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 882
ough thechamber A from the flue B to the flue D, which carries the hot air and gases to the chimney, or outto the open air. The pipes C arc of the form shown in the cross-section, Fig. 4083. They have around or oval form on top, and a flat bottom. At the sides, flanges reach down below the bottom… … 4082. 4083. 4084
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