Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 203
ers used inconnection with forced blast varies greatly, depending upon thetemperature of the entering air, its velocity between the pipes, thetemperature to which it is raised, and the steam pressure carried inthe heater. The general method in which the heater is made up isalso an important factor.… … A/R valve: ^ PLAN AT SUPPLY e/VO FRONT V/EW S/D£ V/EW
Architecture · Building · Carpentry
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