Two piece handle locking device each with portions interlockable with the other

Claim 1

FOR USE WITH AN ELECTRICAL CONTROL DEVICE INCLUDING A CASING AND A PIVOTALLY MOUNTED OPERATING HANDLE EXTENDING OUTWARDLY OF A RECESS IN THE CASING AND HAVING A GENERALLY RECTANGULAR CROSS SECTION DEFINED BY FIRST, SECOND, THIRD, AND FOURTH SURFACES OF SAID HANDLE, A LOCKING DEVICE MOUNTABLE ON SAID HANDLE FOR LOCKING THE HANDLE IN EITHER OF TWO OPERATIVE POSITIONS THEREOF, SAID LOCKING DEVICE COMPRISING A FIRST PART FORMED FROM FLAT STOCK AND INCLUDING A GENERALLY L-SHAPED PORTION A FIRST LEG OF WHICH IS ENGAGEABLE WITH SAID FIRST SURFACE AND A SECOND LEG OF WHICH IS ENGAGEABLE WITH SAID SECOND SURFACE, A SECOND PART FORMED FROM FLAT STOCK AND INCLUDING A GEERALLY LSHAPED PORTION A FIRST LEG OF WHICH IS ENGAGEABLE WITH SAID THIRD SURFACE AND A SECOND LEG OF WHICH IS ENGAGEABLE WITH SAID FOURTH SURFACE, SAID FIRST LEG OF THE L-SHAPED PORTION OF SAID FIRST PART OF SAID SECOND LEG OF THE LSHAPED PORTION OF SAID SECOND PART RESPECTIVELY HAVING FREE END PORTIONS INTERLOCKABLE WITH EACH OTHER, SAID FIRST PART AND SAID SECOND PART EACH INCLUDING A TAB PORTION EXTENDING SUBSTANTIALLY PERPENDICULARLY FROM SAID THIRD SUR-