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Scientific American, Vol. 43, No. 11 (1880) (1880)
leaf 7
t about the cen- from the cylinders and -re- ter of their lengths to the versing the valves, the valve, under side of a reciprocating D, is closed and the valve in the pipe, E, is opened; the plate or frame supported on rollers, and works in a spout cylinders then act as power- or conductor fixed… … cars for that purpose; and it cylinders. An abundant sup- consists of a spear or dia- ply of compressed air is al- © 1880 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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