With Scrap Material Separation Or Removal Patents (Class 493/342)
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Patent number: 5402698Abstract: A method for aligning the process tools of a typical box blank die-cutting machine. The method contemplates the use of alignment openings 21 and 22 on the surface of male and female tools 19 and 20 corresponding to a cut through-hole 16 on test sheet 14. As test sheet is urged through the process, a series of alignment cylinders, 18, 24 are used to insure each of the male and female tools and test sheet are aligned by having the alignment cylinders fall cleaning through the various alignment openings and through-hole. Once the tools at each position of the process are aligned, alignment screws 31 and alignment members 28 on the machine frame 25 serve to fix the position of the tools relative to the position of the sheets to be die-cut, stripped and blanked. Accordingly, the method contemplates alignment and set-up of the machine based upon the urged position of the sheets to be etched and cut.Type: GrantFiled: April 15, 1993Date of Patent: April 4, 1995Assignee: Die-X Tooling SystemsInventor: Richard E. Morrison
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Patent number: 5393294Abstract: Method for producing sheets of corrugated cardboard with a variable format in which a web of corrugated cardboard is removed continuously from a heating and pulling device of s conventional corrugated cardboard installation. The sheets are processed to the required format in at least one longitudinal cutting and grooving device. For this purpose the web is conveyed through a pulling device. A cross cutter cuts the sheets of corrugated cardboard from the cardboard web according to a preset format. The cardboard web is conveyed to a cross cutter for the corrugated cardboard sheets in the direction of conveyance without cutting them crosswise. When the format is changed, the area of the web of corrugated cardboard where the formats overlap is cut out by the cross cutter and removed to a waste container through a trap.Type: GrantFiled: September 23, 1992Date of Patent: February 28, 1995Assignee: BHS Corrugated Maschinen- und Anlagenbau GmbHInventor: Lothar Jobst
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Patent number: 5383836Abstract: A machine for forming letter sheets from a paper web having regularly spaced transverse cut lines extending inwardly from pin hole edges and leaving a perforated but uncut middle portion has a tractor feed, a slitter for removing the pin hole edges of the web, an in-line Z-folder, pinch rollers and a burster. The Z-folder has a length which is one and half to two times the spacing between transverse perforation lines. The speed of the tractor feed drive and pinch roller drive are monitored and a sensor senses each transverse cut so that the speed of the pinch rollers may be synchronized with the tractor feed.Type: GrantFiled: March 23, 1993Date of Patent: January 24, 1995Inventor: John A. Long
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Patent number: 5340638Abstract: Chips of cardboard, in particular of packing cardboard, which are formed by cutting flat, preferably used packing cardboard lengthwise and crosswise, and the bulk volume of which is increased by copings and/or bent-over portions and/or peaks and/or recesses are provided, as is a packing unit comprising a wrapper, loosely filled at least to a substantial proportion with the bulk packing material made from a web of paper, in which the wrapper is formed by the web of paper shaped in the manner of a helical roll, the adjacent, helically extending long edges of which web are joined overlapping one another, and in which the wrapper is closed at both ends in the manner of a sack, and as is a process in which the cardboard, in particular packaging cardboard, is comminuted (cut) and is deformed to increase the bulk volume of the chips forming the packaging material, as well as an apparatus having a device for comminuting cardboard, in particular packaging cardboard, having one lengthwise and one crosswise cutting unitType: GrantFiled: October 2, 1991Date of Patent: August 23, 1994Inventor: Franz Sperner
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Patent number: 5338282Abstract: The automatic trimming machine of the present invention utilizes a conventional web press to print various sizes of postal and insert cards, flyers and coupon books completely on-line. The automatic trimming machine of the present invention includes a device for perforating the paper to define a folding line and a paper folding device for folding the paper along the perforated folding line. A preliminary trimming unit will first trim the left and right sides of the folded paper, including removing the backbone of the folded paper. The severed backbone is then removed from the preliminary trimming unit. The top and bottom edges of the paper are then trimmed to the appropriate size prior to the paper being cut into distinct products in a finish trimming unit. The finish trimming unit includes a plurality of adjustable cutting blades to allow for cutting of various sized products.Type: GrantFiled: March 23, 1993Date of Patent: August 16, 1994Inventor: Rock A. Ferrone
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Patent number: 5322202Abstract: An apparatus and method for removing a plurality of printed labels configured as paper sheet portions from a plurality of stacked pressing sheets, the labels being partially precut and arranged in a predetermined pattern in the pressing sheets, including a die plate having a plurality of openings formed therein in a predetermined pattern corresponding to the pattern of the labels in the pressing sheets. The labels are pressed from the pressing sheets through the openings by a plurality of press members which are arranged in a predetermined pattern corresponding to the patterns of both the labels and the die openings, and project from a vertically movable press plate. As the labels are pressed from the master sheets, the die plate openings help to maintain the labels in aligned stacks.Type: GrantFiled: May 29, 1992Date of Patent: June 21, 1994Assignee: J. R. Cole Industries, Inc.Inventor: Gilles Pelletier
