US3307995A - Machine and process for making wrapped corrugated boards - Google Patents

Machine and process for making wrapped corrugated boards Download PDF

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Publication number
US3307995A
US3307995A US256434A US25643463A US3307995A US 3307995 A US3307995 A US 3307995A US 256434 A US256434 A US 256434A US 25643463 A US25643463 A US 25643463A US 3307995 A US3307995 A US 3307995A
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United States
Prior art keywords
strips
faced
strip
sheet
double
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Expired - Lifetime
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US256434A
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English (en)
Inventor
Sr Harry F Martin
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Weyerhaeuser Co
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Weyerhaeuser Co
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Publication date
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Priority to US256434A priority Critical patent/US3307995A/en
Priority to BE643275D priority patent/BE643275A/xx
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Publication of US3307995A publication Critical patent/US3307995A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2822—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard involving additional operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2822—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard involving additional operations
    • B31F1/2827—Edge treatment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1034—Overedge bending of lamina about edges of sheetlike base
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y10T156/1075—Prior to assembly of plural laminae from single stock and assembling to each other or to additional lamina
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1084—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing of continuous or running length bonded web
    • Y10T156/1087—Continuous longitudinal slitting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/1317—Means feeding plural workpieces to be joined
    • Y10T156/1322—Severing before bonding or assembling of parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1712—Indefinite or running length work
    • Y10T156/1739—Webs of different width, longitudinally aligned

