Apparatus for making a fibrous web comprises a plurality of carding drums (3, 4, 5, 6), which closely succeed each other in the direction of travel of the feed web and rotate in the same sense. An air-permeable collecting surface is provided, on which the fibers of the feed web are deposited which fly...http://www.google.es/patents/US4583267?utm_source=gb-gplus-sharePatente US4583267 - Apparatus for making a fibrous web
