Device for coating and impregnating flexible sheets

Claim 1

A DEVICE FOR CONTINUOUSLY IMPREGNATING AND COATING BOTH SIDES OF EACH OF A PLURALITY OF REINFORCING STRIPS MOVED AT A SUBSTANTIALLY CONSTANT SPEED, COMPRISING A PLURALITY OF PAIRS OF PLATES, EACH PAIR SPACED TO DELIMIT A THIN PASSAGE THEREBETWEEN THROUGH WHICH ONE OF SAID STRIPS IS MOVED, SAID PLATES BEING FIXED AT OPPOSITE SIDES TO SUPPORTING MEMBERS WHICH CLOSE SAID THIN PASSAGES AT THE SIDES OF THE MOVING STRIPS, EACH OF SAID PLATES HAVING A RESIN SUPPLY CHANNEL TRANSVERSE TO THE DIRECTION OF MOVEMENT OF SAID STRIP AND A SERIES OF DSTRIBUTING HOLES COMMUNICATING SAID RESIN SUPPLY CHANNEL WITH ONE OF SAID THIN PASSAGES FOR COATING THE OPPOSITE SIDES OF STRIPS MOVING THROUGH THE PASSAGES, EACH OF SAID PLATES BEING PROVIDED WITH A VACUUM CHAMBER UPSTREAM OF SID RESIN SUPPLY CHANNEL FOR APPLICATION OF VACUUM TO AN ADJACENT PASSAGE TO CAUSE IMPREGNATION OF A STRIP MOVING THEREIN, AND SEALING MEANS AT THE ENTRY END OF EACH OF SAID THIN PASSAGES UPSTREAM OF SAID VACUUM CHAMBERS FOR COOPERATING WITH ENTERING STRIPS TO PREVENT AIR LEAKAGE INTO THE PASSAGES, SAID PAIRS OF PLATES BEING CARRIED BY SAID SUPPORTING MEMBERS IN INCLINED RELATIONSHIP SO THAT SAID THIN PASSAGES CONVERGE TOWARD A COMMON LINE, AND CALENDERING MEANS CARRIED BY SAID SUPPORTING MEMBERS AND LOCATED ALONG SAID LINE TO WHICH SAID PASSAGE CONVERGE, WHEREBY A PLURALITY OF STRIPS RESPECTIVELY ISSUING FROM EACH THIN PASSAGE ARE ASSEMBLED TOGETHER AND SIMULTANEOUSLY CALENDERED.