INTERMITTENT-ACTION APPARATUS FOR FILTERING LIQUID

摘要

An intermittent-action apparatus for filtering liquid has a sealed casing in which a hollow cylinder is mounted so as to define with the casing an annular space communicating with a system for removing precipitate. A driven drum is provided in the upper part of the casing, and one end of a filtering hose is secured to the drum, the other end of the hose being turned inside out and secured along the perimeter to the hollow cylinder so as to define around the remaining part of the hose an annular space for liquid being filtered, the annular space varying in volume during accumulation of precipitate therein and during movement of the hose under the action of the drum.