Abstract: A first hanger and a second hanger are disposed on a working platform according to a hanging manufacturing apparatus for manufacturing an air enclosure, in which the first hanger is constituted by a first hanging frame and a plurality of first supporting arms and used for hanging a first hot sealing mold, the first hanging frame drives the first hot sealing mold on the plurality of first supporting arms to hot-seal an air cylinder film sheet while being moved to form a plurality of nodes on the air cylinder film sheet, and the second hanger is constituted by a second hanging frame and a plurality of second supporting arms and used for hanging a second hot sealing mold, the second hanging frame drives the second hot sealing mold on the plurality of second supporting arms to hot-seal the air cylinder film sheet while being moved to form a plurality of air cylinders on the air cylinder film sheet.

Abstract: A transformation station for a packaging production machine comprises side frames between which tool-carrier cassettes are mounted. The side frames support slides on which members slide for the mounting of the tool-carrier cassettes. The members for mounting the tool-carrier cassettes comprise cassette supports that can be moved in opposition across and according to material advancing direction dimensions of the tool-carrier cassettes. The cassette supports are fitted with first devices for attaching in position the cassette supports and second devices for locking the tool-carrier cassettes to the supports.

Abstract: A new and improved case sealer assembly comprises a pair of oppositely disposed case drive mechanisms for conveying a multiplicity of cases through a sealing station. The drive mechanisms are laterally separated from each other such that an interior space is formed therebetween which effectively defines a sealing station for serially accommodating the multiplicity of cases to be sealed.

Abstract: An adjusting device that is mounted in a film packaging machine includes a moving mechanism that selectively moves two support blocks in opposite directions and toothed wheels mounted to the support blocks in a symmetric manner and driven by a timing belt that is mechanically coupled to a motor for rotating film drive rollers that are mounted to selected ones of the toothed wheels. Thus, the film drive rollers are movable in opposite directions with the support blocks for adjusting the distance between the rollers, which allows for accommodation of packaging films of different sizes between the rollers, while not interfering with the operation of the film drive roller for driving the packaging film therebetween. This arrangement allows for uniform application of driving force to the film by the film drive rollers and thus realizing smooth and stable movement of the film in packaging an article.

Abstract: A paper folding machine is provided including a housing having upper and lower fold plates constructed for quick and easy removal of the upper plates from the machine so that repairs can be made. The plates include a paper stop and an adjuster connected to the paper stop for adjusting the position of the paper stop. The upper plate partially encloses a work area and the upper plate has a slot for receiving the adjuster therethrough for easy adjustment and/or removal of the upper plate.

Abstract: A folding gear is comprised of a cylinder that is mounted to a frame for rotation. At least one clamp is arranged on the outer surface of the cylinder. The at least one clamp can be positioned by an actuator which includes a flexible toothed shell that is shaped by a non-circular section of a shaft. A hollow gear engages this flexible shell and cooperates with it to form a harmonic drive gear.

Abstract: An adjusting device of a thermo shrinkable film machine includes first and second blocks movably mounted on two rails between two sideswalls on the base of the machine. Each of the two blocks has a wheel for contacting the film on a shaft. Two rotatable rods have two threaded sections of different directions of threads which rotatably extend through the two blocks respectively. The two respective ends of the two rotatable rods are connected to a rotating piece which is rotatably received in a case located between the first and second blocks. A driving wheel drives one of the rotatable rods so as to move the two blocks in opposite directions and to adjust the distance between the two wheels contacting the film of different thickness.

Abstract: A device for rotary conversion of a web or sheet material by cooperating cylindrical tools. The tools are arranged in a cassette. A driving device connects with the tools for rotating them. The cassette with the tools is placed in an adaptive cassette receiver. The driving device includes a motor and is supported on the lid of the cassette receiver. The cassette is placeable in and removable from the cassette receiver and is secured there and the driving device is connected to the tools.

Abstract: A longitudinal folding device includes formers for longitudinally forming and folding paper webs having different widths. Each former, together with its folding rollers, hopper roller and longitudinal cutting device is supported in a frame such that the former can be displaced in the axial directions of both the folding rollers and the hopper roller.

Abstract: The present invention relates to a copy-carrying cylinder which has a peripheral surface (2) supporting sheet-like copies and which is provided with retaining elements for fixing the sheet-like copies in place on the peripheral surface (2). A folding device (5) which can be moved into and out of openings (4) at the peripheral surface (2) are bounded by at least one movable surface element (13). The surface element (13, 13.3) which is associated with the folding device (5) is designed in such a manner that it takes its closed position (22) automatically.

Abstract: A presser assembly for supporting blanking scrap during a blanking operation is provided. The presser assembly includes a support rail; a presser rail connected to the support rail; and a connecting rail connecting the presser rail to the support rail and being adapted to pivot with respect to at least one of the support rail and the presser rail through a predetermined pivot angle range for changing a distance between the support rail and the presser rail. By pivoting, one can thereby selectively affect a folding and an unfolding of the presser assembly during a blanking operation.

Abstract: An automatic packaging machine has mandrels with a plurality of fingers for gripping an object. A cam track has contours which defines the location of positions along a conveyor carrying the mandrels. The fingers are closed by a spring and opened by a cam follower encountering a contour of cam track. This way a plurality of objects having a variety of widths may be carried by the fingers without requiring a readjustment of the machine.

Abstract: A machine is provided for the creasing, perforation or circular cutting of a material in the form of sheets such as paper, plastic and the like. The machine includes a bed, a horizontal loading plane (11) that is intended to accommodate at least one stack of starting sheets, a feeding plane (13) as a continuation of the loading plane, an advancing suction roller (14) to pick up and transfer every single sheet from the bottom of the stack on the loading plane to the feeding plane, and a processing unit (15) that is intended to accommodate one sheet at a time for a creasing, perforation or cutting operation. A female grooving tool, each consisting of annular elements that are assembled together, is provided for the creasing.

Abstract: The present invention proposes a plastic film guiding device of a packaging machine, which comprises a frame, a screw rod, a walking block, a positioning rod, a pair of slanting rods, and a pair of slide bodies. The plastic film guiding device of the present invention is arranged in suspended way to reduce its contact with the surface of a machine table so that the present invention suffers less heat to facilitate the adjustment. Most importantly, the present invention has instant width-adjusting function, and can simultaneously perform identical adjustments to the widths of both sides. The adjustment is fast, and the positions of movement are exact. Moreover, fine adjustment of width can be performed at any time during the operation of the machine.

Abstract: The present invention is directed to an outside diameter adjuster for a folding cylinder. The folding cylinder rotates about an axis and has a basic body having a columnar outer circumferential face, where an outer circumferential member forms one portion of the outer circumferential face of the basic body and is movable in a radial direction of the basic body by the angular displacement of an eccentric portion. The eccentric portion is angularly displaced by gears to which it is connected. These gears are connected to other gears, some of which are helical gears, that are configured to rotate and/or axially move in a manner such that the angular displacement of the eccentric portion can be totally controlled by the movement of the gears while the folding cylinder rotates.

Abstract: A mast and trolley assembly for a case sealer machine includes a set of fixed bearing members mounted upon the trolley assembly, and a set of movably adjustable bearing members mounted upon the trolley assembly such that opposite sides of the trolley assembly will engage the mast member with the proper degree of tension whereby adjustable vertical movements of the trolley assembly along the mast member are smoothly accomplished without any play or chatter. The machine head assembly is also bolted to the trolley assembly such that replacement or exchange of different sized head assemblies are readily, easily, and quickly achieved. A coiled spring mechanism is mounted upon the mast member and operatively attached to the trolley assembly so as to counterbalance the weight of the trolley and head assemblies thereby rendering the vertical adjustments of the head and trolley assemblies along the mast member easy to achieve in a counterbalanced manner.

Abstract: A box erecting machine that can readily be set up to assemble boxes of different sizes contains pointers and scales permitting the vertical and horizontal adjustment of the box magazine, the centering of the flap folding structures, and the vertical adjustment of the box hold down plates to be readily set according to the dimensions of the box to be assembled. The vertical adjustment of the box magazine, the horizontal adjustment of the box magazine, and the centering of the flap closure apparatus are adjusted until the corresponding pointer and scale of those structures indicate the width measurement taken directly from the box. The hold down plate assembly is adjusted until the corresponding pointer and scale indicate the height of the box as measured directly therefrom. Horizontal adjustment of box magazine width and horizontal adjustment of an adjustable guide rail are performed against an actual box placed in those structures.

