Core type a.c. welding transformer

Claim 1

A WELDING TRANSFORMER OF THE CORE TYPE COMPRISING A GENERALLY RECTANGULAR CORE COMPRISING OF OUTER CORE LEGS WITH AN INTERMEDIATE LEG CONNECTED TRANSVERSE OF ONE PAIR OF SAID OUTER CORE LEGS, INDUCTIVELY COUPLED PRIMARY AND SECONDARY WINDINGS ON ONE OUTER CORE LEG OF SAID RECTANGULAR CORE ON ONE SIDE OF SAID INTERMEDIATE LEG, SAID PRIMARY WINDING ADAPTED TO PRODUCE AN A.C. FLUX THROUGH THE OUTER CORE LEGS AND SAID INTERMEDIATE LEG OF SAID RECTANGULAR CORE, A GAP IN THE OUTER CORE LEG ON THE OPPOSITE SIDE OF SAID PARALLEL WITH SAID INTERMEDIATE LEG, SAID GAP DISPOSED NORMAL TO SAID INTERMEDIATE LEG, A FLUX DIVERTER CONNECTED IN SAID GAP FOR MOVEMENT NORMAL TO AND TOWARD AND AWAY FROM SAID INTERMEDIATE LEG, A REACTANCE WINDING CONNECTED ABOUT SAID FLUX DIVERTER BETWEEN SAID GAP AND INTERMEDIATE LEG, A WINDING CIRCUIT INCLUDNG SAID SECONDARY WINDING AND SAID REACTANCE WINDING CONNECTED IN SERIES, AND SAID FLUX DIVERTER CONNECTED FOR MOVEMENT THROUGH SAID RECTANCE WINDING TO VARY THE A.C. FLUX IN SAID CORE AND THE CURRENT IN THE WELDING CIRCUIT WHEN THE WELDING ARC IS STRUCK.