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Patent number: 5303623Abstract: The common base of the comb-shaped clearing device is made of a shaft. Screws are provided for blocking pairs of parallel arms on a shaft in variable positions as a function of a longitudinal position of a series of points on the cutting cylinder (2). The two arms of each pair, which are symmetrical with respect to a symmetry vertical plane, have inner faces turned toward one another and formed in such a manner as to define therebetween an interval having a width which increases from front to rear.Type: GrantFiled: December 24, 1991Date of Patent: April 19, 1994Assignee: A.T.N. French Societe AnonymeInventor: Serge Chiloff
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Patent number: 5300009Abstract: Apparatus for stripping waste material from a paperboard web in a die cutter or die cutting section of a press that includes an outer pin cylinder, carrying self cleaning stripper pin mechanisms, and an inner ejection cylinder mounted eccentrically within the outer pin cylinder by a mounting arrangement that has a longitudinally extending non-rotatable beam with a pair of trolleys mounted thereon that carry rollers engagable with the inner surface of the ejection cylinder to keep the ejection cylinder in a predetermined position at all times with respect to the pin cylinder for engagement with said stripper pin mechanisms.Type: GrantFiled: June 15, 1993Date of Patent: April 5, 1994Inventor: Dan L. Bittenbender
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Patent number: 5298009Abstract: A machine for forming letter sheets from a paper web having regularly spaced transverse cut lines extending inwardly from pin hole edges and leaving a perforated but uncut middle portion has a tractor feed, a slitter for removing the pin hole edges of the web, an in-line Z-folder, pinch rollers and a burster. The Z-folder has a length which is one and half to two times the spacing between transverse perforation lines. The speed of the tractor feed drive and pinch roller drive are monitored and a sensor senses each transverse cut so that the speed of the pinch rollers may be synchronised with the tractor feed.Type: GrantFiled: August 3, 1993Date of Patent: March 29, 1994Inventor: John A. Long
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Patent number: 5291652Abstract: An apparatus for the production of a device for detaching portions of a planer workpiece of cardboard used in the folding box industry. The workpiece contains at least one blank for a folding box and adjoining waste pieces which are removed from the plane of the workpiece by the device. The device is formed of a plurality of breaking out pins inserted into a breaking out plate, the pins corresponding in position to the positions of the waste pieces of the blank. The apparatus includes a pressing element for pressing each breaking out pin into the breaking out plate and a magazine device for feeding the pins to the pressing element. A guide piece is associated with the magazine device and the pressing element which acts to guide each pin from the magazine. The guide piece is provided in the feed path of the of the magazine and is provided with a recess for receiving each individual breaking out pin.Type: GrantFiled: June 9, 1992Date of Patent: March 8, 1994Assignee: Meurer Nonfood Product GmbHInventors: Franz Vossen, Karl J. Gaigl
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Patent number: 5275075Abstract: An apparatus and method for forming a fold construction in a triple wall corrugated paper board comprises a pair of spaced apart main frame plates having four support plates connected therebetween in a direction which is transverse to a feed direction for the paper board. A pair of shaft carrier plates which have linear bearings thereon, are mounted for sliding movement to the support shafts between the frame plates. Spreader tubes are engaged around the support shafts for maintaining a selected and accurate distance between the carrier plates. Upper and lower shafts are rotatably mounted between the carrier plates and carry knives, scoring members or other fold forming elements for scoring or cutting the paper board to form segments of the fold construction. A table is fixed between the carrier plates that cooperates with a hold down roller which is rotatably mounted between the plates, to hold the paper board down and prevent curling or warping as the fold construction is formed.Type: GrantFiled: September 18, 1992Date of Patent: January 4, 1994Assignee: Weyerhaeuser CompanyInventors: Roderick G. Keech, John W. Flynn
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Patent number: 5193425Abstract: Chip-impalement spears for rotary cutters are provided in a rectangular shape with a single sharp bevelled edge along the top of the spears and adapted to be placed parallel to a roller of the rotary cutter. The spears are embedded in one roller and arranged so that their sharp edges will come into slight contact with an opposing roller. Properties of the spears, in particular, hardness, are selected to enable the spears to be rapidly bent over in use, forming a chip-retaining barb. Spears having this capability may be obtained by making transverse cuts across a cutting rule.Type: GrantFiled: May 14, 1991Date of Patent: March 16, 1993Assignee: NWF IndustriesInventors: Gaines P. Campbell, Jr., Blaine C. Stambaugh
