Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 600
five principal parts—the handle, H, the mouthpiece, 1, thediaphragm, J, the magnet, K, and the bobbin, L. The handle is bored longitudinally through the center toreceive the round bar magnet, K, and there are two smallholes at opposite sides of the magnet, through which passthe stout wires, M,… … 578 EXPERIMENTAL SCIENCE. receive the bobbin, L, and lias a moutiipiece, I, and dia-pliragm, J, wliich are of the same size as previouslydescribed. In tiie present case the mouthpiece or cap is screwed onthe handle, but it may with equal advantage be fastened bymeans of small screws, as shown in…
Physics · Lantern projection · Electric apparatus and appliances
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