Apparatus for forming a multilayer jet of paper making stock
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United States of America Patent
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May 1, 1984
Issued Date -
N/A
app pub date -
May 22, 1981
filing date -
Apr 25, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Multilayer headbox apparatus for a papermaking machine comprises spaced apart headbox walls defining an elongated, converging channel terminating in an exit opening, and at least one partition member anchored in the headbox at its upstream end with its downstream end free, said partition member extending from side to side in the headbox and at least to the vicinity of said opening and dividing the headbox into a plurality of shallow, converging channels extending to said opening for conveying a plurality of paper making stocks thereto and for discharging a plurality of paper making stocks therefrom in stacked, spaced apart relation, together with means for maintaining a wedge-shaped body of gaseous fluid between said discharged jets at the downstream end of said partition member to keep the jets separated for a predetermined distance beyond said exit opening in the direction of a forming surface.
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