Contact structure for an electric circuit breaker

Claim 1

A CONTACT ASSEMBLY FOR AN ELECTRIC CIRCUIT BREAKER COMPRISING: (A) A CONDUCTIVE SUPPORT COMPRISING A BODY PORTION AND A PROJECTING PORTION EXTENDING LATERALLY FROM SAID BODY PORTION, (B) A PAIR OF FINGER CONTACTS DISPOSED AT OPPOSITE SIDES OF SAID PROJECTING PORTION AND EXTENDING LATERALLY OUTWARD FROM SAID PROJECTING PORTION BEYOND THE FREE END OF SAID PROJECTING PORTION, (C) EACH OF SAID FINGER CONTACTS HAVING A PARTIALLY CYLINDRICAL BEARING PORTION AT ONE END AND A CONTACTMAKING PORTION ADJACENT ITS OTHER END ADAPTED TO ENGAGE A CONTACT MOVABLE INTO AND OUT OF THE SPACE BETWEEN SAID FINGER CONTACTS, EACH OF SAID FINGER CONTACTS MOUNTED FOR LIMITED PIVOTAL MOTION ABOUT A CENTRAL LONGITUDINAL AXIS OF ITS PARTIALLY CYLINDRICAL BEARING PORTION, (D) PRESSURE-PRODUCING MEANS URGING THE PARTIALLY CYLINDRICAL BEARING PORTION OF ECH FINGER CONTACT INTO HIGH PRESSURE ENGAGEMENT WITH SAID SUPPORT AT TWO CURRENT-TRANSFER LOCATIONS ON SAID CYLINDRICAL BEARING PORTION WHICH ARE CIRCUMFERENTIALLY-SPACED FROM EACH OTHER ON SAID CYLINDRICAL BEARING PORTION, ONE OF SAID CURRENT- TRANSFER LOCATIONS BEING ON THE BODY PORTION OF SAID SUPPORT AND THE OTHER BEING ON THE PROJECTING PORTION OF SAID SUPPORT (E) SAID PRESSURE-PRODUCING MEANS COMPRISNG: (I) A CAM BEARING AGAINST SAID BEARING PORTION AT A THIRD LOCATION CIRCUMFERENTIALLY SPACED FROM SAID TWO CURRENT-TRANSFER LOCATIONS, AND (II) FIRST SPRING MEANS FORCING SAID CAM INTO HIGH PRESSURE ENGAGEMENT WITH SAID BEARING PORTION AT SAID THIRD LOCATION, (F) AND ADDITIONAL SPRING MEANS URGING SAID OTHER ENDS OF SAID FINGER CONTACTS TOWARD EACH OTHER.