This section is from the book "Cassell's Cyclopaedia Of Mechanics", by Paul N. Hasluck. Also available from Amazon: Cassell's Cyclopaedia Of Mechanics.
The strong useful chair illustrated below is suitable for children in their teens, and will stand wear and tear for a great many years, provided it is made from a hard wood. All the spindles can be made with spokeshave and plane, and also the top for the back and seat if desired; or they can be obtained cut to pattern for a few pence extra from any timber merchant. For the ^ eat. a piece 16 in. by 12 in. by 1 1/2 in. is required, cut to the shape shown at Fig. 3. The underneath part can be left in the rough. Bore through it fifteen holes i in. diameter in a slanting direction, at distances given on Fig. 3. Into the holes at the sides fit eight spindles 10 in. long (9 1/2 in. when trimmed flush), 3/4in. diameter, tapered at the ends so as to fit tight in the holes made for them; these spindles form sides for arm-rests. For the arm-rests two pieces are required, 12iin. long, 1 1/2 in. wide, and 3/4 in. thick, cut to the shape shown at Fig. 4; through these are bored five holes, four holes 5/8 in. diameter, and one hole 3/4 in. diameter, at distances shown on Fig. 4, starting from the front part of the arm into which the spindles fit. The top for the back is cut from 1 1/2in. wood to the shape and measurements shown at Fig. 5, and has holes bored halfway through to receive the back spindles, of which seven are required, 20 in. long, 3/4in. diameter, and tapered at the ends to fit into 5/8-in. holes. For the legs four pieces are required, 15 1/2 in. long, 1 in. diameter, and tapered a little smaller at the top to fit in the holes made for them in the seat, which should be | in. diameter. Pitted in the sides of the legs are two spindles, 10 1/2 in. long and fin. diameter in the centre, tapered at each end to -i in. diameter; into these is fitted across a spindle 15 in, long and iin. diameter. Before fitting the legs into the seat, fix the spindle into the legs, and then the legs into the seat; the legs are 14in. long when trimmed flush with the seat; also trim the back and arm spindles flush. The arm-rests must be fitted on before the top of the back, so as to allow two of the back spindles to pass through the ends of the arm-rests. Then fit on the top of the back, and the chair is ready for decoration by paint or enamel.
The measurements could be altered so as to make the chair suitable for an adult.



Fig. 2. How To Make a Child's Chair.
 
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