Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 71
i86. SUBMERGED HEAD VERTICALBOILER, with enlarged water surface,, and a cir-culating diaphragm by which the fire head is sweptby the circulation of the water. The central spaceis free from tubes to facilitate circulation. ■^#5fN 187. HERRESHOFF BOILER.— A horizontal volute coil at thetop acts as a… … 188. THORNYCROFT BOILER.—A large steel drum above and a waterdrum below, connected with a large num-ber of bent tubes. The water return isthrough a large tube at the rear end ofthe boiler.
Mechanical movements
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