Ruskin

Claim 1

IN A BOX A PLASTIC RECEPTACLE HAVING A LEDGE, A FULCRUM BAR UPWARDLY SPACED FROM SAID LEDGE AND DEFINING IN CROSS SECTION A BOTTOM SUBSTANTATIALLY HORIZONTAL RECTILINEAR FACE AND VERTICAL RECTILINEAR FACE SUBSTANTIALLY NORMAL TO SAID BOTTOM HORIZONTAL FACE, SAID FACES DEFINING AN APEX PORTION AT THE LOWER INNER CORNER OF SAID BAR, AND BAR HAVING AN OUTSIDE CONVEX CAM FACE OPPOSITE SAID APEX PORTION AND MERGING WITH SAID FACES TO DEFINE THEREWITH CORNER PORTIONS SPACED FROM SAID APEX PORTION, SPACED BRACES INTERCONNECTING SAID BAR AND LEDGE AND DEFINING THEREWITH SPACED OPENINGS, A PLASTIC COVER HAVING AN INTERRUPTED OUTSIDE DEPENDING WALL DEFINING SPACED RESILIENT EARS EACH HAVING A LATERALLY EXTENDING LIP PROJECTING IN A DIRECTION TOWARDS SAID VERTIVAL FACE, MEANS INTEGRALLY DEPENDING FROM A PART OF SAID COVER AND SPACED FORWARDLY OF SAID OUTSIDE DEPENDING WALL AND EMBODYING RESILIENT SPACED WEBS STAGGERED IN RESPECT TO SAID SPACED EARS AND DEFINING WITH SAID COVER SPACED RECESSES FOR RECEPTION OF SAID BRACES AND COMPRISING RESILIENT BRIDGE MEANS INTERCONNETING THE LOWER PORTINS OF SAID SPECED WEBS AND HAVING SPACED LIPS SPACED FROM, IN ALINEMENT WITH AND OPPOSING SAID FIRST MENTIONED LIPS AND NORMALLY DEFINING THEREWITH GAPS HAVING A WIDTH LESS THAN THE THICKNESS OF FULCRUM BAR, AND CONVEX CAM FACE COOPERATIANG TO SLIGHTLY SPREAD SAID LIPS UPON SHIFTING OF SAID COVER DOWNWARDLY TOWARDS AND AGAINST SAID FULL CRUM BAR TO PERMIT SAID LIPS TO SNAP OVER AND UNDER SAID VERTCAL FACE AND CAM FACE TO PROVIDE FOR AUTOMATIC RETRACTION OF SAID LIPS INTO SAID OPENINGS BELOW SAID BOTTOM HORIZONTAL FACE AND APEX PORTION AND UNDER SAID BAR TO MOVABLY INTERLOCK THEREWITH AND PROVIDE A HINGE CONNECTION BETWEEN SAID COVER AND RECEPTACLE, SAID WEB AND EARS COOPERATING WITH SAID CORNER PORTIONS TO HOLD SAID COVER PARTIALLY PIVOTALLY RAISED FROM SAID RECEPTACLE.