Shorting switch mechanism

Claim 1

AN INSTRUMENT CURRENT TRANSFORMER HAVING A SECONDARY WINDING IN THE FORM OF A TOROID TO PROVIDE AN AXIAL OPENING ADAPTED TO RECEIVE A CONDUCTOR WHICH EXTENDS THROUGH THE OPENING AND FUNCTIONS AS A PRIMARY CONDUCTOR, AN OUTER CASING OF MOLDED ELECTRICAL INSULATION SURROUNDING SAID SECONDARY WINDING, A SUPPORT BASE SECURED TO SAID OUTER CASING, A SURFACE OF SAID CASING BEING SUBSTANTIALLY FLAT AND HAVING TWO SECONDARY WINDING TERMINALS EXTENDING UPWARDLY THEREFROM, EACH TERMINAL INCLUDING MEANS FOR FASTENING A CONDUCTOR THERETO AND A CONDUCTIVE SWITCH SURFACE, A SHORTING SWITCH STRUCTURE POSITIONED BETWEEN SAID SECONDARY TERMINALS, SAID SHORTING SWITCH STRUCTURE INCLUDING MEANS DEFINING A SWITCH PIVOT AXIS SECURED IN SAID OUTER CASING, AN ELECTRICALLY CONDUCTIVE BRIDGING MEMBER MOUNTED FOR ROTATION ON SAID PIVOT AXIS DEFINING MEANS, SAID BRIDGING MEMBER BEING ROTATABLE BETWEEN A FIRST POSITION IN WHICH SAID BRIDGING MEMBER ELECTRICALLY CONTACTS SAID TERMINAL SWITCH SURFACES TO PROVIDE A SHORT CIRCUIT POSITION THEREBETWEEN AND A SECOND POSITION TO PROVIDE AN OPEN CIRCUIT BETWEEN SAID TERMINAL SWITCH SURFACES, MEANS FOR POSITIVELY POSITIONING SAID BRIDGING MEMBER IN SAID IRST AND SAID SECOND POSITIONS, A RESILIENT COUPLING ELEMENT SECURED TO SAID BRIDGING MEMBER FOR ROTATION THEREWITH, A ROTATABLE CAP HAVING A MEANS FOR RECEIVING SAID COUPLINGELEMENT AND A DEPENDING SKIRT WALL EXTENDING ENTIRELY THEREAROUND ADAPTED TO SEAT ON SAID SURFACE OF SAID CASING OUTSIDE OF SAID TERMINALS, SAID SKIRT WALL HAVING TWO SPACED CUT OUT PORTIONS FOR PROVIDING PATHS FOR ELECTRICAL CONDUCTORS CONNECTED TO SAID TERMINALS TO EXTEND EXTERNALLY OF SAID CAP WHEN SAID CAP IS SEATED ON SAID CASING SURFACE AND SAID BRIDGING MEMBER IS IN SAID SECOND POSITION, TWO UPSTANDING TABS FIXED IN POSITION ON SAID CASING SURFACE AND ALIGNED WITH SAID CUT OUT PORTIONS OF SAID CAP WHEN SAID BRIDGING MEMBER IS IN SAID FIRST POSITION TO PREVENT SAID CAP FROM BEING SEATED ON SAID CASING TOP SURFACE WHEN CONDUCTORS ARE CONNECTED TO SAID TERMINALS, SAID TABS PREVENTING ROTATION OF SAID CAP AND SAID SHORTING SWITCH STRUCTURE WHEN SAID CAP SKIRT WALL IS SEATED ON SAID CASING SURFACE, A CAP SECURING STRUCTURE HAVING A FIRST POSITION FOR SECURING SAID CAP IN SEATED POSITION ON SAID CASING SURFACE, A SECOND POSITION PERMITTING SAID CAP TO BE RAISED TO ALLOW SAID SKIRT WALL TO CLEAR SAID TABS WITHOUT DISENGAGING THE CAP FROM SAID COUPLING ELEMENT SO THAT SAID CAP MAY BE ROTATED TO MOVE SAID SHORTING SWITCH STRUCTURE BETWEEN SAID FIRST AND SECOND POSITIONS, AND MEANS COOPERATING WITH SAID SECURING STRUCTURE FOR LOCKING SAID CAP SECURING STRUCTURE IN SAID FIRST POSITION TO PREVENT UNAUTHORIZED ACCESS TO SAID TERMINALS AND TAMPERIN WITH SAID SHORTING SWITCH STRUCTURE.