Abstract: A paper bag bottoming mechanism having a bottoming drum having a first end, a second end, and a sidewall disposed therebetween, a bar affixed to the bottoming drum, the bar having a first end and a second end, a first guide block attached to the first end of the bar and a second guide block attached to the second end of the bar, a first slideable finger attached to the first guide block and a second slideable finger attached to the second guide block, and a first actuating mechanism communicating with the first slideable finger for actuating the first slideable finger and a second actuating mechanism communicating with the second slideable finger for actuating the second slideable finger. Also disclosed is a method for making a using a clampless bar mechanism.

Abstract: A packaging machine for producing sealed packages from a web of packaging material having a surface of uneven thickness comprises a pressure roller to press the surface against a corresponding forming roller for sealing the package. The pressure roller comprises an elastically deformable body; and a core of greater rigidity housed therein, with the core comprising a first end surface cooperating with the body, and a radially inner second end surface. The core includes a first portion and a second portion, with the radial distance between the first and second surface at the first portion being greater than at the second portion.

Abstract: A device for cutting a web of material into signatures and folding the signatures comprising a first set of movable elements and a second set of movable elements, the web moving between the first and second sets of movable elements in a signature formation area. The first set of movable elements includes a first cutting element and a second cutting element variably-spacable with respect to the first cutting element and the second set of movable elements includes a first gripping element for interacting with the first cutting element and a first tucking element variably-spacable with respect to the first gripping element.

Abstract: To manufacture side fold sacks from a flat lying segment of a web of plastic tubular film, provided with side folds, one end of the segment is provided in such a manner with a staggered cut or a staggered detachment along a perforation that in a top view of the stagger the rear wall projects beyond the front wall. Then the stagger is provided with an application of adhesive as far as into the area of a fold line, which is located in the area of the edge of the front wall that has been cut free. Then the stagger is folded over the fold edge onto the front wall.

Abstract: An apparatus for manufacturing cross bottom sacks from laid-flat tubular sections consists of a frame having:- a table, means for holding the tubular section thereon in a processing station where the ends of the tubular section become opened out into a bottom square or rectangle, a suction gap arranged in the table in the zone of one of the ends of the tubular section, and suction means mounted in the frame above the suction gap and which is able to be raised and lowered for opening one end of the tubular section. Above the plane of the tubular section situated in the processing station, a slide can be extended and retracted over the table in the direction of the median line of the tubular section, the median line of the slide defining with the median line of the tubular section a plane perpendicular to the plane of the tubular section. The width of the slide is less than the interspacing of the hypotenuses of the two opened-out corner folds from each other.

Abstract: A method and apparatus for producing a gusseted container, which method includes the steps of feeding unfolded, corrugated paper, die cut blanks sequentially from the feed module of a corrugated paper box folding apparatus through the prefold, fold and final fold modules, applying glue to the die cut blanks, creasing three gusset areas of the blanks, gathering and pleating the gusset areas, folding a panel tab against the adjacent blank panel, pressing the folded gussets and panel tab against the glue on the blanks and folding the blanks and panel tab to define the gusseted container.

Abstract: A device for smoothing out and pressing together the free projecting end extending over the filling material of filled sacks, said sacks comprising side walls which are inwardly folded and there being two movable pairs of fingers engaging in the sack in the plane of the opened sack or a plane being parallel to said plane as well as a plane being lateral to said plane, whereby said fingers of each of said pair of fingers are arranged at a distance in the transverse direction of the sack opening and two rods or knives are arranged, said rods or knives being movable against each other and are extendable from the outer side of the sack between the fingers of each pair of fingers engaging in the sack, and, if necessary, on both sides of a closable loading funnel of a sack filling station.