San Francisco : Architect and Engineer, Inc · leaf 467
er front inball bearing brackets. To this shaft areconnected, by a system of levers and turn-buckles, a lever gas valve, the stack damp-er and the louvre doors of the gas burners,so synchronized that any variations insteam demands will operate the gas valve,stack damper and louvre doors of the… … OOP)—LEVER DIAPHRAGM PLATE DIAPHRAGM TOPDIAPHRAGMDIAPHRAGM BOTTOM DIAPHRAGM OF BOILER INSTALLATION A. Safety. B. Power available for successful oper-ation. C. Adjustment. D. Adaptability. The hazards encountered in the opera-tion of poorly designed damper equipmentare obvious. For this reason, the…
Architecture · Building
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