This section is from the book "Spons' Mechanics' Own Book: A Manual For Handicraftsmen And Amateurs", by Edward Spon. Also available from Amazon: Spons' Mechanics' Own Book.
Here a new difficulty arises, in that the size of the articles necessitates 3 or more skins being joined together. If the seat is plain, the skins may be cut quite square across it, joined with a small welt, pinned over on the first stuffing, and cut to shape; the border is well strained round to avoid fulness, and joined up to the seat as in the first example, the scroll and pad at the back being dealt with in a similar manner.
If the seat is to be buttoned, the skins may not be large enough to tack down. Then the places for the tufts are marked on the first stuffing, allowing the first row to be 3 1/2 in. from the front edge of the seat, and the diamonds 7 in. crosswise by 5 1/2 in. lengthwise: small holes are cut in the scrim where the tufts come. In marking out the skins, the fulness allowed is 2 in. across the seat by 1 3/4 in. along it for each diamond, making 9 in. by 7 1/4 in. on the skin, the seat having a full sweep across it, but being straight in the length. It is convenient to mark out on a sheet of paper as many full-sized diamonds as a skin will cut, adjusting this in the most economical manner on the skin, and marking it through. Each skin added to form the length must be joined exactly at the diamond edges, as shown in Fig. 733. The neck of each skin is placed at the back of the seat, and if the skin should not be long enough, the necessary piecing is done at the back edge. The button marks must meet accurately and be sewn through.
The bordering and welting do not differ from the first example.
For a buttoned scroll about 1 1/2 skins will generally be required; and in marking the diamonds on the scrim they should begin at about 8 in. from the seat, and be 7 in. crosswise and 5 in. lengthwise, allowing 1 1/2 in. on each diamond for crosswise fulness, and increasing 1 in. for every line in lengthwise fulness (e. g. l 1/2 in. on the first, 2 1/2 in. on the second, and so on), in the case of ordinary scrolls, though of course some variation will arise according to the shortness or fulness of the curve, necessitating the greatest judgment if a perfect shaped scroll is to be the result. The correct fulness allowance on each diamond in stuffing the back is about 1 1/8 in., and to reduce the liability to wrinkle across the diamonds the lowest row of buttons on the back may be a little above that on the scroll. For arm pads, if present, 10 in. leather will be wide enough, and small pieces may be used up by joining in the plaits; the buttons are placed about 5 in. apart, and secured by twine passed through the middle of the pad and tacked on each side.