Controlled jet injection apparatus for a papermaking machine...

Details Controlled jet injection apparatus for a papermaking machine... Controlled jet injection apparatus for a papermaking machine...

D - Textiles, Paper

21

F

D21F 1/02 (2006.01) D21F 1/00 (2006.01) D21F 9/00 (2006.01)

Patent

CA 2123399

In a parermaking machine, a method and mechanism for delivering stock to a de- watering web including a pressure headbox (10, 33) with a narrowing slice opening (21, 37), a receiving throat either with a single traveling forming wire (31) or a pair of tra- veling forming wires (11, 12), bridging the space between the headbox opening (21, 37) and the wire so that the stock jet is con- tained without a free surface, and applying a trailing flexible element (26, 35) opposite the stock in a single wire machine or against one wire in a twin wire machine with the for- ce and location of the trailing element con- trolled by a series of push rods (27, 36) ar- ranged parallel in a cross-machine direc- tion.

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