A method and apparatus for forming a base fabric composed solely of warp yarns to be used in making a papermaker's felt. A plurality of yarns are drawn from a supply and wound around a pair of parallel drive rolls in a helical pattern by a travelling winding member. Two sets of parallel guide tines project...http://www.google.de/patents/US4495680?utm_source=gb-gplus-sharePatent US4495680 - Method and apparatus for forming a helical wound substrate composed solely of longitudinal yarns
