A treatise on architecture and building construction (1899)
International Correspondence Schools · Scranton, The Colliery engineer co. · leaf 360
ing it wet enough to m.ake the dust adhere wherever ittouches. The net gradually becomes loaded with dirt,which requires to be washed off. This may be done auto-matically by means of an ordinary periodical flushing tank,arranged to empty a liberal supply of water over the screen. 365. A dry screen… … Fig. 87. more; and their purpose is to support other screens made ofcheese cloth or light muslin. They are fixed in place, anddo not need to be removed for cleaning. The cloth filters are made in the form of V-shaped bags,as shown at d. They are secured in place by fastening thefront edges to the…
Architecture · Building
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