Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 209
740. ARC LIGHT AND REGULATING GEAR Faucault model. The upper carbon runs downby a rack and gear governed by a fly, which isstopped or let go by variations in the current 741. LUMINOUS FOUNTAIN.—The lower end of the jet nozzle is fitted with a strong disc of plateglass. A concave mirror, placed in… … 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. 743. ELECTRIC SOL-DERING COPPER.— The copper is wound with ^Im r ■^^ a coil of resisting material; platinum wire…
Mechanical movements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