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Patent number: 5179882Abstract: A waste removing apparatus is used in a punching machine for manufacturing a carton and removes a waste region of a sheet inserted between a movable die and a fixed die by cutting the sheet along a punching line formed thereon. Two molded plates are provided on the movable die and the fixed die, respectively so as to sandwich a product region of the sheet therebetween. The molded plates have areas slightly smaller than the area of the product region to reliably separate the waste region of a sheet from the product region thereof, even though the sheet is thin and, as such, flexible.Type: GrantFiled: February 20, 1990Date of Patent: January 19, 1993Assignees: Nippon Die Steel Co., Ltd., Asahi Machinery Ltd.Inventors: Takayuki Takeuchi, Isao Hirata
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Patent number: 5170688Abstract: An apparatus and method for forming a fold construction in a triple wall corrugated paper board comprises a pair of spaced a part main frame plates having four support plates connected therebetween in a direction which is transverse to a feed direction for the paper board. A pair of shaft carrier plates which have linear bearings thereon, are mounted for sliding movement to the support shafts between the frame plates. Spreader tubes are engaged around the support shafts for maintaining a selected and accurate distance between the carrier plates. Upper and lower shafts are rotatably mounted between the carrier plates and carry knives, scoring members or other fold forming elements for scoring or cutting the paper board to form segments of the fold construction. A table is fixed between the carrier plates that cooperates with a hold down roller which is rotatably mounted between the plates, to hold the paper board down and prevent curling or warping as the fold construction is formed.Type: GrantFiled: June 12, 1991Date of Patent: December 15, 1992Assignee: Wayerhaeuser CompanyInventors: Roderick G. Keech, John W. Flynn
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Patent number: 5154689Abstract: A machine, which is designed for converting sheets into blanks for forming packages, has at least an infeed station, a processing station for cuting and creasing the sheets of material into blanks, which processing station includes an upper and lower platen and a chain transfer conveyor for moving the sheets between the platens and any additional stations, such as waste stripping stations and delivery stations. To remove a front waste held in the gripper bars of the transfer conveyor after the blanks have been separated from the sheets, the machine includes a front waste removal station positioned above the upper platen of the processing station.Type: GrantFiled: April 9, 1991Date of Patent: October 13, 1992Assignee: Bobst SAInventors: Joseph Modoux, Mauro Chiari
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Patent number: 5152053Abstract: In an apparatus for producing a device for detaching portions of workpieces in plate, sheet or leaf form, in particular sheets of cardboard which are used in the folding box industry and which each include at least one blank for a folding box or the like, and adjoining waste pieces, a plurality of individual breaking-out pins are to be releasably fixed at a radial spacing (e) from each other on an elongate conveyor member, at the path of movement of which is disposed a piston or the like pressure element which is directed substantially parallel to at least one of the breaking-out pins and which is adapted to be moved towards a breaking-out pin and which is guided substantially at a right angle to a breaking-out plate to be fitted with breaking-out pins, wherein the conveyor member passes between the piston and the breaking-out plate.Type: GrantFiled: March 7, 1991Date of Patent: October 6, 1992Assignee: Meurer Nonfood Product GmbHInventors: Franz Vossen, Karl J. Gaigl
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Patent number: 5111725Abstract: The scrap ejector has a relatively long and thin body made of stainless steel or other resilient and durable material. The leading end portion of the body overlies and is secured to the outer surface of the die roll. In its undeflected condition, the trailing end portion of the body is spaced radially from the die roll. In one embodiment the body has a pad of compressible elastomer upon the surface thereof distal from the die roll, and in another embodiment the body has an arcuate portion projecting from the aforesaid surface of the body. During passage of the scrap ejector through the nip between the die and anvil rolls engagement between the anvil roll and the resilient pad (in the first embodiment) or the arcuate portion (in the second embodiment) deflects the trailing end portion of the body to a position wherein its terminal end is closely adjacent the surface of the die roll and the leading surface of the cutting rule which trims the leading edge portion of the paperboard stock.Type: GrantFiled: May 31, 1991Date of Patent: May 12, 1992Assignee: Container Graphics CorporationInventors: Jack R. Simpson, Jeffrey A. Geer
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Patent number: 5108358Abstract: A waste tab stripping apparatus used to form corrugated boxes from fiberboard blanks includes a mounting bracket adapted to retrofit the apparatus to a standard box-forming machine. A pair of counterrotating brushes are attached to the mounting bracket and are positioned so as to brush across the path of the blank. The brushes are longitudinally oriented so that their central axis extends at an angle substantially within the range of 5.degree. to 17.degree. relative to the direction of the path of the blank. One brush is positioned above the plane of blank and another brush is positioned below the plane of the blank. As the blank engages the stripping apparatus, the counterrotating brushes operate with a pinching force at the nip sufficient to strip the waste tab away toward the side edge of the blank. Pneumatically-powered motors are used to drive the brushes.Type: GrantFiled: August 31, 1990Date of Patent: April 28, 1992Inventor: Russell W. Mounce
