| 摘要 |
A cut-off saw for cutting through the signatures of a book transversely to the plane of the signatures when the book is clamped firmly together. The cutting element of the saw is a thick rotatable disc having a number of blades mounted on the periphery thereof and extending outwardly therefrom in the plane of the disc. Each of the blades has a relief in its leading edge, a side rake extending toward its trailing edge, and a bevelled end portion extending radially inwardly toward its trailing edge. There is provided a slidably supported plate which can be positioned adjacent to the path of travel of the blades in order to serve as an anvil against which the blades can shear the paper.
|
