A headbox tube bank apparatus and method of directing flow through same is disclosed for permitting the flow therethrough of stock in a papermaking machine. The apparatus includes a tube bank frame for rigidly supporting the tube bank, the frame defining a plurality of openings. A plurality of tubes...http://www.google.de/patents/US5183537?utm_source=gb-gplus-sharePatent US5183537 - Headbox tube bank apparatus and method of directing flow therethrough
