Abstract: In a method and device for processing elongated tubular material, more particularly for everting a sausage or packing casing having been subjected to a surface treatment, tubular material is discharged from a package or supply reel and passed through a stationary guide member having an annular cross-section. The material is folded back over said guide member and displaced within said guide member during the everting action into a direction contrary to that of the material outside the guide member. The latter forms a new package of tubular material which encloses the stationary guide member. The latter is a hollow mandrel comprising a freely projecting end, the end edge of which being adapted to fold back tubular material. Members are provided at distance from said end edge for tucking the tubular material upon said mandrel or an extension thereof.

Abstract: A casing of stretched plastic material, whether or not filled with a fluid such as gas or air, is wound with some tension about a smooth heated mandrel. During its curved path of travel said casing is on the one hand subjected to a contact or a radiation heat and on the other hand to a convection heat, said contact radiation heat prevailing during a period of time which is greater than that of the convection heat, thus causing the inner curved portion of the said casing to set during the time that the outer portions of the casing windings have already cooled down, so that smooth curved surfaces are obtained.

Abstract: A stretched plastic casing is tensioned by means of a fluid medium after having been introduced into two clamping rollers, and conveyed to a bending member in front of or at the location of which it is subjected to a thermal treatment such, that it is bent out of its original path, while being thermally deformed, and is subsequently conveyed in the same direction of curvature, in a bent form, so as to be cooled down.