Filtering apparatus

Claim 1

FILTERING APPARATUS FOR REMOVING UNDERSIRED SOLIDS FROM A FLOWING STREAM OF FILTERABLE LIQUID COMPRISING A FRAME MEANS; A SCREENING MEANS SECURED TO AND SUPPORTED BY SAID FRAME MEANS, SAID SCREENING MEANS COMPRISING A SCREEN PORTION SUPPORTABLY POSITIONED IN SAID FLOWING STREAM BY SAID FRAME MEANS AND DEFINING AN UPSTREAM FACE CONFRONTING SAID FLOWING STREAM FOR INTERCEPTING AND REMOVING SOLIDS THEREFROM, SAID SCREEN PORTION EXTENDING FROM THE BOTTOM OF SAID STREAM UPWARDLY TO AN UPPER EDGE ABOVE SAID FLOWING STREAM, AND A SOLIDS RECEIVING PORTION ADJACENT SAID UPPER EDGE INCLUDING A REARWARDLY EXTENDING SEGMENT DEFINING A SURFACE WHICH IS AT AN ANGLE TO SAID UPSTREAM FACE OF SAID SCREEN PORTION, SAID REARWARDLY EXTENDING SEGMENT TREMINATING IN AN EDGE DOWNSTREAM OF SAID SCREEN PORTION AND ABOVE THE SURFACE OF SAID FLOWING STREAM; SCREEN CLEARING MEANS FOR ENGAGING SAID SCREENING MEANS AND SAID SOLIDS RECEIVING PORTION, RECIPROCATING MEANS FOR SUPPORTABLY POSITIONING AND MOVING SAID SCREEN CLEARING MEANS ALONG AND AGAINST SAID UPSTREAM FACE AND SAID SOLIDS RECEIVING PORTION FROM THE BOTTOM OF SAID STREAM TO THE DOWNSTREAM EDGE OF SAID SOLIDS RECEIVING PORTION OF SAID SCREENING MEANS FOR COLLECTING SOLIDS INTERCEPTED BY SAID SCREENING MEANS, SAID RECIPROCATING MEANS COMPRISING AN UPPER LINK MEANS AND A LOWER LINK MEANS PIVOTALLY INTERCONNECTED AT ONE END OF EACH LINK MEANS, PIVOTING MEANS FIXEDLY POSITIONED ADJACENT SAID SOLIDS RECEIVING PORTION OF SAID SCREENING MEANS FOR PIVOTALLY SUPPORTING THE END OF SAID UPPER LINK MEANS REMOTE FROM SAID LOWER LINK MEANS, MEANS CONNECTING SAID SCREEN CLEARING MEANS TO THE END OF SAID LOWER LINK MEANS REMOTE FROM SAID UPPER LINK MEANS, DRIVE MEANS FOR OSCILLATING SAID UPPER LINK MEANS ABOUT SAID PIVOTING MEANS FROM A FIRST POSITION TOWARD SAID UPSTREAM FACE OF SAID SCREENING MEANS, WHEREAT SAID SCREEN CLEARING MEANS IS POSITIONED ADJACENT THE BOTTOM OF SAID STREAM TO A SECOND POSITION AWAY FROM SAID UPSTREAM FACE, WHEREAT SAID SCREEN CLEARING MEANS IS POSITIONED ADJACENT THE DOWNSTREAM EDGE OF SAID SOLIDS RECEIVING PORTION OF SAID SCREENING MEANS, SAID REMOTE ENDS OF SAID UPPER AND LOWER LINK MEANS BEING DRAWN TOWARD ONE ANOTHER AS SAID UPPER LINK MEANS IS MOVED FROM SAID FIRST POSITION TO SAID SECOND POSITION.