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Patent number: 5087237Abstract: An improved adjustable rotary waste removal apparatus for removing and ejecting pieces of paperboard cut from a web of paperboard. The apparatus includes a pair of rollers, one of the rollers supporting many stripper pins and the other roller being a backup or anvil roller which supports the paperboard as the stripper pin passes through it. As the roller holding the stripper pins continues to turn, an internal off-center roller causes an ejection sleeve to move upwardly and remove the waste paperboard from the stripper pin. The improvement of the present invention relates to the adjustable mounting of the internal roller which moves the ejection sleeve outwardly so that the size of the roller supporting the stripper pins can be easily and quickly changed.Type: GrantFiled: October 26, 1990Date of Patent: February 11, 1992Inventor: Forrest E. Nunley
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Patent number: 5087236Abstract: After being formed an engaged die by engaging a male die of an upside die to a female die of a downside die through a space, being carried the engaged die on a carrier to a stamping part and being fastened the male die to an upside die mount after being lowered this mount, the mount is raised and the male die is pull out from the female die. After being returned the carrier to the former place, being brought the sliding plate close to the upper surface of the downside die, being supplied the stacked paper sheets having cutting slits and connecting portions along a guide plate of the sliding plate, being moved the carrier with pressing to the sheet positioning position and being positioned the downside die to just under part of the upside die, the supplementary supporting block is contacted with the lower side of the downside die. In this condition, the supplementary supporting block is lowered with pressing the shaped section with the male die by lowering the upside die mount.Type: GrantFiled: December 21, 1989Date of Patent: February 11, 1992Inventor: Hideo Morimoto
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Patent number: 5049120Abstract: In a adapted folder for folding sheet products there is provided a combination having two knife cylinders with shear action knives of which one has pins adjacent to its knives for holding cut off trimmings of product, and a suction duct whose opening extends around part of the periphery of the cylinder with the pins. A high degree of operational reliability may be achieved without weakening the structure of the pin cylinder if compressed air nozzles are arranged in a row alternating with the pins and supplied with compressed air by timing means so that air flows from the nozzles when they register with the suction duct opening.Type: GrantFiled: January 12, 1990Date of Patent: September 17, 1991Assignee: Albert-Frankenthal AGInventor: Sebastian Prum
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Patent number: 5035684Abstract: A pad sander paper punch assembly includes a base member having three upstanding walls for locating thereon a standard size sheet of sandpaper. A plate member is then placed over the sheet of sandpaper, the plate member having locating tabs which cooperate with the upstanding walls on the base member. The plate member and the base member are both perforated in locations corresponding to suction holes on the platen of the pad sander and a punch is then utilized to pass through the plate and base member perforations to appropriately perforate the sandpaper sandwiched therebetween. The base member is further formed with recessed walls so that the sandpaper may be creased at its ends to go over the sander platen with the perforations therein properly aligned with the suction holes in the sander platen.Type: GrantFiled: April 26, 1990Date of Patent: July 30, 1991Assignee: Ryobi Motor Products Corp.Inventor: Anthony M. Sorrells
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Patent number: 5031494Abstract: A web-slitting machine has its blades mounted on cylinders shifted along a linear guide extending the full width of the web to be slit. The sliders carry tubes whose suction nozzles are disposed in the regions of the blades and which terminate in connecting heads having boat-shaped projections received between elastomeric sealing lips closing a slit of a suction box extending along the guide.Type: GrantFiled: January 10, 1990Date of Patent: July 16, 1991Assignee: Kampf GmbH & Co. MaschinenfabrikInventors: Peter Asselborn, Dietmar Berzbach
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Patent number: 5019030Abstract: An envelope blank forming machine for forming generally rectangular booklet envelope blanks and generally diagonal envelope blanks on the same machine includes a pair of removable turnbars, adjustable pull rolls and an adjustable cutoff device. Preselected adjustment of these components provides a generally rectangular blank or a generally diagonally shaped blank. Retractable trim devices are provided in cutting relation with the blank when diagonal blanks are being formed. Seal flap cutters and first and second flap cutters are provided to form the booklet seal flap and bottom flap on the booklet envelope blank. These cutters are removed and replaced with seal flap corner cutters, bottom flap corner cutters and diagonal trim cutters when generally diagonal envelope blanks are being formed.Type: GrantFiled: April 26, 1990Date of Patent: May 28, 1991Assignee: F. L. Smithe Machine Company, Inc.Inventors: Herbert W. Helm, John R. Anderson, Michael P. Lambert
