Automatic circuit breaker

Claim 1

A CIRCUIT BREAKER COMPRISING AN INSULATING CASING, A CONTACT FIXED WITHIN THE CASING, A PIVOT PIN MOUNTED WITHIN THE CASING, A PAIR OF CAMS PIVOTALLY MOUNTED ON SAID PIN, A MOVABLE CONTACT MEMBER COOPERABLE WITH THE FIXED CONTACT FOR CLOSING A CIRCUIT, SAID MEMBER BEING CONNECTED WITH ONE OF SAID CAMS FOR MOVEMENT WITH SAID CAM BETWEEN OPEN AND CLOSED MOUNT POSITIONS, MEANS BIASING THE CAMS TOGETHER, LATCH MEANS NORMALLY ENGAGING THE OTHER OF SAID CAMS AND ADAPTED TO RELEASE ENGAGEMENT OF SAID CAM IN RESPONSE TO OVERLOAD CURRENT IN THE BREAKER CIRCUIT, AN OPERATING MEMBER SLIDABLY MOUNTED IN THE CASING FOR MOVEMENT BETWEEN OPEN AND CLOSED CIRCUIT POSITIONS, AND WEDGING MEANS PIVOTALLY CONNECTED TO THE OPERATING MEMBER AND ADAPTED TO BE WEDGED BETWEEN THE CAMS IN RESPONSE TO MOVEMENT OF THE OPERATING MEMBER FOR MOVING SAID ONE CAM BETWEEN OPEN AND CLOSED CIRCUIT POSITIONS WHEN SAID OTHER CAM IS ENGAGED BY THE LATCH MEANS, SAID WEDGING MEANS BEING AUTOMATICALLY RELEASED FROM BETWEEN THE CAMS FOR PERMITTING SAID BIASING MEANS TO MOVE SAID ONE CAM AND SAID OPERATING MEMBER TO OPEN CIRCUIT POSITION WHEN SAID OTHER CAM IS RELEASED FROM LATCH ENGAGEMENT, IN COMBINATION WITH AN ADDITIONAL MEMBER CARRIED BY THE OPERATING MEMBER AND SLIDINGLY ENGAGED WITH SAID PIVOT PIN, SAID ADDITIONAL MEMBER HAVING A PROJECTION ENGAGEABLE WITH SAID ONE CAM, WHEREBY THE OPERATING MEMBER CAN BE MANUALLY HELD IN CLOSED CIRCUIT POSITION FOR HOLDING SAID ONE CAM MEMBER IN CLOSED CIRCUIT POSITION INDEPENDENT OF LATCH ENGAGEMENT WITH SAID OTHER CAM MEMBER.