A Bottle-Cap Lifter
To remove the crimped bottle cover so extensively used requires a special lifter, the corkscrew being of little use for this purpose. When a cap-cover remover is not at hand, prepare a pocketknife in the manner shown, and it makes an excellent substitute. It only requires a small notch filed in the heel of the blade, which does not interfere with the ordinary use of the knife in the least.—Contributed by John V. Loeffler, Evansville, Indiana.
Ants may be effectively destroyed by placing a coop with a chicken in it over the hill.
A Mechanical Bicycle Horn
The body of the horn A is made of metal, about 3 in. in diameter, with a screw cover. The shaft B, to which is attached a driving pulley, C, and a ratchet wheel, D, is fitted in holes drilled through the diameter of the body. The diaphragm E is clamped, between the edge of the body and the cover, on a seat made of rubber rings, F, and carries a contact device, G, that is riveted to its center. The diaphragm should be set so that the contact will touch the ends of the ratchets.
The Horn is Sounded by Making Connections with the Moving Surface of the Tire
A metal cone is fastened in an opening cut in the center of the cover, over the diaphragm. The back of the body is fitted with a bracket for attaching it to the front fork on a bicycle. The lever H carries an idler pulley which is forced against the bicycle tire and the pulley C by means of a cord, J.