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Patent number: 4988332Abstract: A method for the production of packing bags which can be stacked on a wicket and unfolded while being filled, and for that purpose are provided at the bottom end of the bag with exposed wicket perforations disposed in a wicket tab. The bag is made from an outspread web which first is assembled to an open-sided tube and then into a flat-folded tube and bonded. The outspread web is severed in the area of the bag-length boundaries which set the bag lengths apart from one another, by means of a cut made transversely of the web, which produces a castellated outline. The bottom area and top area of two bag lengths lie adjacent one another and yield interfitting tabs and notches. The tabs in the top area can be laid one on the other to form a handle section and at least one tab in the bottom area is used as a wicket tab. Unneeded web material between the tabs is cut away.Type: GrantFiled: May 4, 1989Date of Patent: January 29, 1991Assignee: M u. W Verpackungen Mildenberger u. Willing GmbH & Co. KGInventor: Helmut Mattle
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Patent number: 4969639Abstract: Rolls of paper are converted by unwinding, cutting and stacking into a relatively high stack of paper sheets of a predetermined uniform size. At least one of the vertical corners of the stack is removed by running an electrically driven manual planar down the corner so as to leave each sheet with one or more corners having a notch for use in orienting the sheet such as in feeding it in to a copy machine. The planer is equipped with guide means so that the corner notches all have the same predetermined size and shape. The planer is preferably equipped with a vacuum hose which removes the debris as it is formed and conveys it to a vacummized collection chamber. Preferably, the stacks of paper sheets are accumulated onto the deck if a pallet having on the underside a support integrally formed from a sheet of material so as to have parallel channel formations adjacent to and inset from opposite sides of the deck. It is also desired to provide a center-post or pedestal.Type: GrantFiled: November 7, 1988Date of Patent: November 13, 1990Assignee: Teledyne Industries, Inc.Inventor: William A. Adair
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Patent number: 4963126Abstract: Method and apparatus for preventing the curling of a composite material having a fluid permeable base and a fluid impermeable outer surface in a manufacturing operation wherein a continuous sheet of the composite material is moved in incremental amounts through a cutter-creaser apparatus to have carton blanks formed therein wherein the curling is prevented by forming a curtain of air under pressure to apply downwardly directed forces on the fluid impermeable surface during the incremental movement of the continuous sheet through the cutter-creaser apparatus and the forming of the carton blanks.Type: GrantFiled: May 5, 1989Date of Patent: October 16, 1990Assignee: Adolph Coors CompanyInventor: Norman L. Jesch
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Patent number: 4941865Abstract: A continuous method of forming a repetitive pattern on a metallized film substrate is disclosed as including the steps of continuously feeding a web of metallized film substrate at a predetermined web speed, selective dry removal of predetermined metallized areas from the metallized film substrate during continuous movement thereof, and collecting metallized dust and flakes removed from the metallized film substrate during the aforementioned dry removal of predetermined metallized areas from the metallized film substrate. Unlike existing wet systems which remove metallized areas from a metallized film substrate, the present invention employs selective dry removal, along with the collection of dust, in a continuous in-line system. Following the selective removal of metallized areas from the metallized film substrate, metallized dust is collected in a closed dust removal system providing removal, transport and collection of the metallized dust in a storage unit.Type: GrantFiled: October 24, 1988Date of Patent: July 17, 1990Assignee: Packaging Concepts, Inc.Inventor: Joseph Skudrzyk
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Patent number: 4941376Abstract: An apparatus for cutting a cylindrical web made of laminated paper into cylindrical bodies from which containers for beverages are formed including a pair of cutting blades provided with suction ports so that dust such as paper powder, etc. generated when the web is cut by the blades is sucked out through the suction ports connected to a suction device.Type: GrantFiled: May 8, 1989Date of Patent: July 17, 1990Assignee: AB Tetra PakInventor: Yuzo Otsuka
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Patent number: 4900297Abstract: A downstacker assembly in which paperboard blanks, received from a die cutter station, are passed sequentially through a trim removal station, a feed station, a stacker assembly partially disposed in a pit, and a stack retrieval assembly. The stacker assembly is disposed in a drop chute beneath a vacuum conveyor assembly which drops the blanks from the feed station into the drop chute, assisted by a pair of twin blank striker assemblies which selectively separate the blank therefrom. The stacking blanks are tamped using a semiflexible tamper plate assembly against flexible curtains on a descending elevator assembly. A stack staging assembly serves as a temporary cradle to catch the falling blanks once a predetermined stack height is achieved until the stacks can be removed via the stack retrieval assembly. A dunnage holding assembly provides multiple-tier load forming as the stacks are discharged from the downstacker assembly.Type: GrantFiled: April 25, 1988Date of Patent: February 13, 1990Assignee: ASC Machine Tools, Inc.Inventors: Terry Frost, Terry B. Smith, Jennings A. Jones
