Abstract: A machine for forming a container from a blank of sheet material is provided. The blank includes a reinforcing panel assembly for forming a reinforcing corner assembly. The machine includes a hopper station for storing the blank in a substantially flat configuration and a forming station for forming the blank into the container. The forming station includes an initial forming station that rotates a first portion of the reinforcing panel assembly with respect to a second portion of the reinforcing panel assembly, and a secondary forming station having male and female forming members with shapes corresponding to an interior shape and an exterior shape of the reinforcing corner assembly, respectively. The male and the female forming members are configured to form the reinforcing corner assembly by compressing together the first and second portions of the reinforcing panel assembly.

Abstract: Disclosed is a method for producing a board box by performing a box-making process of a corrugated board sheet which is formed to have dimensions of a plurality of board boxes wherein the yield of the board sheet and the production efficiency are enhanced and a countermeasure can be taken against paper powder.

Abstract: An apparatus for finishing products coming out from a folding and gluing machine of cardboard or paperboard products with a back, includes a longitudinal housing for advancing the products in rows, defined by two groups (40, 41) of circular motorized right and left belts. Each group (40, 41) being made of at least three belts. An upper belt (22, 24) and a lower belt (25, 27) are wrapped around pulleys with a horizontal axis and extending parallel to the direction of advancement of the products. A lateral belt (28, 29) is wrapped around pulleys with a vertical axis and extending parallel to the direction of advancement of the products. The belts of each group (40, 41) form among them respective “C”-shaped housing which make the lateral edges of the housing along and inside which the product advances, dragged by the belts.

Abstract: A folder gluer for conveying a cardboard sheet and folding up the cardboard sheet from a deployed state thereof is disclosed. The folder gluer comprises two flat belts including a first belt and a second belt arranged in parallel for conveying a cardboard sheet, two pulleys provided at a starting part or a terminal part in a conveying direction of the folder gluer for respectively driving the first and second flat belts by friction forces, two motors for respectively driving the pulley for the first belt and the pulley for the second belt, a sensor device for respectively detecting the speeds of the first belt and the second belt, and a control device for controlling at least one of the two motors such that a difference in the speeds of the first belt and the second belt detected by the sensor device becomes zero.

Abstract: A machine for intended use in feeding and completing a partially formed carton is disclosed. In one embodiment, the machine includes an overhead conveyor with selectively actuated, depending lugs that engage and convey the carton in a first direction while a first flap on a lid is folded and sealed. A takeaway conveyor includes selectively actuated, upstanding lugs that convey the carton in a second direction generally perpendicular to the first direction while second and third flaps are folded and sealed. The lugs on each conveyor may be closely spaced or overlapping to allow for selective actuation at a desired instant without the need for timing the corresponding chain or the carton feed to the machine. A diverter located at a transition between the forward and return runs of the overhead and takeaway conveyors actuates the lugs in a controlled fashion. Related methods of feeding and forming cartons are also disclosed.

Abstract: A machine for erecting a polygonal container from a knocked-down flat (KDF) container formed from a blank of sheet material is provided. The container includes four main side panels, at least one corner panel extending between two of the main side panels, and at least one bottom flap extending from one of the main side panels. The machine includes a body, a first erecting mechanism coupled to the body, and a second erecting mechanism coupled to the body. The first erecting mechanism receives the KDF container and erects the KDF container into a partially erected container having a substantially rectangular configuration, and the second erecting mechanism receives the partially erected container and erects the partially erected container from the substantially rectangular configuration into the polygonal container by applying a force to an exterior surface of the partially erected container to erect the polygonal container that has more than four sides.

Abstract: A machine for intended use in feeding and completing a partially formed carton is disclosed. In one embodiment, the machine includes an overhead conveyor with selectively actuated, depending lugs that engage and convey the carton in a first direction while a first flap on a lid is folded and sealed. A takeaway conveyor includes selectively actuated, upstanding lugs that convey the carton in a second direction generally perpendicular to the first direction while second and third flaps are folded and sealed. The lugs on each conveyor may be closely spaced or overlapping to allow for selective actuation at a desired instant without the need for timing the corresponding chain or the carton feed to the machine. A diverter located at a transition between the forward and return runs of the overhead and takeaway conveyors actuates the lugs in a controlled fashion. Related methods of feeding and forming cartons are also disclosed.

