Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in constructive and operative machinery and the mechanical arts, being practically a mechanical dictionary, commencing with a rudimentary description of the early known mechanical powers and detailing the various motions, appliances and inventions used in the mechanical arts to the present time, including a chapter on straight line movements, by Gardner D. Hiscox (1914)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 209
742. ELECTRIC HEATER.—Coils of German silver wirewound around asbestos cords and rove over porcelain buttons forinsulation. The buttons may be fastened to a frame of any requiredform. <1ZI[>=^X 743. ELECTRIC SOL-DERING COPPER.— The copper is wound witha coil of resisting material; platinum… … 744. ELECTRIC SAD IRON.—The ironis a shell frame with a smooth face on thebottom. A resistance coil made of iron,German silver, or platinum, insulated with as-bestos, is wound in spirals as near the bot-tom plate as can be made available for thegreatest amount of heat.
Mechanical movements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.