Door construction

Claim 1

IN A DOOR CONSTRUCTION INCLUDING A PAIR OF VERTICAL STILES AND A PAIR OF HORIZONTAL RAILS FORMING A FRAME FOR A PANEL MEMBER, A RIDGE FIXED TO EACH OF SAID RAILS AND EXTENDING CONTINUOUSLY FROM ONE END TO THE OTHER THEREOF, SAID RIDGE DEFINING AN INTERNAL TIE ROD PASSAGE, A TIE ROD EXTENDING THROUGH EACH OF SAID PASSAGES AND FASTENED AT ITS OPPOSITE ENDS TO THE RESPECTIVE STILES TO FORM STRONG JOINTS BETWEEN THE STILES AND RAILS, SAID STILES EACH BEING HOLLOW WITH THEIR WALLS DEFINING SUBSTANTIALLY RECTANGULAR CROSS SECTION PASSAGEWAYS EXTENDING LONGITUDINALLY THEREOF, AN ANGLE MEMBER FOR EACH END OF EACH TIE ROD HAVING TWO MUTUALLY PERPENDICULAR LEGS, ONE LEG OF EACH ANGLE MEMBER EXTENDING INTO THE PASSAGEWAY OF ITS RESPECTIVE STILE AND THE OTHER END EXTENDING ALONG THE ADJACENT HORIZONTAL RAIL, EACH ANGLE MEMBER HAVING A TIE ROD HOLE EXTENDING THROUGH SAID ONE LEG THEREOF, EACH OF SAID STILES ALSO HAVING TIE ROD HOLES THROUGH THEIR INNER WALLS ALIGNED WITH THE RESPECTIVE TIE ROD PASSAGES IN SAID RIDGES AND THE RESPECTIVE TIE ROD HOLES IN SAID ANGLE MEMBERS, SAID ONE LEGS OF SAID ANGLE MEMBERS BEING IN CONTACT WITH SAID INNER WALLS OF THE STILES, SAID TIE RODS BEING THREADED AT EACH OF THEIR ENDS AND EXTENDING THROUGH THE RESPECTIVE TIE ROD HOLES, AND A NUT FOR EACH END OF EACH TIE ROD HAVING AN OUTER DIMENSION LARGER THAN THE OUTER DIMENSION OF THE TIE ROD HOLES AND ENGAGING EACH THREADED END OF EACH TIE ROD AND BEARING CLOSELY AGAINST THE RESPECTIVE ANGLE MEMBER TO PLACE THE TIE RODS UNDER TENSION AND THEREBY STRENGTHEN THE CORNER JOINTS BETWEEN STILES AND RAILS.