US3443490A - Apparatus for cutting and creasing cardboard - Google Patents

Apparatus for cutting and creasing cardboard Download PDF

Info

Publication number
US3443490A
US3443490A US557093A US3443490DA US3443490A US 3443490 A US3443490 A US 3443490A US 557093 A US557093 A US 557093A US 3443490D A US3443490D A US 3443490DA US 3443490 A US3443490 A US 3443490A
Authority
US
United States
Prior art keywords
roll
tools
rolls
bar
creasing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US557093A
Other languages
English (en)
Inventor
Thomas Desmond Bishop
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deritend Engineering Co Ltd
Original Assignee
Deritend Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deritend Engineering Co Ltd filed Critical Deritend Engineering Co Ltd
Application granted granted Critical
Publication of US3443490A publication Critical patent/US3443490A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/24—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter
    • B26D1/245—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter for thin material, e.g. for sheets, strips or the like
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/20—Cutting sheets or blanks
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/20—Cutting sheets or blanks
    • B31B50/22—Notching; Trimming edges of flaps
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/25—Surface scoring
    • B31B50/254—Surface scoring using tools mounted on belts or chains

Definitions

  • An apparatus for slotting and creasing blanks which includes first and second pairs of rolls arranged to operate successively on each blank, and in which each pair of rolls is provided with (a) one set consisting of two complementary creasing tools, one tool of the set being mounted on the surface of each roll and extending parallel to the axis of the roll, (b) at least one set consisting of two complementary slotting tools, one tool of each set being mounted on the surface of each roll and lying in a plane perpendicular to the axis of the roll, and (c) at least one set consisting of two complementary drive bands, one drive band of each such set being mounted on the surface of each roll and extending from one side of the creasing tool around the roll to the other side of the creasing tool, the slotting tools being adjustable circumferentially relative to the creasing tool and drive bands on each roll to vary the spacing of the two creases produced by the two pairs of rolls on each blank.
  • This invention relates to apparatus for the cutting and creasing of cardboard and like materials particularly in the manufacture of blanks for subsequent erection into boxes.
  • FIG- URE l of the accompanying drawing A typical cardboard box blank is illustrated in FIG- URE l of the accompanying drawing and comprises portions 20-24 which are all substantially rectangular and are integral and which form four sides of the box and the bottom, i.e. a central rectangular base and four flaps e'ach forming one side of the box, together with four further flaps 25-28 which connect the sides at the box corners.
  • a bar-bender for example as illustrated diagrammatically in FIGURE 2 (i.e. a pair of rolls 40 carrying on one roll a pair of creasing tools 41 extending along the roll and adjustable therea-bout and carrying complementary and likewise adjustable tools 42 on the other roll) with a slotter (e.g. a second pair of rolls 43 carrying a number of pairs of cutting knives 44, the knives of each pair being relatively adjustable to adjust the length of the slot, and the knives being adjustable also lengthwise of the roll to vary the slot spacing in one direction and being adjustable about the roll for the same purpose in the other direction).
  • a slotter e.g. a second pair of rolls 43 carrying a number of pairs of cutting knives 44, the knives of each pair being relatively adjustable to adjust the length of the slot, and the knives being adjustable also lengthwise of the roll to vary the slot spacing in one direction and being adjustable about the roll for the same purpose in the other direction.
  • One of the objects of the invention is to overcome this disadvantage and provide means to grip the blank without adjustment when the bend spacing is varied.
  • a further object of the invention is to provide an improved apparatus whereby the separate rotary creaser may be coupled for adjustment synchronously with the barbender/slotter combination thereby simplifying setting-up and adjustment.
  • a bar-bender/slotter combination is characterised by the provision of one bar-bender set on each of two coupled roll pairs and one or more pairs of slotter tools on each roll pair.
  • each roll when the spacing of the slots along the roll is constant, each roll may be wrapped by a single pad 50 of constant length which extends from one side of the bar-bend tool 41, 42 about the roll to the other side of that tool, and adjustment of the position of that bar-bend tool relative to the one on the other roll pair will not alter the pad length so that the pad may remain and provide constant drive to the blank.
  • the pads When the slotter positions are varied the pads will need adjustment axially along the roll only and in a practical embodiment the pads are carried on sleeves to slide on the roll during adjustment.
  • FIGURE 3 shows each roll wrapped as aforesaid, but it may be preferred to provide encircling rings of pads of rubber or other hard or yielding driving material on the rolls carrying the male bar-bend tools, and use steel rings on the roll carrying the female tools.
