GB807470A - Improvements in or relating to the binding of books - Google Patents

Abstract

807,470. Bookbinding. CAWTHORNE, T. A. April 12, 1957 [April 27, 1956], No. 13016/56. Class 16 A method of binding books comprises assembling cut individual pages 1 on twopage folios in a pack, providing a plurality of grooves 3 in the inner margin of the pack or a plurality of holes (not shown) through the pack near the margin, the grooves 3 or holes lying substantially at right angles to the spine of the book, locating elastic threads 5 in the grooves 3 or holes, and sticking the pages 1 together at their inner margins with an elastic adhesive 4 which penetrates a short distance between the pages 1 or folios and secures the elastic threads 5 in the grooves 3 or holes. Suggested adhesives have a base of polyvinyl chloride or polymeric acrylic compounds, rubber latex, synthetic or chlorinated rubber, or tne condensation products derived from butadiene, isoprene and isocyanates. The elastic threads 5 may be textile-covered and are preferably laid in the grooves 3 or threaded through the holes in an untensdoned state. To complete the binding, tapes 7 are stuck along one edge 15 end papers 6 (Fig. 4), and along the other edge to the inner edges of the front and back pages 1 and a further layer of tape 9 is secured to the spine, leaving strips 10 which are stuck to the cover 11, the outer leaf of each end paper 6 also being stuck over its whole area to the cover 11.