be wound up every day ; and now we shall see This alarum I had enclosed in a sort of box, the use of the small board A, Fig. 4. It is made of shaped like a small chalet (Fig. i), which showed the common wood, and furnished with two brass plates, face in front, the piece of wood at the back, Fig. 2,… … key of the movement, and make a good connection alarum into an electric alarum. To begin with, I did with it ; while the plate b, Fig. 4, serves as a fulcrum away with the key H, which served to wind up the for the spring B (Figs. 2 and 3). Fig. 5 shows the a'arum (see Fig. 2) ; I then soldered on…
Industrial arts · Handicraft
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