The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 129
FiK. .1. the valve-face for thecylinder 15, the •i^Z^^^^^S^^Z. … c ? a Fig. 4. Fig. 5. serves as a communication between the bottom of the high-pressure cylinder B, and the top of tlie low-pressure cylinderC. These openings a, and a, are covered altern:itely by two ex-pansive plate-valves p, and C ; which valves are furnished withsuitable apparatus for varying…
Architecture · Civil engineering · Science
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