  • the position of the bar-bend tools angularly of the rolls and in relation to one another may be varied by interconnecting the two tools of each pair by gears whereby the two tools are varied synchronously so that mesh is maintained, and the two pairs may be varied by a running register arrangement using gears which are normally held relative to one another but which can be released to turn (or vice versa) for such adjustment.
  • apparatus for the purpose specified comprises two roll pairs namely first and second pairs each having one or more pairs of slotter tools which are adjustable along the roll length, and a separate rotary creaser tool having a plurality of creasing tool sets likewise adjustable along an axis, all of said tools being coupled to be simultaneously and synchronously adjustable to maintain the slots in line with the creases formed thereby.
  • FIGURE 4 shows a blank for a closed box having parallel panels 60 forming its sides, and its lid and base formed from flaps 61, a
  • transverse and longitudinal creases 62 made by bar bends and rotary creaser and slots 63 etc. are required, but the invention is still applicable.
  • FIG. 1 is a plan view of a cardboard box blank which may be produced by an apparatus embodying the present invention.
  • FIGURE 2 is a diagrammatic elevation of two pairs of rolls showing the conventional arrangement of creasing and slotting tools.
  • FIGURE 3 is a diagrammatic elevation of an apparatus embodying the invention, showing how the arrangement of creasing and slotting tools differs from the conventional arrangement shown in FIGURE 2.
  • FIGURE 4 is a plan view of another cardboard box blank which can be produced by an apparatus embodying the present invention.
  • FIGURES 5, 5a, and 5b are an elevation, partly in section, showing the drive to one roll and also to the slotting tool thereon.
  • FIGURE 6 is an end view also partly in section, showing the two rolls of one pair and their relationship.
  • FIGURE 7 is a diagrammatic plan view showing the interconnections.
  • FIGURE 8 is a section showing the slotters engaged.
  • the roll shaft 100' is driven from a main gear 101 which is normally clutched to a plate 102 by a cone arrangement 103 carrying an internal gear 104 meshed with pinion 105 whereby, after easing the clutch via bolt 106 the pinion may be hand rotated to vary the position of shaft 100.
  • housings 107 Located on shaft 100 and in a dovetail rebate in the same are housings 107 carrying one or more parallel spindles 110 bushed therein and which serve to carry the slotter heads generally indicated at 111 to rotate the heads with shaft 100.
  • Each spindle is screw threaded and the spindles 110 are connected by an epicyclic gear set seen at the right hand side of FIGURE 5.
  • the gear set com-prises a (usually) stationary sun pinion 112 carried in bearings 113 by an end plate forming part of the stationary machine structure, and meshed with individual planet pinions 114 carried by a main drive gear 115.
  • the planets are meshed with annulus gear 116 which also has a gear ring meshing with wheels 117 on the individual spindles 110.
  • Annulus gear 116 further carries an external gear ring 11 8 and the sun is splined or keyed to a gear wheel 119 and both the ring 118 and wheel 119 will be further described hereafter.
  • wheel 119 Associated with wheel 119 is a pinion (not shown) constantly meshed with wheel 119 to drive the latter selectively when needed, for example by a motor (not shown).
  • the motor incorporates a brake and for convenience the wheel 119 of one roll of each pair may be meshed with the not shown pinion, and this arrangement ensures that wheels 119 which form part of the inching gearing are held fixed when adjustment is not wanted, and are moved in synchronism when needed.
  • Gear 115 transmits drive from the same source which drives gear 101 so that normally the slotter head carrying spindles remain individually stationary and only move with shaft 100 about the axis of the latter and at the same speed as the latter and do not individually rotate.
  • shafts 100 are seen to carry pairs of spindles 110 so that if and when rotated, by ring 118, the slotter heads may be moved along the shafts to move the slots, transversely of the blank.
  • a plurality of heads may be provided, ones of which are hushed on one spindle and have for example left hand threads engaging with another, left hand threaded spindle 110 and others may have right hand threads to engage with a right hand threaded spindle (being bushed on the left hand threaded spindle) so that the transverse spacing may be varied when all of the spindles are rotated in the same sense.
  • the slotter knives are indicated at 125.
  • each shaft at each end is a ring 130 journalled on the shaft and the two rings on each shaft carry the bar-bend tools 131, 1'32 secured thereto by bolts 133, so that the tools extend along the length of the shaft angularly spaced from the slotter knives. It will be appreciated that a plurality of bar-bend tools could be provided on the rolls.
  • the rings are fast with respective gears 134 (see FIGURE 5) which are immediately adjacent gears 135 fast with shaft 100.
  • the female bar-bend tools 132 are located, at intervals along their length, in slots or gaps in driving rings which encircle the shaft 100 and are arranged immediately adjacent the female slotter knives, see FIGURE 8 so as to slide on the shaft with the slotters when the latter are adjusted therealong.
  • the male bar-bender tools 131 similarly carry driving rings 142 which include a peripheral dovetailed rubber or like band, and the blanks, when fed through the roll nips are continuously driven by these bands and rings 140, 142 and any adjustment of the bar-bender and slotters does not affect this drive of the blanks.
