Interconnected circuit breakers

Claim 1

THE COMBINATION OF A PLURALITY OF SIMILIAR SWITCH UNITS, EACH SWITCH UNIT HAVING A PAIR OF RELATIVELY MOV/ ABLE CONTACTS, AN AUTOMATICALLY RESETTABLE MECHANISM INCLUDING A TOGGLE LINKAGE OPERATIVELY CONNECTED BETWEEN ONE OF SAID CONTACTS AND A MANUAL OPERATOR AN OVERLOAD SENSING AND TOGGLE TRIPPING DEVICE ASSOCIATED WITH SAID TOGGLE LINKAGE, SAID TOGGLE LINKAGE BEING COLLAPSIBLE BY SAID DEVICE TO A POSITION FOR OPENING SAID CONTACTS, AN AUTOMATICALLY RESETTABLE MOVABLE COMMON TRIP MEMBER ASSOCIATED WITH EACH OVERLOAD SENSING DEVICE, EACH TOGGLE LINKAGE BEING INDEPENDENT OF THE ASSOCIATED MOVABLE COMMON TRIP MEMBER IN THAT THE FORMER IS OUT OF FORCE TRANSMITTING RELATIONSHIP WITH THE LATTER IN THE CLOSED AND OPEN POSITIONS OF THE CONTACTS AND IN FORCE TRANSMITTING RELATIONSHIP THEREWITH ONLY DURING THE COLLAPSING MOVEMENT OF THE TOGGLE LINGAGE, EACH OF SAID MOVABLE COMMON TRIP MEMBERS BEING INTERCONNECTED, WHEREBY THE COLLAPSING MOVEMENT OF THE ASSOCIATED TOGGLE LINKAGE FOR OPENING SAID CONTACTS OF ONE SWITCH UNIT ALSO MOVES ALL OF THE OTHER COMMON TRIP MEMBERS OF THE ASSOCIATED SWITCH UNITS IN THE DIRECTION NECESSARY TO CAUSE ALL OF THEIR ASSOCIATED TOGGLE LINKAGES TO COLLAPSE AND MOVE TO THE CONTACTS OPEN POSITION.