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Patent number: 4823659Abstract: The invention relates to a cutting tool and a tool holder for cutting panels from blanks of sheet-like material. The cutting tool comprises a thin cutting plate on which is formed by etching a cutting edge having a contour corresponding to the outline of the panels to be cut out. The cutting plate also comprises a plurality of openings which are surrounded by the cutting edge. The tool holder is a metallic cylinder to be mounted on the drive shaft of a conventional panel cutting apparatus and comprises a seat for receiving the cutting plate which is retained in the seat by keys. In the cylinder are formed passageways communicating with a source of vacuum and also communicating with the openings on the cutting plate to create a zone of vacuum in the vicinity of the cutting edge.Type: GrantFiled: February 6, 1987Date of Patent: April 25, 1989Assignee: Rofalex International Inc.Inventor: Roland Falasconi
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Patent number: 4818343Abstract: The invention relates to a device for cutting off and guiding an edge strip from one part of a paper or board machine to another in connection with the threading of a paper or board web. The device includes air jet nozzles for guiding the edge strip, and a threading plate which is provided with a cutting mechanism for cutting off the edge strip. In order to provide a device reliable in operation, the cutting mechanism including at least one blade member which is arranged to be displaced during the cutting of the edge strip in a plane substantially parallel to the plane of the threading plate from the front side of the threading plate towards the front edge thereof and to cut off the edge strip on the side facing away from the front edge of the threading plate and to guide the edge strip further on to the threading plate.Type: GrantFiled: April 16, 1987Date of Patent: April 4, 1989Assignee: Oy Tampella ABInventor: Paavo Laine
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Patent number: 4767393Abstract: A flat platen-type cutting and creasing press for sheet material includes a continuously moving closed loop conveyor that carries sheet gripping means in a feed direction along a generally horizontal feed path extending through a sheet loading station, a sheet unloading station, and a cutting station having die elements positioned thereat with the cutting station being positioned between the sheet loading and unloading stations. Eccentric shafts rotating at uniform speed translates platens carrying the die elements along a circular path positioned for the die elements to operatively engage and thereby fully cut a sheet moving along the feed path through said cutting station. Rotating counterbalancing weights on the eccentric shafts are disposed between points on the platens that are connected to the eccentric shafts.Type: GrantFiled: December 8, 1986Date of Patent: August 30, 1988Inventor: Edwin K. Smith
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Patent number: 4765212Abstract: Chip remover for machines which perform a machining operation, especially on metallic workpieces, such as strip edging machines, turning machines, etc. The chip remover has a stretched spiral rotating about its longitudinal axis with successive turns spaced apart from one another. The free upper end of the spiral extends into the chip discharge area of the machining tool. This spiral carries the chips away from the area about the tool to assure unhampered machining. The spiral is in the form of a hollow helix and is surrounded, on the outside, with only minimal clearance, by a non-rotating guide tube having an open-topped slot running lengthwise of the tube. The upper end of the helix extends freely out of the tube.Type: GrantFiled: March 20, 1987Date of Patent: August 23, 1988Assignee: Julius Maschinenbau GmbHInventor: Rolf Julius
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Patent number: 4740193Abstract: An improved downstacker assembly in which paperboard blanks, received from a die cutter station, are passed sequentially through a trim removal station, a feed station, a stacker assembly partially disposed in a pit, and a stack retrieval assembly. The stacker assembly is disposed in a drop chute beneath a vacuum conveyor assembly which drops the blanks from the feed station into the drop chute, assisted by an impacting assembly which selectively separates the blanks therefrom. The stacking blanks are tamped against flexible curtains on a descending elevator assembly. A stack staging assembly serves as a temporary cradle to catch the falling blanks once a predetermined stack height is achieved until the stacks can be removed via a stack retrieval assembly.Type: GrantFiled: September 19, 1986Date of Patent: April 26, 1988Assignee: ASC Machine Tools, Inc.Inventors: Terry Frost, Terry B. Smith, Jennings Jones
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Patent number: 4725261Abstract: Apparatus and method for cutting an end portion of a carton blank, e.g. to form a stitch flap, employs a rotatably driven male cutting head cooperating with a rotatably driven female cutting head. The female cutting head has a peripheral cutting groove therein and an anvil surface adjacent one side of the groove. The male cutting head has a two edged slot cutting blade of predetermined arcuate length which enters the groove each revolution, and a knife which extends transversely away from the blade and engages the anvil surface each revolution. The blade has a scallop-like cut-out in the side adjacent the anvil surface. The cut-out modifies the blade to a single edged cutting blade for a small part of its length. Scrap portions produced from the carton blank by a slotting cut of the blade and a transverse cut of the knife are integrally connected together by a bridging piece enabled by this cut-out.Type: GrantFiled: December 19, 1986Date of Patent: February 16, 1988Assignee: The Ward Machinery CompanyInventors: Michael W. Millard, Henry L. Dunn, Jr.
