Device for attaching fabric or similar material to support

Claim 1

A DEVICE FOR REMOVABLY SECURING A SHEET OF DEFORMABLE MATERIAL SUCH A FABRIC OKR PLASTIC TO A SUPPORTING SURFACE COMPRISING A BASE MEMBER OF RESILIENT MATERIAL HAVING A BASE SURFACE ADAPTED TO BE SECURED TO SAID SUPPORTING SURFACE, A LONGITUDINALLY EXTENDING RECESS FORMED IN SAID BASE MEMBER, SAID RECESS HAVING A SECTIONAL CONFIGURATION OFAN EQUILATERAL TRIANGLE WITH THE SIDE EXTENDING TOWARD SAID BASE SURFACE AND WITH THE SIDE OPPOSITE SAID ONE APEX EXTENDING PARALLEL TO SAID BASE SURFACE, A CONTINUOUS SLOT COMMUNICATING WITH SAID RECESS ALONG THE SIDE OPPOSITE SAID ONE APEX, SAID SLOT HAVING A WIDTH LESS THAN THE LENGTH OF SAID SIDE, THEREBY FORMING A PAIR OF INWARDLY FACING SHOULDERS ONE ONE EACH SIDE OF SAID SLOT, SAID SLOT HAVING INWARDLY CONVERGING SIDE WALLS, AN INSERT MEMBER HAVING THE SECTIONAL CONFIGURATION OF AN EQUILATERAL TRIANGLE SMALLER THAN SAID TRIANGULAR RECESS BUT WITH EACH LEG THEREOF HAVING A LENGTH GREATER THAN THE WIDTH OF SAID SLOT WHEREBY THE SHEET OF MATERIAL TO BE SECURED CAN BE WRAPPED AROUND AT LEAST ONE APEX OF THE INSERT MEMBER AND SAID ONE APEX INSERTED IN THE SLOT, THE INSERT MEMBER SERVING AS A WEDGE TO SPREAD THE SIDE WALLS OF THE SLOT WHEN THE INSERT MEMBER AND MATERIAL ARE PUSHED THROUGH THE SLOT INTO THE RECESS AND INTO OVERLAPPING ENGAGEMENT WITH SAID INWARDLY FACING SHOULDERS, AND MEANS FOR SECURING THE BASE MEMBER TO SAID SUPPORTING SURFACE.

Claim 2

A DEVICE FOR REMOVABLY SECURING A SHEET OF DEFORMABLE MATERIAL SUCH A FABRIC OKR PLASTIC TO A SUPPORTING SURFACE COMPRISING A BASE MEMBER OF RESILIENT MATERIAL HAVING A BASE SURFACE ADAPTED TO BE SECURED TO SAID SUPPORTING SURFACE, A LONGITUDINALLY EXTENDING RECESS FORMED IN SAID BASE MEMBER, SAID RECESS HAVING A SECTIONAL CONFIGURATION OFAN EQUILATERAL TRIANGLE WITH THE SIDE EXTENDING TOWARD SAID BASE SURFACE AND WITH THE SIDE OPPOSITE SAID ONE APEX EXTENDING PARALLEL TO SAID BASE SURFACE, A CONTINUOUS SLOT COMMUNICATING WITH SAID RECESS ALONG THE SIDE OPPOSITE SAID ONE APEX, SAID SLOT HAVING A WIDTH LESS THAN THE LENGTH OF SAID SIDE, THEREBY FORMING A PAIR OF INWARDLY FACING SHOULDERS ONE ONE EACH SIDE OF SAID SLOT, SAID SLOT HAVING INWARDLY CONVERGING SIDE WALLS, AN INSERT MEMBER HAVING THE SECTIONAL CONFIGURATION OF AN EQUILATERAL TRIANGLE SMALLER THAN SAID TRIANGULAR RECESS BUT WITH EACH LEG THEREOF HAVING A LENGTH GREATER THAN THE WIDTH OF SAID SLOT WHEREBY THE SHEET OF MATERIAL TO BE SECURED CAN BE WRAPPED AROUND AT LEAST ONE APEX OF THE INSERT MEMBER AND SAID ONE APEX INSERTED IN THE SLOT, THE INSERT MEMBER SERVING AS A WEDGE TO SPREAD THE SIDE WALLS OF THE SLOT WHEN THE INSERT MEMBER AND MATERIAL ARE PUSHED THROUGH THE SLOT INTO THE RECESS AND INTO OVERLAPPING ENGAGEMENT WITH SAID INWARDLY FACING SHOULDERS, AND MEANS FOR SECURING THE BASE MEMBER TO SAID SUPPORTING SURFACE.