Abstract: A buckle folder machine includes two or three folder pockets and several folding rollers mounted in a folding block which can be detached from the machine frame. The sheets are fed to the folding block via transport devices along an input plane in the direction of travel of the paper and delivered along an output plane in the same direction. The input plane and output plane are situated on substantially the same plane. The folding rollers and machine pockets are arranged in the folding block in such a way that the sheet input and sheet output are also situated in the area of this common plane in line with the position in which the folding block is mounted inside the machine frame. All folding rollers are connected to each other in the folding block via coupling gear wheels positioned on either end of each folding roller.

Abstract: Apparatus, in particular packaging machine, with movable members which are exposed to wearing stresses on one side.Primarily packaging machines for the manufacture of cigarette packs (10) of the soft-cup type employ folding mandrels (15), on which blanks (14) are temporarily fixed by means of pressure members, in particular by means of pressure rods (19). These are exposed to wearing stresses on one side, specifically in the region in which they bear on the folding mandrel (15). In order to avoid operating faults caused thereby, the pressure member, specifically the pivoting lever (20), is adjusted from time to time, specifically by partial rotation, so that, after a particular operating period, another circumferential region of the pivoting lever (20) is exposed to wearing stress.

Abstract: Folded products are produced in a web-fed press by directing the printed web to longitudinal formers and then to multi-width transverse folders. The longitudinal formers are supported so that at least selected ones of them can be shifted vertically with respect to the transverse folders. A parallelogram-like linkage is used to shift the longitudinal formers vertically. Vertical shifting of the formers accomplishes transverse shifting of the location of the delivery of formed products from the formers to the multi-width transverse folders.

Abstract: An apparatus for positioning a guide slidably mounted on a machine wherein the guide is driven by a lead screw turned by a DC motor through a worm drive gearhead. The DC motor is controlled by a programmable logic controller (PLC) with input from an operator interface and feedback from a hollow shaft encoder attached directly to a shaft extending from the lead screw. Ladder logic programming in the PLC directs the motor to run or stop based on comparing a target position for the guide with the current position based on electrical signals from said encoder. A home position for each guide corresponds to the guide's position when it has moved fully outward encountering an outward stop. The programming also allows manual jogging of the guide through the operator interface. The programming takes up mechanical backlash in the apparatus on each move by overshooting the target position a predetermined amount when a move is made in an outward direction.

Abstract: A corrugated board folder is disclosed for folding the flap of a corrugated board onto the base of the corrugated board along a fold line having an inside fold line and an outside fold line. The corrugated board folder includes a conveyor mounted on a frame for supporting the corrugated board during folding and a series of rollers that engage the flap of the corrugated board. Each roller in the series of rollers is supported adjacent the conveyer by a roller bracket. The roller has an axis which pivots about a bracket pivot point of the roller bracket. The bracket pivot point for each bracket is aligned with the inside fold line of the corrugated board and each roller is angularly positioned to squarely engage the flap of the corrugated board.

Abstract: A device for and method of spacing a corrugating guide finger relative to a corrugating roll. The device includes a tail and a head. The head has a slot therethrough for sliding receipt of the corrugating guide finger. To space the finger, the slot is slidingly received onto the finger and the tail simultaneously contacts the inner surface of the finger and the outer surface of the corrugating roll.

Abstract: A vertically oriented horizontally extending carton conveyor and loading apparatus incorporates a mechanical mechanism for simultaneously adjusting the distance between a pair of longitudinally extending guide rails at a plurality of locations. The carton conveyor also includes an intermediate member and a carton finishing apparatus disposed on the intermediate member for closing and sealing operations. The mechanical mechanism simultaneously moves a first of the guide rails and the intermediate member laterally with respect to a second of the guide rails, but with the mounting member being moved one half of the distance of the first guide rail.

Abstract: A vertically oriented horizontally extending carton conveyor and loading apparatus includes a mechanical mechanism for transporting a plurality of cartons along an endless pathway in a horizontal plane. The apparatus also includes carton finishing systems and a second mechanical mechanism for adjusting the carton conveyor to accommodate cartons of different sizes and for positioning the cartons with respect to the loading apparatus and finishing systems. This second mechanical mechanism fixes an upper, back and trailing corner of a carton with respect to the pathway so that the upper, back and trailing corner provides a reference point for adjustments with respect to carton width, thickness and height.

Abstract: A device for making folded products, which is usable to simultaneously make two different folded products, includes a plurality of partial paper web train fold formers arranged on lower and upper levels and a double wide folding station. The fold formers located in the upper level are shiftable in the direction of the axis of rotation of the cylinders in the folding station. This axial movement of the upper level fold formers allows the production of various folded products having different signature arrangements by the insertion of the partial web trains from the upper level fold formers into either the right or left sides of the double wide folding station.

