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. 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
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