Fluid-blast circuit interrupter with straight-line driving mechanism

Claim 1

THE COMBINATION IN A LIVE-TANK FLUID-BLAST TYPE OF CIRCUIT INTERRUPTER INCLUDING A METALLIC PRESSURE-RESISTANT ARC-EXTINGUISHING HOUSING, A HOLLOW INSULATING COLUMN FOR SUPPORTING SAID METALLIC PRESSURE-RESISTANT ARC-EXTINGUISHING HOUSING UP ON THE AIR AND ADEQUATE DISTANCE ABOVE GROUND POTENTIAL, A PAIR OF TERMINAL BUSHINGS EXTENDING INTO SAID HOUSING AND CARRYING A PAIR OF RELATIVELY STATIONARY CONTACTS AT THE INTERIOR ENDS THEREOF, A PRESSURE RESISTANT METALLIC INTERRUPTING CHAMBER DISPOSED INTERIORLY WITHIN SAID HOUSING AND ELECTRICALLY CONNECTED TO THE OUTER METALLIC HOUSING, SAID PAIR OF RELATIVELY STATIONARY CONTACTS BEING SITUATED ADJACENT ONE SIDE OF SAID PRESSURERESISTANT METALLIC INTERRUPTING CHAMBER, A PAIR OF RELATIVELY STATIONARY PRESSURE-GENERATING CONTACTS DISPOSED WITHIN SAID METALLIC INTERRUPTING CHAMBER AND ELECTRICALLY CONNECTED THERETO, A PAIR OF SPACED-APART MOVABLE U-SHAPED CONTACT STRUCTURES, EACH MOVABLE U-SHAPED CONTACT STRUCTURE INCLUDING A MOVABLE INTERRUPTING CONTACT AND A MOVABLE PRESSURE-GENERATING CONTACT, THE MOVABLE INTERRUPTING CONTACT BEING COOPERABLE WITH ONE OF SAID FIRSTMENTIONED RELATIVELY STATIONARY CONTACTS AND THE MOVABLE PRESSURE-GENERATING CONTACT BEING COOPERABLE WITH THE OF SAID RELATIVELY CONTACT BEING COOPERABLE WITH ONE A MOVABLE CROSS-HEAD FOR CARRYING THE PAIR OF MOVABLE U-SHAPED CONTACT STRUCTURES, OPERATING MECHANISM FOR DRIVING THE CROSS-HEAD COMPRISING A PAIR OF SPACED-APART DRIVING CRANKS HAVING DRIVING ROLLERS ADJACENT THE FREE ENDS THEREOF, MEANS DEFINING A RACE-WAY SECURED TO AND MOVABLE WITH SAID CROSS-HEAD FOR ACCOMMODATING THE TWO DRIVING ROLLERS, A DOUBLE-SIDED DRIVING RACK MOVABLE DURING THE OPENING AND CLOSING OPERATIONS OF THE CIRCUIT BREAKER FOR SIMULTANEOUSLY DRIVING SAID DRIVING CRANKS IN OPPOSITE DIRECTIONS OF ROTATION AT SUBSTANTIALLY THE SAME SPEED, AND AN INSULATING OPERATING ROD EXTENDING UPWARDLY INTERIORLY OF SAID INSULATING COLUMN AND HAVING SAID DOUBLE-SIDE DRIVING RACK SECURED THERETO ADJACENT THE UPPER END THEREOF, WHEREBY THE CAPACITANCE EFFECTS OF THE TERMINAL BUSHINGS AND THE ELECTRICAL CONNECTION BETWEEN THE INNER METALLIC INTERRUPTING CHAMBER AND THE OUTER METALLIC HOUSING WILL ASSIST IN VOLTAGE DIVISION AMONG THE BREAKS DURING THE OPENING OPERATION.