The steam engine and turbine; a text-book for engineering colleges (1911)
Heck, Robert Culbertson Hays, 1870- · New York, D. Van Nostrand company · leaf 415
Fig. 260. — The B Valve. … Fig. 261. — Piston Valve for Locomotive, with built-up style of construction:cylinder 20 by 28 in. Scale 1 to 8 and 1 to 4. 1, 3. Heads, held together by rod. 4. Bull ring or face ring* 2. Valve body. 5. Packing rings. solid and finished to a close running fit: under favorable conditions (nogrit…
Steam-engines · Steam-turbines
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