The Art of Bookbinding: A practical treatise, with plates and diagrams

by Joseph William Zaehnsdorf

When the books are very thick, two boards must be pasted together, not only to get the proper thickness, but for strength, for a made board is always stronger than a single one. If a board has to be made, a thick and a somewhat thinner board should be fastened together with paste. Paste both boards and put them in the standing press for the night. Great pressure should not be put on at first, but after allowing them to set for a few minutes, pull down the press as tight as possible. When placing made boards to the book, the thinner one should always be next the book. It may be taken as a general rule that a thinner board when pasted will always draw a thicker one. |56|

When boards are lined on one side only it is usual to turn half an inch of the paper over the square or cut edge, and the lined side must be placed next the book.

Many binders line the mill-board all over with paper before cutting; this may save time, but the edge of the board at the joint is liable to be abraised, and the resulting joint uneven.

The boards when lined should be laid about or stood up to dry, and when dry, cut to the proper and exact size for the book. As a fact, the black boards now sold are much too new or green to be used direct by the binder, they should be stocked for some months.

The requisite width is obtained by extending the compass from the back of the book to the edge of the smallest bolt or fold in the foredge. It is advisable not to measure less than this point, but to leave a leaf or two in order to show that the book is not cut down. The compasses being fixed by means of the side screw, the boards are to be knocked up even, compassed up, and placed in the lying press, in which they are cut, using, as before, the “cut-against,” and placing the runner exactly to the compass holes. When cut they are to be tested by turning one round and putting them together again; if they are the least out of truth it will be apparent at once. The head or top of the boards is next to be cut by placing a square against the back and marking the head or top with a bodkin or point of a knife. The boards being quite straight are again put into the press and cut, and when taken out should be again proved by reversing them as before, and if not true they must be recut. The length is now taken from the head of the book to the tail, and in this some judgment must be used. If the book has already been cut the measure must be somewhat larger than the book, allowing only such an amount of paper to be cut off as will make the edge smooth. If, however, the book is to |57| be entirely uncut, the size of the book is measured, and in addition the portion called squares must be added.

When a book has not been cut, the amount that is to be cut off the head will give the head or top square, and the book being measured from the head, another square or projection must be added to it, and the compass set to one of the shortest leaves in the book. Bearing in mind the article on trimming, enough of the book only should be cut to give the edge solidity for either gilding or marbling. A few leaves should always be left not cut with the plough, to show that the book has not been cut down. These few leaves are called proof, and are always a mark of careful work.

About twenty years ago it was the mode to square the foredge of the boards, then lace or draw them in, and to cut the head and tail of the boards and book together, then to turn up and cut the foredge of the book.

CHAPTER XIV. DRAWING-IN AND PRESSING.

The boards having been squared, they are to be attached to the book by lacing the ends of the cord through holes made in the board. The boards are to be laid on the book with their backs in the groove and level with the head; they must then be marked either with a lead pencil or the point of a bodkin exactly in a line with the slips, about half an inch down the board. On a piece of wood the mill-board is placed, and holes are pierced by hammering a short bodkin through on the line made, at a distance from the edge in accordance with the size of the book. About half an inch away from the back is the right distance for an |58| octavo. The board is then to be turned over, and a second hole made about half an inch away from the first ones. The boards having been holed, the slips must be scraped, pasted slightly, and tapered or pointed. Draw them tightly through the hole first made and back through the second. Tap them slightly when the board is down to prevent them from slipping and getting loose. When the cords are drawn through, cut the ends close to the board with a knife, and well hammer them down on the knocking-down iron to make the board close on the slips and hold them tight. The slips should be well and carefully hammered, as any projection will be seen with great distinctness when the book is covered. The hammer must be held perfectly even, for the slips will be cut by the edge of it if used carelessly.

The book is now to be examined, and any little alteration may be made before putting it into the standing press. With all books, a tin should be placed between the mill-board and book, to flatten the slips, and prevent their adherence. The tin is placed right up to the groove, and serves also as a guide for the pressing board. Pressing boards, the same size as the book, should be put flush with the groove, using the pressing tin as guide, and the book or books placed in the centre of the press directly under the screw, which is to be tightened as much as possible. In pressing books of various sizes, the largest book must always be put at the bottom of the press, with a block or a few pressing boards between the various sizes, in order to get equal pressure on the whole, and to allow the screw to come exactly on the centre of the books.