Hutton, Frederick Remsen, 1853- [from old catalog] · New York, J. Wiley & sons; [etc., etc.] · leaf 238
Fig. 167. Fig. 168. against a surface, adjustable or fixed, which shall serve tokeep pressure away from the outside of the hollow valve onthe side corresponding and opposite to its seat, or a schemeis used in which the pressure is balanced around it (Fig. 169).These types run naturally into the…
Mechanical engineering · Steam power plants
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