CA2057880A1 - Pressurized forming board - Google Patents

Pressurized forming board

Info

Publication number
CA2057880A1
CA2057880A1 CA 2057880 CA2057880A CA2057880A1 CA 2057880 A1 CA2057880 A1 CA 2057880A1 CA 2057880 CA2057880 CA 2057880 CA 2057880 A CA2057880 A CA 2057880A CA 2057880 A1 CA2057880 A1 CA 2057880A1
Authority
CA
Canada
Prior art keywords
forming board
stock
forming
pressurized forming
controlled
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.)
Granted
Application number
CA 2057880
Other languages
French (fr)
Other versions
CA2057880C (en
Inventor
David Theodore Smith
Douglas Robert Mcpherson
Richard Edward Pitt
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.)
ASTENJOHNSON Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2057880A1 publication Critical patent/CA2057880A1/en
Application granted granted Critical
Publication of CA2057880C publication Critical patent/CA2057880C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/48—Suction apparatus
    • D21F1/483—Drainage foils and bars
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/009—Fibre-rearranging devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/02—Complete machines for making continuous webs of paper of the Fourdrinier type

Landscapes

  • Paper (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

A paper making machine forming board is described wherein the rate of drainage of the stock through the forming fabric is curtailed and controlled by applying a low positive air pressure above ambient atmosphere to the machine side of th: forming fabric. Additionally, a controlled level of agitation is induced in the stock on the forming board, providing better initial paper for-mation.
CA 2057880 1989-06-08 1990-06-07 Pressurized forming board Expired - Fee Related CA2057880C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36292589A 1989-06-08 1989-06-08
US362,925 1989-06-08

Publications (2)

Publication Number Publication Date
CA2057880A1 true CA2057880A1 (en) 1990-12-09
CA2057880C CA2057880C (en) 1996-05-07

Family

ID=23428078

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2057880 Expired - Fee Related CA2057880C (en) 1989-06-08 1990-06-07 Pressurized forming board

Country Status (7)

Country Link
EP (1) EP0475976B1 (en)
JP (1) JPH07113194B2 (en)
AU (1) AU633100B2 (en)
CA (1) CA2057880C (en)
DE (1) DE69007479T2 (en)
FI (1) FI101819B (en)
WO (1) WO1990015186A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI121820B (en) 2006-05-15 2011-04-29 Ramtec Oy Screening bucket and screening transmission module
CN106320049A (en) * 2015-06-29 2017-01-11 浙江永泰纸业集团股份有限公司 Control method for headbox of paper or paperboard

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2928466A (en) * 1955-12-27 1960-03-15 Ontario Paper Co Ltd Means for improving drainage on paper machines
US3052296A (en) * 1958-11-04 1962-09-04 Beloit Iron Works Uniflow fourdrinier
US3066068A (en) * 1960-09-08 1962-11-27 West Virginia Pulp & Paper Co Means for and method of improving drainage on fourdrinier machines
US3149026A (en) * 1961-09-26 1964-09-15 Beloit Iron Works Air assisted formation method and apparatus
GB1447486A (en) * 1972-07-26 1976-08-25 Jwi Ltd Blades for papermaking machines
FI49854C (en) * 1973-12-05 1975-10-10 Valmet Oy Procedure for streamlining the function of the wire section in a paper machine
US4306934A (en) * 1978-11-27 1981-12-22 Seppanen Erkki O Method and apparatus for forming paper

Also Published As

Publication number Publication date
AU5674890A (en) 1991-01-07
DE69007479T2 (en) 1994-06-23
EP0475976B1 (en) 1994-03-16
JPH04504148A (en) 1992-07-23
EP0475976A1 (en) 1992-03-25
CA2057880C (en) 1996-05-07
FI101819B1 (en) 1998-08-31
FI101819B (en) 1998-08-31
AU633100B2 (en) 1993-01-21
FI915762A0 (en) 1991-12-05
DE69007479D1 (en) 1994-04-21
JPH07113194B2 (en) 1995-12-06
WO1990015186A1 (en) 1990-12-13

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed