whichis put in the market by Messrs W. F. Lotz & Co., Barbican isabout 14 inches high and is made so that it can be attached tothe main supply, and thus every drop of water used in a houseis filtered before it is drawn off. This arrangement of the filteris very simple : inside the bottom of the… … enters the filtering medium, with which the entire apparatus isfilled, and which is of finely granulated charcoal. In reachingthe top, the water has to pass through another coil of per-forated metal, as at the bottom. Ample arrangements aremade for cleansing. As the filter is always full, by…
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-235-171.webp)