Abstract: A folding unit for corrugated cardboard sheets, the folding unit comprising an inlet and an outlet, a pair of parallel and laterally dispiaceable folding beams, a pair of folding rules arranged under respective folding beams, a par of folding rods fixedly positioned outside respective folding rules and at angle to the respective folding rules, a pair of folding belts arranged under and cooperating with a respective pair of folding rules, a means for supplying and folding two outermost panels of the corrugated cardboard sheet from 0°-90° at the inlet of the folding unit and 90°-180° at the outlet of the folding unit, a pair of wheel stands engaged with respective folding belts, a means for adjusting an angle of said wheel stands to ihe associated conveying belt, and a means for fine adjustment of the angular settings of the wheel stands.

Abstract: A folding station of a folding box gluing machine for processing a blank having a middle piece and side pieces which are attached to sides of the middle piece and which are deflected upward and inward along folding grooves between the middle piece and the side piece across a folding line toward the lengthwise middle of the blank and then folded up in order to produce a folding boxes, includes a folding strap that deflects the side pieces and folds them upward. The folding strap is guided by a folding shunt, a positioning roller, and one or more deflection and pressure rollers. A distance between the folding strap from the folding line of the blank is adjustable, such that the folding strap acts on an outer region of the side piece.

Abstract: Packaging machine and discharging device for a packaging machine, and a method for filling bags by means of a packaging machine, wherein a bag to be filled is filled by means of a filling element and the filled bags are taken off by means of a bag take-off device and transferred to a discharging device. The discharging device comprises a conveying device for conveying off the bags filled with bulk goods, wherein at least one monitoring device for monitoring the tightness of the filled bags is provided which is associated with the conveying device. Said monitoring device comprises a weight sensor which captures a measure for the bulk material escaping from a bag to determine a parameter for the bag leakiness.

Abstract: A station includes a magazine containing stacks of flat folded tubular blanks arranged horizontal. Each stack is supported by openable support pad pairs. A platform moves vertically below the magazine and receives, when set at a raised loading position, one stack released by opening a lowermost pad pair. The platform is subsequently lowered, together with the stack, to a waiting position. A withdrawing arm, mounted on a slide moving horizontally, has suction cups for picking up a blank from the stack on the platform, when the platform is temporarily raised and then lowered to the waiting position. After picking up a blank from the stack, the slide and arm take the blank to box forming means of the boxing machine. When the stack on the platform runs out, the magazine releases another stack, while the stacks remaining in the magazine fall down in a sequence to lower levels, due to opening of the pad pairs.

Abstract: A packaging container production method includes the steps of: folding a folding allowance formed along one edge of a blank, which is formed from a paper substrate and having a predetermined shape, to thereby form a seal allowance; and superposing the seal allowance and another edge of the blank on each other and longitudinally sealing the resultant overlap portion to thereby form a tubular body. In the folding step, the folding allowance is pressed against a running folding belt to thereby fold the folding allowance. Since the folding belt is used instead of a die in order to fold the folding allowance, even when the thickness, water content, hardness, and other properties of a paper substrate vary among the blanks, the folded state of the folding allowance can be stabilized through adjustment of the position of a pulley. Thus, the quality of packaging containers can be improved.

Abstract: A collapsible-box gluing machine for the production of collapsible boxes from blanks has a folding station for folding blanks, a subsequently arranged transfer station and a collecting and compression device, wherein the flat-lying folded collapsible boxes are pressed for the bonding of the adhesive. The transfer station has at least one pair of conveyor belts as a conveying device, which consists of a lower belt and an upper belt. In order to transfer the blanks with precisely positioned side flaps to the collecting and compression device, the transfer station has a variable ratio transmission to drive the upper conveyor belts at a higher speed than the lower conveyor belts.

Abstract: This retractable central conveyor (1) being used in a folder-gluer converting plate-like workpieces such as paper or cardboard for producing packagings. Such a folder-gluer comprises two frames between which are arranged two lateral conveyors (100, 110), the conveying means of which being belts (101, 111). The conveyor of the present invention comprises a structure consisting of four associated components (4, 5, 8, 11) which are transversely movable between the frames of the folder-gluer with respect to the travelling direction of said plate-like workpieces. Among these components of this structure, an upper longitudinal bar (4) can easily be manually lowered, in a vertical slanted movement, from a working position to a retracted position, and inversely raised by independent damping means (15).

Abstract: The base of the machine consists of three modular casings (1, 2, 3) which are aligned with one another and fixed together and inside which the synchronized systems for the various work stations are arranged. The frames of the parallel and vertical-axis belts (C1, C2) which are designed to convey the boxes (B) with a vertical arrangement are supported cantilever-fashion by the base casings, via upturned portal structures (6). The operating stations of the machine are supported by the frames of the belts or by the base casings, such that the box conveying line is free at the bottom so as to allow better cleaning and better inspection. The middle module (2) inserts the product (V) into the boxes.

Abstract: A box or carton sealer is disclosed having a frame with a conveyor for moving boxes therethrough. First and second longitudinal, laterally spaced-apart, independent gravity operated centering bars move inwardly and outwardly to center the boxes in the sealer. The centering force produced by the centering bars is proportional to the distance the box is off center in the sealer. A shiftable weight assists the respective centering bars to move laterally as required. A floating head has an inclined entry ramp for riding up over the box and lifting the floating head to a desired height as the box passes thereunder. The floating head has a sealing device for attaching the box flaps at whatever height the flaps happen to be at under the floating head.

Abstract: A machine for folding materials is disclosed in which the portion of the material is engaged and folded by a rotary cam such that the surface of the portion is engaged and not the edges of the portion. In the preferred embodiment, creasing rollers are positioned along the fold line above the rotary cam folders such that the fold is made very accurately.

Abstract: The present invention relates to a folding machine for folding the side flaps flanking the middle section of a foldable cardboard blank. For this purpose in the frontal area of the folding machine auxiliary folding devices are arranged. In addition turning belts for the inward tilting of the side flaps can be arranged, which are provided with projections insuring that the side flaps are swung parallelly to their folding grooves.

Abstract: The device for turning a front panel of a platelike workpiece within a folder-gluer comprises a retaining plate 20 extending across and somewhat above the traveling plane of the workpiece and a series of lifting fingers 30 positioned transversely below the travelling plane and somewhat upstream of the retaining plate 20. The lifting fingers are actuated by a piston from a resting position below the travelling plane to a raised slanted raised position, at the arrival of the blank's front panel. The front panel includes a partially separated flap that must be parted. The device also comprises at least one pusher 40 that is substantially perpendicular to the plate 20, the pusher 40 being actuated by an actuator 44 in order to separate the flap when the panel reaches maximum height against the plate 20.

Abstract: A vastly improved folder/gluer is disclosed. This folder/gluer: is much more reliable, produces better folds, runs faster, and can be modified much easier, than prior art folder/gluers. These features are achieved by using a vacuum conveyor with overhead folding elements. Furthermore, the top of the article to be folded is never touched by another conveyor.

Abstract: A tray forming apparatus and method are provided which advantageously increase the efficiency and production speed of tray-type containers formed thereby. The apparatus preferably includes a loader for loading one of a plurality of blanks to be transported along a predetermined path of travel and front and rear panel lifters positioned downstream from the loader for foldingly lifting front and rear panels of the one blank upwardly and inwardly during travel along the predetermined path. Adhesive applicators preferably are positioned adjacent the folders for applying adhesive only to selected portions of the folded front and rear panels of the one blank. Side panel folders are positioned downstream from the front and rear panel folders and the adhesive applicators for folding side panels of the one blank upwardly and inwardly into abutting contact with the selected portions of the folded front and rear panels having adhesive applied thereto.

