Abstract: A process for the manufacture of packages made of prefabricated containers which are substantially dimensionally stable and have at a filling end an outwardly projecting flange edge on which a cover sheet is fixed by welding, hot sealing or bonding. The process comprises the steps of providing a service belt consisting of a thermoplastic sheet material produced in a continuous sheet forming process. The continuous service belt moves along a path through a package forming, filling and closing work station. Recesses are formed in the service belt for receiving the prefabricated containers which are incorporated in succession and in a close spaced relationship into the recesses of the service belt. The prefabricated containers are filled with material and a continuous sheet web including weakening lines defining the outer edge surface dimension of a cover is supplied for each of the containers disposed in the recesses.

Abstract: An operation table cover formed of a hose closed at one end and open at the other end. The open end has two bent-over portions. The closed end of the cover is insertable into the pocket formed by the bent-over portion on the upper face of the cover. The cover has in the region of the bent-over portion an expanded part. A device for making the expanding part by elastically deforming the hose portion by means of two counter rollers is also provided.

Abstract: A package bag of a box-like shape has folded sides and the front and upper walls provided with reinforcement layers. The bag is formed of thermoplastic film. Each reinforcement extends predominantly over the entire flat of the front and back wall whereby a stiff structure results.