Self-binder for books, pamphlets and the like

Claim 1

A book-binding construction for rebinding books, of different size and thickness which have damaged or worn or missing cOvers, including in combination a book which has front, back and spine portions, a rebinder comprising a sheet of material, the thickness of most areas of the sheet being too stiff to bend as hinges of the rebinder and too stiff for bending around the edges of an original cover of the book, the rebinder having front and back cover panels and a spine panel covering the corresponding parts of the book, preformed grooves parallel to one another and including more than two grooves in the spine portion of the rebinder providing greater local flexibility than the other areas of the rebinder and located in positions to provide hinge lines at different regions depending upon the thickness of the book, the parallel grooves being a series of hinge line grooves in which different distances between grooves constitute a geometrical progression whereby some of the spaces are multiples of other spaces for accurate matching of the book thickness and hinge line spacing, with fewer grooves, by shifting the book transversely of the hinge lines, the strength of the hinge lines being sufficient for an original cover, the shet material being a continuous piece that extends across the front and back portions and the spine portion of the book and said grooves providing substitute hinges for holding in place original covers torn loose from the spine along part of the length of the hinge lines of said covers, the front and back cover panels of the rebinder being approximately parallel throughout their full extent to the front and rear portions of the book and being of approximately uniform thickness from the spine portion hinge lines to the edges of said cover panels of the rebinder, pressure-sensitive adhesive covering the inside of the rebinder that contacts with the front and back of the book, the pressure-sensitive adhesive being of a nature useable with release sheets for covering said adhesive and for stripping off prior to the application of the cover to the book, said sheet material extending beyond the edges of the front and back of the book, and the sheet material being of a consistency that can be trimmed off, with scissors, flush or to any desired extent of overhang with respect to the front and back portions of the book.