Definitions

  • This invention pertains to the making of double-faced corrugated board in which one or both of two opposite edges are wrapped and more particularly, it pertains to machines and methods of making such board.
  • a primary object of the invention is to provide a machine for the at least partly concurrent manufacture of a plurality of strips of double-faced corrugated board each having one of its edges wrapped.
  • Another primary object of the invention is to provide a machine for such production of double-faced corrugated board strips each of which has both of two opposite edges wrapped.
  • a further object is to provide a machine for such production of at least three double-faced corrugated board strips each having one or both of two opposite edges wrapped.
  • Another object of importance is to produce the above strips on a standard corrugated facing machine .with the use of certain inexpensive and easily mountable attachments.
  • a further and more specific object of the invention is to produce the strips as indicated in any of the rst three objects by a machine in which a single face of corrugated sheet is severed into a plurality of singlefaced strips and the latter spread laterally apart predeterminately whereupon a single facing sheet is secured and spaced apart to the strips in a predetermined rela- 'tion therewith forming double-faced strips connected by the sheet and the latter subsequently severed -so as to produce separate double-faced strips having one or two laterally extending portions of what had been said single-facing sheet prior to the severing thereof, after which the latter extendiing portions of the strips are folded over and secured, thus producing double-faced strips having one or two wrapped edges each, as desired.
  • Still another object is to provide a machine for the production of the strips as indicated in any of the first three objects and by a machine as indicated in the preceding object in which unique single-faced strips spreading and spacing control means are employed.
  • the y strip spreading means comprises first means for partly spreading the strips and second means for spreading the strips at least slightly further to a substantially predetermined lateral spacing of each strip from the one or ones adjacent to it thereby establishing or assuring proper spacing between the strips.
  • a still further and important object is to accomplish the objects set forth in each of the preceding paragraphs which machine is adjustable so as to handle and process single-faced corrugated sheets of different widths and second or single facing sheets of different widths and moreover, so as to produce at least partly currently different numbers of double-faced wrapped strips for different adjustments thereof.
  • Another primary object of the invention is to provide a novel method of or process for making a plurality of strips of double-faced corrugated board each having one or both of two opposite edges thereof wrapped, said method or process in its various forms and aspects being apart and distinct from the machine indicated in any of the above objects and the one disclosed hereinafter Patented Mar. 7, 1967 n detail inasmuch as such method or process in its various forms may be practiced by the use of hand tools or by machines or equipment other than as so indicated in the objects and detail disclosure.
  • FIGURES l and 2 taken together and in sequence, constitute a vertical longitudinal sectional view of a preferred form of machine of the invention, broken in the middle and shown in two parts for convenience of illustration, the machine also being shown broken from adjoining structure at the front and rear thereof and additionally being shown broken at a number of places within the View for the purpose of shortening the view; and
  • FIGURES 3, 4 and 5, .taken together and in sequence, constitute a perspective view of the machine of FIGURES l and 2, broken in two places and shown in three parts for convenience Vof illustration and so as to better disclose the machine, the machine also being shown broken from adjoining structure at the front and rear thereof and additionally being shown broken away in places so as to better disclose the machine.
  • the machine is shown in operation with material passing continuously therethrough and being processed into three strips of double-faced corrugated board each of which has its opposite longitudinal edges wrapped.
  • the numeral 1 generally designates a sheet of wide single-faced corrugated material, consisting of an upper facing sheet 2 and a lower sheet 3 of corrugated material of the same width as that of sheet 2 and suitably secured to the sheet by adhesive in the customary manner, which enters the machine over a tensioning roll 5.
  • the sheet of wide single-faced corrugated material 1 is then severed by slitting by stationary knives 7 into three narrower sheets or strips or single-face corrugated material 9, 10 and 11 of the same width as the sheet 11 moves continuously past the knives towards the right as seen in the drawing views.
  • the three strips of single-faced corrugated material next pass under a tensioning roll 13 and over the smaller rolls 14 and 15 associated with the latter.
  • the tensioning r-olls 5 and 13 hold the corrugated material taut as it passes through the slitting station at 7. After the three strips of single-faced corrugated ⁇ material 9, 10 and 11 leave the tensioning roll 13, they come in contact with stationary pressure bars 17, 18 and 19 respectively. These bars extend laterally across the major extent of and [bear against the upper surfaces of the respective strips applying pressure to the s ame for a purpose which will ybe explained. These bars, as can be seen from the drawing, are each centered in a lateral direction with respect to the respective strips.
  • the center bar 18 extends and bears against the center strip 10 in a straight line which is normal or at right angles to the longitudinal direction of travel of the sheet 1 prior to severing thereof into strips and of the center strip 10 after this severing.
  • Such bearing against and pressure exerted on the surface of the center strip at right angles as indicated cause this strip to be pulled along perfectly straight from the roller 15 and from the bar 18 to assure straight rearward movement of the center strip with no change of lateral position.
  • the outer bars 17 and 19, on the hand, are not normal to the above-mentioned direction, but rather extend and outer bars are exactly equal and opposite each other, each being inclined rearwardly and outwardly relative to the center bar 18.
  • the inner limits of the ybars 17 and 19 are also in transverse alignment with the center bar while the opposite outer ends -of these bars are rearwardly therefrom.
  • the outer bars 17 and 19 and also the inner bar 18 also preferably extend and bear against the respective srtips so that the theoretical or geometrical elements of each strip extending thereacross normal or at right angles to the longitudinal edges of the respective strips are horizontal, that is the bars do not cause the strips to be twisted but the latter remain with their transverse elements still horizontal after passing under the bars.
  • the outer strips 9 and 11 are pulled straight or normal from or past the bars but at an youtward angle each relative to the roll and the center strip 10 thereby causing the outer strips to move laterally away from the center strip as they are pulled longitudinally along such outward lateral movement of the outer strips being at equal rates because of the equal and opposite inclinations of the outer bars 17 and 19.
  • the strips into which the sheet 1 is divided are caused to be spread out from each other and equally so on each side.
  • the spread apart single-faced corrugated strips 9, 10 and 11 next pass beneath a tensioning roll 21 and then over a pair of rolls 22 and 23 which apply glue on the exposed edges of the corrugated material of each strip.
  • the roll 23 is part of a standard type of gluing apparatus as can be seen from the drawing.
  • the strips 9, 10 and 11 pass by stationary separation control triangles 25 which further separate or spread the strips from each other at least slightly to establish and thereby assure predetermined separation or spacing of the strips from each other. It is preferred that the srtips 9, 10 and 11 be spaced and the actual machine shown spaces the strips 2 inches apart, although this can be varied by the use different control triangles or of adjustable triangles or control means. As can be seen from the drawing, these control triangles are positioned between the strips 9, 10 and 11 bearing against certain longitudinal edges thereof in contrast to the previous separator or spreader means 17, 18 and 19.
  • a rolled sheet of facing material 29 is rotatably supported directly -beneath the roll 13, the unrolled portion of the sheet 29 being trained over and under a number of rolls, 30 through 33, and then brought into light contact with the underside of the corrugated material of the predeterminately spaced apart strips 9, 10' and 11, to which glue has ybeen applied, by passing between pressure rolls 35 and 36 together with the strips 9, 10 and 11, as clearly shown in the drawing.
  • the single-faced strips and the facing sheet 29 are accordingly affixed or secured together by the glue as the same are moved continuously along by a severed friction belt 38 over a series of heated bars 39 which set the adhesive and through a cooling section therebeyond between bolt 38 along the top and a belt 4t) therebelow, which between them apply pressure to the newly formed ⁇ double-faced strips 43, 44 and 45.
  • the double-faced corrugated strips just described as formed are joined or interconnected at the 'bottom by the single-facing sheet 29 which is secured by the ⁇ adhesive to each of what had been the separate and spaced apart single-faced strips thus forming the double-faced strips.
