US3752734A - Multi ply paper machine - Google Patents

Multi ply paper machine Download PDF

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Publication number
US3752734A
US3752734A US00063076A US3752734DA US3752734A US 3752734 A US3752734 A US 3752734A US 00063076 A US00063076 A US 00063076A US 3752734D A US3752734D A US 3752734DA US 3752734 A US3752734 A US 3752734A
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US
United States
Prior art keywords
belt
stock
run
vertical
deposited
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
US00063076A
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English (en)
Inventor
W Notbohm
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.)
Black Clawson Co
Original Assignee
Black Clawson Co
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 Black Clawson Co filed Critical Black Clawson Co
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Publication of US3752734A publication Critical patent/US3752734A/en
Assigned to WALTER E. HELLER & COMPANY, INC. reassignment WALTER E. HELLER & COMPANY, INC. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BLACK CLAWSON COMPANY, THE
Assigned to BLACK CLAWSON COMPANY, THE reassignment BLACK CLAWSON COMPANY, THE RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: HELLER FINANCIAL, INC. F/K/A/ WALTER E. HELLER & COMPANY INC.
Assigned to CHEMICAL BANK, AS AGENT reassignment CHEMICAL BANK, AS AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BLACK CLAWSON COMPANY, THE, HYDROTILE MACHINERY COMPANY
Assigned to BANK ONE, DAYTON, NATIONAL ASSOCIATION reassignment BANK ONE, DAYTON, NATIONAL ASSOCIATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). AMENDMENT TO AGREEMENT 6/01/88. SEE RECORD FOR DETAILS. Assignors: CHEMICAL BANK
Anticipated expiration legal-status Critical
Assigned to BLACK CLAWSON COMPANY, HYDROTILE MACHINERY COMPANY (NOW KNOWN AS BC MANUFACTURING CO., INC.) reassignment BLACK CLAWSON COMPANY RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BANK ONE, DAYTON, NATIONAL ASSOCIATION, CENTRAL TRUST COMPANY, N.A., DNC AMERICA BANKING CORPORATION
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/02—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type
    • D21F11/04—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type paper or board consisting on two or more layers

