Circuit interrupting units with handletie structure

Claim 1

IN COMBINATION, TWO CIRCUIT INTERRUPTING UNITS, (A) EACH OF SAID CIRCUIT INTERRUPTING UNITS COMPRISING AN INSULATING COMPARTMENT, EACH OF SAID CIRCUIT INTERRUPTING UNITS COMPRISING AN OPERATING MECHANISM SUPPORTED WITHIN THE ASSOCIATED COMPARTMENT AND HAVING A HANDLE EXTENDING OUT OF THE ASSOCIATED COMPARTMENT, (B) EACH OF SAID OPERATING MECHANISMS COMPRISING: A STATIONARY CONTACT, A MOVABLE CONTACT COOPERABLE WITH SAID STATIONARY CONTACT, AN OPERATING SPRING OPERABLE TO MOVE SAID MOVABLE CONTACT, A LATCHED RELEASABLE MEMBER, TRIP MEANS, (C) EACH OF SAID OPERATING MECHANISMS COMPRISING MEANS OPERABLE SUCH THAT EACH OF SAID HANDLES IS MANUALLY MOVABLE FROM A FIRST POSITION TO A SECOND POSITION TO EFFECT A DISCHARGING ACTION OF THE ASSOCIATED SPRING WITHOUT A SUBSTANTIAL ADDITIONAL CHARGING ACTION TO THEREBY MOVE THE ASSOCIATED CONTACTS FROM A CLOSED POSITION TO AN OPEN POSITION, (D) UPON THE OCCURRENCE OF AN OVERLOAD CURRENT ABOVE A PREDETERMINED VALUE IN EITHER OF SAID CIRCUIT INTERRUPTING UNITS THE ASSOCIATED TRIP MEANS OPERATING AUTOMATICALLY TO TRIP THE ASSOCIATED CIRCUIT INTERRUPTING UNIT BY RELEASING THE ASSOCIATED RELEASABLE MEMBER TO EFFECT A DISCHARGING ACTION OF THE ASSOCIATED SPRING TO EFFECT OPENING OF THE ASSOCIATED CONTACTS AND MOVEMENT OF THE ASSOCIATED HANDLE FROM SAID FIRST POSITION TO A THIRD POSITION INTERMEDIATE SAID FIRST AND SECOND POSITIONS, (E) A LOST MOTION HANDLE TIE EXTERNAL OF SAID COMPARTMENTS AND OPERATIVELY CONNECTING SAID HANDLES, THE AMOUNT OF SAID LOST MOTION BEING SUCH THAT ALL OF SAID LOST MOTION IS TAKEN UP BEFORE SAID ASSOCIATED HANDLE REACHES SAID THIRD POSITION, AND WHEN EITHER OF SAID CIRCUIT INTERRUPTING UNITS IS AUTOMATICALLY TRIPPED THE FORCE OF THE OPERATING SPRING OF THE TRIPPED UNIT OPERATING TO MOVE THE HANDLE OF THE TRIPPED UNIT TO THE THIRD POSITION WITH SUCH A FORCE THAT WHEN THE LOST MOTION OF SAID LOST MOTION HANDLE TIE IS TAKEN UP THE FORCE OF THE OPERATING SPRING OF THE TRIPPED UNIT OPERATES THROUGH SAID LOST MOTION HANDLE TIE TO MOVE THE OTHER HANDLE TO EFFECT MOVEMENT OF THE OTHER HANDLE TO SAID SECOND POSITION TO EFFECT OPENING OF THE CONTACTS OF THE OTHER CIRCUIT INTERRUPTING UNIT.