Abstract: The present invention relates to a method for providing a product viewing window in a container. The container has at least a body ply and a liner ply, wherein the body ply has at least one aperture therethrough. The liner ply is adhered across the aperture, forming a window into the container. A window-finishing machine that comprises at least two platens and, optionally, a machine pocket positioned between them, a heating element extending through at least one of the platens, and a pressurized air device engages a container. The heating element heats the window of the container to the desired temperature, pressurized air is injected into the container such that the window is forced at least partially through the aperture of the container (and optionally into contact with the machine pocket wall), and the container window is then cooled to the desired temperature.

Abstract: A method of making a paper straw with a bend includes coating a strip of paper with polyethylene on a first side and a second side of the strip of paper; cutting the strip of paper to a desired length; providing a spring apparatus of a predetermined length; rolling the strip of paper around the spring apparatus such that the strip of paper partially overlaps with itself to form a straw, the polyethylene holding the strip of paper in a rolled position; applying steam to the straw; and bending the straw to create a bend, the straw remains bent; and removing the spring apparatus from the straw.

Abstract: An apparatus for cutting tubular members includes a support structure, a control system, a cutting station, a guide and an extracting assembly. The cutting station includes a first wheel having at least one cutting member located on the circumference of the first wheel and a second wheel having at least one projection located on the circumference of the second wheel. The extracting assembly has a cylindrical member with a first end and a second end. The cylindrical member also includes a pair of grooves extending along a portion of the interior thereof. The grooves decrease in height and depth from the first interior section to the third interior section.

Abstract: A holder for a food product includes three rectangular shaped sidewalls which are interconnected to establish a triangular tube-like structure with an enclosed space for receiving a portion of the food product therein. A score line is formed on a selected sidewall to create an integral hinge which allows for an operational reconfiguration of the holder to support the food product while the food product is being consumed.

Abstract: The invention relates to a device for forming sleeve-like foil envelopes from a flat strip of foil material (12), at least comprising supply means (10) for supplying the flat strip of foil material; cutting means (20) for cutting the strip of foil material through over the entire width thereof so as to obtain a foil envelope strip of a specific length having a first and a second free edge (120a, 120b); at least one enveloping unit, around which the foil envelope strip is to be wrapped; joining means disposed near said enveloping unit for joining said first and said second free edge together, so as to obtain a sleeve-like foil envelope; as well as discharge means for discharging the sleeve-like foil envelope thus formed from the enveloping unit.

Abstract: A mandrel assembly for use in shrink sleeve labeler machines includes a replaceable insert having a cutting slot that is spaced apart from both upper and lower elements of the mandrel assembly.

Abstract: A container of a flexible material web of weldable plastic. A reinforcing element is attached on the exterior of a wall of the container. The container may be formed by drawing a flat material web of weldable plastic material over a core tube and welding a longitudinal seam for closing the flat material web to form a tube. A reinforcing element is welded on an exterior of the tube while employing the core tube as an internal cooperating support. The tube is divided and separated along transverse seams into cut-off containers to form the containers. A dispensing system for flowable products includes at least one of the containers and a dispenser provided with a container receiving device for holding the container without closure. The container is formed with sliding guide and a displaceable closure, which is preferably opened when the container is placed on the receiving device.

Abstract: An apparatus for manufacturing a paper tube having a polygonal cross section includes a frame, an elongate core assembly having an end rotatably supported to the frame and the other free end and having an outer peripheral surface of a predetermined polygonal shape, and a delivery member installed to the core assembly for at least a portion of the delivery member to be exposed from the outer peripheral surface of the core assembly on which the strips are wound, the delivery member being installed for the exposed portion to move toward the free end of the core assembly after receiving the power, whereby the exposed portion contacts with an inner surface of the lowermost one of a plurality of the strips and thus a plurality of the strips wound on the core assembly continuously move toward the free end of the core assembly.

Abstract: The machine for producing tubes includes a winding spindle around which strips of weblike material are wound to form the tube, which is made to advance along the spindle; a device for supply and winding of the strips around the spindle, and at least one knife for cutting lengths of the tube being formed. The knife is provided with a reciprocating movement parallel to the spindle. There is moreover envisaged a counter-knife within the tube being formed, provided with a movement of translation synchronized to the movement of translation of the knife. The counter-knife is magnetically constrained to a mover member, which transmits the motion to the counter-knife.

