Contactless air turn guide with baffles for running webs

Details Contactless air turn guide with baffles for running webs Contactless air turn guide with baffles for running webs

1990-12-20

1993-09-07

Gilreath, Stanley N.

Advancing material of indeterminate length

By fluid current

And web storage

226197, 34156, 34160, B65H 2014

Patent

active

052420957

ABSTRACT:
A contactless turning guide for floatingly suspending a running web in an arcuate path and comprising a housing having an arcuate surface extending in the direction of web travel, the guide also having leading and trailing edges, an air supply nozzle mounted adjacent and parallel to the leading and trailing edges and extending transversely of the path of the web over the arcuate surface, the nozzle acts to supply air over the arcuate surface, and a baffle extends from adjacent each of the edges and a direction away from the arcuate surface for increasing the velocity of waste air spilling off of the leading and trailing edges and thereby decreasing the pressure of waste air on the web outwardly from the guide.

REFERENCES:
patent: 3549070 (1970-12-01), Frost et al.
patent: 3587177 (1971-06-01), Overly et al.
patent: 3873013 (1975-03-01), Stibbe
patent: 4271601 (1981-06-01), Koponen
patent: 4300714 (1981-11-01), Dahl et al.
patent: 4472888 (1984-09-01), Spiller
patent: 4790468 (1988-12-01), Nakashima et al.
patent: 4938404 (1990-07-01), Helms et al.

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