Tunzelmann, George William von, 1856- · New York, Scribner & Welford · leaf 227
bonsare manipulated by hand instead of by an automaticarrangement. Fig. 67 illustrates a simple form of hand-feed lamp, manufactured by Messrs. Ernest Scott & Co.,of Newcastle, and designed for search-lights, or for usewith microscopes or magic lanterns. For use as search-lights these hand-feed… … Fig. 67.thrown in any direction required. A simple form of pro-jector, as an apparatus of this kind is called, manufacturedby Messrs. Scott, is shown in Fig. 68. ELECTRIC LIGHTING. 211 i.T.i?.*. f» POS » - co,side«bIe exttn. a, «..».u o„ b»,. .^, P..»,„ s..;;:-?;-ri:
Electric industries · Electricity
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