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Patent number: 4649696Abstract: Welding and cutting process in which the bag is disposed in a holding unit (107) supporting and positioning it, and is composed of a side plate (108), a stop plate (109), and a closing angle member.Type: GrantFiled: June 25, 1985Date of Patent: March 17, 1987Assignee: Societe Generale des Eaux MineralesInventors: Georges Brie, Michel Cazes
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Patent number: 4636191Abstract: There is disclosed a bag making machine for producing bags from an elongate strip of plastic web material. The disclosure relates to various improvements in the bag making machine such as the apparatus for cutting the bag handle aperture. The apparatus includes at least one circular cutting blade having a plunger movable relative thereto within its cutting periphery. The plunger includes a web piercing member on its leading face which member positively holds the web material relative to the cutting blade and plunger.Type: GrantFiled: February 7, 1984Date of Patent: January 13, 1987Assignee: PCL Packaging LtdInventor: David C. Piggott
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Patent number: 4618342Abstract: A machine including a feeding group or station, a first rotative cutting or creasing station, a second rotative cutting or creasing station and a rotative stripping station characterized by a single drive motor driving the various rotating tools of the stations and a feed roll of the feeding station. Each of the first and second stations and the stripping station have a frame with two lateral frame members with each of the lateral frame members having a groove for receiving bearing blocks for the upper and lower rotatable tools and one of the frame members of each groove mounts a drive pinion in a fixed position relative to the groove and in driving engagement with a gear on the shaft of the lower tool. Each of the bearing blocks have the same outer dimensions with the axis of the tool being positioned in the bearing block depending on the size of the tool so that by changing tools, the gears of the tools always engage the same drive pinion.Type: GrantFiled: November 20, 1985Date of Patent: October 21, 1986Assignee: Bobst SAInventor: Edouard Borel
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Patent number: 4613321Abstract: A tandem arrangement of diecutting rolls severs scrap from a traveling web in two steps, each of which steps effects cutting entirely through the web, but at different peripheral locations. The partially cut scrap is carried with the remainder of the web from the first roll to the second, and any severed piece that lodges within the cutting element of the second roll is removed by the action of a mechanical scraper, which passes therethrough.Type: GrantFiled: September 6, 1985Date of Patent: September 23, 1986Assignee: Preston Engravers, Inc.Inventors: Martin Kesten, Leroy H. Carlson, Jr., Gary L. Kwader
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Patent number: 4612006Abstract: An improved die cutting apparatus separates the gripper margin from the product portion and the releases the gripper margin from the gripper at the same station, i.e. at a pair of rolls. Further, the gripper margin is re-held and re-released at the pair of the rolls to prevent the gripper margins from becoming up with the product portions.Type: GrantFiled: September 18, 1984Date of Patent: September 16, 1986Assignee: Rengo Co., Ltd.Inventors: Masateru Tokuno, Tetsuya Sawada
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Patent number: 4608037Abstract: The invention relates to method and apparatus for removing the flaps from a perforated web of paper by drawing the perforated web over an abrasively surfaced drum rotating in the same direction as the paper is traveling and at a peripheral speed about seven times greater than the speed of the web. The web is passed over the drum such that the flaps are at the leading or downstream edges of the perforations and lie between the paper and the drum. A spring-biased pressure yoke holds the perforated web against the drum surface with a predetermined amount of pressure to facilitate abrading the flaps from the web.Type: GrantFiled: April 23, 1984Date of Patent: August 26, 1986Assignee: RJR Archer, Inc.Inventor: William F. Fleming, III
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Patent number: 4601692Abstract: A method and apparatus for manufacturing paper sheets having an appearance of being hand-made, the method comprising the steps of forming watermarks on a continuous web along longitudinal and transverse zones spaced according to the width and length of the paper sheets, drying the continuous web, crushing longitudinal and transverse regions of the dried continuous web within the watermarked longitudinal and transverse zones, respectively, tearing and separating the dried continuous web along the longitudinal and transverse crushed regions, respectively.Type: GrantFiled: September 28, 1984Date of Patent: July 22, 1986Assignee: Suecia Antiqua LimitedInventors: Hans Rausing, Ingvar Nilsson
