** A Homemade Steam Turbine [20]
By WILLIAM H. WARNECKE
Procure some brass, about 3/16 in. thick and 4 in. square; 53
steel pens, not over 1/4 in. in width at the shank; two enameled,
or tin, saucers or pans, having a diameter on the inside part of
about 4-1/2 in.; two stopcocks with 1/8 in. holes; one shaft; some
pieces of
[Illustration: Details of Turbine]
brass, 1/4 in. thick, and several 1/8-in. machine screws.
Lay out two circles on the 3/16-in. brass, one having a diameter
of 3-1/2 in. and the other with a diameter of 2-3/4 in. The
outside circle is the size of the finished brass wheel, while the
inside circle indicates the depth to which the slots are to be
cut. Mark the point where a hole is to be drilled for the shaft,
also locate the drill holes, as shown at A, Fig. 1. After the
shaft hole and the holes A are drilled in the disk, it can be used
as template for drilling the side plates C.
The rim of the disk is divided into 53 equal parts and radial
lines drawn from rim to line B, indicating the depth of the slots.
Slots are cut in the disk with a hacksaw on the radial lines.
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