Abstract: A package manufacturing apparatus which can fold a portion-to-be-processed accurately along a folding line without misalignment between the folding line and an actual fold. The package manufacturing apparatus comprises a pair of turnable arms (61), folding-line applicators (68, 80), and two pairs of bending arms (62) and compression coil springs (74). The pair of turnable arms (61) are disposed opposite to each other such that they are swingable. The folding-line applicators (68, 80) nip a portion-to-be-processed of a package in process of forming, form a predetermined folding line in the portion-to-be-processed, and temporarily fold the portion-to-be-processed along the folding line, while each of the turnable arms (61) turns. Each pair of the bending arms (62) and the compression coil springs (74) is disposed between one of the folding-line applicators (68, 80) and the corresponding turnable arm (61) and elastically brings the folding-line applicator (68, 80) into contact with the portion-to-be-processed.

Abstract: Methods and apparatuses for registering the level of contents in a packaging material tube which is formed in a packaging machine and is continuously supplied with contents and sealed-off transversely for the formation of individual packaging containers filled with contents are previously known and include, int. al. sensing devices located in the packaging material tube. In order to facilitate cleaning and sterilization of the packaging machine, use is made, in the method according to the present invention, exclusively of sensing devices located outside the packaging material tube (6), in the form of a device (15) sensing the outside temperature of the packaging material tube (6), the device being, via a master unit (17), connected to a feeder device (12) which, in response to the signal of the sensing device (15) via the master unit (17), is regulated so that contents (18) are supplied at a suitable rate to the lower end of the packaging material tube (6).