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 accompanying illustration shows a sledge for two persons; it can, however, be shortened to accommodate one person only. It is 5ft. long, 1ft. 5 in. wide, and 1ft. 4 1/8 in. deep, and should be made of red wood, being afterwards painted. The tides A are mortised to receive three rails B, which bind them together: the rails are 3 in. broad. The sides C of the seats are dowelled to the long rails or runners A, and the seats D are nailed down. To stiffen the seats and frame, iron bands should be inserted, one below each seat, each being long enough to allow a screw to be inserted in the runner. A half-round iron strap is carried along the under edge of the runner, and curled round in the front to form a loop, as at E, to which may be attached the hauling ropes. The follow. ing is the quantity of stuff required. Two pieces, 5 ft. by 4 1/2 in. by fin.; three pieces, lft. 5 in. by 3 in. by fin.; four pieces, 11 in. by 9 in. by fin.; and two pieces, lft. 6 1/2 in. by 10 in. by 5/8 in. The following are the positions of the rails and seats.
From the nose of the sledge to the first rail is 6 in.; from the inside edge of this rail to the front of the seat is Tin.; the centre rail is immediately in the centre of the sledge, and the second seat 7 in. from this rail; the back rail is 6 in. from the end.

A Simple Sledge.
 
Continue to: