Means to vary effective width of projected coating material

Claim 1

IN A WEB COATING APPARATUS, THE COMBINATION COMPRISING A BACKUP ROLL FOR A TRAVELING WEB TO BE COATED; A COUNTER-ROTATING METERING ROLL DISPOSED BENEATH SAID BACKUP ROLL AND IN CONTACT RELATIONSHIP WITH A COATED PORTION OF SAID WEB ENTRAINED ABOUT SAID BACKUP ROLL; A COATING MATERIAL SUPPLY NOZZLE HAVING A SLOTTED OUTLET TO FIXED WIDTH WHICH IS SUBSTANTIALLY COEXTENSIVE WITH THE NIP FORMED BY SAID ROLLS; SAID NOZZLE DISPOSED WITH RESPECT TO SAID NIP WHEREBY TO PROJECT A SHEET OF COATING MATERIAL INTO SAID NIP AND ONTO THE PORTION OF THE TRAVELING WEB THEREAT; A COATING MATERIAL SUPPLY RESERVOIR DISPOSED BENEATH SAID METERING ROLL; COATING MATERIAL FEED MEANS COMMUNICATING SAID RESERVOIR WITH THE NOZZLE; TROUGHSHAPED MEANS MOUNTED ON EACH TRANSVERSE AND OF SAID NOZZLE AND HAVING SECTIONS THEREOF SPACED FROM THE NOZZLE OUTLET AND DISPOSED IN THE PATH OF THE SHEET OF COATING MATERIAL PROJECTED FROM THE FIXED SLOT OUTLET WHEREBY TO INTERCEPT PORTIONS OF SUCH PROJECTED SHEET; SAID TROUGHSHAPED MEANS FURTHER DISPOSED SO THAT THE INTERCEPTED PORTIONS OF COATING MATERIAL ARE RETURNED TO THE RESERVOIR; SAID TROUGH-SHAPED MEANS BEING LATERALLY ADJUSTABLY MOUNTED ON SAID NOZZLE ENDS WHEREBY TO EFFECT VARIATION OF THE WIDTH OF SAID SHEET OF COATING MATERIAL PROJECTED AND DELIVERED INTO SAID NIP AND ONTO THE TRAVELING WEB PORTION THREAT.