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 173
Straight. … Angle. Fig. 29. Spring on PopSafety Valve. Fig. .30. Fig. 30o. Hot-Water Thermometers with Separate MERcrRT Bath. The fireman or attendant should test the safety valve at least once a day by Ufting it with thehand lever provided for this purpose. Other types of safety valves, making use of (1)…
Building · Heating · Ventilation
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