III. Carvers’ Screws, Fig. [10]. These are iron screws about 12 or 14 in. long, with a finer pointed screw, like that of a gimlet, at the one end, and a square at the other; on the screw is a winged or fly nut. To use them the point is screwed firmly into the under side of the work, with the fly nut removed and used as a lever by one of the holes in its wings placed on the square on the end of the shaft. The shaft is then passed through a hole made through the top of the bench or table, and the fly nut replaced on the screw below the table to fix the work down to it. The screws are long, which is sometimes convenient, but if the work be thin it is usual to put a block of waste wood on the shaft before the fly nut, to avoid the tedium of having to screw the latter up a long way. Slackening the nut enables the work to be turned round to any required position, and there is nothing above the table except the work.
IV. Snibs or Dogs, Figs. [11], [12]. These are pieces of wood screwed down to the table, which hold the panel or other piece of work by a projection. They are easily made by simply sawing out a piece of wood fairly corresponding in thickness to the panel.
Snibs or Dogs.
Fig. 13.
V. Take an ordinary “button,” Fig. [13], such as is common on cupboards in country cottages to fasten the door. Saw out a piece of the panel, one or more inches square. Put the screw through the button and turn it over the panel and the little waste piece of wood. Two or more of these will hold the work perfectly fast.