B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
271/55
B65H 23/24 (2006.01) B65H 23/32 (2006.01)
Patent
CA 1137528
CONTACTLESS WEB TURNING GUIDE Abstract of the Disclosure A contactless web turning guide comprises a guide member that extends across the web and curves arcuately along a direction in which the web moves. The web floats in proximity to the convex surface of the guide member on a film of air confined by means of elongated air nozzles around its periphery. A pair of elongated edge-jet outlets extends along each edge of the web, parallel to the web edges, from one to the other of said nozzles. One edge-jet outlet of each pair is spaced a small distance outwardly from its adjacent web edge, the other a small distance inwardly from that edge, and the two edge-jet outlets of each pair discharge air along said surface in the direction across the width of the web towards the other pair of edge-jet outlets. Such edge-jet outlets conserve energy required for pressure air generation while affording more stable web travel.
370520
Megtec Systems Inc.
Smart & Biggar
LandOfFree
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