Abstract: A side jogging mechanism for aligning a sheet to be folded into an outsert by an outsert folding apparatus comprises a frame including first and second oppositely disposed side frame members between which the outsert folding apparatus is received, an adjustable solenoid assembly mounted on the first side frame member, and a side stop assembly mounted on the second side frame member. The solenoid assembly includes a solenoid, a plunger extending from and actuated by the solenoid, and a pusher mounted at an end of the plunger located between the first and second side frame members. The side stop assembly includes a side stop located between the first and second side frame members. The solenoid assembly further includes an adjusting mechanism, e.g., a threaded shaft and handwheel, for adjusting the position of the pusher between the first and second side frame members, which adjusting mechanism is located outside the frame. Desirably, the side stop assembly also including an adjusting mechanism, e.g.

Abstract: A horizontal type of packing machine with an adjustable pouch former, in which a guide screw having half left-handed threads and half right-handed threads is used for adjusting the width of the pouch former; a cylindrical gear is in mesh with two gears to drive a left and a right gear racks and to simultaneously adjust the height of two guide plates on both sides of the machine in order to adjust the height of the pouch former. According to the design of replaceable paper-guiding plates, a user can select the proper paper-guiding plates in accordance with the products and the packing paper for the purpose of increasing the function of the pouch former; the metal plate parts are used for forming a near quadric chain assembly by means of a rotary connector so as to have such parts moved and adjusted upon the adjustment of the pouch width.

Abstract: Adjustable bucket packaging machine for the packaging of items and literature into a carton having conveyored buckets whose size is readily adjustable by phase adjusters, which move the leading and trailing bucket members about a central member. Alignment of adjacent loading devices is also accomplished by the use of phase adjusters, as well as spacing of flites along a conveyor system which is also adjusted by phase adjusters.

Abstract: A modular machine for making cardboard packages having a plurality of modules. A controlling automatic indexing device is provided which cooperates with a length of shaft and blocking means attached to each module for stopping the length of shaft at a predetermined indexing angular position. Thus, when the machine is stopped in order to change or clean the rotary members of the modules, each length of shaft of each module is stopped in the same position of the cycle and remains at its angular position during separation of the modules.

Abstract: A packaging machine with a flite adjustment mechanism for readily changing the distance between a rearward and a forward set of flites where a flits head shaft is coupled by a chain to a slave shaft by a phase adjuster. The flight head shaft drives a pair of outboard flite sprockets and chains. The slave shaft drives an independently rotating hub which drives a pair of inboard chains via inboard flits sprockets, which are driven at approximately the same speed as and angularly deflected from a pair of outer sprockets. Spacing of the flites is changed by adjustment of a phase adjuster. A splined network also allows for adjustment to accommodate different flits lengths.

Abstract: A paper web folder for a rotary web-fed press uses two laterally shiftable formers and folding roller pairs on a first level and a stationary former and folder on a second level to provide the capability of forming and folding various full width paper webs into two or three equal part web width ribbons. These ribbons can then be associated with each other to form various products.

Abstract: A selection and setting apparatus in box or carton blank erecting machines which enables changing of the blank format in the machine. The apparatus includes format selectors coacting with at least two setting wheels. The setting wheels each include at least two pins which are of different lengths enabling settings for different formats. The free ends of these pins contact coacting stops arranged on the erecting tool or carton blank magazine in the machine which are movably settable to the blank size in question.

Abstract: Apparatus for adjusting the spacing of drive assemblies for transport of tubular film over a forming tube includes adjustment arms attached to each of the separate spaced drive assemblies which are attached to a rotatable adjustment plate. Rotation of the adjustment plate about its axis simultaneously moves the drive assemblies in equal and opposite directions with respect to the centerline of the tubular film product.

Abstract: An adjustment and automatic inward-contraction and outward-expansion machanism, and particularly a single mechanism that provides the function of variable specification adjustment as well as automatic inward-contraction and outward-expansion of the claw arms during operation is described. The mechanism includes a worm provided for driving the worm gear and other related devices in rotation so that a cylindrical groove cam is engaged in motion up and down. With the cylindrical groove cam in motion up and down and further by means of L-type steering block, push and pull rod and four-bar linkage, claws are provided for specification adjustment.