Abstract: An apparatus for periodically feeding a packaging machine with semi-finished packages formed from flat blanks (2), provided with a magazine (6) for storing such blanks (2), a feed path (11) extending in a feed plane (13) with a pair of feed dogs (16), spaced from each other at a distance corresponding to the size of the blank (B), periodically entering the feed path. In cooperation with a transfer apparatus (24-34) reciprocally moving in the feed direction (A) the pair of feed dogs (16) shapes a blank (2) withdrawn from the magazine (6) to a semi-finished package suitable for being filled, and then feeds the semi-finished package to stations in the packaging machine where it is filled and completed. To prevent faulty transfers or deposits, the blanks (2) are stored within their magazine (6) in an upright orientation such that those blank sections (B,F) first entering into the feed path (11) extend above the feed plane (13).

Abstract: A device for folding flat die-cuts through 180.degree. has a flipper of which the movement is guided by linkages composed of at least two rectilinear slots, occupying a common plane and compassing an acute angle, and at least two slides free to traverse along the two slots. The flipper is connected pivotably to the slides, and the folding action is generated by a single linear actuator stroking in a direction substantially parallel to one of the slots, its rod end being hinged to the respective slide.

Abstract: A device and method for forming a pocketed card stock or paper member having a wide peripheral edge. A template (12) is provided having a forming edge with a shape corresponding to the wide peripheral edge of the member. A flexible sheet of card stock or paper (14) is also provided. An urging device (62) is provided for urging the flexible sheet of card stock or paper (14) adjacent to the template (12) such that an extended portion (54) thereof extends beyond the forming edge of the template (12) and a remaining portion thereof does not extend beyond the forming edge of the template (12). A folding device (26) is provided for urging the extended portion (54) around the forming edge and a securing device (24) is provided for securing the extended portion (54) to the remaining portion of the flexible sheet of card stock or paper (14) after the extended portion (54) has been urged around the forming edge to form a wide edge.

Abstract: A packaging machine for manufacturing packaging containers for liquid contents, e.g., milk or juice, from tubular packaging container blanks of laminated paper and plastic material. The blanks are fed through the machine by means of a main conveyor along which is disposed various stations for performing operations such as sealing the bottom ends of the blanks to form bottom-sealed packaging containers, filling the bottom-sealed packaging containers, and top-sealing the filled containers. A station can also be provided to transfer blanks from an infeed conveyor located below the main convey to the main conveyor. The stations are jointly controlled but individually driven and replaceable, which makes for a flexible and compact machine.

Abstract: Process for erecting a folding carton from a single-piece board blank which has a base surface, to which side panels are hinged along folding lines, and a front and back panel, where flaps are provided on the side panels that are folded into the area of the front and back panels, and where at least sections of the blanks are coated with a sealable plastic. First of all the two side panels are erected by pressing the board blank into a U-shaped female tool. Rotating lugs fold in the flaps; the back and front panels are heated up to such an extent that the plastic coating is sealable, after which the back panel and the front panel and the flaps are pressed against each other and are sealed together.

Abstract: A method of and apparatus for the production of packages each comprising a unit of product having opposite ends and a wrapper wrapped around the unit, the wrapper being wider than the length of the unit from end-to-end and initially extending outwardly beyond the ends of the unit, each end of the wrapper being folded over on said end of the product to form four closure flaps overlying said end, a first flap constituting a first side flap, a second flap constituting a first end flap, a third flap constituting a second end flap, and a fourth flap constituting a second side flap, the method of folding over the second end flap, wherein packages are fed forward one after another with the ends of the wrapper extending laterally outwardly at opposite sides of their path of travel, and the second end flaps are folded over at both ends of the package by flexible folding members which are brought into engagement with the trailing side of the trailing portion of each extending end of the wrapper and moved forward at hig

Abstract: Knocked down boxes made of corrugated paperboard are slit longitudinally in an on-line process directly downstream from the folder/gluer in which the boxes are formed. The boxes are first reoriented 90.degree. in a horizontal plane from the positions in which they are formed in the folder/gluer to a reoriented position for movement in a direction transverse to the box fold lines, the boxes are formed into a shingle in the direction of movement, and the shingle is conveyed in that direction into an alignment station. In the alignment station, the lateral edges of the boxes in the shingle are aligned vertically, while the shingle moves through the alignment station, by shifting the boxes transversely to the direction of movement.