Definitions

  • a multi-ply paper machine utilizes a pair of forming belts with one belt having horizontal and vertical runs and the second belt having a vertical run in opposition to the vertical run of the first belt and defining therewith a vertically extending forming zone.
  • Papermaking stock is deposited on the horizontal run of the first belt and liquid drains therefrom as it progresses towards the vertical forming zone.
  • the major portion of the stock making up the finished web is then deposited in the vertical forming zone, with principal drainage of this stock deposition being through the vertical run of the second belt.
  • a second approach to the manufacture of multi-ply webs utilizes a second forming wire having a substantially horizontal run positioned above a portion of the horizontal run of an otherwise conventional fourdrinier machine.
  • the base layer is again deposited at the upstream end of the fourdrinier machine with a portion of the liquid of suspension draining therefrom as it travels towards the downstream end of the machine.
  • additional stock is deposited on the partially felted base layer with drainage of this second layer taking place through both the top wire and the base layer.
  • the present invention utilizes a pair of endless foraminous forming belts with one belt supported such that it is formed with a horizontal run and a vertical run extending downwardly from the downstream end of the horizontal run.
  • the second belt is supported to form a second vertical run positioned in closel spaced relationship to the vertical run of the first belt to define therewith a vertically extending forming zone.
  • the stock which will constitute the relatively lighter cover layer or layers of the finished sheet is applied to the horizontal run at one or more points therealong. Since Patented Aug. 14, I973 this portion will be a minor portion of the finished sheet, the horizontal run may be relatively short.
  • the major portion of the stock is deposited, thereby permitting the major portion of the dewatering to take place in the area where the greatest dewatering efficiency can be achieved, namely, the vertical run.
  • the liquid of the suspension of the second deposition will readily pass through the uncovered surface of the second belt.
  • some continued dewatering of the first deposited layer will take place through the vertical run of the first belt as well as a portion of the liquid from the second stock deposition.
  • principal drainage of the second stock deposition will take place, as noted, through the vertical run of the second belt.
  • a papermaking machine comprises a first, endless, foraminous belt 10 supported by a pair of rolls 11 and 12 to provide a substantially horizontal drainage run 13.
  • Rolls 11 and 12 which correspond to the breast and couch rolls, respectively, in a conventional fourdrinier type machine, are preferably of the suction type with each containing a suction device, as at 14 and 15, respectively.
  • belt 10, beneath the horizontal run 13 thereof, may be provided with a plurality of foils 16 and suction boxes 17 as Well as a tray 18 for collecting liquid draining from the stock deposited on the horizontal run 13.
  • a second belt 20 is supported by rolls 21, 22, 23 and 24 to provide a vertical run 25 thereof.
  • Roll 24 in conjunction with roll 12 also serves to form a vertical run 26 of belt 10 which, in closely spaced relationship to vertical run 25, defines therewith a vertically extending forming zone 27.
  • dewatering equipment which is shown somewhat schematically as a plurality of foils 28 and a collecting tray 29, but which may take the form of any convenient dewatering apparatus such as suction boxes and the like, is positioned for a purpose to be presently explained.
  • a stock deposition device 30 Adjacent the upstream end of the horizontal run 13*, a stock deposition device 30 is positioned for depositing a highly dilute suspension of papermaking fibers and liquid on the wire. While device 30 is illustrated as a pressure former, it will be apparent that the particular type utilized will be dependent upon the specific conditions of a particular installation. Downstream of the stock deposition device 30, a headbox 31 is positioned for adding an additional layer of dilute papermaking stock. Again, while device 3 1 is shown as a conventional headbox, it will be apparent that this may also be varied to suit the particular conditions of a specific installation. Moving to the downstream end of the horizontal run 13, it will be seen that at the upper end of the forming zone 27, a third headbox 32 is mounted for discharging papermaking stock into the forming zone 27.
  • a first layer of stock forming, for example, 25% of the finished sheet, is deposited by the stock deposition device 30. Liquid from this stock drains through the foraminous belt 10 at the horizontal run 13 thereof assisted by foils 16 or any other dewatering equipment. At a point downstream from the roll 11, preferably in most installations at a point downstream of the dry line of the horizontal run 13, an additional layer of stock is deposited by the headbox 31. This layer, which may comprise approximately 10% of the finished sheet, is deposited on the horizontal run with drainage thereof being assisted by the suction boxes -17.
  • the stock for the major portion of the finished sheet for example, approximately 65% thereof, is deposited, with the principal drainage taking place through the vertical run 25- of the second foraminous belt 20 assisted by the foils 28 or other dewatering equipment.
  • the relatively low amount of drainage necessary for the first two layers applied takes place through the horizontal run 13 which may, therefore, be kept relatively short.
  • the major portion of the drainage from the web takes place through the vertical run 25- of the second foraminous belt 20, that is, at the point where the greatest dewatering efficiency is encountered.
  • only a relatively minor portion of the dewatering of the last deposited stock takes place through the previously felted fibers covering the surface of the vertical run 26 of the first foraminous belt 10.
  • the danger of disturbing the formation of the first deposited layers of stock is decreased.
  • three stock deposition devices are shown, it will be apparent that only two or more than three could be utilized.
  • the first foraminous belt 10 is trained about a suction roll 33' and thence around turning rolls 34, 35 and 36.
  • a suction pick-up roll 40 covered by pick-up felt 41 serves to transfer the web from belt 10 to the press section of the papermaking machine.
  • the present invention provides a highly efficient method and apparatus for making multi-ply paper and board with relatively short forming belts and highly efficient dewatering with a minimum disturbance of the previously felted stock.
  • a multi-ply paper machine comprising:
  • said additional stock depositing device constituting substantially the only source of stock deposition on said second wire with said second wire being free of further stock deposition devices upstream of said additional stock deposition device whereby substantially all of said stock deposited in said forming zone can drain through said second wire.
  • a method of forming a multi-ply web on a paper machine which includes a first endless foraminous belt supported to define a horizontal run and a vertical run extending downwardly from a downstream end of said horizontal run and a second endless foraminous belt supported to define a vertical run positioned in closely spaced relationship to said vertical run of said first belt comprising:
  • step of depositing a suspension of papermaking fibers between said vertical runs comprises:
  • step of depositing a dilute suspension of papermaking fibers on said horizontal run comprises:
  • step of depositing said suspension at a plurality of points along said horizontal run comprises:
  • step of depositing a suspension of papermaking fibers between said vertical runs comprises:
  • a multi-ply paper machine comprising:
  • each of said drainage runs of said first belt having upstream and downstream ends and being angularly disposed with respect to each other with the upstream end of one of said drainage runs substantially coincident with the downstream end of the other of said drainage runs,
  • said second stock depositing means being substantially the only stock depositing means associated with said second belt whereby said second belt approaches said forming zone substantially free of fibrous material and a major portion of stock deposited by said second stock depositing means drains through said drainage run of said second belt.
  • each of said drainage runs is substantially planar.
  • said other of said drainage runs of said first belt is substantially horizontally oriented.

