Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 667
pass through quite clearagain in a few hours: the valves S should then be lowered, the stop-cocks opened, and the operationof filtering will again proceed as above described. The cost of this filter would be about §3000, andthe quantity of pure water produced regularly every 24 hours on an average… … ployed to cleanse the materials used Bar filtering, the section. Fig. 170:>. in which S is the pipe sup-plying water to the filter D, the discharge pipe; a a,Btop cooks by which the current may be made to rss in any direction through the filtering materialwhich is supported between two…
Mechanical engineering
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