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Scientific American, Vol. 87, No. 20 (1902) (1902)
leaf 8
rough tion, The driving the purifier power is obtain- made of horse- ed from a hair and_= car- 1-6 horse power bide. When, in electric motor order to extin- supplied by a guish the light, 20-volt storage the cock, R, is battery and con- closed, the gas trolled by suit- passes through able switches… … Cylinder Bearing (Reduced.) McKinley’s Portrait. © 1902 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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