Evening Republican, Volume 17, Number 292, Rensselaer, Jasper County, 8 December 1913 — HERE IS A THRILLER [ARTICLE+ILLUSTRATION]

HERE IS A THRILLER

How to Give an Electric Shook White Shaking Hands. To receive an electric shock while shaking hands la quite a mystery to your friends. This may be accomplished with the aid of a small induction coll that can be constructed at home. The core, A, Fig. 1, is constructed in the usual manner with small soft iron wire to make a bundle about three-sixteenths of an inch in diameter and r about two Inches long. The coil ends are made from cardboard about one inch in diameter with three-slxteenths-inch hole in the center. When cutting the hole, cut it as shown in Fig. 2, so as to leave four small pieces that can be bent out, leaving the projections as shown. After wrapping three or four turns of paper around the bundle of wires the cardboard ends are put on with the projections inside, so the coils of wire will hold them in place. About 70 turns of No. 24 double-covered magnet wire is first placed on the core for the primary and then 1,500 turns of No. 32 or 34 double-covered wire is wrapped on top of the primary for the secondary. Sufficient length of wire must be left outside from each end of the vibrator directly opposite tions. The vibrator, B, Fig. 1, and the support, C, are made from thin spring steel about one-eighth inch wide, bent as shown and securely fastened to the cardboard end of the coil. The armature is made from a soft piece of iron about three-slxteenths-inch in diameter and three-sixteenths-inch thick, which is soldered to the end of the vibrator directly oposite the end of the core. A small screw is fitted in the end of the support, C, for adjustment, which should be tipped with platinum placed where the screw will toiich the vibiator, B.

One of the primary wires is connected to a flash lamp battery, D. The other primary wire is connected to a switch, S, which iu turn is connected to the other terminal of the battery. The switch, S, may be made from a three-eighths-lnch cork with the wires put through about three-slxteenths-inch apart and allow them to project about one-half inch. The plate E is cut about one-half inch square a piece of copper and is

fastened to the heel of one shoe and connected with a wire from the secondary coil which must be concealed Inside of the trouser leg. The other secondary wire is connected through the coat sleeve to a finger ring, F. The vibrator screw must be properly adjusted. When the vibrator is not working the armature should be about one-sixteenth-inch from the core and directly opposite. The coil when complete, says Popular Mechanics, will be about 2 % Inches long and one inch in diameter. The coll can be placed in an old box that has been used for talcum powder or shaving stick. The space around the coll in the box can be filled with paper, to keep it tight. The coil and uattery are carried in the pockets and the cork button put in the outside coat pocket, where it can be pressed without attracting attention.

Details of Induction Coll.