Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 208
ce, the puddling basin being replaced byan inclined bottom, made of sand thoroughly compacted. A commonform of heating furnace is shown in longitudinal section in Fig. 2463,and Fig. 2464 shows a vertical section of the same through one of theworking-doors. It will be seen that the bottom slopes in… … IZJ7T7T,■■■■■;/■ -7-777 An improved form of heating furnace, known as Howatsons, isshown in Figs. 2465 and 2466. In 1872 there were said to be about400 furnaces of this kind in use in England and Scotland. The wasteheat of the furnaces is utilized in heating the air used for the com-bustion of the…
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