Armature Cores are Easily Revolved to Fill the Core Openings with Insulated Wire
Footstool for Cement Floors
A clerk finding the cement floor of the office uncomfortably cold to the feet, devised a footstool in the following manner: A shallow box was procured, and four small truck casters were fastened to the bottom. A piece of carpet was laid on the inside of the bottom and some old newspapers placed on top of it. When seated at the desk, he placed his feet inside the box on the papers. The casters elevated the box from the cement, just high enough to avoid dampness and cold, and permitted an easy change of position.—Contributed by L. Alberta Norrell, Gainesville, Ga.
Homemade Telegraph Sounder
The material required to construct a telegraph sounder, like the one shown in the sketch, consists of two binding posts, magnets, a piece of sheet metal, and a rubber band. These are arranged as shown, on a wood base or, better still, on a metal box. In using a metal-box base, be sure to insulate the connections at the magnet coils and binding posts.
An Inexpensive and Homemade Sounder for Use in Learning the Telegraph Codes