Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 126
hird floor has 50 pupils, who areto be furnished with 30 cubic feet of air per minute each. What willbe the required areas in square feet of the supply and vent flues? Axs. Supply, 3:7 +. Vent, 6.8 +. 2. What size of heater will be required in a vent flue 40 feethigh and with an area of 5 square… … Fig. 70. Section through a Floor Register. Floor registers Registers. Registers are made of cast iron and bronze, in agreat variety of sizes and patterns. The almost universal finish forcast-iron registers is black Japan; but they are also finished incolors and electroplated withcopper and nickel.…
Architecture · Building · Carpentry
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