ES375667A1 - Improvements in the paper and similar machines. (Machine-translation by Google Translate, not legally binding) - Google Patents

Improvements in the paper and similar machines. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES375667A1
ES375667A1 ES375667A ES375667A ES375667A1 ES 375667 A1 ES375667 A1 ES 375667A1 ES 375667 A ES375667 A ES 375667A ES 375667 A ES375667 A ES 375667A ES 375667 A1 ES375667 A1 ES 375667A1
Authority
ES
Spain
Prior art keywords
fabric
sections
section
jet stream
formation zone
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
Application number
ES375667A
Other languages
Spanish (es)
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.)
Beloit Corp
Original Assignee
Beloit Corp
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 Beloit Corp filed Critical Beloit Corp
Publication of ES375667A1 publication Critical patent/ES375667A1/en
Expired 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

Improvements in papermaking machines and the like, and more particularly in the forming sections of papermaking machines to form a fibrous sheet from a dilute aqueous suspension of imbricated fibers that move together, leaving a gap (lle) as a tape-thin, substantially unidirectional, high-speed jet stream, comprising in combination opposite first and second (F1-F2) lengths of forming fabric circulating at substantially jet stream speeds (at) on first and second guidewires (15-16) respectively through an initially small space to receive the jet stream between them and (b) immediately afterwards through a gradual convergence towards a formation zone and to achieve parallelism general with the wet fibrous sheet placed between them, in which parallelism the fabric sections are kept while they flow downstream together, (c) successively on third and fourth guidewires (18, 28-19), characterized in that the third guidewires (18, 28) has a fixed, smooth and elongated surface that forces the second section (F2) of fabric through of said gradual convergence against the first section (F1) of fabric in the formation zone, effecting a substantial extraction of water from the formation zone through the first section (F1) of fabric and the formation of a wet sheet (W) located between the sections (F1, F2) of fabric, the first and fourth guides (15-19) presenting rotating surfaces to support the first section (F1) of fabric between them, deformable under tension and free of contact restrictive means with it at opposite points of the formation zone, the fourth guidewire (19) being a relatively large cylinder that has a foraminous peripheral surface (19a) in contact with the fabric sections (F1, F2) and that guides said sections in parallelism through a curve out of the direction of the jet stream in the slit, with a rate of rotation sufficient to draw water through and out of the first section (F1) of fabric. (Machine-translation by Google Translate, not legally binding)
ES375667A 1969-02-03 1970-01-07 Improvements in the paper and similar machines. (Machine-translation by Google Translate, not legally binding) Expired ES375667A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79595469A 1969-02-03 1969-02-03

Publications (1)

Publication Number Publication Date
ES375667A1 true ES375667A1 (en) 1972-05-16

Family

ID=25166875

Family Applications (1)

Application Number Title Priority Date Filing Date
ES375667A Expired ES375667A1 (en) 1969-02-03 1970-01-07 Improvements in the paper and similar machines. (Machine-translation by Google Translate, not legally binding)

Country Status (10)

Country Link
JP (1) JPS4917607B1 (en)
BE (1) BE744759A (en)
BR (1) BR7015957D0 (en)
CA (1) CA928544A (en)
CH (1) CH502477A (en)
DE (1) DE2000661C3 (en)
ES (1) ES375667A1 (en)
FR (1) FR2031112A5 (en)
GB (1) GB1288277A (en)
NL (1) NL6918126A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI313874A (en) * 1974-10-25 1976-04-26 Valmet Oy
JPS54169550U (en) * 1978-05-17 1979-11-30
JPS55463U (en) * 1978-06-17 1980-01-05
JPS58114115U (en) * 1982-01-29 1983-08-04 株式会社灘屋 wallet
DE3926440A1 (en) * 1989-08-10 1991-02-14 Voith Gmbh J M DRAINAGE DEVICE, IN PARTICULAR BAND PRESSURE FILTERS
DE4102065C2 (en) * 1991-01-24 1996-02-01 Voith Sulzer Papiermasch Gmbh Twin wire former
DE4117597A1 (en) * 1991-05-29 1992-12-03 Voith Gmbh J M DOUBLE SCREEN FOR A PAPER MACHINE
SE539956C2 (en) * 2016-11-28 2018-02-13 Valmet Oy A forming section for forming a fibrous web, a papermaking machine comprising a forming section and a method of forming a fibrous web

Also Published As

Publication number Publication date
FR2031112A5 (en) 1970-11-13
GB1288277A (en) 1972-09-06
CA928544A (en) 1973-06-19
BR7015957D0 (en) 1973-01-18
NL6918126A (en) 1970-08-05
CH502477A (en) 1971-01-31
DE2000661A1 (en) 1970-09-03
DE2000661B2 (en) 1978-07-27
DE2000661C3 (en) 1979-03-22
BE744759A (en) 1970-07-01
JPS4917607B1 (en) 1974-05-02

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