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Scientific American, Vol. 46, No. 19 (1882) (1882)

leaf 4

An illustration from Scientific American, Vol. 46, No. 19 (1882), 1882, leaf 4
r watch supported on frame, X, the second hand of gine driving it was nearly at its point of maximum motion, electro-magnet) the marks spacing seconds on the paper, and pumps attached to the rods may have and do have which swings the light platinum wire, J, breaking contact some other method that… … once more fill up a considerable por- electro-magnet on the chronograph tion of the Sahara. The political to a two-cell battery. A circuit strokes in excess of or deficient to, the atrobe of engine driv- advantage to be obtained by the scheme if it succeeds will was always formed, except when the…

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