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 299
eccentric revolve through the same number of■degrees in the same period of time. Hence, if we find that theeccentric moves through 120 degs., for instance, between theopening arid cloising of a port, then also the crank moves thi/ough120 degs. between the opening and closing of the port. ,… … THE VALVE DIAGRAM. 297 Now, if the steam port opened just on a dead centre, thediagram for the cut-ofF would be as in figure 106, where the line ABis drawn from the position of one dead centre to touch the lap•circle. The arc AB gives the angle described from the centre Awhen the port opens to the…
Naval architecture
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