Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 184
144 HEATING AND YEXTILATIOX 135 case a piston is operated by the water-pressure, instead of a diaphra_^m.In both types the pressures at which the damper shall open and closeare regulated by suitable adjustments of the weights upon the levers.Pipe Connections. The method of making the pipe… … Fig. Ii4. Return Trap with Steam Vulve Operated by Bucket or Float Inside. the general principles to be followed, and by suitable changes may beused as a guide in the design of ne\* systems. Steam first passes from the boilers into a large drum or header.From this, a main, provided with a shut-off…
Architecture · Building · Carpentry
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