Connecting structure for timbers

Claim 1

IN A BUILDING STRUCTURE A PLURALITY OF SIMILAR SUPERPOSED LOGS INTERFITTED IN CRISSCROSS RELATION, EACH OF SAID LOGS COMPRISING AN UPPER PORTION FORMING A CROWN HAVING A CONVEX CURVATURE IN CROSS SECTION, A LONGITUDINALLY EXTENDING SLOT CENTRALLY OF SAID CROWN HAVING PARALLEL SIDE PORTIONS, A BOTTOM PORTION OF SAID LOG HAVING A LONGITUDINALLY EXTENDING CONCAVELY CURVED GROOVE FORMED THEREIN VERTICALLY ALIGNED WITH SAID SLOT AND HAVING A RADIUS SUBSTANTIALLY SHORTER THAN THE RADIUS OF SAID CROWN AND HAVING LONGITUDINAL EDGE PORTIONS DEFINED AT EITHER SIDE OF SAID GROOVE, A TONGUE TAPERED IN VERTICAL CROSS SECTION EXTENDING OUTWARDLY CENTRALLY LONGITUDINALLY OF SAID CONCAVE GROOVE, SAID LOWER PORTION OF SAID LOG HAVING A TRANSVERSELY EXTENDING NOTCH THERETHROUGH HAVING ITS CHANNEL EXTENDING UPWARDLY SUBSTANTIALLY ONE-HALF OF THE HEIGHT OF SAID LOG, SAID LOG HAVING A VERTICAL GROOVE AT ONE SIDE THEREOF WITHIN ONE END PORTION OF SAID NOTCH, SAID GROOVE HAVING AN OPEN SIDE, SAID VERTICAL GROOVES IN SAID PLURALITY OF LOGS WITH SAID LOGS BEING IN SUPERPOSED CRISSCROSS RELATION BEING IN VERTICAL ALIGNMENT WITH ONE ANOTHER WHEREBY WITH EACH NOTCHED PORTION OF A LOG INTERFITTING WITH THE UPPER HALF OF THE LOG DIRECTLY THEREBELOW AT RIGHT ANGLES THERETO, A SIDE OF SAID TRANSVERSE NOTCH OVERLIES THE OPEN SIDE OF THE VERTICAL GROOVE OF SAID INTERFITTED LOGS DIRECTLY THEREBELOW FORMING A SIDE ENCLOSED VERTICAL GROOVE, SAID CONCAVE GROOVE OF EACH LOG OVERLYING THE LONGITUDINALLY EXTENDING SLOT OF THE LOG THEREBELOW, WITH SAID TAPERED TONGUE EXTENDING INTO AND BEING WEDGED WITHIN SAID SLOT TO HAVE A LINE ENGAGEMENT WITH THE UPPER END PORTIONS OF SAID SLOT, AND SAID LONGITUDINAL EDGE PORTIONS BEING DISPOSED ON SAID CROWN AT EITHER SIDE OF SAID SLOT HAVING A LINE ENGAGEMENT WITH THE SURFACE OF SAID CROWN, AND A PIN DISPOSED INTO SAID VERTICAL GROOVE HAVING WEATHER SEALING ENGAGEMENT WITH THE SIDES OF SAID GROOVE.