Rods for use in the manufacture of smoking products are provided using a rod-making apparatus. The apparatus includes (a) an unwind unit for continuously supplying a material having a continuous integrity; (b) a rod-forming unit for forming a rod-like composite of the supplied material; (c) a constriction...http://www.google.es/patents/US5163452?utm_source=gb-gplus-sharePatente US5163452 - Rod making apparatus for use in the manufacture of smoking articles
Rod making apparatus for use in the manufacture of smoking articles