  • the facing sheet 29, as should be apparent, is considerably wider than the sheet of single-faced material 1 prior to severing thereof into strips and spreading of the latter and moreover the sheet 29 is of such a width as to not only extend under or span the spaced strips 9, 10 and 11 while being secured thereto but additionally extend -laterally outward beyond the outer strips an amount or distance -on each side which is at least substantially equal to one half the distance separating the adjacent singlefaced strips prior to their being secured to the facing sheet and the adjacent double-faced strips thereafter.
  • the sheet 29 actually depicted in the drawing is of such a width and is so applied by the machine as t0 extend outwardly one inch beyond each of the outer strips on each side of the sheet 29 which is one half the 2-inch spacing between each of the adjacent strips.
  • the strips 43, 44 and 45 next pass along through rotary knives 50 which are laterally positioned on the machine so as to sever the interconnecting single-facing sheet 29 midway between the adjacent strips 43 and 44 and adjacent strips 44 and 45 thus to separate the strips from each other, that is to form or produce separate double-faced strips.
  • each strip has or is provided with two portions of what had been the single-facing sheet 29 prior to the severing thereof extending laterally beyond each of the longitudinal edges of the strip respectively and along the length of these edges respectively and as previously indicated that these portions extend substantially equal amounts or distances beyond the respective edges inwardly, 1 inch in the actual strips depicted.
  • Additional rotary knives 52 are provided to trim the outwardly extending portions of the lower face of the outer strips 43 and 45 if necessary so as to make sure that these portions do not extend more than the above noted half the distance between adjacent strips or putting it another way, so as to be assured that they do not extend outwardly more than the other extending portions of outer strips extend inwardly.
  • the separate double-faced strips 43, 44 and 45 each with two portions of its lower face extending beyond the longitudinal edges thereof respectively, as noted, move past stationary wrapping means 54 and 55 which engage the extending face portions of each strip moving or folding them upwardly so as to be in engagement with and also extend beyond the edges.
  • the wrapping means are essentially angle irons which have been uniformly twisted so that the two legs of each of the irons are horizontal and vertical where an extending face portion enters the same while the same legs become vertical and horizontal, respectively, where the strip leaves the iron with the horizontal portion of the iron extending inwardly over the upper face of the strip.
  • 54 are single wrapping means for operating on a single extending face portion while 55 are double wrapping means for operating on two adjacent and oppositely extending face portions, the latter means being essentially two twisted angle irons in back-to-back relation at the front thereof.
  • the spreading means 17, 18 and 19 are adjustably mounted on a stationary cross support 68 having slots 70 therein within which slots the supporting shank or rod-like portions 72 can be moved laterally and tightened or locked in position by the nuts (see FIG. l).
  • the bars 17, 18, 19 can also be turned at the threaded connectors 74 and locked in position by the nuts 75.
  • Such adjustability permits the spreading means to handle and accommodate different widths of single-faced sheets 1 centering on the severed strips formed therefrom and also different numbers of bars 17, 18, 19 may be mounted on the cross member 68 or adjusted in and out of use by rotation at 74 to accommodate different numbers of strips that may be desired to be formed and processed.
  • the machine may be so adjusted or set up to cut or process two strips or four or more strips rather than the three peresently shown for whatever purpose desired.
  • the position and number of slitting knives 7 control triangles 25, glue pots 48 rotary knives 50, wrapping means 54 and creasing rolls 58 are likewise laterally adjustable and variable in number for accommodating different widths of sheets 1 and 29 and consequently of the strips formed therefrom and being processed and also different numbers of strips desired to be formed and processed in agreement with the adjustment of and the numbers of bars 17, 18 and 19 which are employed.
  • the invention also covers a method of process, in various forms and modifications, of making double-faced corrugated boards or strips in which one or both of two opposite edges of each board are wrapped which method or process is apart and distinct from any machine for producing the boards or strips within the purview of the objects in the preamble and from the machine just disclosed in detail.y It was indicated in the preamble that the process or method of making the boards or strips could be practiced or carried out by the use of hand tools and equipment, for instance, or by machines and equipment other than those previously indicated.
  • the method or process of the invention to which reference has been made may be broadly set forth, as an example, as comprising the steps of severing a single-faced corrugated sheet having a first facing sheet attached to a corrugated sheet, the first face and the corrugated material being of substantially the same width, into a plurality of single-aced strips; spreading the strips laterally apart substantially predeterminately from each other; applying adhesive to the exposed ridges of the corrugated material of the strips; aliixing a second facing sheet to the exposed ridges of the plurality of single-faced strips, the second sheet being wider than the plurality of spaced apart strips and joining the strips together; severing said second sheet between the strips; applying adhesive along or near the edge of the first sheet to each of the double-faced strips; wrapping the extending portion of each of the second sheets around the longitudinal edge of its strip and over the first sheet; and securing said extending portion of the second sheet to the adhesive coated portion of the rst sheet.
  • the first mentioned application of adhesive may be before, after, or even in the course of spreading of the strips and the second mentioned application of adhesive may be before or after the second mentioned severing.
  • the method or process may also comprise the following steps where precut or formed single-faced strips can be provided, for instance and as an illustration only: affixing a second facing sheet to the corrugated cores of the plurality of single-faced strips with the strips in substantially predetermined spaced apart relation to each other, subsequently severing the second facing sheet so as to produce separate double-faced strips each having one or two extending portionsof the second facing sheet extend- 6 ing laterally beyond one or both of two opposite edges of the strip, and wrapping said edge or edges of each strip with the extending face portion or portions respectively and afixing the previously extending face portion or portions in place after the wrapping as by suitable adhesive.
  • the first application of adhesive carried out by the machine may also be before, after, or in the course of the spreading of the strips and the second application of adhesive carried out by the machine may also be before or after the second severing.
  • said first means for spreading the single-faced strips comprises means for bearing against the face of one of the longitudinally moving single-faced strips and thereby guiding said one strip laterally outwardly away from another strip.
  • said first means for spreading the single-faced strips comprises means for bearing against the face of one of the longitudinally moving single-faced strips along substantially a straight line which is at an angle to the longitudinal direction of movement of the strip and thereby guiding said one strip laterally outwardly away from another strip.
  • said first means for spreading the single-faced strips further including means for bearing against the face of the other single-faced strip along substantially a straight line which is at an angle to the longitudinal direction of movement of the strip and thereby guide the strip laterally outwardly in a direction away from the rst recited longitudinally moving double- Ifaced strip, the angle of inclination of each of said straight lines and of said means therealong being substantially equal and the inclination of each of these lines and means being opposite to each other.
  • said first means for spreading the single-faced strips comprises means for bearing against the face of one of the singlefaced strips along substantially a straight line 'which is substantially at right angles to the longitudinal direction of movement of the strip before any lateral spreading movement of any of the single-faced strips begins thus assuring continued straight movement of the strip therefrom in said longitudinal direction thereof with substantially no change of lateral position of the strip and means for bearing against the face of another of the single-faced strips adjacent the first recited singlefaced strip along substantially a straight line which is at an angle to said longitudinal direction of movement of the first strip such as to cause the strip to move laterally outwardly away from the first strip as the former strip is moving longitudinally along.
  • said first means for spreading the single-faced strips comprising means for so bearing against the face of one of the single-faced strips as to cause the strip to move laterally outwardly in a direction away from another strip as the former strip is moving longitudinally along.
  • the means for :spreading the single-faced strips laterally apart comprising first means for spreading the strips laterally apart from yeach other and second means for further and predeter- .minately spreading the strips laterally apart from each other.
  • the step of severing said second facing sheet comprising so severing the sheet substantially midway between two adjacent doublefaced strips joined together by the sheet thus producing two separate double-faced strips having the extending portions thereof extending laterally towards each other from the facing adjacent longitudinal edges of the two strips at least immediately after the severing.