Abstract: A carton folding apparatus which is characterized by multiple folder/gluer modules, including a feed module for receiving and delivering unfolded cartons, prefold/fold, fold and final fold modules for effecting specified folding and gluing operations, a delivery module for completing the folding operations and further including a stacker unit for receiving and stacking the folded and glued cartons. Each of the folder/gluer modules is capable of being removed from the apparatus line and is characterized by separate, independently driven upper and lower belt feed mechanisms for driving the cartons through that module.

Abstract: Apparatus is provided for erecting tubular carton blanks from a flattened to an open tubular state and includes two blank erection stations positioned sequentially along a conveyor for conveying a succession of blanks to the stations. In each station a suction head is attached to a blank and moves the blank through a cycle from a blank collection position, through a blank lifting phase, then through a blank erecting phase in which the blank is pressed against an abutment member into force the blank to an erected condition. When the suction head reaches a blank releasing position, suction head is returned. The suction heads are carried by a link arm driven in a parallel movement by cams via pivot arms.

Abstract: A method is disclosed for erecting flat carton blanks into a tubular configuration, folding the minor flaps inwardly normal to the minor sides in three steps at a first work station, moving the erected carton blank to a second work station while partially folding the major flaps toward the folded minor flaps and applying glue to the minor flaps, further moving the carton blank to a third work station where the major flaps are pressure sealed to minor flaps and then discharging the finished carton from the work area. A machine for performing the method includes unique motor driven chain drive assemblies that enable adjustments to accommodate various size carton and a cam regulated valve system to control application of vacuum to suction cups and compressed air to a glue gun and to pneumatic pistons that move control arms and the like.

Abstract: In a folder gluer collapsable box making machine, a self-driven endless chain is mounted on sprockets on a small frame and is equipped with push plates and lifters such that when pre-cut box board moves along the conveyor of a box-making machine, the front of the pre-cut box board hits a pusher and moves the chain in a forward direction while the folder lifter arm abuts the rear portion of the box board and folds over the rear ends and/or flaps.

Abstract: An aligning device including an upward straightening appliance consisting of a row of levers equipped with rollers, said levers being mounted for pivoting around a horizontal axis relative to a base member, said base member being mounted for pivotable movement around a vertical axis on a longitudinally extending member, each of the base members being connected by a flexible member to a corner piece shiftable relative to the longitudinally extending member to cause pivoting of all of the base members around their vertical axes, a lower straightening appliance consisting of a driven endless belt supported on rollers arranged vertically aligned to the axes of the upper rollers, an arrangement for biasing the upper rollers against a blank carried on said belt and a lengthwise aligning rail adjustably positioned relative to the upper and lower straightening appliances.

Abstract: A method and apparatus for the manufacture of folded paper boxes with a hemmed seal. One of two edges to be overlapped is skived and folded into a hem. After the edges are locally heated, blanks move individually and successfully along a conveyor for folding and sealing. Just before sealing, the hemmed edge passes between a hem holder and the conveyor to maintain the hemmed edge. The hem holder is heated to prevent the edges from cooling. In one embodiment hot air directed onto the hem from the hem holder forms an air cushion between the hem and the hem holder thereby to minimize any contact between the hem holder and the blank.

Abstract: A machine or machine section for squaring folded container blanks has a conveyor for conveying slotted and partially folded container blanks. A folding device completes folding of each container blank while being conveyed by the conveyor. A gauge plate is inserted in a slot in each of the slotted and partially folded container blanks. A mechanism moves the gauge plate in timed sequence with the conveyor, inserts the gauge plate in the slot before completion of folding of the respective blank in order to "square" the folded blank, and then withdraws the gauge plate from the slot. Overlapping flaps of each folded blank may be tacked together during "squaring" by drops of hot melt adhesive which subsequently hold the flat folded blanks square while the conventional slow drying water soluble glue dries. The "squaring" arrangement may be incorporated in a conventional gluer/folder machine.

