Filtration apparatus utilizing unrollable filter medium

Claim 1

APPARATUS ADAPTED TO FILTER FLUID MEDIUM COMPRISING A PRESSURIZABLE CHAMBER HAVING AN INLET FOR SUPPLY OF THE FLUID MEDIUM AND AN OUTLET FOR DISCHARGE OF FILTERED FLUID MEDIUM, AT LEAST ONE PAIR OF OPPOSITELY WOUND ROLLS OF FILTER MATERIAL IN THE CHAMBER, MEANS FOR CONNECTING THE OUTSIDE TURN OF EACH ROL TO A ROTATABLE TAKE-UP SPOOL, SPACED FROM SAID ROLLS, IN SUCH A MANNER THAT THE OUTER SURFACES OF THE TURNS OF FILTER MATERIAL WILL BE IN PREDETERMINED PROXIMITY TO EACH OTHER, IN TRANSVERSING THE REACHES BETWEEN THE FILTER ROLLS AND THE TAKE-UP SPOOL, AT LEAST ADJACENT THE SPOOL, WHEREBY ROTATION OF SAID TAKE-UP SPOOL WILL CAUSE ROTATION OF SAID FILTER OLLS TO WIND THE OUTSIDE TURNS OF EACH OF SAID ROLLS ON SAID TAKE-UP SPOOL IN SUCH A MANNER THAT THE FACING FILTER CAKES ACCUMULATED ON SAID OUTER SURFACES OF ADJACENT OPPOSITELY WOUND ROLLS WILL CONTACT IN TRAVERSING THE REACHES BETWEEN THE FILTER ROLLS AND THE TAKE-UP SPOOL AND THEREBY CONFINE THE FACING FILTER CAKES BETWEEN SAID TRAVERSING OUTSIDE TURNS TO MINIMIZE LOSS OF THE FILTER CAKES FROM SAID ROLLS, A PLURALITY OF INLETS FOR SUPPLY OF THE FLUID MEDIUM TO THE CHAMBER, EACH OF SAID INLETS BEING POSITIONED FOR SUPPLY OF THE FLUID MEDIUM AT A LOCTION ADJACENT THE SPACING BETWEEN A PRESELECTED PAIR OF ADJACENT ROLLS AND AWAY FROM THE SIDES OF THE PRESELECTED PAIR OF FILTER ROLLS FROM WHICH THE OUTSIDE TURNS OF SAID MATERIAL ARE UNWOUND, AND BAFFLE MEANS ADJACENT EACH OF SAID INLETS FOR DIRECTING THE FLOW OF FLUID MEDIUM INTO THE CHAMBER FROM THE CORRESPONDING INLET TO DISTRIBUTE THE FLUID AND TO PREVENT DIRECT ACTION OF CURRENT FORCES OF THE INCOMING FLUID MEDIUM ON EITHER OF SAID PRESELECTED PAIR OF SAID FILTER ROLLS AND ON THE TURNS OF FILTER MATERIAL SPANNING THE REACHES BETWEEN THE FILTER ROLLS AND THE TAKE-UP SPOOL.