Sliding closure construction

Claim 1

A SLIDING CLOSURE CONSTRUCTION INCLUDING A RECTANGULAR WALL FRAME HAVING A HORIZONTAL SILL, AT LEAST ONE RECTANGULAR CLOSURE PANEL FIXEDLY MOUNTED IN SAID WALL FRAME, AT LEAST ONE RECTANGULAR SLIDABLE CLOSURE PANEL FORMED BY AT LEAST ONE GLASS PANE ENCLOSED BY A PAIR OF SPACED HORIZONTAL TOP AND BOTTOM RAILS INTERCONNECTED AT THEIR ENDS TO A PAIR OF SPACED VERTICAL STILE MEMBERS, SAID SLIDABLE CLOSURE BEING DISPOSED IN SAID WALL FRAME FOR MOVEMENT FROM AN OPEN POSITION TO A CLOSED POSITION; A FIRST PAIR OF LONGITUDINALLY EXTENDING REINFORCING MEMBERS DISPOSED ALONG THE OUTER LONGITUDINAL SURFACE OF EACH SAID STILE MEMBERS AND EXTENDING FROM END TO END THEREOF, RESPECTIVELY; A SECOND PAIR OF LONGITUDINALLY EXTENDING REINFORCING MEMBERS DISPOSED ALONG THE OUTER LONGITUDINALLY EXTEN SURFACE OF EACH SAID RAIL MEMBERS AND EXTENDING FROM END TO END THEREOF, RESPECTIVELY, EACH SAID REINFORCING MEMBER OF SAID SECOND PAIR HAVING A TAB EXTENDING GENERALLY PERPENDICULAR THERETO FROM EACH END THEREOF; AND MEANS INTERCONNECTING EACH SAID TAB WITH AN ADJACENT REINFORCING MEMBER END PORTION AT THE OUTER SURFACE THEREOF, A NOTCH FORMED IN THE BOTTOM OF SAID BOTTOM RAIL ADJACENT EACH END THEREOF, SAID REINFORCING MEMBER OF SAID SECOND PAIR DISPOSED ALONG SAID BOTTOM RAIL COMPRISING AN ELONGATED CHANNEL MEMBER FIXED TO THE BOTTOM OF SAID BOTTOM RAIL, A PAIR OF ROLLER ASSEMBLIES CARRIED BY SAID CHANNEL MEMBER ONE ADJACENT EACH SAID NOTCH, A CAM SURFACE FORMED ON EACH SAID ROLLER ASSEMBLY AND POSITIONED TO ENGAGE A PORTION OF SAID CHANNEL MEMBER, AND MEANS FOR MOVING SAID ROLLER ASSEMBLIES IN A LONGITUDINAL DIRECTION RELATIVE TO SAID CHANNEL MEMBER WHEN SAID SLIDABLE CLOSURE PANEL IS MOUNTED IN SAID WALL FRAME TO VERTICALLY ADJUST SAID SLIDABLE CLOSURE RELATIVE TO SAID WALL FRAME, SEALING MEANS MOUNTED ON SAID WALL FRAME AND SAID CLOSURE PANELS TO PROVIDE A WEATHERTIGHT SEAL BETWEEN SAID PANELS AND BETWEEN SAID PANELS AND SAID WALL FRAME WHEN THE SLIDABLE PANEL IS IN ITS CLOSED POSITION, A PLATE MEMBER MOUNTED ON SAID SILL, A RESILIENT PAD CARRIED BY SAID PLATE MEMBER, THE UPPER SURFACE OF SAID PLATE MEMBER BEING SLOPED DOWNWARDLY AWAY FROM SAID RESILIENT PAD ON EITHER SIDE THEREOF, A WEDGE CARRIED BY SAID SLIDABLE PANEL AND ADAPTED TO ENGAGE SAID RESILIENT PAD WHEN SAID SLIDABLE PANEL IS IN ITS CLOSED POSITION, AND A PLASTIC STRIP DISPOSED ALONG THE UPPER PORTION OF SAID SILL ADAPTED TO ACT AS A TEMPERATURE BARRIER TO RESIST THE FORMATION OF FROST ON THE INTERIOR PORTION OF SAID SILL.