Splice for Round Belts

Sash cords or round belts are easily spliced with a coil spring, and for belts this joint will run smooth and noiseless. The coil should be a close fit on the belt, and after turning one end halfway into the spring, the belt itself is twisted in the reverse direction as many times as there are coils remaining in the spring, before the other end is turned into it to meet the first.—Contributed by F. S. Cummings, Detroit, Michigan.

A Coil Spring Used for Splicing Sash Cords or Small Round Belts

When painting wireless instruments use black asphaltum, as it has high insulating qualities.

The Main Ambition of a Boy Mechanic is to Own a Lathe