Abstract: There is provided apparatus for grooving or producing partial cuts extend parallel to the direction of transport in paper webs, blanks, cardboard boxes and like workpieces, particularly in the manufacture of envelopes with at least one rotatably mounted grooving disc and an opposing tool in the shape of a roller. Prior to the grooving operation, the workpiece is bent about an axis transverse to the direction of transport.

Abstract: A plant for the production of stacks of intermeshed blanks of paper, cellse or the like folded together in a zig-zag fashion, in which two supply rolls are associated with the plant. Material webs on the rolls correspond to a multiple of two, four, or six or a higher even-numbered multiple of the width of the individual blanks. Longitudinal cutting stations divide the material webs into partial webs. The partial webs are opposite each other and run toward each other in the longitudinal direction of the webs and are fed to a stack-producing unit from two opposing sides. The stack-producing units of partial webs adjacent to each other are arranged in displaced relation to each other.

Abstract: A method and apparatus for inserting insert items into an enclosure, the ert items being selectively compiled by data coding. At the insertion station of the apparatus the insertion items are inserted without reduction in speed by top belts and bottom belts, past lateral insertion guides which are pivoted into the inside edges of the enclosure, directly into the enclosure which is aligned by means of movable cams operated in timed relation to the apparatus and which is opened by top and bottom vacuum devices. The filled enclosure is then conveyed by a segmental roller such that the insertion items retain their speed throughout the insertion operation and do not stop.

Abstract: In a suction roller for a paper processing machine of the type having at st one supply passage leading to a control head disposed at an end face, the improvement which includes the suction opening being a suction slit. The suction roller may have an insert disposed in a recess at the periphery of the roller, the insert having a side surface cooperating with the recess to define a suction slit.

Abstract: There is provided an absorption pad having a C-shaped cross section and a perabsorbent layer embedded therein, said pad being blunted at its forward and rearward ends in the nature of a truncated pyramid. In a process for the manufacture of the absorption pad, the absorption pad blanks are shaped on a flake wheel and subsequently finished as absorption pads by pressing and folding. Prior to the folding step, a superabsorbent material is applied.

Abstract: There is provided a device and a method for turning flat articles, more particularly letter envelopes, flat bags or the like. The article is first moved out of its direction of conveyance into a curvilinear path, whereafter--without stopping in its original direction of conveyance--it is moved into a curvilinear path in a new direction until finally advancing onwards in its original direction of conveyance.

Abstract: An apparatus for cutting a moving material web of paper, cardboard or the ke to shape by burning with a deflectable laser beam focussed on the material web is provided, wherein an acousto-optical, frequency-dependent deflection means controlled as a function of the movement of the material web to be cut is used, the deflection element of which lies in the path of the laser beam.

Abstract: Confectionery solution containing gelling agents such as agar-agar, tends ry markedly to form streamers or tails when being poured. The formation of tails or streamers is inhibited in accordance with the invention by the atmosphere in the environment of the pouring region being maintained at (a) a temperature at least equal to the temperature of the confectionery solution and (b) a moisture content at least equal to the equilibrium moisture of the confectionery solution.

Abstract: There is provided an apparatus for aligning flat articles such as envelop flat bags or the blanks therefor or the like. According to the main feature of the apparatus, an article-supporting slideway is provided and lateral toothed belts run around reversing sprockets and are provided with article-engaging entraining members, the rotational axes of the reversing sprockets being perpendicular to the plane of the slideway.

Abstract: There is provided an apparatus for the manufacture of absorption pads for sorbing body fluid which is composed of two substantially identical so-called flake applicators each including a vacuum cylinder having shaped recesses which are so-called flake wheels. A first component layer of the absorption pad is produced on the first flake wheel and a second component layer is produced on the second flake wheel. The component layers produced on the first flake wheel are applied to the component layers produced on the second flake wheel by means of a transfer roll. A second transfer roll lifts the finished absorption pad from the second flake wheel and delivers the absorption pad by means of a vacuum belt to a machine for further processing.

Abstract: A quick change cutting cylinder for letter envelope and hygiene machines is rovided wherein the cylinder is rotatably received on both its sides with conical cylinder journals on the end faces thereof coaxially in respective bearing units which run with pretensioned precision anti-friction bearings with great radial and axial stiffness without play, and which are locked on a common parallel guide by means of fast-acting clamping devices.

