nch by matter under two dis- i inch to a hardwood block, secure it on the under- tinct heads : first, the side of the outside wood case without a hardwood Electric Alarum Clock; block. Now as to the second wire, one end of which second, the Clock, is fast to the metal work of the clock. If the case… … length. Screw the brass spring to the wood block, 3. — REVOLVING DISC ON venient to have it on a FIG BRACKET. and connect the insulated copper wire to it, then ar- landing where every range the free end of the spring immediately at the one can see the time, and a wall bracket fixed to the back of…
Industrial arts · Handicraft
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.