Abstract: The invention relates to a multiple pot comprising individual pots interconnected by connector portions so as to be capable of being pulled out. The multiple pot is used to raise and transplant seedlings of plants. The invention also relates to a method of fabricating the pot. The pot is designed especially to promote growth of roots across the side walls of the individual pots after transplantation. Also, the resistance encountered when the multiple pot is unfolded is reduced. Further, the individual pots are uniform in size. These feature arise from the facts that the connector portions are formed by applying a waterproof paste discontinuously and that a water-soluble paste is not applied around the edges of the individual pots created when the multiple pot is unfolded. Hence, a coating of the paste is formed in none of these portions. The multiple pot is fabricated by continuously carrying out three steps.

Abstract: In a folder gluer collapsable box making machine, a self-driven endless chain is mounted on sprockets on a small frame and is equipped with push plates and lifters such that when pre-cut box board moves along the conveyor of a box-making machine, the front of the pre-cut box board hits a pusher and moves the chain in a forward direction while the folder lifter arms abuts the rear portion of the box board and folds over the rear ends and/or flaps.

Abstract: Apparatus for removing defective knocked down carton blanks, from a carton erecting machine. In one embodiment opposed sets of tractors for clamping the selected unit and driving it from the conveyor line with moving tractive belts. A sensing device detects carton blanks to be ejected by determining if they can be erected by the machine. Non-conforming blanks are returned to an unerected condition and a control device activated by the sensing device controls activation of the ejecting mechanism to quickly and automatically eject the defective carton blank.

Abstract: A vari-gap drive system for controlling the speed of the drive system used in the fabrication of corrugated boxes which varies the drive rate for a folder vis-a-vis that of the printer/slotter to which it is attached to vary the box blank gap through the folder and thus permit a throughout two to three times faster than that attainable when the drive for the two units are driven at the same speed. The reliability and speed of the subject Vari-Gap Drive System is in part derived from a unique cage roll assembly.

Abstract: A machine for feeding a collapsed beverage can carrier sleeve to a flight bar conveyor and introducing the sleeve in fully open condition to the pocket of the conveyor. After leaving the feed rolls the collapsed carrier sleeve is moved through a fixed guide by lugs on a movable chain. The end flaps on the upwardly facing side panel are held in place on the guide while the end flaps on the downwardly facing side panel are moved downwardly by a fixed cam surface. The substantially opened sleeve is then either given a final kick by rotating arms or is propelled by the feed lugs to accelerate it into the pocket while at the same time fully straightening and opening the sleeve. The carton dimension corresponding to the length of the pocket is the same as the length of the pocket, resulting in more pockets per conveyor length and permitting operation at slower conveyor speeds.

Abstract: An anti-toggling, constant-contact cage roll assembly is provided for movement of corrugated box blanks along a belt. In one embodiment, the cage roll assembly includes a series of four rollers that are mounted to a bar spring-biased away from a frame, in which the bar is pivotally mounted at each end to an associated lever arm, each of which is in turn pivotally mounted to the frame to form a modified four-bar linkage, with a compliant mount for one lever arm, the mount for the other lever arm being fixed to the frame to permit limited canting of the roller-carrying bar to accommodate multiple folded layers of corrugated material. The subject cage roll assembly prevents the prior art type of toggling of pairs of rollers into an almost vertical position as the box blank moves between the rollers and the belt and thus prevents jamming. In one embodiment, each of the lever arms carries an adjustable stop at the free end for positioning the bar above the belt which carries the box blank.

