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 235
Fig. 51. Webster Water Seal Motor. … Webster Sylphon Thermotor. influence of an expansion bellows which contains a volatile liquid. The numerous corrugationsin this bellows allow for a large lift of the valve from the seat, thus permitting dirt that wouldlodge in most valves to pass through the port. The valve is tested and adjusted…
Building · Heating · Ventilation
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