Abstract: A bumper pad for use in cushioning and protecting packaged articles is provided. The bumper pad is made primarily from paper and comprises an arced top member glued or otherwise affixed to a flat base along longitudinal edges. The bumper pad can be placed around the packaged article between the article and the outer packaging, which can be a cardboard sleeve, stretch wrap film or other packaging material. The arced top member preferably is formed using a linear draw process.

Abstract: The machine for producing tubes includes a winding spindle, around which strips of weblike material are wound to form the tube, which is made to advance along the spindle; a device for supply and winding of the strips around the spindle, and at least one knife for cutting lengths of the tube being formed. The knife is provided with a reciprocating movement parallel to the spindle. There is moreover envisaged a counter-knife within the tube being formed, provided with a movement of translation synchronized to the movement of translation of the knife. The counter-knife is magnetically constrained to a mover member, which transmits the motion to the counter-knife.

Abstract: The machine includes a spindle; a winding unit, cooperating with the spindle to wind one or more strips of web material about the spindle and form a tubular element; and a cutting unit with at least one discoidal cutting tool to divide the tubular element into tubes of a length which can be predetermined. At least one pressure element is associated with the cutting tool to compress the tubular element between the spindle and the pressure element adjacent to the cut performed by the cutting tool.

Abstract: The machine includes a forming spindle around which one or more strips of web material are wound; a winding unit to wind the strips of web material around the forming spindle and form therewith a tubular article; and a cutting unit to cut the tubular article into single tubes. The machine also includes at least one magnetic device to support the forming spindle to reduce the flexural deformations thereof.

Abstract: The machine comprises a mandrel (4), a winding member (7) to helically wind said strips of web material about said mandrel and form a continuous tube; and rotating disk-shaped cutter (25), cooperating with said mandrel (4), to cut the continuous tube (T) into individual tubular products (M). The disk-shaped cutter (25) is carried by a rotating arm (23).

Abstract: A paper, board or material web is wound in a winder of the two-drum type. Winding core (10) ends placed against each other are coupled to be on the same axis of rotation during winding by severing cuts (12U, 12N) which are formed in the ends (11A, 11B) of the winding cores (10) and which deviate from a perpendicular cutting line.

Abstract: A plant for manufacturing and packaging tubes feeds the tubes via a conveyor belt to a packaging station, where they are packaged to form larger units. The foil strip is a dual or multiple-strip, cut by at least one partitioning blade into individual webs respectively welded in parallel planes to form endless tubes and cut by transverse cutters. The tubular bodies are assembled into a larger transfer group and jointly transferred to a turn table including a corresponding number of mandrels. The turn table conveys them jointly and stepwise to stations for fitting the shoulder portion with a threaded neck and the closure cap. The finished tubes are deposited on a discharge belt and fed to control regions for checking. Flawless tubes are received by the discharge belt and fed continuously to a tray.

Abstract: An apparatus and method are provided for enwrapping a horizontally oriented product in a sleeve. A sleeve is formed by opening a flat tubular film and cutting a selected length of tubing. The sleeve is further opened in a forming tube to a cross sectional shape comparable with the cross sectional shape of the product. The forming tube is moved from a receiving position to a discharge position and the sleeve is moved in a horizontal plane to enclose the axially aligned product carried on a horizontally oriented conveyor.

Abstract: Protective bags made of a plastic film have heretofore been produced by folding two pieces of films by hand, and it is very difficult to mass-produce asymmetrical bags at a low cost. Protective bags made of a film bearing any design are now continuously produced at high speeds by using a film tube blank, inserting a floating separator in the film tube blank, forming openings with symmetrical or asymmetrical continuous or discrete cut lines in the upper and lower surfaces or in both side surfaces in a state where motion of the film tube blank is stopped, depending upon the length of the bag, and cutting the film tube blank at the melt-adhered portion using a cutting edge extending in the direction of width.

Abstract: An apparatus is arranged to successively make plastic bags each of which includes two layers of panel portion superposed to define aligned top edges, first and second side edges and bottom edges. The plastic bag further includes a first side gusset portion disposed between and extending along the first side edges, a second side gusset portion disposed between and extending along the second side edges, and a bottom gusset portion disposed between and extending along the bottom edges. The apparatus comprises feeding means for feeding a main material intermittently for a length along a feeding path. The main material comprises the layers of panel portion and the first and second side gusset portions continuing longitudinally thereof respectively, the feeding means feeding the main material longitudinally of the layers of panel portion and the first and second side gusset portions.