Abstract: A method and apparatus for delivering articles from a high-speed production achine manufacturing hygienic articles, such as sanitary napkins, whereby the sanitary articles, which are separated from the production line and transported at high speed, are turned, aligned and slowed down successively, whereby the interval in the timed sequence of the articles is reduced significantly. Packs of the articles containing a preselected number of units are formed from the flow of sanitary articles so slowed down, and delivered for further processing.

Abstract: A variable-velocity drive is provided which serves to so control the periral velocity of a window cutter roller in an envelope machine working from the reel that, irrespective of the developed length of such roller, the velocity of the window cutter is the same as that of the paper web for the time that such cutter is operative on such web. To this end, the variable-velocity drive is basically devised from a number of universal joints interconnecting shafts whose axes intersect one another at an angle of up to approximately 45.degree.; the universal joints are so offset from one another in rotation that the variations or irregularities arising in the discrete joints are superimposed upon one another so as to have an amplifying effect. Since any one such universal joint arrangement passes through two velocity maxima and two velocity minima per revolution, gearing is provided on the input and output side to make the universal joint arrangement run at half the cycle speed.

Abstract: A noise suppression device is provided for a vacuum cylinder having a conl head which is used in high speed paper converting machines and which includes a sound attenuator which is integral with the vacuum cylinder. The sound attenuator incorporates a plurality of attenuation chambers within the vacuum cylinder which are interconnected by tubes arranged in an offset manner to overlap each other in the projection. Air passages are also provided in the side of the vacuum cylinder opposite the control head to connect the last attenuation chamber to the atmosphere.

Abstract: Confectionery solution containing gelling agents such as agar-agar, tends ry markedly to form streamers or tails when being poured. The formation of tails or streamers is inhibited in accordance with the invention by the atmosphere in the environment of the pouring region being maintained at (a) a temperature at least equal to the temperature of the confectionery solution and (b) a moisture content at least equal to the equilibrium moisture of the confectionery solution.

Abstract: According to the invention, separator plates bevelled at the front edges provided on the rotating feed segments of a sheet feeder, more particularly for envelope machines, which finally separate from the pile of blanks a blank for feeding, the front edge of the bottom flap of the blank having been separated from the pile by means of a tongue and vacuum device. The separator plates align the blank in the direction of conveyance, smooth it out, and then feed it to the extractor roller and engagement edge of the rotating feed segments.

Abstract: There is provided a sheet pile replenishment apparatus in the form of a cined unstacking and restacking device for lifting a sub-pile of sheets from a supply pile of sheets, conveying and depositing the sub-pile on a pile of sheets on a feed pile plate of a sheet feeder of a processing machine, such as an envelope or bag machine. The apparatus includes a separating roller, disposed at an adjustable angle, which separates the sub-pile from the supply pile of sheets, a clamp for engaging the sub-pile, a table of comb-like construction for conveying the sub-pile, vibrating aligning pins for exactly aligning the sub-pile, and means for depositing the sub-pile in an exact position on the pile of sheets ready for feeding by the sheet feeder to the processing machine.

Abstract: A process and apparatus for pouring confectionery solution is provided. The pparatus basically comprises a supply tank heated to approximately 80.degree. C., a dosing system, a nozzle plate and heating means. The proportion of the confectionery solution which is branched off from the supply tank for a pouring operation receives heat as it passes through the dosing system and/or the nozzle plate.

Abstract: A cutting roll for producing shaped inner and outer cuts on moving webs or iscrete blanks of paper or the like and, more particularly, for the production of blanks for envelopes on envelope machines, includes a base or parent member carrying a web-like blade whose development corresponds to the contours of the format to be cut. The blade is composed of one or more weld beads disposed one above another and one beside another horizontally on the base member.

Abstract: There is disclosed transport apparatus for transporting flexible sheet-like rticles, especially envelopes. The apparatus comprises a transport cylinder, which is mounted on a shaft rotatably journalled in a frame and which comprises two cylindrical body portions. The body portions are each provided with axial suction ducts with outlet openings communicating with the circumferential surfaces of the body portions. The body portions are provided at their mutually remote ends with bores into which project bushes, which are mounted to the frame to be secure against rotation. A suction device is connected in a certain rotational position of the cylinder, through passages which are provided in the bushes and open at the circumferential surfaces of the bushes, with the suction ducts of the cylinder body portions. In another rotational position of the cylinder, the suction ducts of the body portions are ventilated by the bushes. The apparatus is capable of high operating speeds with minimum noise production.