Model making; including workshop practice, design and construction of models, a practical treatise for the amateur and professional mechanic .. (1919)
Yates, Raymond F. (Raymond Francis), 1895- ed · New York, The Norman W. Henley Pub. Co. · leaf 220
s 217 The motion and rapidity of these convection currentsis a large factor when the efficiency of a boiler is con-sidered. The faster these currents move, the better thecirculation of the water will be, and this is to be desired.The boiler shown in Fig. 142B is the type known asthe water-tube… … ccNTtPt flue: SOLID DC/qWN COPPEEjl65 LBS. PREISSURE. DOOR. fire: B<qR3casT IRON base:Fig. 143—A single-flue boiler made of drawn copper tube the water. For this reason, boilers embodying this prin-ciple have a much greater efficiency and evaporate powerthan those of ordinary design. A boiler…
Machinery
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