Wall supporting structural beam

Claim 1

A BEAM FOR STRUCTURALLY SUPPORTING A PAIR OF PANEL MEMBERS OF DISPARATE THICKNESS IN A COMMON PLANE IN EDGE-TO-EDGE RELATION TO EACH OTHER AND IN FIXED SPACED PARALLEL RELATION TO AN OPPOSITE PANEL MEMBER TO FORM A DOUBLE-WALL STRUCTURE, COMPRISING A MAIN WEB PORTION DISPOSED IN A PLANE NORMAL TO THE PANEL SURFACES, LATERALLY EXTENDING FLANGE MEANS ALONG ONE MARGINAL EDGE OF SAID WEB PORTION DISPOSED IN PARALLEL CONTINUOUS RELATION WITH A SURFACE OF SAID OPPOSITE PANEL MEMBER FOR RECEIVING A PANEL -FASTENING MEMBER IN INTERLOCKING RELATION THERETHROUGH, THE OTHER MARGINAL EDGE OF SAID MAIN WEB BEING DISPLACED LATERALLY TO FORM AN AUXILIARY WEB INTEGRALLY INTERCONNECTED WITH THE MAIN WEB BY A TRANSVERSE PORTION, SAID TRANSVERSE PORTION COMPRISING A FIRST PART EXTENDING AWAY FROM SAID MAIN WEB AND A SECOND PART REBENT ABOVE SAID FIRST PART TOWARD SAID MAIN WEB, SAID AUXILIARY WEB EXTENDING PARALLEL TO SAID MAIN WEB SUBSTANTIALLY INTERMEDIATE SAID FIRST PART FROM THE MARGINAL EDGE OF SAID SECOND PART, SAID FRIST PART FORMING A LATERAL ABUTMENT SURFACE FOR THE MARGINAL SURFACE OF ONE OF SAID PAIR OF PANEL MEMBERS, SAID SECOND REBENT PART FORMING AN OPPOSING LATERAL ABUTMENT SURFACE FOR THE MARGINAL SURFACE OF THE OTHER OF SAID PAIR OF PANEL MEMBERS, SAID AUXILIARY WEB BEING DISPOSED BETWEEN THE MATING EDGES OF SAID PAIR OF PANEL MEMBERS, AND MEANS COACTING WITH SAID AUXILIARY WEB IN SPACED RELATION FROM SAID LATERAL ABUTMENT SURFACES FOR ENGAGING AND RETAINING SAID PAIR OF PANEL MEMEBRS IN FIXED ABUTTING RELATION THEREAGAINST.