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  • Paper (AREA)
US00063076A 1970-08-12 1970-08-12 Multi ply paper machine Expired - Lifetime US3752734A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6307670A 1970-08-12 1970-08-12

Publications (1)

Publication Number Publication Date
US3752734A true US3752734A (en) 1973-08-14

Family

ID=22046766

Family Applications (1)

Application Number Title Priority Date Filing Date
US00063076A Expired - Lifetime US3752734A (en) 1970-08-12 1970-08-12 Multi ply paper machine

Country Status (9)

Country Link
US (1) US3752734A (fi)
JP (1) JPS5413523B1 (fi)
BR (1) BR7105179D0 (fi)
CA (1) CA946661A (fi)
DE (1) DE2138654A1 (fi)
FI (1) FI55371C (fi)
FR (1) FR2105860A5 (fi)
GB (1) GB1347062A (fi)
SE (1) SE384548B (fi)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3856618A (en) * 1973-06-04 1974-12-24 Beloit Corp Multi-ply paper forming machine with upward and downward forming runs
US3985612A (en) * 1973-03-12 1976-10-12 Kazumasa Watanabe Paper making system including forming fabrics and porous forming cylinders
US4324820A (en) * 1980-07-18 1982-04-13 St. Regis Paper Company Method and apparatus for coating a paper web
US5064502A (en) * 1989-03-18 1991-11-12 Beloit Corporation Multi-ply web former
US10760220B2 (en) * 2014-04-23 2020-09-01 Hewlett-Packard Development Company, L.P. Packaging material and method for making the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3123612A1 (fr) 2021-06-03 2022-12-09 Psa Automobiles Sa Support de fixation de deux equipements de vehicule

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985612A (en) * 1973-03-12 1976-10-12 Kazumasa Watanabe Paper making system including forming fabrics and porous forming cylinders
US3856618A (en) * 1973-06-04 1974-12-24 Beloit Corp Multi-ply paper forming machine with upward and downward forming runs
US4324820A (en) * 1980-07-18 1982-04-13 St. Regis Paper Company Method and apparatus for coating a paper web
US5064502A (en) * 1989-03-18 1991-11-12 Beloit Corporation Multi-ply web former
US10760220B2 (en) * 2014-04-23 2020-09-01 Hewlett-Packard Development Company, L.P. Packaging material and method for making the same

Also Published As

Publication number Publication date
DE2138654A1 (de) 1972-02-17
BR7105179D0 (pt) 1973-06-07
FI55371B (fi) 1979-03-30
SE384548B (sv) 1976-05-10
FI55371C (fi) 1979-07-10
FR2105860A5 (fi) 1972-04-28
JPS5413523B1 (fi) 1979-05-31
CA946661A (en) 1974-05-07
GB1347062A (en) 1974-02-13

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Legal Events

Date Code Title Description
AS Assignment

Owner name: WALTER E. HELLER & COMPANY, INC., 101 PARK AVE., N

Free format text: SECURITY INTEREST;ASSIGNOR:BLACK CLAWSON COMPANY, THE;REEL/FRAME:004250/0792

Effective date: 19840130

AS Assignment

Owner name: BLACK CLAWSON COMPANY THE

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:HELLER FINANCIAL, INC. F/K/A/ WALTER E. HELLER & COMPANY INC.;REEL/FRAME:004628/0875

Effective date: 19861015

AS Assignment

Owner name: CHEMICAL BANK, AS AGENT

Free format text: SECURITY INTEREST;ASSIGNORS:BLACK CLAWSON COMPANY, THE, AN OH CORP.;HYDROTILE MACHINERY COMPANY, ANIOWA CORPORATION;REEL/FRAME:004930/0102

Effective date: 19880601

AS Assignment

Owner name: BANK ONE, DAYTON, NATIONAL ASSOCIATION

Free format text: SECURITY INTEREST;ASSIGNOR:CHEMICAL BANK;REEL/FRAME:005319/0279

Effective date: 19900208

AS Assignment

Owner name: BLACK CLAWSON COMPANY, NEW YORK

Free format text: RELEASED BY SECURED PARTY;ASSIGNORS:BANK ONE, DAYTON, NATIONAL ASSOCIATION;CENTRAL TRUST COMPANY, N.A.;DNC AMERICA BANKING CORPORATION;REEL/FRAME:006414/0133

Effective date: 19921116

Owner name: HYDROTILE MACHINERY COMPANY (NOW KNOWN AS BC MANUF

Free format text: RELEASED BY SECURED PARTY;ASSIGNORS:BANK ONE, DAYTON, NATIONAL ASSOCIATION;CENTRAL TRUST COMPANY, N.A.;DNC AMERICA BANKING CORPORATION;REEL/FRAME:006414/0133

Effective date: 19921116