| 摘要 |
Device for roughening the edge surface of a plurality of sheets to be bound into a book, in which the sheets are clamped, with one edge surface thereof facing a rotatable cutter, which is moved along the length of the edge surface while the cutter is rotated so that the blade traverses the edge surface thereby producing successive arcuate scores in the edge surface. When adhesive is applied to the edge surface, the cuts or scores help provide a stronger binding force than if the edge surface were flat.
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