Ripper, William, 1853-1937 · London, New York [etc.] : Longmans, Green and co. · leaf 78
Fig. 53. … Fig. 54. always opens fully to exhaust when the valve is at the end of itstravel. Fig. 54. Here the piston is at the other end of its stroke, and thevalve lias opened the opposite port by an amount equal to the lead. Double-ported Slide-valve.—For large cylinders, such as the low- 62 STEAM-ENGINE…
Steam-engines
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![An illustration from Catalogue des monuments et inscriptions de l'Égypte antique / publié sous les auspices de S.A. Abbas II Helmi par la direction générale du Service des antiquités [de l'Égypte] ; par J. de Morgan, U. Bouriant, G. Legrain, G. Jéquier, A. Barsanti (1894)](https://img.insideoutlibrary.com/img/200/ia-cataloguedesmonu21egyp-160-264@90.webp)
