F - Mech Eng,Light,Heat,Weapons – 26 – B
Patent
F - Mech Eng,Light,Heat,Weapons
26
B
34/22, 34/23
F26B 13/00 (2006.01) D21F 5/04 (2006.01)
Patent
CA 2024398
In the drying section of a paper machine having a first cylinder, a second cylinder and a support fabric supporting web to be dried, the fabric along with the web being passed from the first cylinder to the second cylinder, a device is provided at the height of the free run portion of the web and the support fabric between the cylinders on the side of the support fabric and comprises a chamber connected to a source of pressurized medium and a nozzle slot provided in the wall of the chamber for effecting a flow having an influence on positive and negative pressures induced in wedge-like spaces formed between the cylinders and the web with the support fabric for stabilizing the run of the web. The nozzle slot is directed at an angle with respect to the free run of the web and away from the web and the support fabric towards an area, which is outside the wedge-like space defined by the circumferential surface of the cylinder and the free run. The device further includes an injector operatively connected with the nozzle slot. The ejector is adapted for ejecting air from a free space situated between the free run and the ejector. The ejecting of the air is induced by the flow path of the nozzle slot adjacent to the flow path of the ejector.
Borden Ladner Gervais Llp
Valmet Paper Machinery Inc.
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