The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 373
hat both the valves and boxes are faced on both sides; C 1, C 2,communication pipes to each pair of boxes ; D D, branch pipes fromC 2, C 1, to the apertures in the slide valve box E; being alternatelysteam and exhaust as their respective apertures may be covered bythe slide valve F; G is the… … It will be seen as the valves stand in the figures that the steampassing down H into the valve box E, and down the uncovered aper-tures to communicating pipeC 1, finds the upper aperture stopped up,it consequently makes its way through the lower one and forces up thepiston, at the same time the…
Architecture · Civil engineering · Science
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