Radford's cyclopedia of construction; carpentry, building and architecture. Based on the practical experience of a large staff of experts in actual constrcution work (1909)
Johnson, Alfred Sidney, 1860-, Radford, William A., 1865- · Chicago Radford Architectural Co · leaf 163
n to allow all air andwater to escape from the radiator, closingagainst any escape of the steam. The waterand air are taken through the return to a re-ceiving tank located above the boiler, the supplyof the latter leavdng the system through avacuum valve and passing to the atmosphere, 136 HEATING… … , Fig. 107. Dunham Vacuum System of Heating. accumulates until such a quantity of water hasbeen evaporated from the boiler as will lowerthe water-line sufficiently to uncover the end ofthe equalizing tube F, which connects thiough HEATING AND VENTILATION 137 the boiler coupling E, forming a loop…
Architecture · Building
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