Sliding panel structure

Claim 1

IN A SLIDING PANEL HAVING A SUBSTANTIALLY RECTANGULARLY SHAPED FRAME, SAID FRAME COMPRISING ELONGATED ELEMENTS EACH HAVING A PAIR OF SPACED APART SIDE WALLS AND AN END WALL AND RECESSED END WALL JOINING SAID SIDE WALLS TO FORM A SLOTTED PORTION AT SAID RECESSED END WALL AND A PLURALITY OF OPENINGS IN SAID RECESSED END WALLS, THE COMBINATION COMPRISING A PLURALITY OF ROLLER MEANS, SAID ROLLER MEANS EACH HAVING A PAIR OF SIDE WALLS IN SUBSTANTIALLY SPACED AND PARALLEL RELATION, SAID ROLLER SIDE WALLS HAVING UPPER AND LOWER EDGE PORTIONS AND END PORTIONS, AN END WALL JOINING SAID ROLLER SIDE WALLS AT ONE OF SAID END PORTIONS, SAID ROLLER SIDE WALLS HAVING ALIGNED OPENINGS IN PROXIMITY OF THE OTHER OF SAID END PORTIONS AND SAID UPPER EDGE PORTION, SHOULDER MEANS MOUNTED ON AN INNER SURFACE OF SAID ROLLER SIDE WALLS ADJACENT SAID END WALL TO FORM A SLOTTED PORTION, A LEAF SPRING SUPPORTING SAID ROLLER MEANS AND HAVING AN END PORTION RECEIVED BY SAID SLOTTED PORTION, SAID LEAF SPRING HAVING AN ARCUATE PORTION ENGAGING SAID END WALLS OF SAID FRAME, AND SHOULDER MEANS ENGAGING AN EDGE PORTION OF SAID OPENINGS IN SAID RECESSED END WALLS FOR SECURING SAID LEAF SPRING IN SAID FRAME WITH SAID ROLLER MEANS EXTENDING THROUGH SAID OPENINGS AND A CAM MOUNTED FOR SLIDABLE MOVEMENT BETWEEN SAID SIDE WALLS OF SAID FRAME, ELONGATED OPENINGS POSITIONED ON SAID SIDE WALLS AND A FASTENER EXTENDING THROUGH SAID ELONGATED OPENINGS AND SAID CAM WHEREBY SAID CAM MAY BE POSITIONED IN CONTACT RELATION WITH SAID ROLLER MEANS TO SUPPORT SAID ROLLER MEANS AND RENDER SAID LEAF SPRING INEFFECTUAL.