Hand-Operated Motorboat Whistle
Bellows Operated by Hand for Blowing a Whistle on a Power Boat
Anyone with a power boat can construct a blower for the whistle very cheaply. The whistle is attached to a suitable length of pipe, threaded on each end. The blower is made of two white-pine boards, 1 in. thick, cut as shown at A; a thin piece of leather is cut like the pattern B, to form the bellows part, and after it is shaped, the edges of the boards are glued and the leather placed in position, where it is fastened with tacks driven in about 1 in. apart. The bellows are fastened to the under side of a seat with screws, and a tension spring is attached to the bottom of the bellows and the floor of the boat. A cord is fastened to the lower board of the bellows and run up through to the cabin roof over suitable pulleys to a handle within convenient reach of the operator.—Contributed by John I. Somers, Pleasantville, N. J.