This section is from the book "Cassell's Cyclopaedia Of Mechanics", by Paul N. Hasluck. Also available from Amazon: Cassell's Cyclopaedia Of Mechanics.
Procure a board 13 in. wide and 1/2 in. thick, planed smooth and as free from knots as possible. A piece 15in. long, shaped as shown in Fig. 1, firms the board A (Pigs. 1 and 3). The star at the top of the board may be cut with a fret-saw. Hub with glass-paper and make all the edges quite smooth. Cut two pieces 8 in. by 2 1/2 in. for the feet, and shape as shown in Fig. 2. When smoothed, screw them to the back of the board, in the position indicated by the dotted lines, at B (Fig. 1); see also B (Fig. 3). Procure a piece of wood 11 in. long byliin. square for the rest C (Figs. 1 and 3), bevel the edges as,shown in Fig. 1, and secure it to the front of the board by screws put in from the back. Procure two pieces of sheet brass 2in. long by 1/2 in. wide, and about 3/16in.or 1/4 in. thick. Drill a hole about 1/2 in. from one end of each strip, tile the strips to the shape shown in Fig. 1, and screw them to the rest with round brass-headed screws. Cut one piece of wood 10 in. by 2 in., and screw it to the back of the board 3 in. from the top, as indicated by the dotted-lines at D (Figs, land 2). Cut another piece of wood measuring 12; in. by 3 in. for the support E (Fig. 3), and secure it to the centre of the cross-piece D with a 1 3/4-in. back-fold hinge, as shown in the illustration. Procure a piece of fancy cord, secure one end to the board, insert the other end in a small hole bored through the support, and make a knot to keep it in place, as shown at F (Fig. 3). Make all the edges and corners quite smooth. The book-rest will look very well indeed if made of walnut and finished by French polishing. When in use, it is placed upon a table, and the support adjusted by means of the cord.

How To Make a Book-rest.
 
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