MODERN STEAM PRACTICE . 432 the water through the tubes , flat air vessels are cast along with the end doors , by which the flow of water is rendered smoother and A … Fig . 315 . — Horizontal Arrangement of Tubes for Rettirn From the great number of Connecting - rod Engines . a , Tube chamber . B , Air pump , c , Circulating pump . such tubes required to give the necessary cooling surface , or about 2 square feet per indicated horse - power , the length reaches…
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