| 摘要 |
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.
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