Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 216
Fig. 05. Adjustable Dio and Stock. valves, as a rule, have no air-line connections, but discharge their airinto the rooms; a .somewhat objectionable feature. They close whensteam enters them; and if water rinds its way in, the float is raised andcloses the outlet. Air-valves for direct radiatv^… … Fig. 66. Hand Power Pipe Machine. Fig. 67. Belt Power Pipe Machine. discharge of air, scarcely larger than a pin-hole; and while these dovery well for small units, they are not satisfactory^ for large coils or for 180 STEAM AND HOT WATER FITTING 47 large groups of indirect radiators, because of the…
Architecture · Building · Carpentry
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