Self-clearing filters

Claim 1

A FILTERING APPARATUS COMPRISING A CYLINDRICAL FLUIDTIGHT CONTAINER, A SERIES OF FILTERING ELEMENTS DISPOSED ON A CENTRAL SHAFT COAXIAL WITH THE SAID CYLINDRICAL CONTAINER, THE SAID CENTRAL SHAFT BEIN HOLLOW AND ADAPTED TO BE ROTATED BY ANY SUITABLE MEANS, THE SAID FILTERING ELEMENTS BEING CONSTITUTED BY TWO FILTERING WALLS, A SEMI-RIGID INTERNAL FRAME SUPPORTING SAID FILTERING WALLS OF EACH FILTER ELEMENT, A CENTRAL RING STRUNG ON THE SAID HOLLOW CENTRAL SHAFT AND CONNECTED TO SAID FRAME, THE SAID CENTRAL RING COMMUNCATING WITH APERTURES PROVIDED ALONG THE ENTIRE LENGTH OF THE SAID CENTRAL SHAFT, ONE OF THE TWO FILTERING WALLS HAVING A PLURALITY OF DEFLECTOR DEVICES DISPOSED ANULARLY SPACED FROM EACH OTHER OBLIQUELY IN RELATION TO THE RADII OF THE FILTERING ELEMENTS AND PROJECTING FROM THE OUTER SURFACE THEREOF, SO THAT WHEN THE HOLLOW CENTRAL SHAFT IS ROTATED, THUS DRIVING ALL THE FILTERING ELEMENTS, FOR THE CLEARING OPERATION, THE DEFLECTOR DEVICES EFFECT IN THE PORTION OF THE FILTERING ELEMENTS WHICH TURNS IN THE LIQUID ON THE ONE HAND A DEFLECTION OF THE LIQUID IN THE DIRECTION OF THE CENTRAL PORTION OF THE FILTERING ELEMENTS AND ON THE OTHER HAND A BENDING OF THE SAID FILTERING ELEMENTS IN A ZONE COMPRISED BETWEEN THE BOTTOM END OF THE DEFLECTORS AND THE CENTRAL RING OF THE SAID FILTERING ELEMENTS.