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Patent number: 4561334Abstract: A piece of material cut from a web is removed by a stripper mechanism which is preferably embodied in a pair of die cylinders having coacting cutting blades which cut pieces from a web of material passing between the cylinders. As the cylinders rotate, a piece to be removed is releasably secured to one of the cylinders for rotation therewith, the secured piece is pivoted to lift its leading edge from the die by coaction with a finger on the other die which bears on a trailing portion of the piece. After the piece is carried away by the one die, it is removed by cooperation with a stripper plate which passes between the raised leading edge of the piece and the die and releases and removes the piece from the die.Type: GrantFiled: June 19, 1984Date of Patent: December 31, 1985Assignee: Bernal Rotary Systems, Inc.Inventor: Albert J. Sarka
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Patent number: 4537588Abstract: A rotary punch device for making window cut-outs in envelopes and cardboard oxes, with a clamping device for clamping a metal foil having a cutting edge etched out of the foil material. Vacuum bores in the cylindrical surface of the rotary punch retain the material for treatment in position while the punched-out portion of the window is initially also retained by a vacuum and blown away by an air blast on completion of the punch operation.Type: GrantFiled: January 16, 1984Date of Patent: August 27, 1985Assignee: Winkler & Dunnerbier Maschinenfabrik und Eisengiesserei GmbH & Co. KG.Inventors: Gunter Ehlscheid, Heinz-Helmut Frost
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Patent number: 4534151Abstract: A method and an apparatus for packaging paper rolls (2), wherein a wrapper sheet (1) of such a size as to exceed the axial length of the roll is wrapped around the roll and the width of the wrapper sheet is reduced to a size corresponding to the length of the roll by removing the part (5, 6) of the wrapper sheet which extends over the ends of the roll. The header sheet (14, 15) which is bigger than the end surface of the roll, is placed on the ends of the roll and reduced to a size corresponding to the diameter of the roll or smaller by removing at least the part of the header sheet extending over the end surface. Thereafter the header (14, 15) and the wrapper (25) are secured to each other so that a tight joint is formed.Type: GrantFiled: July 13, 1983Date of Patent: August 13, 1985Assignee: A. Ahlstrom OsakeyhtioInventors: Hans Schneck, Esko Tiitinen
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Patent number: 4533130Abstract: An apparatus for folding a running web has a deflecting roller supporting the running web; a scoring device for providing a weakening score line in the running web parallel to the running direction thereof for dividing the web into side-by-side arranged first and second web portions; and a folding roller supporting the running web and situated spaced from and downstream of the deflecting roller as viewed in the direction of web advance. The folding roller has a longitudinal axis oriented at least approximately at right angles to the longitudinal axis of the deflecting roller, whereby the running web undergoes an approximately 90.degree. twist and the first web portion of the running web folds over the second web portion along the score line as the running web passes from the deflecting roller onto the folding roller.Type: GrantFiled: September 24, 1984Date of Patent: August 6, 1985Inventor: Walter Suter
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Patent number: 4530693Abstract: A waste stripping unit is disposed downstream from a die cutter for cutting a sheet of paperboard into a product and waste and includes an upper roller having a male die corresponding to the waste of the sheet and a lower roller having a female die which cooperates with the male die on the upper roller to separate the waste from the product during passage of the sheet between the rotating upper and lower rollers.Type: GrantFiled: November 29, 1982Date of Patent: July 23, 1985Assignee: Isowa Industry Co., Ltd.Inventor: Eiichi Isowa
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Patent number: 4510667Abstract: A method and apparatus for pre-setting the mounting holes for cutting and ejection tools characterized by a template which has a pattern of holes including centering holes and an arrangement for positioning both a cutting form and an ejection board whether it is the first or second ejection board relative to the cutting form. In the method, the cutting form is placed on the template and the centering holes are formed. Then with a pin received in each of the centering holes formed in the board the mounting holes are formed utilizing the holes of the template for guiding a drill, then an ejection board such as the second ejection board is aligned on the template with the cutting form and has centering holes formed using the centering holes of the template and the cutting form to guide and locate the drill bit. Additional mounting holes can be formed after providing the centering holes.Type: GrantFiled: February 3, 1982Date of Patent: April 16, 1985Inventors: Jacques Nassoy, Bernard Protin
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Patent number: 4476758Abstract: A slitter scorer having upper and lower web paths is provided with suction trim means along opposite edges of a web to be processed. Adjacent each suction trim means, and associated with each of said paths, there is provided a web deflecting means for flattening a web.Type: GrantFiled: September 4, 1981Date of Patent: October 16, 1984Assignee: Molins Machine Company, Inc.Inventor: Robert E. Coburn