Ripper, William, 1853-1937 · London, New York [etc.] : Longmans, Green and co. · leaf 87
thecrank when the exhaust port opens, and R5 continued across thediagram would give the position of the crank at exhaust closure; but TO STEAM-ENGINE THEORY AND PRACTICE. when the valve has inside lap, a circle is drawn from centre O withradius equal to the inside lap, cutting the secondary valve… … Fig. G8. closing respectively. At M the port is fully open to exhaust; atBy the valve has moved a distance QR- past the edge of the port, thusleaving the port wide open to exhaust till the crank reaches ON, whenthe port begins to close till Rg is reached, when compression of thesteam remaining in…
Steam-engines
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