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 530
an endless variety of these devices,of which only a few typical examples can be considered. See Chapter on Direct Steam Heat-ing, Volume I. The automatic-expansion-post type of steam air valve may be of either the solid or hollowpost construction. The former (Fig. 32) has a solid composition plug… … I
Building · Heating · Ventilation
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
