Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 214
ded by Pit under Floor-Level. 172 heatinct and ventilation 163 Fans are made botli witli double and with single inlets, theformer beinjj; called hloivers and the latter exhausters. The size ofa fan is commonly expressed in inches, which means the approximateheight of the casino; of a full-housed… … Fig. U6. Cone Fan. Discharges through Opening in Wall into a Plenum Chamber Connecting with Distributing Ducts. Theory of Centrifugal Fans. The action of a fan is affectedto such an extent by the various conditions under which it operates,that it is impossible to give fixed rules for determining…
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