Abstract: An article is disclosed comprising a cylindrical hollow rod, composed of a shirred packaging tube, with an internal bore having a circular cross-section and ending in cavity openings at the two end faces of the hollow rod, in combination with a sheathing which surrounds the hollow rod, leaving the cavity openings free, and an annular body at one of the two cavity openings. The annular body comprises an annular disk, whose inner side face bears directly against the adjoining end face of the hollow rod. The outer side face of the disk is at least partially surrounded by the sheathing. The internal bore of the disk remains free of the sheathing and contains elements for fixing the disk to a cylindrical filler horn.

Abstract: Disclosed is a shirred tubular casing comprising an outwardly pointing helical main fold structure comprising windings of two main folds and primary accessory folds arranged between the main folds and an accessory fold structure comprising secondary accessory folds. Also disclosed is an annular shirring member and an apparatus equipped with this shirring member for manufacturing the shirred tubular casing.

Abstract: A process for the manufacture of a tubular package filled with pasty material which comprises (a) positioning a filling tube of a filling device inside the inner tube of a tubular rod of flexible material, said rod comprising an inner tube substantially free from folds and a shirred outer tube, the hollow space of said shirred outer tube constituting a casing for said inner tube and said inner tube being a deshirred length of the tubular rod which is inverted into the hollow space of said shirred outer tube thus forming a double-walled rod, wherein the outside surface of said inner tube and the inside surface of said outer tube are in direct contact, the inner tube being integral with the outer tube at one of its ends and sealed at the other; in a manner such that the filling tube adjoins the seal of the rod, and (b) feeding pasty material from the filling device through the filling tube into said inner tube of the rod, and simultaneously turning the tube forming the shirred stick inside out under a frictiona

Abstract: Disclosed is a supporting sheath for a longitudinally shirred packaging tube, comprising a generally tubular shaped supporting sheath comprised of a thermoplastic synthetic resinous material and having an inside diameter slightly larger than the outside diameter of the shirred packaging tube and a length substantially greater than the length of the shirred packaging tube, so that when a shirred packaging tube is placed inside of the supporting sheath, two projecting ends of the supporting sheath remain; a pair of generally planar disk elements, each including a central aperture therein, each of the disk elements having an outer diameter which is approximately equal to the diameter of the supporting sheath; each of the disk elements being adapted to be slid with its aperture over one of the projecting ends of the supporting sheath and abutted against the end of the shirred packaging tube contained in the supporting sheath and being adapted to contact the supporting sheath at least along its planar surface faci

Abstract: This invention relates to a stiff tubular hollow rod, said rod being substantially double-walled over its entire length and comprising one single length of flexible tubing, the wall of which is substantially free of openings and at least one of the surfaces of the tubing is provided with a coating, said rod comprising a shirred outer tube and an inner tube substantially free of folds arranged in the hollow space of said shirred outer tube constituting the casing for the inner tube, the inner tube being joined to the shirred outer tube at one of its ends and sealed at the other. The invention also relates to processes for making said hollow double-walled tubular rod of flexible tubing and to a sausage produced using said hollow tubular rod of flexible tubing.

Abstract: A support sheathing for use, for example, on tubular sausage casings, the sheathing forming a container for a cylindrical hollow rod made of a shirred tubular casing, the sheathing comprising a heat-shrinkable, net-like, plastic tubular material, the sheathing surrounding the tubular casing about its outer cylindrical surface and forming integral end portions for covering end portions of said tubular casing, said integral end portions of the sheathing having annular openings therein surrounded by an annular bead, whereby the end openings of the sheathing permit access to the interior cavity of the hollow rod.