Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 821
The foul air is drawn off by means of tlie foul-air flues V V placed in the sides of the rooms, oppositeto the entrance for -^arm air; they open close to the floor, thus producing a downward ventilation.Through these it is conducted to the main foul-air flue K K, Figs. 3733 and 3734; from thence…
Mechanical engineering · Mechanics · Engineering
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