A die for a profile extrusion for partly varying the profile of articles during a molding operation is provided. The die comprises a stationary die assembly and movable die assembly slidable on a surface thereof. Each die assembly includes an outlet port for defining a part of products. The stationary...http://www.google.es/patents/US4960375?utm_source=gb-gplus-sharePatente US4960375 - Die for profile extrusion
