Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 868
ting coil of the ordinary siphon recorder is made tochange the position of a light screen, which, moving before two small slits, admits light toand shuts it off from two selenium cells, which then act in the manner described below. The accompanying illustrations show the details of the apparatus.… … Fui. 1 Fig. 3. Sulenium cable recorder. can be removed to any desirable yjlace, and the recording apparatus proper need only be inthe operating room. The second compartment contains a bright source of light, such as anincandescent lamp, F, Fig. 3. The dividing wall between the two, W, has two…
Mechanical engineering
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