Abstract: The invention relates to a machine for fitting sleeves of heat-shrink plastics material on objects, the sleeves being taken from a continuous sheath that is rolled flat. In the invention, a horizontal shaping mandrel (40) is provided that comprises two torpedoes (41, 42) in axial alignment and interconnected by a thread-like central element (43), the two torpedoes having facing ends (45, 46) each with a pair of smooth chamfers, and each torpedo resting freely on an associated V support (60). The sheath drive means comprises two adjacent pinch wheels (25, 26) disposed symmetrically on either side of the thread-like element (43) between the two V-supports (60) and passing in the vicinity of the pairs of smooth chamfers of the torpedoes (41, 42), each wheel (25, 26) having a peripheral groove (65, 66) that is complementary to the groove of the other wheel so as to form a horizontal axis passage for said thread-like element.

Abstract: A process for bag manufacture of a bag having a first dimension from a sealed bottom of the bag to an open top of the bag, the bag being fabricated from a continuous tube of plastic film bag material. The process includes the steps of providing a continuous tube of plastic film bag material. The side edges of the bat material are folded between a front bag panel and a rear bag panel to form gussets. A sealing station having apparatus for placing two parallel and spaced apart seals and a knife for cutting the continuous tube of the plastic film bag material between the two parallel and spaced apart seals; First adjacent double seals are formed across the front bag panel and the rear bag panel, the double seals in parallel side-by-side relation with one another with the plastic film bag material there between. The continuous tube of plastic film bag material is at least twice the first dimension from the sealed bottom of the bag to the open top of the bag.

Abstract: A sleeve label is fabricated from a sheet of polymeric material which is folded upon itself along at least three longitudinal fold lines, with the resulting four overlying layers then being joined together along a longitudinal seal line. The two outermost layers are longitudinally slit along the third fold line. The resulting structure forms a closed tube formed by the first two overlying layers, and two overlying separate flaps formed by the two outermost layers. By adding additional fold lines and additional slits, additional separate flaps can be formed to result in a structure in the nature of a multi-paged booklet.

Abstract: A method of producing a rectangular cross-section cardboard tubing by passing a plurality of cardboard strips having a thermoplastic coating thereon through a heating unit so as to hear the plurality of strips and melt the thermoplastic coating. Thereafter, the plurality of heated strips are passed through a guiding unit so as to align the strips in an overlapped configuration. The aligned plurality of strips are wound around an elongated, rectangular cross-section, rotating core so as to place the plurality of strips in an overlapped, spiral configuration along the core and form a tubing. The tubing is fed along the core, and a cutting unit cuts the tubing into lengths.

Abstract: Clamps for a separating portion of a roll processing line are provided. The clamps include a pair of flattened cylinders which contact the roll to be separated.

Abstract: Spirally-wound circular side walls may be re-formed into non-circular geometries which are then mechanically joined to conformably shaped non-circular closure disks and thereby produce non-circular two-piece paperboard container lids.

Abstract: A machine for producing tubes by winding into a spiral two or more overlapping and staggered strips of a ribbon-shaped material on a spindle, having a winding unit which winds into a spiral two or more overlapping and staggered strips of a ribbon-shaped material on the spindle and causes the tube formed from the material to advance continuously, and a cutting unit fitted with rotating tube cutters and provided with a reciprocating motion along the direction of advance of the tube to cut the tube into sections of predetermined length during the advance of the tube. The cutting unit is associated with members for driving the rotating cutters, which impart to the rotating cutters a rotary motion derived from the reciprocating motion of the cutting unit.

Abstract: A paint roller having a tubular core formed of thermoplastic material. The thermoplastic material being in the form of a multiplicity of spirally wound plies. The multiplicity of plies comprising an outer ply surrounding and in continuous contact with an inner ply. The plies are in general parallelism with one another and fused to one another in the absence of adhesive. A fabric cover overlies the core and is heat fused to the underlying core in the absence of adhesive.

Abstract: A system of forming a coreless roll paper product in which an elongated coreless paper roll is cut into segments by a saw. Prior to being cut from the elongated coreless paper roll, each roll segment is positioned on a support shaft located on a rotatable turret. The roll segment is severed while being supported by both an elongated mandrel and the support shaft, the blade passing through a space between the mandrel and support shaft. The turret has a number of spaced support shafts projecting therefrom, and rotation of the turret simultaneously brings the support shafts to various locations so that various steps in the operation are performed seriatim and simultaneously.