Abstract: A two-pocket folding machine has a case formed by a top case portion hinged to a bottom case portion. The case has a top pocket and a bottom pocket, with each pocket including a first plate and a second plate. The top case portion includes the first plate of the top pocket, with the top pocket first plate being fixed to the top case portion. The bottom case portion includes the first plate of the bottom pocket, which is fixed to the bottom case portion. A moving assembly includes preferably a pair of movable panels, with the second plate of the bottom pocket and the second plate of the top pocket being fixed to the movable panels and moving with the moving assembly. The moving assembly is displaced along a predetermined trajectory with respect to the top and bottom case portions during opening and closing of the top and bottom case portions such that the second plates are parallel to and close to the corresponding first plates when the case portions are closed.

Abstract: A selection and setting apparatus in box or carton blank erecting machines which enables changing of the blank format in the machine. The apparatus includes format selectors coating with at least two setting wheels. The setting wheels each include at least two pins which are of different lengths enabling settings for different formats. The free ends of these pins contact coacting stops arranged on the erecting tool or carton blank magazine in the machine which are movably settable to the blank size in question.

Abstract: The present invention describes an apparatus for creasing and cutting an endless web of cardboard. A pair of rollers operates on the web while another pair of rollers is in an inactive position where the tools mounted on the rollers can be moved to new positions. When it is time for different operations to be performed on the web the original rollers working on the web are removed from their working position and the rollers previously in the inactive position are moved to the working position. The rollers now in the working position have had their tools aligned for the new operation while they were in the inactive position. The rollers originally in the working position are now in an inactive position where the tools on these rollers can be aligned for another operation. Each pair of rollers is independently driven to spin independent of the position of the roller.

Abstract: Apparatus and a method for folding flaps onto panels formed in folded box blanks, particularly those constructed from corrugated cardboard. As a blank advances along a paper line, a first station engages leading edges of the flaps and forces the flaps into an intermediate plane representing a partial folding operation. Then a second station controls the relative velocities of the flaps along the paper line with respect to the panels to compensate for skew that can occur in other stations. A final station completes the folding operation. The resulting fold is made about an axis, or fold line. if the flap is to be folded about a prestamped score line, the fold and score lines are coextensive. Typically the flaps are folded 180.degree. and the first station produces intermediate folds that are displaced 90.degree. from the panels.

Abstract: Computer controlled method and apparatus for paper sheet bending in a bag making machine for making hand bags, pocketbooks, vanity cases, etc. Two computers are used to store the information needed to allow the machine to make bags of various types and sizes from paper of various qualities and thicknesses. Data concerning the bag itself is stored in the memory of a first computer while data concerning the properties of the paper to be used is stored in the second computer. Both types of data are needed to precisely and automatically position the guide plates for properly locating the desired bends in the paper. The bag type and paper type can be changed quickly with little loss in production time.

Abstract: The invention is directed to a device for sidewise shifting and positioning of a tool in a slotting station situated within a machine used for processing sheet-like workpieces. The station includes a creasing tool, a counter tool, which are mounted on a first pair of vertical, arranged horizontally extending shafts, a slotting tool and counterpart, both fitted on a second pair of shafts arranged downstream of the first pair, a master plate being held in the transfer direction of the workpiece by two crosswise shafts, one of which is for guiding and the other is for shifting the master plate on the guiding shift, the plate having an arrangement for gripping each of the upper tools of the pairs of tools, which arrangement includes an arrangement for laterally shifting the arrangement for one of the two tools relative to the master plate while holding the tool simultaneously fully parallel to the master plate.

Abstract: The present invention relates to a folding device in a corrugated cardboard box making machine which is capable of adapting to a thickness of a corrugated cardboard sheet by regulating a space between a folding belt and an upper guide, and also capable of accurately making folding width of the corrugated cardboard sheet by regulating the position of a gauge belt. Having main transporting means for simultaneously positioning the folding belt, upper guide and gauge belt, the device is provided with an upper guide transporting means for independently regulating the position of the upper guide and a gauge belt transporting means for independently regulating the position of the gauge belt. The device is further provided with a control means for controlling the drive means and the gauge belt transporting of the upper guide transporting means.

Abstract: An apparatus for packaging stacks of paper has a suction plunger assembly which can be lowered to draw a box blank and a stack of paper thereon downwardly past the box folding element of a box folding claim of guide rods which are connected to the guide rods of the suction plunger assembly so that, upon adjustment of the format of the box folding assembly, the positions of the suction plunger will be automatically adjusted.

