOCKING SLIDE SLIDABLY SUPPORTED THEREIN AND MOVABLE THEREIN TO A POSITION IN WHICH AT LEAST A PORTION OF SAID LOCKING SLIDE PROJECTS OUTWARDLY FROM ONE END OF SAID MANUALLY OPERABLE HANDLE, AT LEAST A PORTION OF SAID RAISED CIRCULAR RIM LYING CLOSELY ADJACENT THE PATH OF MOVEMENT OF SAID END OF SAID MANUALLY OPERABLE HANDLE MEMBER, SAID RAISED CIRCULAR RIM HAVING A NOTCH CUT THERIN AT THE POSITION CORRESPONDING TO THE POSITION OF SAID SLIDE WHEN SAID HANDLE IS IN SAID "OFF" POSITION WHEREBY SAID SLIDE MAY BE DRAWN OUT OF SAID HANDLE WHEN SAID HANDLE IS IN SAID "OFF" POSITION, AND AN OPENING IN SAID LOCKING SLIDE TO PERMIT THE INSERTION OF A LOCKING MEANS SAID LOCKING MEANS PREVENTING THE MOVEMENT OF SAID LOCKING SLIDE FULLY WITHIN SAID OPERATING HANDLE AND SAID LOCKING SLIDE PREVENTING THE MOVEMENT OF SAID HANDLE AWAY FROM SAID "OFF" POSITION.