Circuit breaker with improved electromagnetic tripping device

Claim 1

IN A CIRCUIT BREAKER HAVING A MOVABLE CONTACT CARRYING ARM AND A SPRING ACTUATED RELEASE ARM, MEANS FOR NORMALLY RESTRAINING SAID RELEASE ARM, SAID MEANS COMPRISING A BI-METALLIC STRIP, A MAGNETIC CORE MOUNTED ON THE FREE END OF THE BI-METALLIC STRIP, SAID CORE HAVING TWO SPACED ARMS, A COOPERATING MAGNETICALLY RESPONSIVE ARMATURE MOUNTED IN SPACED RELATIONSHIP WITH A PORTION OF SAID CORE, A CONTINUOUS BRAIDED FLEXIBLE CURRENT CARRYING CONDUCTOR SECURED TO THE FREE END OF THE BI-METALLIC STRIP AND SAID MOVABLE CONTACT CARRYING ARM, SAID CONDUCTOR EXTENDING UPWARDLY BETWEEN THE ARMS OF THE CORE, COVER AND AROUND ONE ARM, AND PASSING BETWEEN THE CORE AND THE UPWARDLY EXTENDING PORTION OF THE CONDUCTOR, THE PORTION OF SAID CONDUCTOR ADJACENT TO SAID CORE BEING COVERED WITH INSULATING MATERIAL, SAID CONDUCTOR BEING KNOTTED SUFFICIENTLY TAUT TO PROVIDE A FRICTIONAL GRIP UPON SAID CORE, THEREBY RELIEVING THE STRESS AT THE JUNCTURE OF SAID BRAIDED CONDUCTOR AND BI-METALLIC STRIP WHEREBY A STRONG MAGNETIC FIELD IS ESTABLISHED BETWEEN THE CORE AND ARMATURE, AND THE PORTION OF THE CORE SPACED FROM THE ARMATURE IS DRAWN TOWARD THE ARMATURE UPON AN EXCESSIVE CURRENT OVERLOAD TO EFFECT RELEASE OF THE RELEASE ARM.