Handle locking attachment for electrical control devices

Claim 1

A HANDLE LOCKING ATTACHMENT SECURABLE TO PIVOTABLE OPERATING HANDLE EXTENDING OUTWARDLY OF A CASING OF AN ELECTRICAL CONTROL DEVICE TO LOCK THE HANDLE IN ONE OF TWO OPERATIVE POSITIONS THEREOF SAID ATTACHEMENT COMPRISING A GENERALLY U-SHAPED HOUSING MEMBER FORMED FROM FLAT SHEET STOCK AND INCLUDING A BIGHT PORTION AND A PAIR OF SPACED, FLATWISE GENERALLY PARALLEL LEG PORTIONS, A GENERALLY U-SHAPED CLAMPING MEMBER FORMED FROM FLAT SHEET STOCK AND INCLUDING A BIGHT PORTION AND A PAIR OF SPACED, FLATWISE GENERALLY PARALLEL LEG PORTIONS THE LEG PORTIONS OF SAID CLAMPING MEMBER BEING DISPOSED BETWEEN THE LEG PORTIONS OF SAID HOUSING MEMBER, AND MEANS CONNECTING SAID CLAMPING AND HOUSING MEMBERS FOR PIVOTAL MOVEMENT RELATIVE TO EACH OTHER ABOUT A FIXED AXIS EXTENDING GENERALY PERPENDICULARLY TO THE LEG PORTIONS OF SAID CLAMPING AND HOUSING MEMBERS AND DISPOSED ADJACENT THE FREE ENDS OF THE LEG PORTIONS OF SAID CLAMPING MEMBER IN SPACED RELATIONSHIP TO THE BIGHT PORTION OF SAID HOUSING MEMBER, SAID FREE ENDS OF THE LEG PORTIONS OF SAID CLAMPING MEMBER BEING DEFINED RESPECTIVELY BY CURVED EDGE SURFACES OF VARYING RADIUS MEASURED FROM SAID FIXED AXIS OF PIVOTAL MOVEMENT BETWEEN SAID CLAMPING AND HOUSING MEMBERS, THE DISTANCE BETWEEN SAID BIGHT PORTION OF SAID HOUSNG MEMBER AND SAID FREE ENDS OF THE LEG PORTIONS OF SAID CLAMPING MEMBER DECREASING DUE TO THHE VARYING RADIUS OF SAID CURVED EDGE SURFACES AS SAID CLAMPING MEMBER IS PIVOTED RELATIVELY TO SAID HOUSING MEMBER FROM A POSITION IN WHICH THE LEG PORTIONS OF THE SAID CLAMPING MEMBER EXTEND GENERALLY PERPENDICULARLY TO THE LEG PORTIONS OF SAID HOUSING MEMBVER OT A POSITION IN WHICH THE LEG PORTIONS OF SAID CLAMPING MEMBER ARE SUBSTANTIALLY ALIGNED WITH THE LEG PORTIONS OF SAID HOUSING MEMBER, WHEREBY A PIVOTABLE OPERATING HANDLE EXTENDING OUTWARDLY OF A CASING OF AN ELECTRICAL CONTROL DEVICE MAY BE CLAMPED BETWEEN SAID BIGHT PORTION OF SAID HOUSING MEMBER AND SAID FREE ENDS OF SAID LEG PORTIONS OF SAID CLAMPING MEMBER, THE FREE END PORTIONS OF THE LEG PORTIONS OF SAID HOUSING MEMBER AND THE BIGHT END PORTIONS OF THE LEG PORTIONS OF SAID CLAMPING MEMBER HAVING APERTURES EXTENDING RESPECTIVELY THERETHROUGH WHICH ARE ALIGNED WHEN SAID CLAMPING MEMBER IS IN CLAMPING POSITION RELATIVELY TO SAID HOUSING MEMBER FOR RECEIVING A SHACKLE OF A PADLOCK TO LOCK SAID CLAMPING MEMBER IN SAID CLAMPING POSITION, AND THE LEG PORTIONS OF SAID HOUSING MEMBER BEING FORMED TO BEAR AGAINST THE CASING OF AN ELECTRICAL CONTROL DEVICE WHEN SAID HANDLE LICKING ATTACHMENT IS SECURED ON A PIVOTABLE OPERATING HANDLE THEREOF AND SAID HANDLE IS IN ONE OF TWO OPERATIVE POSITIONS AND AN ATTEMPT IS MADE TO PIVOT SAID HANDLE TO THE OPERATIVE POSITION THEREOF.