Valmet Oy

Vesa Koponen

Yngve Lindstrom

Charles Stengard

Nozzle apparatus of the over-pressure type for handling web material includes a nozzle box having a nozzle carrying surface which is curved towards the interior of the box to define a recess in the direction of web run and a pair of opposed nozzle slots located so that gas jets issuing therefrom follow the nozzle carrying surface in opposite directions with respect to each other so as to meet in the region of the curved recess to form a tranquilization zone. In this manner an air cushion is formed for the web which extends over a considerable distance in the direction of the web run to carry the web.

Nozzle apparatus for handling web material

Apparatus for drying a web, such as a paper web, including a plurality of nozzle members successively located one after the other both in and transverse to the direction of travel of the web, each of the nozzle members defining a substantially annular slit and a carrying surface associated with the slit for directing gaseous drying fluid substantially contiguous with the carrying surface in a substantially radial flow field relative to the annular slit and in a direction substantially parallel to the web.

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Turku, Finland

Vesa Koponen