  • FIGURE 7 this illustrates diagrammatically the drive adjustment connections between barbenders and slotters which enable the slot cut by the knives on one roll pair to be precisely positioned to terminate on the crease made by the bar bend tools on the other roll pair, and vice versa, even when one pair of bar bend tools are moved angularly relative to the rolls, by moving the associated slotters on the other rolls by a like amount.
  • FIGURE 7 shows the bar bend tools, diagrammatically, indicated by the reference numerals 131a and 131b differentiated by the letters a and b to indicate the rolls concerned
  • FIGURE 7 shows, by Way of example, the connections between the top rolls of the two roll pairs. Similar connections are used between the lower rolls of the pairs.
  • the drive from the bar bend tool on one roll to the slotter which cooperates therewith on the next roll is the same as that between the slotter on the said one roll and the bar-bend tool which cooperates therewith on the said next roll.
  • Gears 134a mesh with intermediate pinions fast with a layshaft 151 to transmit drive to gears 135b on the next roll, so that normally gears 135b on one roll and gears 134a on the next roll rotate together and at the same speed so that the mesh between the bar bender driven by gears 134a and the slotter and shaft driven together via 135b is maintained.
  • Each pinion 150 has a second part 152 splined to the same layshaft 151 to take the drive between the axially spaced gears in question. This drive is indicated by the heavy arrowed line 160. This drive is duplicated at each end of the layshaft.
  • pinion 150, 152 is a third pinion 155 rotatable on the layshaft 151 which serves to transmit drive from gears 135a which are fast wit-h rolls 100 and hence with the slotters to gears 134i fast with the bar bend tools.
  • This drive is shown by the heavy arrowed line 161.
  • gears 134 and 135 vary axially of the respective shafts to enable these connections to be made.
  • Variation of the position of the bar bender tools and slotters, angularly of the rolls, to vary the dimension of the blank to be creased and slotted whilst maintaining registration of creases and slots, is effected by easing the cone clutch 103 by means of the bolt 106 and rotating the pinion 105 by hand as hereinbefore described, so that shaft 100 turns in rings 130 and alters the relationship between the slotter and bar benders on the first roll pair, i.e. between gears 134 and 135 on such one shaft, whilst the resultant drive connection between the rolls (arrowed lines 160, 161) causes the corresponding bar bend tools and slotters on the next roll pair to move by corresponding amounts.
  • An independent adjustment may be provided in the drive between the source and gears 115 for use only in setting up to obtain perfect registration on the first occasion, and all subsequent adjustments for blank length, bar bend spacing and slot spacing transverse of the blanks will be made with uniformly accurate registration quite automatically.
  • the rotary creaser may have creasing tools carried and driven substantially similarly to the slotters and supported on screw-threaded spindles in the same way as the slotters and the spindles may be driven by gears meshed with the gear rings 118 to maintain the creases formed by the creasing tools in line with the slots, and this adjustment Will then be effected automatically.
  • the upper roll of one set and the lower roll of the next are provided with epicyclic gear sets each including a gear wheel 19 coupled to the motorised inching pinion, and each thus coupled roll is connected to the next roll on the same level by the FIGURE 7 arrangement.
  • the apparatus may be set up so that the first and last creases on each blank are made in the first and second pairs of rolls respectively, or vice versa.
  • Apparatus for slotting and creasing blanks comprising first and second pairs of rolls arranged to operate successively on each blank, characterized in that each of said two pairs of rolls is provided with (a) one set consisting of two complementary creasing tools, one tool of the set being mounted on the surface of each roll and extending parallel to the axis of the roll, (b) at least one set consisting of two complementary slotting tools, one tool of each such set being mounted on the surface of each roll, and lying in a plane perpendicular to the axis of the roll, and (c) at least one set consisting of two complementary drive bands, one drive band of each such set being mounted on the surface of each roll and extending from one side of the creasing tool around the roll to the other side of the creasing tool, the slotting tools being adjustable circumferentially relative to the creasing tool and drive bands on each roll to vary the spacing of the two creases produced by the two pairs of rolls on each blank.
  • slotting tools are adjustable axially of each roll by threaded shafts which are driven by the output member of an epicyclic gear set having a normally stationary reaction member which, when driven, rotates the output member relative to the roll to rotate the threaded shafts.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
US557093A 1965-06-15 1966-06-13 Apparatus for cutting and creasing cardboard Expired - Lifetime US3443490A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25326/65A GB1110563A (en) 1965-06-15 1965-06-15 Improvements relating to apparatus for the cutting and creasing of cardboard

