The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 42
THE CIVIL ENGINEER AND ARCHITECTS JOURNAL. 29 a: . , \± s … pinion at d, and if a vacuum be formed by pumping out, or exhausting theair from the front of the piston in the usual and well known manner by airpumps worked Iiy steam engines or otherwise, the pressure of the naturalatmosplierc will urge tlii« piston onwards towards the vacuum, if permittedto do…
Architecture · Civil engineering · Science
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