EP0072188A3 - Web forming machine - Google Patents

Web forming machine Download PDF

Info

Publication number
EP0072188A3
EP0072188A3 EP82304098A EP82304098A EP0072188A3 EP 0072188 A3 EP0072188 A3 EP 0072188A3 EP 82304098 A EP82304098 A EP 82304098A EP 82304098 A EP82304098 A EP 82304098A EP 0072188 A3 EP0072188 A3 EP 0072188A3
Authority
EP
European Patent Office
Prior art keywords
web
forming
forming roll
roll
bands
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.)
Withdrawn
Application number
EP82304098A
Other languages
German (de)
French (fr)
Other versions
EP0072188A2 (en
Inventor
Alexander Malashenko
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.)
Dominion Engineering Works Ltd
Original Assignee
Dominion Engineering Works 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 Dominion Engineering Works Ltd filed Critical Dominion Engineering Works Ltd
Publication of EP0072188A2 publication Critical patent/EP0072188A2/en
Publication of EP0072188A3 publication Critical patent/EP0072188A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • D21F9/003—Complete machines for making continuous webs of paper of the twin-wire type

Landscapes

  • Paper (AREA)

Abstract

A web-forming machine having first and second endless web-forming bands (12, 14) to receive stock in dewatering web-forming relationship therebetween, a source (18) for de­ positing stock on at least one said band (12), a first web-form­ ing roll (22) located within the loop of the first band (12 or 14), the first and second bands (12, 14) passing over an arcuate portion of substantially 30° to 60° of the first web-forming roll (22) in convergent wrapping relationship therewith, there be­ ing a second web-forming roll (24) which is adjacent the first web-forming roll (22) and is located within the loop of the sec­ ond band (14 or 12) so that the first and second bands (12, 14) pass over the second web-forming roll (24) in reverse wrap­ ping relationship thereabout, and means for dewatering the stock characterized in that the first web-forming roll (22) is an open, non-suction roll and said bands (12, 14) wrap the first web-forming roll (22) so that the web is only partially formed in a first web-forming zone (31) adjacent the first web-forming roll (22), there being bi-directional dewatering of the stock at the first web-forming roll (22) to form the outer faces of the web while leaving at least an interior portion of the web un­ formed, and there being reversal of internal water flow through a portion of the thickness of the web at a further web-forming zone (32) adjacent the second web-forming roll (24), whereby to complete the formation of the internal unformed portion of the web.
EP82304098A 1981-08-07 1982-08-03 Web forming machine Withdrawn EP0072188A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA383379 1981-08-07
CA000383379A CA1157302A (en) 1981-08-07 1981-08-07 Twin-wire web forming section

Publications (2)

Publication Number Publication Date
EP0072188A2 EP0072188A2 (en) 1983-02-16
EP0072188A3 true EP0072188A3 (en) 1984-03-07

Family

ID=4120630

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82304098A Withdrawn EP0072188A3 (en) 1981-08-07 1982-08-03 Web forming machine

Country Status (5)

Country Link
EP (1) EP0072188A3 (en)
JP (1) JPS5841993A (en)
BR (1) BR8204635A (en)
CA (1) CA1157302A (en)
FI (1) FI822705L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE458212B (en) * 1987-07-17 1989-03-06 Valmet Paper Machinery Inc FORMERS FORMING A PAPER PATH
US7070678B2 (en) 2001-11-30 2006-07-04 Kimberly-Clark Worldwide, Inc. Paper webs having a watermark pattern

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB949769A (en) * 1962-01-04 1964-02-19 Huyck Corp Method of and apparatus for dewatering wet webs of papermaking fibres
GB993837A (en) * 1963-04-29 1965-06-02 Pulp Paper Res Inst Apparatus for making formed fibrous webs
DE2627102A1 (en) * 1975-06-23 1977-01-20 Karlstad Mekaniska Ab METHOD AND DEVICE FOR FORMING A FIBER WEB
FR2348316A1 (en) * 1976-04-14 1977-11-10 Valmet Oy ENDLESS DOUBLE WHEEL FORMING SECTION OF PAPER MACHINE
US4209360A (en) * 1978-02-15 1980-06-24 Ab Karlstads Mekaniska Werkstad Two-sided drainage in a roll-type twin-wire former

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB949769A (en) * 1962-01-04 1964-02-19 Huyck Corp Method of and apparatus for dewatering wet webs of papermaking fibres
GB993837A (en) * 1963-04-29 1965-06-02 Pulp Paper Res Inst Apparatus for making formed fibrous webs
DE2627102A1 (en) * 1975-06-23 1977-01-20 Karlstad Mekaniska Ab METHOD AND DEVICE FOR FORMING A FIBER WEB
FR2348316A1 (en) * 1976-04-14 1977-11-10 Valmet Oy ENDLESS DOUBLE WHEEL FORMING SECTION OF PAPER MACHINE
US4209360A (en) * 1978-02-15 1980-06-24 Ab Karlstads Mekaniska Werkstad Two-sided drainage in a roll-type twin-wire former

Also Published As

Publication number Publication date
EP0072188A2 (en) 1983-02-16
CA1157302A (en) 1983-11-22
FI822705A0 (en) 1982-08-03
FI822705L (en) 1983-02-08
BR8204635A (en) 1983-07-26
JPS5841993A (en) 1983-03-11

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): DE FR GB IT SE

PUAL Search report despatched

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AK Designated contracting states

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STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19841108

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MALASHENKO, ALEXANDER