A history of the growth of the steam-engine (1878)
Thurston, Robert Henry, 1839-1903 · New York, D. Appleton · leaf 429
-tubular boiler excels in convenience of access for pluggingup leaking tubes, and is much less costly than the water-tubular. The water-tube class of boilers still remain inextensive use in the United States naval steamers. Theyhave never been much used in the merchant service, al-though introduced… … Fig. 148.—Marine High-Pressure Boiler. Section. reassuming prominence by their introduction in the modi-fied form of sectional boilers. Marine boilers are now usually given the form shown insection in Fig. 143. This form of boiler is adopted where MARINE ENGINES. 405 steam-pressures of 60 pounds…
Steam-engines
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