Publications (1)

Publication Number Publication Date
US3443490A true US3443490A (en) 1969-05-13

Family

ID=10225878

Family Applications (1)

Application Number Title Priority Date Filing Date
US557093A Expired - Lifetime US3443490A (en) 1965-06-15 1966-06-13 Apparatus for cutting and creasing cardboard

Country Status (3)

Country Link
US (1) US3443490A (de)
CH (1) CH450888A (de)
GB (1) GB1110563A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3611884A (en) * 1970-01-26 1971-10-12 William J Hottendorf Box making machine
US3709111A (en) * 1970-09-28 1973-01-09 Harris Int Corp Paperboard convertible printer scorer slotter
US3771425A (en) * 1970-09-30 1973-11-13 M Matsuo Cardboard box blank and apparatus for making the same
US3954050A (en) * 1974-09-11 1976-05-04 Molins Machine Company, Inc. Apparatus having a quick-set slotter knife
US4019428A (en) * 1974-09-11 1977-04-26 Molins Machine Company, Inc. Quick-set slotter knife
FR2338135A1 (fr) * 1976-01-15 1977-08-12 Simon Container Mach Ltd Machine pour la fabrication d'ebauches de carton pour former des boites en carton
US5002524A (en) * 1990-01-08 1991-03-26 The Langston Corporation Precrush tool for corrugated board slotter head
US5699710A (en) * 1995-08-10 1997-12-23 Lawrence Paper Company Slotter wheel mechanism having selectively rotatable slotter blade
US6026727A (en) * 1996-03-07 2000-02-22 Lawrence Paper Company Rotary scoring apparatus having retractable scoring blade
WO2021045699A1 (en) * 2019-09-05 2021-03-11 Kaplami̇n Ambalaj Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Cardboard cutting and folding machine

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2291789A (en) * 1941-02-24 1942-08-04 Samuel M Langston Co Sheet trimming, slitting, and scoring mechanism
US3059552A (en) * 1960-03-10 1962-10-23 Simon Ltd Henry Box-making machines
US3111067A (en) * 1961-03-10 1963-11-19 Deritend Eng Co Apparatus for the treatment of cardboard and the like for the manufacture of cardboard boxes or containers
US3257882A (en) * 1964-09-11 1966-06-28 Koppers Co Inc Slitter-scorer apparatus having automatic adjusting means
US3299801A (en) * 1964-11-28 1967-01-24 Deritend Eng Co Apparatus for treating blanks or webs of material
US3304193A (en) * 1963-10-09 1967-02-14 Owens Illinois Inc Method and apparatus for making blanks for containers and the like
US3308723A (en) * 1964-08-06 1967-03-14 Jr Charles J Bergh Apparatus for slitting and scoring carton blanks
US3314340A (en) * 1963-11-09 1967-04-18 Deritend Eng Co Apparatus for use in the manufacture of boxes and the like