Abstract: A coreless roll paper product is formed by a method which includes removing an elongated coreless paper roll from the end of a forming mandrel in intermittent steps and cutting the elongated coreless paper roll seriatim into coreless roll product segments with a saw blade located immediately adjacent to the mandrel end.

Abstract: A tube positioning apparatus has at least one mandrel for positioning tubes for processing. A variable tube positioning stroke length is facilitated for optimizing stroke length and for optimizing the time required to position and process tube, such as by cutting. The tube positioning apparatus comprises a slide block having a mandrel attached thereto. The slide block is actuated on a plurality of slide rails from a first position to a second position. In the first position, the mandrel is retracted and in a second position the mandrel is extended for access by processing tools, such as circular knives for cutting the tube into desired lengths. A programmable sequence timer is provided for establishing desired time intervals during which the slide block and attached mandrel are in the retracted position or the extended position.

Abstract: Apparatus and method of truncating a tube by having a knife act against a counter-knife which is positioned within the interior of the tube. The counter-knife is maintained in a desired position with respect to the knife by a magnetic apparatus.

Abstract: In apparatus for forming cut lengths of tube by winding one or more strips of material into a continuously advancing spiral wound tube and periodically cutting off lengths of the tube, lengths of tube containing splices present in the strips are rejected at a rejection point downstream from the cut-off point by monitoring the strips for splices prior to winding, waiting until enough strip has passed the splice monitoring point to extend from the splice monitoring point to the rejection point, and rejecting the length of tube at the rejection point when that amount of strip has passed the splice monitoring point.

Abstract: Drinking straws are dispensed by providing an endless, substantially flattened flexible tube having a free end, cutting the free end of the tube to a desired length and opening the tube at its free end into a hollow tube. A refill cartridge is provided for this dispensing method which includes a substantially endless, substantially flattened flexible tube wound in substantially spiral form. The cartridge may comprise a spindle disposed at the center of the spirally wound tube, whereby the tube may be unwound from the outside of the spiral form, or the cartridge may include a cylindrical sleeve disposed around the outside circumference of the spirally wound tube, whereby the tube may be unwound from the inside of the spiral form.

Abstract: The invention relates to a device for truncating tubes, comprising at least one knife, which cooperates at the end of the cut with a counter-knife positioned within the tube to be truncated and which is connected mechanically to a core of strong magnetic permeability. In one embodiment, a winding is wound in a framework around the tube to be truncated, to create a magnetic field in the core through the tube to be truncated so as to be able to act magnetically on the longitudinal position of the core and thus on that of the counter-knife. At least one pair of tubular sleeves are fitted at each of the ends of the framework and are formed of a material of strong magnetic permeability, to direct and form the lines of induction. In another embodiment, the winding is arranged around a core which is fixed with respect to said winding and whose axis is positioned parallel and at a distance from the longitudinal axis of the tube to be truncated.

Abstract: In apparatus for forming cut lengths of tube by winding one or more strips of material into a continuously advancing spiral wound tube and periodically cutting off lengths of the tube, lengths of tube containing splices present in the strips are rejected at a rejection point downstream from the cut-off point by monitoring the strips for splices prior to winding, waiting until enough strip has passed the splice monitoring point to extend from the splice monitoring point to the rejection point, and rejecting the length of tube at the rejection point when that amount of strip has passed the splice monitoring point.

Abstract: The production or treatment of articles, particularly cylindrical support cops, involves the transportation of the articles between an upstream station and a downstream station, with the speed of supply of the articles from the upstream station being greater than the speed of operation of the downstream station. This is overcome by the provision of a plurality of the downstream stations. Provided between the upstream station and the plurality of downstream stations is an article distributing system operable to distribute the articles to any of the plurality of downstream stations. The distributing system is operated to selectively distribute the articles to the plurality of downstream stations as a function of the operating conditions thereof.

Abstract: A tube supported on a rotating mandrel is cut by a pair of cutter blades spaced apart a distance corresponding substantially to the diameter of the mandrel and which are moved simultaneously in a direction toward the mandrel and transversely of its axis of rotation a distance sufficient to enable the cutters to engage the tube at circumferentially spaced zones and sever the wall of the tube. The cutters move along a path that is tangential, rather than radial, relative to the mandrel.

Abstract: An apparatus and method of truncating a tube by having a knife act against a counter-knife which is positioned within the interior of the tube. The counter-knife is maintained in a desired position with respect to the knife by a magnetic apparatus.

