Book formed of plastic strips and studs

Abstract

Abstract FACE THEREOF, THE OPPOSITE SURFACE BEING IMPERFORATE, SAID STUDS BEING SMOOTH AND BEING OF UNIFORM CROSS-SECTION BETWEEN SAID STRIPS AND INITIALLY OF A LENGTH GREATER THAN THE GREATEST THICKNESS OF SAID RANGE OF THICKNESSES OF BOOKS, SAID STUDS EXTENDING THROUGH THE APERTURES IN SAID SHEETS AND THE APERTURES IN SAID SECOND STRIP, SAID STUDS SHEARED CLOSE TO THE SURFACE OF SAID SECOND STRIP OPPOSITE FROM SAID SHEETS AND FORMED WITH HEADS LARGER THAN SAID APERTURES AND SUBSTANTIALLY FILLING SAID ENLARGEMENTS AND PERMANENTLY SECURED TO SAID SECOND STRIP DIRECTLY IN ENGAGEMENT WITH THE SIDE OF SAID SECOND STRIP OPPOSITE SAID SHEETS, SAID STRIPS AT THE COMPLETION OF MAKING SAID BOOK BEING THE SAME DISTANCE APART AS THE THICKNESS OF SAID SHEETS BOUND BETWEEN SAID STRIPS SAID STRIPS BEING TOTALLY DISCONNECTED FROM EACH OTHER EXCEPT BY SAID STUDS, AND EACH SAID STRIP BEING OF SUBSTANTIALLY UNIFORM CROSSSECTION AND OF SUBSTANTIALLY UNIFORM THICKNESS THROUGHOUT FROM END TO END. 2. A BOUND BOOK COMPRISING A PLURALITY OF SHEETS EACH FORMED WITH A PLURALITY OF SPACED APERTURES ADJACENT ONE MARGIN, AND A BINDING STRUCTURE CONSISTING OF TWO COMPONENTS CLAMPING SAID SHEETS TOGETHER, AND CHARCTERIZED BY THE ABSENCE OF A SPINE CONNECTION BETWEEN THE TWO COMPONENTS AROUND THE SPINE, ONE SAID COMPONENT CONSISTING OF A FIRST THERMOPLASTIC NON-RESILIENT SELF-SUPPORTING, STRIP UNDERLYING ONE MARGIN ON ONE SIDE OF SAID BOOK AND COVERING SAID APERTURES AND EXTENDING SUBSTANTIALLY THE ENTIRE LENGTH OF SAID BOOK, THE OTHER SAID COMPONENT CONSISTING OF A SECOND (PLASTIC) THERMO-PLASTIC, NONRESILIENT SELF-SUPPORTING STRIP OVERLYING ONE MARGIN OF THE SIDE OF SAID BOOK OPPOSITE SAID FIRST STRIP AND OF A LENGTH SUBSTANTIALLY EQUAL TO SAID FIRST STRIP AND HAVING STUD RECEIVING APERTURES THEREIN FORMED WITH ENLARGEMENTS OF SAID APERTURES ON THE OUTSIDE SURFACE OF SAID SECOND STRIP, SAID STRIPS INITIALLY BEING FREELY MOVABLE TOWARD AND AWAY FROM EACH OTHER IN INFINITELY SMALL DIMENSIONS TO ACCOMMODATE A WIDE AND CONTINUOUS RANGE OF THICKNESSES OF BOOKS, (A PLURALITY OF) SAID FIRST COMPONENT FURTHER COMPRISING AT LEAST THREE STUDS (FIXED TO) INTEGRALLY MOLDED WITH SAID FIRST STRIP AND PROJECTING FROM ONE SUR-

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