Journal of the Association of Engineering Societies (1881)
Association of Engineering Societies (U.S.) · New York, [etc.] Board of Managers · leaf 278
shows the screen heads on the pipes, together with the surrounding sand, over a portion of the bed. These pipes drained to collecting conduits which entered the 5-inch effluent pipe leading to the out- side. Just outside the filter there was placed a cross connection, which allowed water to pass… … Fig. 14. Jewell Filter, Screen Heads on Collecting System. Controller. This device was intended to maintain a constant head upon an orifice plate placed in the bottom by allowing such water as rose above a certain level to flow over into a cup. This cup was attached to a lever arm, the inner end of…
Engineering
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