Page:The Art of Bookbinding, Zaehnsdorf, 1890.djvu/90

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60
BOOKBINDING.

machine is not in use, in fact I may say that, without speaking only of cloth books, for they must always be cut by machinery owing to the price not allowing them to be done otherwise, there are very few books, not even excepting extra books, that have escaped the cutting machine.

Cross-hatched drawing of a heavy, flat, clamp-like device.

Cutting Press and Plough.

All cutting "presses" are used in the same way. The plough running over the press, its left cheek running between two guides fastened on the left cheek of the press. By turning the screw of the plough the right cheek is advanced towards the left; the knife fixed on the right of

A rectangle with a pointed right-hand end.
Sliding Knife.

the plough is advanced, and with the point cuts gradually through the boards or paper secured in the press, as already described in preparing the boards. There are two kinds of ploughs in use—in one the knife is bolted, in the other the knife slides in a dovetail groove—termed respectively