Abstract: An applicator for tampons has a sleeve for the tampon and for a portion of a reciprocable pusher which can expel the tampon by causing the latter to flex outwardly a set of domed petals at the front end of the sleeve. The sleeve is formed by advancing a strip of degradable material longitudinally, by forming spaced-apart portions of the strip with transversely extending rows of hourglass-shaped webs, by converting the strip into a tubular envelope with a seam extending in parallelism with the axis of the envelope, by severing the envelope across the rows of webs so that the envelope yields a series of tubes each having a circumferentially extending set of petals (halves of webs) at each of its ends, and by cutting each tube midway between its ends to form shorter tubes (sleeves) each of which has a set of petals at one end. The petals are thereupon domed to close the respective ends of the sleeves and the other ends of the sleeves are formed with indentations which center the respective pushers.

Abstract: A self-raising post of a plastic material, such as PVC, for use as a roadside marking post, a traffic sign post, a lamp post, or for other comparable uses in road traffic environments, has a channel-shaped bending zone with substantially arcuate cross-section and with the convex side facing the on-coming traffic. The cross-sectional area of the bending zone increases progressively towards the lower end, whereby the flaring-out zone formed upon bending of the post will be larger below than above the line of bending. The greater inherent resiliency of the material below than above the line of bending will cause the post to bend back into an upright position after having been hit by a vehicle. Certain embodiments of the posts are manufactured by diagonally splitting lengths of extrusion-molded plastic tubing, forming two identically shaped posts from each tube length.

Abstract: A method and apparatus are disclosed for formation of tubular segments from a generally continuous tube of material by internally cutting the tube of material. The apparatus of the present invention includes a forming mandrel upon which the tube of material to be cut is carried, and upon which the tube is preferably spirally wound. The apparatus further includes a rotary cutter assembly mounted within the forming mandrel. The cutter assembly includes a cutter arbor and a blade actuating rod, with one or more cutting blades of the cutter assembly operatively associated with the actuating rod and the arbor such that relative axial movement of the actuating rod and the cutter arbor moves the cutting blades inwardly and outwardly of the forming mandrel of the apparatus. A cam mechanism is provided for effecting this desired relative axial movement.

Abstract: This relates to a mandrel assembly for forming a continuous web into individual pouches. The web is drawn onto a reciprocating mandrel through a suitable guide so as to have adjacent free edge portions. The free edge portions are sequentially heat sealed by a side sealer and the so formed continuous tube is sequentially pushed onto the mandrels carried by a turret, followed by the heat sealing closed of the forward most portion of the tube and then the cutting thereof from the tube. A drive is provided for reciprocating each mandrel and the drive constructed wherein the advance of each mandrel may be selectively varied. The web is preferably provided with suitable indicia printed thereon and in order that the indicia may be properly oriented with respect to each bag or pouch, there is an indicia or printing detector which functions to vary the advance of the mandrel upon each stroke thereof so as to maintain registration of the printing.

Abstract: Apparatus for receiving a strip of flexible bags with capped spouts at longitudinally spaced intervals which are to be separated at transverse joints and then fed individually to a point of use. It includes draw rolls for drawing the strip horizontally into cooperation with a separator, means for vertically reciprocating the separator to pass through the strip and separate the leading bag therefrom, a guide channel for receiving the spout of each separated bag, and a feeding element for engaging the spout on each successive bag and arranging the spouts in predetermined spaced relationship relative to previously inserted spouts and with the leading bag in a selected position for its spout to be engaged by bag-withdrawing means.

Abstract: The present invention provides a method and an apparatus for producing a packaging sleeve of polygonal cross-section, particularly adapted to be foldably collapsed, wherein circular or tubular sleeve stock is formed on a stationary spindle or mandrel from a plurality of glued, thin layers of paper, fabric, plastic material or the like, wound or wrapped one over the other. The sleeve is thereafter shaped into a polygonal cross-section. During the shaping of the tubular packaging sleeve while it is in the glue-wetted state, at least one continuous folding edge impressed into the sleeve wall and extending in the longitudinal direction of said sleeve is press-formed at the desired longitudinally extending edge corners of the polygonal cross-section.

Abstract: A labelled fabric includes a wide-mesh fabric having two opposite surfaces, a first web which is guided against one of the opposite surfaces of the wide-mesh fabric and a second web which is guided against the other of the opposite surfaces of the wide-mesh fabric. The second web is provided with labelling indicia. The first and second webs are bonded to one another through the interstices of the wide-mesh fabric.