Abstract: The invention relates to apparatus for supplying wrapping elements (2, 57) comprising elongate portions of card (2) having a series of zones (6, 7, 8, 9), separated by transverse creases (a, b), and flaps (10) defined by creases (c) disposed longitudinally to the card (2). The apparatus comprises a first mechanism (14) and a second mechanism (50) for continuously transfering the pieces of card (2) which are orientated transversely to the path of the first mechanism and longitudinally with respect to the path of the second mechanism. The apparatus also comprises folding elements (42, 43, 46, 47, 55, 56) located along the paths of the two transfer mechanisms (14, 50) arranged to fold the zones (6, 7, 8, 9) and flaps (10) about the creases defining them out of a planar condition and subsequently to fold them back to cause them to return to the original coplanar condition. The pre-creased blanks so formed can be readily wrapped by conventional wrapping machines round soft articles (68) e.g.

Abstract: A rectangular tray-type carton formed from a blank of plastics-coated board has a peripheral flange for attachment of a closure lid. The flange is formed after the erection of the carton side wall in a punch and die arrangement, by folding down elongate panels carried along the free edges of the side wall and by subsequently joining the panels together at their ends by means of overlapping tabs which are heat-sealed together. In order to avoid damage to the tabs during formation of the side wall the uppermost tabs are folded out of the plane of the blank before it enters the punch and die arrangement.

Abstract: A transfer system for use in machinery having stations for forming, filling and sealing cartons. The transfer system includes a turret having a hub and a number of spaced radial mandrels received by carton blanks, for use in forming the carton. A main conveyor conveys formed cartons to filling and sealing stations of the machinery. The transfer system includes a transfer conveyor, disposed between the turret and the main conveyor, which receives formed cartons one at a time, from the turret and holds at least one of the formed cartons in alignment with the main conveyor. The transfer system also includes mechanisms for stripping cartons, one at a time, from the mandrels and for transferring a plurality of cartons simultaneously to the main conveyor. A method of transferring cartons from an indexing turret to an indexing main conveyor using an indexing transfer conveyor, is also disclosed.

Abstract: A right angle folder gluer of the type having a pair of pressure nip rolls at the end of the first folding section and mechanism for transferring each individual and successive blank delivered from the nip into the transfer zone at right angles into the second folding zone, in a direction parallel to the axis of the nip has apparatus for preventing inadvertent re-entry of the blank into the nip during transfer in the form of sharp pointers riding on the upper surface of the blank in rear of the nip to slightly embed therein and unyieldably prevent re-entry while yieldably enabling movement of the blank in the transfer zone in the direction of the second folding section.

Abstract: A corrugated box machine having improved delivery means is disclosed. A conveyor belt assembly works in combination with tensioning apparatus, a support bracket assembly and an idler guide assembly.

Abstract: Pieces of tube are produced from a flat flexible web by feeding the web intermittently into apparatus which first makes transverse incisions from each edge partly across the web at a spacing equal to the desired tube lengths. The side portions between the incisions are then folded along longitudinal fold lines so that their end edges overlap and are welded together. In a subsequent operation, the non-incised central flat portion of the web is severed in line with the incisions and the tube elements thus formed are then moved transversely to the direction of web movement by a reciprocating slide to stand upright on tube-shaping members.

Abstract: In folding boxes forming a conveyor chain, rectangular, tubular carton blanks are introduced stepwise into two juxtaposed mirror-image designed folding stations. In the folding stations, the carton blanks are defomed by means of fingers and clamps so that their base surface is pulled into a parallelogram. The two edges forming the longer diagonal are pressed by means of stamping dies and by means of a counterholder and a stamping plate, respectively. After pressing, the carton blanks are pulled back into the folding boxes and are returned to their rectangular shape.

Abstract: A single to dual indexing carton transfer mechanism involving a turret and conveyor, wherein the turret includes equally spaced mandrels which index at a first predetermined rate, and wherein the conveyor indexes at one-half the rate of the mandrels. Partially formed paperboard cartons are stripped from the respective mandrels as the latter index to their 6:00 o'clock position, and set on a stationary rail. A pusher mechanism is cammed to alternately transfer odd numbered cartons to the conveyor during the latter's dwell period, and even numbered cartons to the conveyor while it is indexing, thereby increasing the production rate along a single conveyor line.