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US256434A 1963-02-05 1963-02-05 Machine and process for making wrapped corrugated boards Expired - Lifetime US3307995A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3607538A (en) * 1969-06-20 1971-09-21 Deering Milliken Res Corp Sealed edge process
US3711352A (en) * 1970-09-14 1973-01-16 Int Paper Co Flute sealing method
US3775211A (en) * 1971-11-26 1973-11-27 Dowd D Method for facing a single-faced corrugated web
US3880697A (en) * 1973-09-07 1975-04-29 Hagger Company Method of and apparatus for making bonded belt loops
US3993526A (en) * 1973-09-07 1976-11-23 Haggar Company Method of and apparatus for making bonded belt loops
US4119246A (en) * 1977-07-07 1978-10-10 Haggar Company Apparatus for crimping belt loops
USRE30528E (en) * 1973-09-07 1981-02-24 Haggar Company Method of and apparatus for making bonded belt loops
US4527319A (en) * 1981-09-28 1985-07-09 Hancor, Inc. Method and apparatus for manufacturing foldable conduit
US4666550A (en) * 1986-02-24 1987-05-19 Philip Morris Incorporated Apparatus for producing a strip of laminated sheet material
US20110092351A1 (en) * 2008-07-01 2011-04-21 Mitsubishi Heavy Industries, Ltd. Method and device for producing box of corrugated board sheet
WO2016165837A1 (en) * 2015-04-13 2016-10-20 Bobst Grenchen Ag Web-fed laminator device and method for assembly thereof

