High-speed pushbutton-controlled overload circuit breaker

Claim 1

A PUSHBUTTON-CONTROLLED OVERLOAD CIRCUIT BREAKER HAVING A HOUSING, ELECTROMAGNETIC RELEASING MEANS AND TRIP-FREE RELEASING MEANS WITHIN SAID HOUSING, AN ABUTMENT MEMBER IN SAID HOUSING HAVING AN INCLINED SURFACE, A PUSHBUTTON GUIDED IN AND PROJECTING FROM SAID HOUSING, A CONTROL ROD RIGIDLY SECURED TO SAID PUSHBUTTON, A DETENT ON THE LOWER END OF SAID CONTROL ROD, AN ANGULAR BRACKET PIVOTABLE AND SLIDABLE WITHIN SAID HOUSING AND HAVING TWO ARMS, A CATCH ON THE FIRST BRACKET ARM AND ASSOCIATED WITH SAID DETENT, A PAIR OF FIXED CONTACTS IN SAID HOUSING, A CONTACT BRIDGE MOUNTED ON SAID FIRST ARM SO AS TO BE SLIGHTLY PIVOTABLE THEREON AND ADAPTED TO CONNECT SAID CONTACTS TO EACH OTHER, THE SECOND BRACKET ARM BEING PRESSED AGAINST SAID INCLINED SURFACE WHEN THE CIRCUIT BREAKER IS BEING SWITCHED OFF, WHEREBY SAID BRACKET AND SAID CONTACT BRIDGE THEREON ARE PIVOTED TO AN INCLINED POSITION IN WHICH SAID DETENT IS IN ALIGNMENT WITH SAID CATCH SO THAT WHEN SAID PUSHBUTTON IS DEPRESSED, SAID DETENT WILL ENGAGE WITH SAID CATCH AND TAKE ALONG SAID BRACKET AND THE CONTACT BRIDGE THEREON, A LOCKING PAWL PIVOTABLY MOUNTED IN SAID HOUSING AND, WHEN SAID PUSHBUTTON IS BEING DPRESSED, ADAPTED TO BE ENGAGED BY SAID SECOND BRACKET ARM AND THEREBY TO BE PIVOTED TO A LOCKING POSITION IN WHICH SAID PAWL LOCKS SAID BRACKET IN A FIXED POSITION, SAID ELECTROMAGNETIC RELEASING MEANS COMPRISING AN ELECTROMAGNET HAVING A COIL, AND AN ARMATURE PIVOTABLY MOUNTED IN SAID HOUSING, A LOCKING LEVER PIVOTABLY MOUNTED IN SAID HOUSING, SAID ARMATURE WHEN PULLED UP BY SAID ELECTROMAGNET ADAPTED TO PIVOT SAID LOCKING LEVER FROM ONE POSITION IN WHICH IT HOLDS SAID PAWL IN SAID LOCKING POSITION TO ANOTHER POSITION IN WHICH IT RELEASES SAID PAWL SO AS TO PERMIT SAID PAWL TO DISENGAGE FROM SAID SECOND BRACKET ARM, SIGNAL CONTACTS IN SAID HOUSING FOR INDICATING WHEN SAID CONTACT BRIDGE IS LOCATED IN ITS ON OFF POSITIONS, AND A CONTROL MEMBER GUIDED IN SAID HOUSING AND ADAPTED TO BE MOVED BY SAID SECOND BRACKET ARM FOR OPERATING SAID SIGNAL CONTACTS, AND RELEASE MEANS RESPONSIVE TO OUTWARD MOVEMENT OF THE PUSHBUTTON TO OPEN THE CIRCUIT BREAKER.