Headbox

Details Headbox Headbox

D - Textiles, Paper

21

F

92/17.5

D21F 1/06 (2006.01) D21F 1/02 (2006.01) D21F 11/00 (2006.01)

Patent

CA 1104400

ABSTRACT OF THE DISCLOSURE A headbox for supplying a stock consisting of a generated liquid foam suspension of fibers or a high consistency paper making stock including a slice nozzle having a slice opening and a slice chamber having first and second slice flow passages arranged of a set of stepped surfaces leading to the slice nozzle with one set of the surfaces of the slice chamber mounted on a movable block to increase or decrease the size of the passages of the slice chamber, said stepped surfaces shaped to generate a turbulent expansion and shearing action on the foam for a regen- erative process, and a tube bank and header chamber delivering foam to the slice chamber passages. -i-

316064

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