To operate the device draw on the proper cord to open and close the valve. It would be well to mark the cords with tabs so that they may be readily distinguished.—Contributed by P. D. Norton, Chicago, Ill.
Lighted Whirling Fan Used as Radiator Ornament
An ornament for the automobile-radiator cap that attracted a great deal of attention at night was made by attaching two incandescent lamps to the blades of a small propeller, which is whirled around by the wind. By using the shaft on which the wheels of a roller skate revolve, ball bearings were provided. One end of this shaft is held rigid in a block of wood.
Homemade Ornament for an Automobile Radiator Revolves with the Bulbs Lighted, Attracting Attention
The wires which lead from the propeller are run under the hood, and attached to the socket for the trouble lamp. They are taped to the rod that braces the radiator, to avoid a short circuit, and then out from under the hood at the radiator cap, and connected to the brushes A and B. The incandescent electric-light bulbs are attached to the ends of the propeller blades and connected in series. The wire is run from one side of the socket E to the collar C, and soldered to the latter. The wire from the other side of the socket is connected to the other lamp F. The other wire from this lamp socket at F is soldered to the other collar D. The brushes are made by bending a strip of copper into the shape shown in the detail, and fastening it to the wooden block by means of screw binding posts, soldered to the strips.—F. Lloyd Adams, Jersey City, N. J.
A Fifty-Cent Electric Stove
Few persons realize what an intense heat may be developed when the globe of an ordinary incandescent lamp is tightly inclosed, largely eliminating the loss of heat. When the lamp is inclosed, the temperature will increase until the rate of radiation is equal to that at which the heat is generated. A good reflector is a poor radiator, hence, when the metal wall surrounding the lamp is bright and shiny, both inside and out, the heat is reflected inward.
A Handy Electric Stove can be Made at an Outlay of 50 Cents