Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 821
McGregor** hot-air furnace.—Fig. 3726 is a front view of largest furnace set in mason-work. 1, feeddoor; 2, fire-chamber; 3, 4, and 5, hot-air pipes; G, ash-pit door; 7, cold-air box; 8, cylinder chamberfor generating hot air. Fig. 3727 exhibits an internal view of the structure of the furnace. A C…
Mechanical engineering
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