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 225
will not have to bend the water tubes intoany particular shape. The boiler proper can be made ofsolid drawn copper tubing with an internal diameter ofabout 2 inches. The copper boiler tubes should have a 222 Model Engineering thickness of about % inch and this will give a very highfactor of safety.… … Fig. 148—A waterback for a water-tube boiler, showing how the boilertube is riveted in place plate is screwed to the waterback casting. The wholeboiler is enclosed in a casing bent into shape from Rus-sian iron and a small funnel is riveted to the top of thecasing to carry away the fumes and gases…
Machinery
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