Modern buildings : their planning, construction and equipment (1905)
Middleton, G. A. T. (George Alexander Thomas) · London : Caxton Publishing Company, Limited · leaf 159
e frequent, with the temperature a tube does not serve any purpose as a tube, but is a little higher, and the allowance is then either 70 or form of damper that operates with more certainty, 100 cubic feet to each foot of pipe, according- to and is more easily fitted, than a fiat plate. Scarcely… … Fig. 81. operation. The ends of the twin ducts, where they by the weighted cord which appears in the room terminate in the single-delivery duct, are fitted with a section of tube — a cylinder to act as a damper. The above.
Building · Architecture
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