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Scientific American, Vol. 64, No. 23 (June 1891) (1891)

leaf 4

An illustration from Scientific American, Vol. 64, No. 23 (June 1891), 1891, leaf 4
ollow extension. This valve plug world. culiarity that the wires do not rest outside on the ar- extends across the casing, and has in its walls a series Visitors to the works generally show a certain amount mature iron, but are placed in openings close to the of openings and a second seat, adapted… … FIELD MAGNET OF THE GREAT DYNAMO OF THE ALUMINUM INDUSTRY CO guys, and kept from slipping by a shallow socket re- of 960 lb. The cost of pro- duction of the smooth bore sembling in form the letter L reversed. The trial, which was watched by the assistant controller of cast iron guns in those days…

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