Procure
two collars or round pieces of brass (KK, Fig. 2) with a 5/8-in.
hole through them, and fasten these to the shaft by means of set
screws to prevent it from moving lengthwise.
Make the nozzle by taking a piece of 1/2-in. galvanized pipe 3-1/2
in. long and filling it with babbitt metal; then drill a 3/16-in.
hole through its center. Make this hole conical, tapering from
3/16 in. to a full 1/2 in. This is best done by using a square
taper reamer. Then place the nozzle in the position shown in Fig.
1, which allows the stream of water to strike the buckets full in
the center when they reach the position farthest to the right.
Take the side pieces, GG, and drill a 1-in. hole through their
sides centrally, and a 1/4-in. hole from the tops to the 1-in.
holes. Fasten them in their proper position, with the wheel and
shaft in place, the shaft projecting through the holes just
mentioned. Now block the wheel; that is, fasten it by means of
wedges or blocks of wood until the shaft is exactly in the center
of the inch holes in the side pieces. Cut four disks of cardboard
to slip over the shaft and large enough to cover the inch holes.
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