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GB1224629A - An endless screen for a paper-making machine - Google Patents

An endless screen for a paper-making machine

Info

Publication number
GB1224629A
GB1224629A GB3102468A GB3102468A GB1224629A GB 1224629 A GB1224629 A GB 1224629A GB 3102468 A GB3102468 A GB 3102468A GB 3102468 A GB3102468 A GB 3102468A GB 1224629 A GB1224629 A GB 1224629A
Authority
GB
United Kingdom
Prior art keywords
filaments
layer
screen
transverse
longitudinal
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
GB3102468A
Inventor
Manfred Schoeller
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.)
Individual
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 GB1224629A publication Critical patent/GB1224629A/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
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D21F1/0036—Multi-layer screen-cloths

Landscapes

  • Paper (AREA)

Abstract

1,224,629. Papermaking screen. M. SCHOELLER. 28 June, 1968 [30 June, 1967], No. 31024/68. Heading DIR. An endless screen for a paper making machine comprises three layers of parallel synthetic filaments in which the filaments 1 in a first layer run across the width of the screen, the filaments 2 in a second layer, adjacent the first layer, run lengthwise of the screen and the filaments 3 in a third layer, adjacent the second layer, run across the screen. The filaments in adjacent layers are bonded to each other, e.g. by adhesive 6. There may be a fourth layer of filaments which run lengthwise of the screen. Preferably, (a) the number of filaments per cm. in the third (transverse) layer is between 10/13 and 10/17 ths or 10/23 and 10/27 ths of the number of filaments in the first (transverse) layer, (b) the ratio of the spatial distance between juxtaposed filaments in the first (transverse) layer to their diameter is between 0.8 and 1.8:1 and the number of filaments per cm is between 20 and 45, (c) the ratio of the diameters of the filaments in the third and first (transverse) layers is between 1 and 2:1 e.g. the filaments in the first layer may be 0.10-0.20 mm with the diameter of the filaments in the third layer being 0.15 to 0.25 mm, (d) the number of filaments per cm. in the second (longitudinal) layer is 1/3 to 2/3 of the filaments in the first (transverse) layer, (e) the ratio of the spatial distance between juxtaposed filaments in the second (longitudinal) layer to their diameter is 1.5 to 2.5:1 and the number of filaments is from 8 to 17, (f) the ratio of the diameters of the filaments in the second (longitudinal) and the first (transverse) layers is 1.2 to 2.5:1 e.g. the diameter of the filaments in the second layer may be 0.20-0.30 mm, (g) there are the same number of filaments in the second and fourth (longitudinal) layers and they are in exact vertical register, (h) the ratio of the diameters of the filaments in the fourth and second (longitudinal) layers is between 0.5 and 0.8. The filaments in the second (longitudinal) layer may be polyamide or hot-stretched polyester monofils. The adhesive which bonds the filaments may fill the reentrant wedges and form webs 6 standing on the filaments. The height of the webs 6 may be the same as 'the diameter of the filaments.
GB3102468A 1967-06-30 1968-06-28 An endless screen for a paper-making machine Expired GB1224629A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1561687 1967-06-30

Publications (1)

Publication Number Publication Date
GB1224629A true GB1224629A (en) 1971-03-10

Family

ID=5677618

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3102468A Expired GB1224629A (en) 1967-06-30 1968-06-28 An endless screen for a paper-making machine

Country Status (2)

Country Link
AT (1) AT302801B (en)
GB (1) GB1224629A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0186900A3 (en) * 1985-01-02 1986-08-13 Albany International Corp. Multilayered press felt
EP2199458A1 (en) 2008-12-22 2010-06-23 Helmbach GmbH & Co.KG Forming fabric

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5818497A (en) * 1981-07-17 1983-02-03 イ−・アイ・デユポン・デ・ニモアス・アンド・カンパニ− Papermaking belt

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0186900A3 (en) * 1985-01-02 1986-08-13 Albany International Corp. Multilayered press felt
EP2199458A1 (en) 2008-12-22 2010-06-23 Helmbach GmbH & Co.KG Forming fabric

Also Published As

Publication number Publication date
AT302801B (en) 1972-10-25

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