Turning bar with selectively openable air discharge openings

Details Turning bar with selectively openable air discharge openings Turning bar with selectively openable air discharge openings

1994-04-05

1996-05-28

Footland, Lenard A.

Advancing material of indeterminate length

By orbitally traveling material-engaging surface

Including details of roll or mount

226199, 226 97, B65H 2332

Patent

active

055203175

ABSTRACT:
An adjustable turning bar for a material web is provided with an adjustably positionable tube that has a plurality of compressed air discharge openings. A slide tube is disposed within the turning bar tube and is also provided with a plurality of air openings. The slide tube is shiftable axially within the turning bar tube to align selected ones of the slide tube's air openings with the appropriate compressed air discharge openings on the turning bar. Air openings not being used will be closed off.

REFERENCES:
patent: 4296773 (1981-10-01), Harshman et al.
patent: 4342335 (1982-08-01), Reinicker et al.
patent: 4453465 (1984-06-01), Heller et al.
patent: 5016801 (1991-05-01), Gilat et al.
patent: 5100117 (1992-03-01), Hajek et al.
patent: 5233919 (1993-08-01), Fecteau et al.
patent: 5273201 (1993-12-01), Hambrecht
patent: 5316199 (1994-05-01), Hansen et al.
patent: 5357859 (1994-10-01), Eckert

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