Mechanical and marine engineering science ... Specially written as a handbook to the Board of Trade examinations for extra-first-class engineers (1909)
Somerscales, A. N · Glasgow : J. Munro; London, Simpkin, Marshall, Hamilton, Kent · leaf 312
. When the crossing of the lines is reached at about 8^ tenths- ■EFFECTIVE PRESSURES. 309 •of the stroke, the effective pressure is nil, and at 9 tenths the resist-ance to the piston is a^c^, which is set off as A9C9 beloia the baseline, the same with ffjo^io — -^lo^io which shows the cushion… … ytea-n effetti(;e bresA 330WYI iiro\t,-.%b%Uff Atrelvc - j5-» Fig. ti4. The use of these curves is that a correct estimate can then bemade of the work done during each stroke of the piston. In thepresent case, for instance, the area enclosed between the curve andthe base line (when the part below…
Naval architecture
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