Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 180
Pig. 117. Back-Pressure Valve Automatic-ally Opt rated by a Spriug. Pig. 118. Centrifugal Exhaust Head. is usually the case, the receiver may be raised to a height suflScientto give the required elevation and the returns connected near thebottom below the water-line. A balance-pipe, so called,…
Architecture · Building · Carpentry
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