Switch operating mechanism

Claim 1

AN OPERATOR FOR AN ELECTRIC LIMIT SWITCH HAVING THE SWITCH WITHIN AN ENCLOSURE, SAID OPERATOR COMPRISING: A HOUSING MOUNTABLE IN ANY ONE OF A PLURALITY OF ANGULAR POSITIONS ON AN END OF THE ENCLOSURE WHICH HOUSING AND ENCLOSURE HAVE COOPERATING RECESSES AND BOSSES FOR PREVENTING ROTATION OF THE HOUSING ON THE ENCLOSURE WHEN THE HOUSING IS POSITIONED ON THE ENCLOSURE, SAID HOUSING WHEN MOUNTED HAVING A CAVITY OF FACING IN THE END AND A PAIR OF AXIALLY ALIGNED BORES EXTENDING IN OPPOSITE DIRECTIONS FROM THE CAVITY TO THE EXTERIOR OF THE HOUSING, SAID BORES BEING ALIGNED ALONG AN AXIS PARALLEL TO SAID END WHEN THE HOUSING IS MOUNTED ON THE END, A SHAFT MOUNTED FOR RECIPROCAL MOVEMENT IN SAID BORES, SAID SHAFT HAVING AN INTERMEDIATE PORTION DISPOSED WITHIN THE CAVITY AND A PAIR OF OPERATING PORTIONS EXTENDING IN OPPOSITE DIRECTIONS FROM THE INTERMEDIATE PORTION THROUGH SAID BORES TO ENDS WHICH ARE DISPOSED EXTERNAL TO THE HOUSING, A NOTCH FORMED IN SAID INTERMEDIATE PORTION, SAID NOTCH HAVING A SUBSTANTIALLY FLAT BOTTOM WALL PORTION EXTENDING TOWARD ONE OF THE ENDS OF ONE OF THE OPERATING PORTIONS AND AN INCLINED WALL EXTENDING FROM THE FLAT BOTTOM WALL PORTION TOWARD THE END OF THE OTHER OPERATING PORTION TO THE EXTERNAL SURFACE OF THE SHAFT, MEANS FOR GUIDING THE SHAFT IN SAID BORES SO THE INCLINED PORTION AND BOTTOM WILL FACE THE END OF THE ENCLOSURE AND FOR LIMITING AXIAL MOVEMENT OF THE SHAFT IN SAID BORES, MEANS FOR RESILENTLY MAINTAINING THE SHAFT IN EITHER OF TWO POSITIONS IN SAID BORES, AND AN OPERATING LEVER CARRIED BY THE HOUSING IN THE CAVITY, SAID OPERATING LEVER HAVING A ROLLER ENGAGING THE FLAT BOTTOM WALL WHEN THE SHAFT IS IN ONE OF ITS TWO POSITIONS AND ARRANGED TO MOVE ON THE INCLINED SURFACE TOWARD THE EXTERNAL SURFACE OF THE SHAFT WHEN THE SHAFT IS MOVED FROM THE SAID ONE POSITION TO THE OTHER OF THE TWO POSITIONS.