Angle bar air regulating device for turning a web
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United States of America Patent
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-
Aug 10, 1993
Grant Date -
N/A
app pub date -
Jun 18, 1992
filing date -
Jun 18, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an angle bar turning a web having an exterior pipe formed with outlet openings, an air regulating device includes a zone tube disposed within and radially spaced from the exterior pipe so as to define an annular space therebetween, structure for dividing the annular space into a plurality of mutually isolated zones in longitudinal direction of the exterior pipe, the zone tube having at least one air outlet opening formed therein in each of the zones for coordination with the outlet openings formed in the exterior pipe, and an air controller tube disposed within the zone tube and being formed in circumferential direction thereof with at least two zonal combinations of outlet openings differing from one another, the air controller tube being turnable about the longitudinal axis thereof within the zone tube.
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