Abstract: A device for optionally or selectively drawing in a cutout from a stack of several cutouts, or taking over a cutout from a separating cutting device, which separates the cutout from a material web, includes a vacuum guide roller in which the cutout coming from the stack or the cutout that has been taken over can be passed to a subsequent work station for processing of the cutout in a work cycle, at a cycle speed. This device reduces both production costs and machine maintenance costs, reduces the amount of space required for the machine and generates less noise. The vacuum guide roller is configured as a segment roller in which optionally or selectively the cutout can be drawn in from the stack and accelerated to the cycle speed, or the cutout taken over from the separating cutting device can be accelerated to the cycle speed.

Abstract: In an apparatus for bonding window pieces to envelope blanks having window cut-outs, window pieces are cut from a transparent material web and then the window pieces and envelope blanks are brought together by a suction roller serving as a bonding cylinder and joined to one another by adhesive applied onto the window pieces by a gluing mechanism while the window piece is on the suction roller before being joined to the envelope blank. A suction belt conveyor device is provided, at least in the region of the joining location, as a carrier for the envelope blanks and as a counter-tool for the suction roller serving as a bonding cylinder.

Abstract: In order to fold folded products having sealing flaps with or without mating flaps, such as packaging bags including envelopes with or without self-adhesive glue, the envelopes are moved against a stationary stop and the mating flaps and the sealing flaps are then turned over by suction elements arranged on a mating flap roll and on a sealing flap roll. The mating flap roll, which bears the suction element that turns the mating flaps over, has a radius that is reduced on a part of the roll's circumference that is not equipped with the suction element. The mating flap roll can be locked in such a rotational position, that a folded product not having a mating flap can be moved past this roll to the stationary stop without contacting or virtually without contacting this roll.

Abstract: In a method for the production of mailing bags, including envelopes, from material in web form, the material is processed in numerous ways and at least two separately prepared parts are transported to a joining station and there joined to one another with an adhesive. The two parts, at least one of which is already provided with the necessary adhesive, are placed one upon the other during an arcuate movement and joined to one another, in order to increase the speed of production. Particularly, at least one of the two parts (6, 7) and/or its carrier, performs an undulating movement in the region of the joining station (5).

Abstract: The invention relates to methods of producing papers with contact adhesive along edge strips on their one side, paper blanks being given a coating on both sides and, on one side, additionally a coating with the contact adhesive on the coating.

Abstract: An apparatus for forming a score line in a pre-cut blank, such as an envelope blank (3), includes a scoring blade roller (6) and a counter roller (7), wherein a portion of the circumferential surface of the scoring blade roller (6) is provided with a suction shell (12) having a plurality of suction openings (13) therein. The suction openings are connected together in respective groups that may be individually and selectively connected to a vacuum or suction air source. In this manner, a leading edge portion (72) of the blank (3) can be taken up, held, and rotationally pulled by the scoring blade roller (6), while a tail portion (70, 71) of the blank (3) downstream of the score lines (2) or the scoring blades (33, 34) is not fixedly held on the scoring blade roller (6), but rather is only loosely held and guided along.

Abstract: The invention relates to a method and an apparatus for folding folding products with sealing flaps and with or without mating flaps, in particular on packaging bags including envelopes with/without self-adhesive glue, it being possible for the envelopes to be moved against a stationary stop and for the mating flaps and the sealing flaps then to be turned over by suction elements during a subsequent movement of the envelopes, said suction elements being arranged on a mating flap roll and on a sealing flap roll.

Abstract: The invention relates to a method for the production of mailing bags, including envelopes, from material in web form, the material being processed in numerous ways and at least two separately prepared parts being transported to a joining station and there joined to one another with the aid of adhesive, the two parts, at least one of which is already provided with the necessary adhesive, being placed one upon the other during an arcuate movement and joined to one another, in order to increase the speed of production.

Abstract: The invention relates to a process and to an apparatus for producing packaging bags, envelopes and the like from web-like material, having a plurality of stations, including a side-folding station, in which the material is processed, which includes being cut to size, provided with preformed longitudinal and transverse creases and adhesive, folded and, finally, finished off, the drying of not yet set adhesive also being covered here.

