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Scientific American, Vol. 60, No. 9 (March 1889) (1889)

leaf 4

An illustration from Scientific American, Vol. 60, No. 9 (March 1889), 1889, leaf 4
rcular arm the lever to which the trip lever is secured, when the and the initial velocity 3,000 meters, while the distance being pivoted on the pawl, which passes through rope runs horizontally, as in case of its use on railroad of the cannons' ranges is said to be 20 versts, or over 13 another… … AEEBS & LINDSEY'S CAB-STABTEB. yet known is derived from the OLSEN'S SIGNAL BELL FOB MINES, ETC' © 1889 SCIENTIFIC AMERICAN, INC.

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