Operating mechanism for electrical circuit breaker of the gas blast type

Claim 1

THE COMBINATION WITH A CIRCUIT BREAKER OF THE GAS BLAST TYPE INCLUDING A HOLLOW INSULATOR COLUMN HAVING ONE END IN COMMUNICATION WITH A SUPPLY CONTAINER OF PRESSURIZED GAS AND THE OTHER IN COMMUNICATION WITH A CONTAINER STRUCTURE HOUSING GAS PRESSURE RESPONSIVE ACTUATING MEANS FOR THE CIRCUIT BREAKER CONTACTS, AND WHEREIN SAID CONTAINER STRUCTURE IS UNDER VOLTAGE AND CONTINUOUSLY FILLED WITH THE PRESSURIZED GAS FROM SAID SUPPLY CONTAINER, OF AN OPERATING MECHANSIM FOR CONTROLLING SAID GAS PRESSURE RESPONSIVE CONTACT ACTUATING MEANS, AND OPERATING MECHANISM COMPRISING A NORMALLY CLOSED SWITCHING VALVE SUPPORTED BY SAID CONTAINER STRUCTURE, SAID SWITCHING VALVE INCLUDING A MOVABLE VALVE MEMBER HAVING ONE SIDE THEREOF CONTINUOUSLY SUBJECT OF THE GAS PRESSURE WITHIN SAID CONTAINER STRUCTURE AND WHICH ALWAYS TENDS TO MOVE SAID VALVE MEMBER IN THE VALVE OPENING DIRECTION WHICH IS LIKEWISE THE DIRECTON WHICH GAS FLOWS THROUGH SAID VALVE TO EFFECT OPERATION OF SAID GAS PRESSURE RESPONSIVE CONTACT ACTUATING MEANS, A ROD OF INSULATING MATERIAL, MEANS APPLYING A TENSION FORCE TO SAID ROD, LINKAGE MEANS INTERCONNECTING SAID ROD WITH SAID MOVABLE VALVE MEMBER, SAID LINKAGE MEANS TRANSLATING SAID TENSION FORCE IN SAID ROD TO A FORCE ACTING ON SAID MOVABLE VALVE MEMBER IN SUCH DIRECTION AS TO MAINTAIN SAID MOVABLE VALVE MEMBER IN CLOSED POSITION OVERCOMING THE COUNTER VALVE OPENING FORCE APPLIED BY THE PRESSURIZED GAS ACTING ON THE VALVE MEMBER, AND MEANS FOR RELEASING SAID TENSION FORCE IN SAID INSULATING ROD THEREBY TO ALLOW SAID VALVE MEMBER TO SHIFT FROM ITS CLOSED TO ITS OPEN POSITION IN RESPONSE TO THE GAS PRESSURE WITHIN SAID CONTAINER STRUCTURE.