Читать книгу The Handyman's Book of Tools, Materials, and Processes Employed in Woodworking - Paul N. Hasluck - Страница 17

The woodworker constantly uses squares for setting out and testing work, as will be described in detail later. The simplest is the try square (Fig. 12), which has a stock of rosewood or ebony. In the square shown by Fig. 13, the stock is so shaped that it is of service in setting out and testing mitres, a proper mitre square which has an ebony stock being shown by Fig. 14. Another combination try and mitre square is shown by Fig. 15, and this has an iron stock, hollowed out to lower its weight to that of a wooden one. This is a useful and cheap tool, very unlikely to get out of truth. A patent adjustable try square is illustrated by Fig. 16. The set screw clamps the blade in the stock just where it may be most convenient for such awkward work as putting butts, locks, and other fittings on doors and windows. The graduated blade is very useful. The sliding bevel is a handy appliance for setting off angles in duplicate, as by means of the set screw the blade can be made to assume any angle with the stock. Fig. 17 shows a bevel with a simple ebony stock, and Fig. 18 one with an ebony stock framed in brass, this protection keeping the edges true for an almost unlimited period. The joiner’s steel square is a mere right angle of steel, sometimes nickel plated, graduated in inches, 1/4 in., 1/16 and in. Squares with other graduations can be obtained.

Fig. 11.—Dividing Board with Rule.

Fig. 12.—Try Square.

Fig. 13.—Combination Square and Mitre.