Panel structure

Claim 1

A PANEL STRUCTURE COMPRISING TOP AND BOTTOM RAILS AND SIDE STILES FORMING A FRAME AND A PANEL SECURED THEREIN, SAID STILES HAVING A U-SHAPED CROSS SECTION WITH BIGHT PORTION AND LEGS EXTENDING THEREFROM AND RECEIVING THE PANEL THEREBETWEEN, SAID RAILS BEING OF MODIFIED HSHAPE CROSS SECTION HAVING SIDE LEGS AND A CROSS WEB, THE CROSS WEB BEING POSITIONED IN RELATIVELY CLOSE SPACED RELATION TO ONE EDGE AND SAID ONE EDGE HAVING FLANGES EXTENDING INWARDLY TOWARD EACH OTHER FROM THE ADJACENT LEGS AND FORMING SAID ONE EDGE OF THE RAILS, THE SPACE BETWEEN THE ADJACENT LEGS OF THE RAILS, THE SPACE OF THE H-SHAPED CROSS SECTION FROM SAID TRANSVERSELY EXTENDING FLANGES RECEIVING THE ADJACENT EDGE OF THE PANEL, THE TRANSVERSELY EXTENDING FLANGES ON SAID RAILS BEING SPACED FROM SAID CROSS WEB A DISTANCE APPROXIMATELY EQUAL TO THE THICKNESS OF THE BIGHT PORTION OF SAID STILES, SAID STILES AT EACH END HAVING THEIR SIDE PORTIONS REMOVED TO LEAVE AN EXTENDING BIGHT PORTION OF SAID U-SHAPED CHANNEL, SAID EXTENDING BIGHT PORTION HAVING THE OUTER END PORTION THEREOF BENT TRANSVERSELY IN FROM THE ADJACENT EXTENDING BIGHT PORTION TO FORM A TONGUE OVERLYING IN SPACED RELATION THEREFROM THE ADJACENT U-SHAPED CHANNEL PORTION OF EACH STILE, EACH END OF SAID TOP AND BOTTOM RAILS BEING RECEIVED IN ABUTTING RELATION AT THE ENDS OF THE SIDE STILES AND HAVING THE TRANSVERSELY EXTENDING BIGHT PORTIONS OF THE STILES FRICTIONALLY RECEIVED AND SECURELY HELD IN THE RESPECTIVE ADJACENT ENDS OF THE RAILS IN SAID SPACE BETWEEN ITS CROSS WEB AND SAID INWARDLY EXTENDING FLANGES.