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 524
Live Steam to Enqine To Atmosphere j Drain Safety Exhaust Outlet Valve{Set to 3 lbs. gauge) … To Atmosphere Safety Exhaust Outlet Valve(Set to1/4lb. gaugepressure)
Building · Heating · Ventilation
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