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US444821A (en) * 1891-01-20 Apparatus for making leaf-hinges for books
US1452379A (en) * 1919-11-04 1923-04-17 Goodrich Co B F Method and apparatus for building laminated strips
US1591062A (en) * 1922-04-01 1926-07-06 Lightship Cloth Board Corp Method of making cloth boards and similar articles
US1609320A (en) * 1923-10-18 1926-12-07 Lightship Cloth Board Corp Method of making cloth boards and similar articles
US1817929A (en) * 1929-04-02 1931-08-11 Seiberling Rubber Co Fabric slitting and strip edging apparatus
US2008974A (en) * 1933-12-02 1935-07-23 David Weber And Company Method for making corrugated board
US2977271A (en) * 1956-12-31 1961-03-28 Wilton J Lutwack Method of making laminated protective book cover
US3031356A (en) * 1957-05-08 1962-04-24 Crown Zellerbach Corp Method of making corrugated paperboard with a wrapped edge
US3189502A (en) * 1961-03-03 1965-06-15 West Virginia Pulp & Paper Com Method of making impregnated corrugated paperboard sheets on a corrugator machine
US3206349A (en) * 1960-04-13 1965-09-14 Gen Box Company Machine for making book covers

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US444821A (en) * 1891-01-20 Apparatus for making leaf-hinges for books
US1452379A (en) * 1919-11-04 1923-04-17 Goodrich Co B F Method and apparatus for building laminated strips
US1591062A (en) * 1922-04-01 1926-07-06 Lightship Cloth Board Corp Method of making cloth boards and similar articles
US1609320A (en) * 1923-10-18 1926-12-07 Lightship Cloth Board Corp Method of making cloth boards and similar articles
US1817929A (en) * 1929-04-02 1931-08-11 Seiberling Rubber Co Fabric slitting and strip edging apparatus
US2008974A (en) * 1933-12-02 1935-07-23 David Weber And Company Method for making corrugated board
US2977271A (en) * 1956-12-31 1961-03-28 Wilton J Lutwack Method of making laminated protective book cover
US3031356A (en) * 1957-05-08 1962-04-24 Crown Zellerbach Corp Method of making corrugated paperboard with a wrapped edge
US3206349A (en) * 1960-04-13 1965-09-14 Gen Box Company Machine for making book covers
US3189502A (en) * 1961-03-03 1965-06-15 West Virginia Pulp & Paper Com Method of making impregnated corrugated paperboard sheets on a corrugator machine

Cited By (14)

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