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2291789A (en) * 1941-02-24 1942-08-04 Samuel M Langston Co Sheet trimming, slitting, and scoring mechanism
US3059552A (en) * 1960-03-10 1962-10-23 Simon Ltd Henry Box-making machines
US3111067A (en) * 1961-03-10 1963-11-19 Deritend Eng Co Apparatus for the treatment of cardboard and the like for the manufacture of cardboard boxes or containers
US3304193A (en) * 1963-10-09 1967-02-14 Owens Illinois Inc Method and apparatus for making blanks for containers and the like
US3314340A (en) * 1963-11-09 1967-04-18 Deritend Eng Co Apparatus for use in the manufacture of boxes and the like
US3308723A (en) * 1964-08-06 1967-03-14 Jr Charles J Bergh Apparatus for slitting and scoring carton blanks
US3257882A (en) * 1964-09-11 1966-06-28 Koppers Co Inc Slitter-scorer apparatus having automatic adjusting means
US3299801A (en) * 1964-11-28 1967-01-24 Deritend Eng Co Apparatus for treating blanks or webs of material

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3611884A (en) * 1970-01-26 1971-10-12 William J Hottendorf Box making machine
US3709111A (en) * 1970-09-28 1973-01-09 Harris Int Corp Paperboard convertible printer scorer slotter
US3771425A (en) * 1970-09-30 1973-11-13 M Matsuo Cardboard box blank and apparatus for making the same
US3954050A (en) * 1974-09-11 1976-05-04 Molins Machine Company, Inc. Apparatus having a quick-set slotter knife
US4019428A (en) * 1974-09-11 1977-04-26 Molins Machine Company, Inc. Quick-set slotter knife
FR2338135A1 (fr) * 1976-01-15 1977-08-12 Simon Container Mach Ltd Machine pour la fabrication d'ebauches de carton pour former des boites en carton
US4090433A (en) * 1976-01-15 1978-05-23 Simon Container Machinery Limited Production of carton blanks
US5002524A (en) * 1990-01-08 1991-03-26 The Langston Corporation Precrush tool for corrugated board slotter head
US5699710A (en) * 1995-08-10 1997-12-23 Lawrence Paper Company Slotter wheel mechanism having selectively rotatable slotter blade
US6026727A (en) * 1996-03-07 2000-02-22 Lawrence Paper Company Rotary scoring apparatus having retractable scoring blade
WO2021045699A1 (en) * 2019-09-05 2021-03-11 Kaplami̇n Ambalaj Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Cardboard cutting and folding machine

Also Published As

Publication number Publication date
CH450888A (de) 1968-05-15
GB1110563A (en) 1968-04-18

Similar Documents

Publication Publication Date Title
US4450740A (en) Rotary envelope cutting apparatus
US3443490A (en) Apparatus for cutting and creasing cardboard
US1959424A (en) Slitting and creasing mechanism
US2696255A (en) Blank-forming method and mechanism for envelope making machines
US20040224828A1 (en) Method of and apparatus for the grooving of endless webs
US2759542A (en) Apparatus for cutting a moving broad strip longitudinally and obliquely
US3540357A (en) Overlength extended slotter mechanism
EP1001878B1 (de) Faltschachtelklebemaschine zur herstellung von faltschachteln aus zuschnitten
US1613132A (en) Machine for preparing box blanks
US2028145A (en) Tuber
US1547214A (en) Box-blank machine
US3147676A (en) Scoring device
US2199270A (en) Feed roller
US2641973A (en) Machine for making paper boxes
US1286377A (en) Rotary punch-press.
US3111067A (en) Apparatus for the treatment of cardboard and the like for the manufacture of cardboard boxes or containers
US3677144A (en) Method and apparatus for manufacturing flat, tubular wrappers
US1997608A (en) Variable speed cutting mechanism
US3972271A (en) Apparatus for producing understrips for hinge lid cigarette packets
US1742335A (en) Paper-products machine
US1746284A (en) Rotary creasing and scoring machine
US2364342A (en) Blank creasing and slotting machine
US1844697A (en) Method of and means for forming paper sheets
US2191988A (en) Printer slotter
US2100519A (en) Bag and like tubing machine

Legal Events

Date Code Title Description
AS Assignment

Owner name: DERITEND ENGINEERING (1983) LIMITED,ENGLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DEC (REALISATIONS) LIMITED;REEL/FRAME:004337/0876

Effective date: 19841003

Owner name: DEC (REALISATIONS) LIMITED

Free format text: CHANGE OF NAME;ASSIGNOR:DERITEND ENGINEERING COMPANY LIMITED THE;REEL/FRAME:004339/0184

Effective date: 19840918

Owner name: DERITEND ENGINEERING (1983) LIMITED SWANCLOSE HOUS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DEC (REALISATIONS) LIMITED;REEL/FRAME:004337/0876

Effective date: 19841003