strips H, and leaving a space of ½ inch between strips H. The axle holes in pieces G (Fig. 74) should be located in the center of the width of these pieces, and halfway between their tops and strips H. Bore the holes with a gimlet, or make them by driving a large nail through the pieces, and then withdrawing it.
Fig. 74.—Support for Water-Motor Wheel.
To Mount the Wheel upon the supports, withdraw the nails driven into the ends of axle B, slip the wheel between uprights G, and drive the nails through the holes in G back into the holes in the axle ends (Fig. 71).
The Pulley Wheel. One can cover should be converted into a pulley by winding several turns of string around it, near each edge, leaving a groove between the string. Coat the string with glue to make it stick fast to the cover.
The Water-Motor Case. Figure 70 shows how the water-motor case is constructed by fastening boards N, I, J, K, L, and I to the wheel supports G. There must be a slot through I and another through J, for the string
