Mechanical equipment of buildings; a reference book for engineers and architects (1916)
Harding, Louis Allen, Willard, Arthur C. (Arthur Cutts), 1878-1960 · New York Wiley · leaf 531
n. 27-inch and 30-inch are made double thick. The 4-roll frames have rolls approximately 20 per cent, heavier than the 2-roll frames. To determine the amount of insulating material required, consider each run of condiutseparately. From the internal area of the conduit as given in the Ust, deduct… … % Iron Rod vJth hoc!<on each end. Iron Pod, I 5/2 Lorn r/4 Plf-e, I 4 Long i:i-^
Building · Heating · Ventilation
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