Abstract: The invention relates to a packaging apparatus designed so that a belt-like plastic film is placed over articles being transported on a conveyor, the article being wrapped in the film while the film being stretched widthwise, the film being cut between adjacent articles, the cut ends of the film being folded to and brought in adhesion to the underside of the article. A pair of chains run on both sides of a path of transport of the articles, each of the chains having a number of clamps. As the chains run, the clamps place the film over the articles while clamping both side edge portions and pulling them in the widthwise direction. The distance between the chains is adjustable; where a stretchable film having a high draw ratio is used, the interchain distance is broadened, whereas in the case of a heat-shrinkable film having a low draw ratio being used, the interchain distance is narrowed.

Abstract: A packing machine for American boxes comprising apparatus for supplying empty boxes, apparatus for supplying the contents of the box in batches, apparatus for transferring the batches and placing them in open boxes, and apparatus for discharging the boxes. The apparatus for supplying the empty boxes bears a magazine of folded box blanks and apparatus for opening and erecting the box and forming the bottom thereof.

Abstract: A carton loading machine has an endless carton conveyor which extends in a horizontal path which in plan view extends in a generally square configuration. A plurality of carton receptacles are mounted on the endless conveyor for movement therewith. Retainer bars are arranged opposite the open ends of the receptacles along at least three sides of the square configuration of the path and these retainer bars are mounted for simultaneous movement with respect to the receptacles so that the space between the retainer bar and the oppositely disposed wall of the receptacle can be adjusted to accommodate articles of different sizes. A further retainer bar is located below the open lower end of the receptacles and extends along at least two sides of the square configuration of the conveyor path. These second retainer bars are also simultaneously adjustable in height with respect to the receptacles so as to accommodate cartons of different length in the receptacles.

Abstract: A box making machine comprises a feed station, a positioning station, a printing station including four printing units, a cutting station with a creasing unit, a slotting unit and a cutting unit, a folding-gluing station and a stacking and delivery station, all driven by D.C. motors. The D.C. motors control is achieved by the electrical shaft coupling driven by a driving device which comprises a command control unit having a code generator, a synchronization circuit for each motor and a curved generator for one of the motors, a calculating unit including a microprocessor, input/output circuits and an input circuit with switches, a signal conditioning unit with an element for sense discrimination and multiplication, and a signal conditioner, and a command logic unit including a logic drive selection circuit, a logic starting circuit and a logic manual command circuit.

Abstract: The application discloses a gluing apparatus for an adjustable machine for manufacturing corrugated boxes of a plurality of sizes. The apparatus includes an automatic glue dispensing head for applying glue to a corrugated box blank. The dispensing head is operatively connected to a mechanism for indexing the dispensing head towards and away from a centerline of the box manufacturing machine. The indexing mechanism is driven by a means operatively connected to an adjustable assembly station on the box manufacturing machine. Adjustment of the assembly station to produce a preselected size box correspondingly indexes the glue head towards or away from the centerline to a predetermined direction and distance from the centerline of the machine to apply glue to the box blank.

Abstract: A gauging system for an envelope inserter provides simplified set up procedures for adjustment of a set of enclosure pick-up station side guides, an envelope stop and coordinated adjustment of both a set of envelope station side guides and sets of stripper fingers. A panel at the face of the inserter includes a slot and a pointer for lengthwise insertion of an enclosure. The operator places a specimen enclosure against an index end of the slot and rotates a knob to frame the enclosure length between the index and the pointer. Rotation of the knob provides simultaneous movement of the pointer and adjustment of the enclosure side guides to correspond with the framed length. A further slot and pointer are provided for envelope widthwise insertion. Rotation of its knob for framing the envelope width simultaneously adjusts the envelope stop. A further slot and pointer are provided for lengthwise envelope insertion.

Abstract: There is provided an improvement to the lock and/or release systems, associated in structure and operation to the rests of circular blades or creasers, for cutters or creasing machines to be used in the field of paper and cardboard manufacturing, comprising in a structural operative unit, which includes at least a rest co-operating with sliding and traverse means, guides for the traverse of each unit along a bearing beam, each unit comprising at least a circular blade or creaser and additionally including a lowering and lifting device for the blade or creaser and selective lock or release device for said rest on the beam, wherein the lowering and lifting device and lock or release device are coordinated and synchronized in such a way that the lowering and lifting movements coincide with the activation of the lock and, respectively, the release thereof.