. of 11-in. wide material will be required for the
seat and each end of this is nailed securely on the under side of
the top pieces. The woodwork may be stained and varnished or plain
varnished and the cloth may be made to have a pleasing effect by
stencilling in some neat pattern.
** A Small Home-Made Electric Motor [222]
The accompanying photographs show the construction of a very
unique electric motor, the parts consisting of the frame from an
old bicycle pedal wrapped with insulated wire to make the armature
and three permanent magnets taken from an old telephone magneto.
The pedal, being ball bearing, rotated with very little friction
and at a surprisingly high rate of speed.
[Illustration: The Motor Complete]
The dust cap on the end of the pedal was removed and a battery
connection, having quite a length of threads, was soldered to it
as shown in the photograph. The flanges were removed from an
ordinary spool and two strips of brass fastened on its
circumference for the commutator. The spool was held in position
by a small binding
[Illustration: Commutator Parts]
post nut. The shape of this nut made a good pulley for a cord
belt.
--Contributed by John Shahan, Attalla, Ala.
** Rocker Blocks on Coaster Sleds [223]
The accompanying sketch shows a coasting sled with rocker blocks
attached on both front and rear runners. The runners and the other
parts of the sled are made in the usual way, but instead of
fastening the rear runners solid to the top board and the front
runners to turn on a solid plane fifth wheel, they are pivoted so
each pair of runners will rock when going over bumps.
The illustration will explain this construction without going into
detail and giving dimensions for a certain size, as these rocker
blocks can be attached to any coaster or toboggan sled. It will be
noticed that the top board may bend as much as it will under the
load without causing the front ends of the rear runners and the
[Illustration: Coaster Sled with Rocker Runners]
rear ends of the front runners gouging into the snow or ice.
--Contributed by W. F. Quackenbush, New York City.
** How to Make a Watch Fob [223]
[Illustration: Watch Fob]
This novelty watch fob is made from felt, using class, college or
lodge colors combined in the making with emblems or initials
colored on the texture. Two pieces of felt, each 1-1/4 in. wide
and 4-1/4 in. long, are cut V-shaped on one end of each piece
|