Bookbinding system
AssigneeGeneral Binding Corporation
InventorJerome J. Wiermanski
Life of this patent
Estimating the term…
Abstract
A book cover structure of the type having a spine with front and back cover structures connected to the spine and separated from the spine by scribes to enable the front and back cover structures to flex relative to the spine. A spine strip of hot metal adhesive is secured on an inside face area of the spine. Spacer means for holding sheets in engagement with the spine strip are spaced inwardly of the scribes and comprise a pair of cover strips of hot melt adhesive secured to inside surface areas of the front and back cover structures in spaced adjacency to the scribes with the scribes separating the hot melt adhesive strips on the covers from the strip of hot melt adhesive strip on the spine.
Claims8
A book cover structure of the type having a spine with front and back covers connected to the spine and separated from the spine by scribes to enable the front and back covers to flex relative to the spine, the improvement comprising a spine strip of hot melt adhesive being secured on an inside face area of said spine, and spacer means for holding sheets in engagement with said spine strip spaced outwardly of said scribes comprising a pair of cover strips of hot melt adhesive secured to inside surface areas of the front and back covers in spaced adjacency to the scribes with the scribes separating the hot melt adhesive strips on the covers from the strip of hot melt adhesive on the spine.
A method for book binding including a book cover structure of the type having a spine with front and back covers connected to the spine and separated from the spine by scribes to enable the front and back covers to flex relative to the spine, the steps of securing a spine strip of hot melt adhesive on an inside face area of said spine, and securing a pair of cover strips of hot melt adhesive to inside surface areas of the front and back covers in spaced adjacency to the scribes with the scribes separating the hot melt adhesive strips on the covers from the strip of hot melt adhesive strip on the spine, and placing a series of sheets in edge-wise relationship upon said spine strip of hot melt adhesive inwardly of said scribes and with said spine strip of hot melt adhesive being heated to produce a bond joining lower edges of the sheets with the spine of the book cover, said cover strips of hot melt adhesive being bonded with opposed surface areas of outside ones of said sheets at the areas of said scribes thus providing further securement for the sheets secured with said spine.
Dependencies are inferred from the claim text.