The Wheel Shaft should be a trifle shorter than the inside width of the can, and enough smaller than the ¼-inch hole in the wheel side pieces so the wheel will turn freely. Locate the centers for the axle upon the two sides of the can, in the proper position so there will be the same margin above and at the ends of the wheel. Drive a nail through each side of the can into the axle end.
Fig. 65.—The Completed Water-motor Wheel.
Figs. 66 and 67.—Details of Water-motor Wheel.
An Outlet for the water after it has passed over the wheel paddles must be provided, and the best way is to fasten a strip to two opposite sides of the can so as to raise the bottom about an inch, as shown in [Figs. 62], [63], and [64].
For a Pulley-belt use a piece of heavy cord. Cut a slot through the front of the can for the belt to run through, and make this slot large enough so the cord will not rub against the sides ([Fig. 63]).
Pulley-wheels for attaining different speeds can be made of spools of various sizes. A bicycle wheel with the tire removed, mounted in a frame, is excellent for a large wheel.
Figs. 68-69.—How to Make a Water-tight Connection between Faucet and Water-motor.