Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 671
ictures, nothing can excel a pantograph adapted to thelantern. Two forms are here shown, both of which pro-duce figures on the prepared glass without exhibiting thearm bj which the work is done. The instrument shown in Fig. 625 is, perhaps, hardly de-serving of the name given to it, as it is not… … jjo./i/n. Simple Tracer for the Lantern. the operator watches the progress of his work as it is pro-jected upon the screen. The baseboard is provided with a square central open-ing, having around it a rabbet for receiving the preparedglass. This board is adapted to the lantern, and furnishedwith a…
Physics · Lantern projection · Electric apparatus and appliances
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