Care should be taken when attaching the wires to get the
center pole to stand perpendicular. Twelve hooks should be placed
at equal distances around the center pole about 1 ft. from the top
end. Wires are fastened to these hooks and to the twelve 2 by
4-in. pieces used for the spokes. The wires should be tied around
each spoke about 2 ft. from the ends. Space the spokes with equal
divisions and cover the outer 2 ft. of the ends with boards, as
shown in the plan sketch on the right hand end of the drawing. The
boards may be nailed or bolted. If bolted and the wires made in a
loop at the hooks, the swing can easily be taken apart and changed
from one place to another.
--Contributed by A. O. Graham, Fort Worth, Tex.
** Home-Made Arc Lamp [132]
The frame of the lamp is made from bar metal 3/4 in. wide and 1/8
in. thick, bent and welded to make a continuous loop in the shape
as shown at G in the sketch. This frame should be about 10-1/2 in.
long with the upper or wider part 4 in. long, and the lower part
6-1/2 in. long. The width should be about 5-1/4 in. at
[Illustration: Arc Lamp]
the top and 4 in.
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