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Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)

Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 205

An illustration from Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary, 1917, leaf 205
742. ELECTRIC HEATER.-~Coik of German silver wirewound around asbestos cords and rove over porcelain buttons forinsulation. The buttons may be fastened to a frame of any requiredform. 743. ELECTRIC SOL-™™^^ DERING COPPER.—The copper is wound witha coil of resisting material; platinum wire insulated… … 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

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