Abstract: A rotatable knife roll with at least one foil knife secured on a portion of the body of the roll and having a sharp and endless cutting edge closed within itself to cut out window openings. There are breakthroughs for suction apertures arranged within the cutting edge. There is at least one suction-air control valve arranged on the face side of the roll body. The valve is rotatable relative to this portion of the roll. The suction-air control valve has at least one suction-air-control channel and at least one fresh-air channel. There are suction apertures for temporarily retaining a letter envelope blank over a suction and transport angle zone &agr;, and for retaining a piece of material cut out by the foil knife across a suction and transport angle zone &bgr;. The suction apertures are arranged in rows to which suction channels are allocated in the part of the roll body.

Abstract: The ends of material webs or tapes are joined to each other in an apparatus in which two holding and press-on heads are tiltable about fixed journal xes away from two fixed guide rollers for the webs so that a slide carriage for the heads and for the fixed guide rollers is avoided. The holding and press-on heads are mounted outside of the spacing between the guide rollers, but close to these guide rollers, but with a defined spacing from these guide rollers.

Abstract: Flat articles such as letter envelopes or letter envelope blanks or the like are aligned for further processing by transporting the articles through an alignment path with the help of a pulling mechanism that seizes or entrains each individual article along its leading edge as viewed in the transport direction and moves the article by pulling the article against a stop member or members which are also moved, but with a slower speed than the pulling of the article. Once the leading edge of the article bears against the stop member or members, the article is aligned and ready for further processing. The entraining or seizing takes place in an area positioned substantially centrally along the leading edge of an article between ends of the leading edge of an article.

Abstract: The invention relates to a method for the continuous manufacture of envels, bags, shipping pouches, or the like, of web type material, especially paper or the like, with or without side folds, including lateral gumming or central gumming and with a respective folded and glued bed bottom, whereby the web type material is first precreased, cut, provided with adhesive or gummed, folded, severed, prefabricated into a tubular blank, and finally closed at its bottom.

Abstract: An enclosure such as a letter envelope, a casing, shipping pouch, file for, or the like, is made of paper or similar suitable material to have a front portion (3) and a back portion (4) as well as side flaps (6) and (7). The enclosure may be provided with a closure flap (23) that is either part of the front portion (3) or part of the back portion (4). A bottom portion (5) is arranged between the back portion (4) and the front portion (3), whereby the bottom portion is preferably an integral component of the front and back portions. The side flaps (6, 7) are provided with respective folding creases extending longitudinally and foldable bottom side tongues (18, 19) are provided at the bottom end of the side flap (6, 7). These basic features are common to a plurality of different enclosures which provide a substantially larger enclosed volume than heretofore.

Abstract: Articles, such as envelopes, are formed into stacks that are transported to packing station. For this purpose a stacking and transport mechanism is positioned between a depositing mechanism (4, 4a) and the packing station. Continuously and individually arriving articles are set with one of their edges (6, 6a) on a stacking surface (7, 7a). The articles to be stacked are first held at the beginning of the formation of a stack (10, 10a), by a first, forward or leading stack holder (8, 8a) which moves in the direction in which the stack (10, 10a) increases, (FIG. 4 ) toward the packing station. Thereafter, a second forward or leading stack holder (9, 9a) takes the position of the first, forward stack holder (8, 8a) (FIG. 6 ). Upon completion of the stack (10, 11 or 10a, 11a) (FIG.

Abstract: An enclosure such as a letter envelope, a casing, shipping pouch, file for, or the like, is made of paper or similar suitable material to have a front portion (3) and a back portion (4) as well as side flaps (6) and (7). The enclosure may be provided with a closure flap (23) that is either part of the front portion (3) or part of the back portion (4). A bottom portion (5) is arranged between the back portion (4) and the front portion (3), whereby the bottom portion is preferably an integral component of the front and back portions. The side flaps (6, 7) are provided with respective folding creases extending longitudinally and foldable bottom side tongues (18, 19) are provided at the bottom end of the side flap (6, 7). These basic features are common to a plurality of different enclosures which provide a substantially larger enclosed volume than heretofore.

Abstract: An apparatus for turning bodies such as cardboard boxes or cartons or the ke, especially for use in a machine for packing envelopes into cartons, includes at least one bottom carrier which is tiltably driven about a horizontal axis, and at least one top carrier which may be tilted on top of the body to be turned over. At least one connecting member and journalling elements connect the two carriers with each other in such a manner that both carriers can be tilted together or in unison and so that one carrier can also be tilted independently of the other carrier by a respective drive or tilting member. At least one carton supporting lip protrudes from at least one of the carriers for holding the carton while it is being turned.