Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 243
water underpressure takes the place of steam. A piston in the upper cvlindercompresses the air, which is stored in a reservoir provided for thepurpose, ^\h.en the pressure in the reservoir drops below a certain 199 190 HEATING AND VENTILATION point, the compressor is started automatically, and… … Fig. IfiT. Air-Compressor Operated by Wa-ter-Pressure, Automatically routi-olled.and Operating to Regulate Temperatureby Controlling Radiator Valves. Fig. 168. Thermostat Controlling Valveson Radiators, and Ojjerating through Ex-pansion or Contraction of Metal Stiip E. ture of the air in which it…
Architecture · Building · Carpentry
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