Connecting means for building panels

Claim 1

IN AN EXTERIOR SHEATH OF A BUILDING COMPRISING A PLURALITY OF GENERALLY RECTANGULAR BUILDING PANELS MAINTAINED IN OUTBOARD RELATION WITH A BUILDING STRUCTURE, EACH SAID BUILDING PANEL COMPRISING A RECTANGULAR SHEET HAVING LATERAL SURFACES WITH VERTICAL SIDE EDGES, AT LEAST TWO TRANSVERSE SUBGIRTS SECURED TO THE INNER FACE OF SAID RECTANGULAR SHEET, MEANS FOR SECURING THE SAID TRANSVERSE SUBGIRTS TO SAID BUILDING STRUCTURE, THE IMPROVEMENT COMPRISING: AN OUTWARDLY EXTENDING FLANGE ALONG THE SAID VERTICAL SIDE EDGE OF EACH SAID LATERAL SURFACE, SAID OUTWARDLY EXTENDING FLANGE BEING BOWED LATERALLY INWARDLY OF SAID VERTICAL SIDE EDGE THEREBY PROVIDING A RECEIVING WELL AT THE JUNCTURE OF SAID OUTWARDLY EXTENDING FLANGE AND THE SAID VERTICAL SIDE EDGE, THE SAID OUTWARDLY EXTENDING FLANGES OF THE ADJACENT ONES OF SAID RECTANGULAR SHEETS BEING SPACED APART; A PAIR OF TONGUES EXTENDING OUTWARDLY FROM EACH SAID TRANSVERSE SUBGIRT, SAID TONGUES BEING DISPOSED EXTERNALLY OF THE SAID VERTICAL SIDE EDGES AND ALIGNED THEREWITH; AND AN ELONGATED CAP MEMBER OF GENERALLY U-SHAPED CONFIGURATION HAVING A FACE AND TWO SPACED LEGS DEPENDING FROM THE SAID FACE, SAID LEGS BEING DISPOSED EXTERNALLY OF THE SAID OUTWARDLY EXTENDING FLANGES OF SAID ADJACENT ONES OF SAID RECTANGULAR SHEETS, EACH SAID LEG TERMINATING IN AN INTURNED LEG PORTION ENGAGED IN ONE SAID RECEIVING WELL.