A highly permeable drum for the wet or dry treatment of textile material, paper or other permeable materials of a certain width consists solely of narrow sheet metal strips and narrow webs, the extension in width of which is oriented in the radial direction. The sheet metal strips extend axially parallel,...http://www.google.es/patents/US5052197?utm_source=gb-gplus-sharePatente US5052197 - Apparatus for flow-through treatment of textile material, paper or the like
Apparatus for flow-through treatment of textile material, paper or the like
