Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 244
held open by a spring,as shown, and is closed by admit-ting compressed air to the spaceabove the diaphragm. In connecting up the system,small concealed pipes are carriedfrom the air-reservoir to the ther-mostat, which is placed upon aninside wall of the room, and fromthere to the diaphragm valve… … Fig. 169. Thermostat of Fig. 168 inOrnamental Casing. 901 192 HEATING AND VENTILATION steam from the radiator. When the temperature falls, the thermostatacts in the opposite manner, and shuts off the air-pressure from thediaphragm valve, at the same time opening a small exhaust whichallows the air…
Architecture · Building · Carpentry
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