FILTRATION (CLASSIC REPRINT)

Excerpt from FiltrationThis stone turns out to have been formed by nature of microscopic fibres, many times finer than silk, cotton or wool and having a much greater textile strength.The Romans of old knew how to weave it, and used it to save the ashes of their burnt dead, as is now done in modern crematories.The art of weaving asbestos had been lost during many centuries. It has been recovered in our own day, and the late Mr. H. W. Johns, of New York, was perhaps the very first modern manufacturer to weave asbestos cloth.We have now a perfect felted asbestos cloth, which we use in our domestic filters, in public drinking fountains and in public water purifying plants.Figure 1 shows one of our improved complete asbestos filtering organs. Figure 2 represents the core or inner part of the said filtering organ. The fluffy nature of the felted asbestos cloth is here very apparent, and it is easy to understand how the filtration may be rapid and perfect at the same time. The water passes from the exterior to the exterior of the asbestos felted cloth. The suspended impurities are retained on the outer surface and are easily washed off.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works._,