Corner adjsutable roller assembly

Claim 1

IN COMBINATION WITH A MOVABLE DOOR AND A HORIZONTALLY DISPOSED STATIONARY TRACK, SAID DOOR INCLUDING VERTICALLY DISPOSED SPACED PARALLEL SIDE MEMBERS AND A HORIZONTALLY DISPOSED BOTTOM RAIL, SAID SIDE MEMBERS INCLUDING SPACED PARALLEL VERTICALLY DISPOSED INNER AND OUTER WALL PORTIONS AND SPACED PARALLEL WALL SECTIONS, SAID BOTTOM RAIL BEING U-SHAPED IN CROSS SECTION AND INCLUDING A HORIZONTALLY DISPOSED TOP SECTION AND SPACED PARALLEL VERTICALLY DISPOSED SIDE SECTIONS, THERE BEING ABUTTING INCLINED SURFACES ON SAID SIDE MEMBERS AND BOTTOM RAIL DEFINING MITERED JOINTAS, SAID SIDE MEMBERS AND BOTTOM RAIL BEING PROVIDED WITH INWARDLY OFF-SET SHOULDERS, AN ADJUSTABLE ROLLER ASSEMBLY ARRANGED CONTIGUOUS TO EACH SAID MITERED JOINT, EACH OF SAID ADJUSTABLE ROLLER ASSEMBLIES COMPRISING A SUBSTANTIALLY L-SHAPED BRACKET WHICH INCLUDES A VERTICALLY DISPOSED FIRST PORTION ARRANGED CONTIGUOUS TO THE INNER WALL PORTION OF A SIDE MEMBER, SAID A HORIZONTALLY DISPOSED SECOND PORTION ARRANGED CONTIGUOUS TO THE LOWER SURFACE OF THE TOP SECTION OF THE BOTTOM RAIL, SAID BRACKET SERVING TO HOLD THE VERTICALLY DISPOSED SIDE MEMBERS AND HORIZONTALLY DISPOSED BOTTOM RAIL TOGETHER AND ALSO MAINTAINING THE VERTICALLY DISPOSED SIDE MEMBERS AND HORIZONTALLY DISPOSED BOTTOM RAIL IN ALIGNED RELATIONSHIP AT 90* RELATIVE TO EACH OTHER, A LEG ARRANGED AT THE JUNCTION OF THE FIRST AND SECOND PORTIONS AND INTEGRAL THEREWITH, HORIZONTALLY DISPOSED AND VERTICALLY DISPOSED PIECES INTEGRAL WITH SAID LEG AND SAID PIECES HAVING FLANGES ON THE ENDS THEREOF, A BRACE ARRANGED AT RIGHT ANGLES WITH RESPECT TO THE FIRST PORTION OF THE BRACKET AND INTEGRAL THEREWITH, A FLANGE ON SAID BRACE AND SAID FLANGES ENGAGING SAID SHOULERS, A VERTICALLY DISPOSED LEG DDEPENDING FROM THE HORIZONTAL PORTION OF THE BRACKET AND SAID LEG TERMINATING IN A FLANG FOR ENGAGING THE SHOULDERS OF THE BOTTOM RAIL, THERE BEING RECESSES IN THE SIDES OF THE HORIZONTAL PORTIONS OF THE BRACKET, AN ENLARGEMENT DEPENDING FROM THE HORIZONTAL PORTION OF THE BRACKET, AN ADJUSTABLE SUPPORT MEMBER INCLUDING A WEB PORTION HAVING AN APERTURE THEREIN, SUCH SUPPORT MEMBER FURTHER INCLUDING A PAIR OF SPACED PARALLEL VERTICALLY DISPOSED SIDE WALLS HAVING PORTIONS PIVOTLY CONNECTED TO SAID ENLARGEMENT, A ROLLER JOURNALED BETWEEN SAID SIDE WALLS FOR ENGAGING SAID TRACK, A SCREW MEMBER EXTENDING THROUGH A PORTION OF THE BRACKET AND THROUGH THE APERTURE IN THE WEB PORTION OF THE SUPPORT MEMBER, A FASTENER ARRANGED IN THREADED ENGAGEMENT WITH SCREW MEMBER, SAID SCREW MEMBER HAVING AN ENLARGED HEAD PROVIDED WITH A KERF, THERE BEING AN ACCESS OPENING IN THE LOWER OUTER PORTION OF THE SIDE MEMBER FOR PERMITTING A TOOL TO ENGAGE THE KERF IN THE HEAD OF THE SCREW MEMBER.