GB1336713A - Paper- or board-making machines - Google Patents

Paper- or board-making machines

Info

Publication number
GB1336713A
GB1336713A GB1336713DA GB1336713A GB 1336713 A GB1336713 A GB 1336713A GB 1336713D A GB1336713D A GB 1336713DA GB 1336713 A GB1336713 A GB 1336713A
Authority
GB
United Kingdom
Prior art keywords
wire
shoe
water
suction
wires
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
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 Walmsley Ltd
Original Assignee
Beloit Walmsley 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 Beloit Walmsley Ltd filed Critical Beloit Walmsley Ltd
Publication of GB1336713A publication Critical patent/GB1336713A/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
    • 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
    • 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

1336713 Papermaking WALMSLEYS (BURY) Ltd 25 Nov 1970 [6 Dec 1969 30 June 1970] 59695/69 and 31689/70 Heading D2A A paper or board making machine comprises twin wires 14, 16 extending over an impervious curved shoe 22, and a head box 24 for feeding stock between the wires. Doctors 26, 28 direct water into savealls 30, 32. Suction rolls 34, 36 facilitate transfer of a web formed between the wires to a wire or felt 10 which may be fed successively with further webs in a similar manner to form a multi-ply web, Fig. 2 (not shown), or which may be carrying webs formed previously on Fourdrinier machine and Inverform machines, Fig. 3 (not shown). In a second embodiment, Fig. 4 (not shown), suction boxes facilitate transferring the web to the wire or felt 10. In a third embodiment, Fig. 5 (not shown), a wire similar to the wire or felt 10 forms the bottom wire of the twin wires which after passing over the curved shoe pass between a suction roll and a suction box, and the headbox is pivotally mounted for adjustment of the height of the stock outlet. The top wire is tensioned by a device which is pivoted to a frame and actuated by a pneumatic cylinder to move a tensioning roller engaging the wire. A breast upper forming roller is supported pivotally and is adjustable by a screw jack, and the shoe is pivoted at its trailing end and is adjustably supported on a screw jack at its leading end. Downstream of the shoe a water-collecting device is adjustably mounted above the top wire and comprises a blade or scoop engaging the top wire and directing water upwardly through a channel discharging over a weir into a drained container subject to vacuum applied to the top of the container through passages formed between louvres preventing water splashing up the passages. The leading end of the shoe may have a curved or chisel-shaped nose. In a third embodiment, Fig. 6 (not shown), water is collected from the upper surface of the top wire and downstream by a suction box having a snout at its leading edge to collect free water and a high vacuum section at its rear.
GB1336713D 1969-12-06 1969-12-06 Paper- or board-making machines Expired GB1336713A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5969569 1969-12-06

Publications (1)

Publication Number Publication Date
GB1336713A true GB1336713A (en) 1973-11-07

Family

ID=10484251

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1336713D Expired GB1336713A (en) 1969-12-06 1969-12-06 Paper- or board-making machines

Country Status (1)

Country Link
GB (1) GB1336713A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3100713A1 (en) * 1980-11-26 1982-07-01 Escher Wyss Gmbh, 7980 Ravensburg PAPER MACHINE WITH TWO MOVABLE WATERPROOF DRAINAGE TAPES, E.g. SEVEN"
US4609435A (en) * 1984-01-20 1986-09-02 Valmet Oy Process and equipment in the forming of paper web
US4686004A (en) * 1983-12-30 1987-08-11 Mitsubishi Jukogyo Kabushiki Kaisha Twin-wire former for papermaking machine
US4830709A (en) * 1987-05-01 1989-05-16 Beloit Corporation Multi-ply web forming apparatus and method
US4894120A (en) * 1986-04-30 1990-01-16 Beloit Corporation Twin wire forming apparatus
US4960492A (en) * 1988-02-09 1990-10-02 J.M. Voith Gmbh Common wire path of a wet end section of a twin wire paper making machine
US5468348A (en) * 1990-07-10 1995-11-21 Beloit Technologies, Inc. Multi-ply web former and method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3100713A1 (en) * 1980-11-26 1982-07-01 Escher Wyss Gmbh, 7980 Ravensburg PAPER MACHINE WITH TWO MOVABLE WATERPROOF DRAINAGE TAPES, E.g. SEVEN"
US4686004A (en) * 1983-12-30 1987-08-11 Mitsubishi Jukogyo Kabushiki Kaisha Twin-wire former for papermaking machine
US4609435A (en) * 1984-01-20 1986-09-02 Valmet Oy Process and equipment in the forming of paper web
US4894120A (en) * 1986-04-30 1990-01-16 Beloit Corporation Twin wire forming apparatus
US4830709A (en) * 1987-05-01 1989-05-16 Beloit Corporation Multi-ply web forming apparatus and method
US4960492A (en) * 1988-02-09 1990-10-02 J.M. Voith Gmbh Common wire path of a wet end section of a twin wire paper making machine
US5468348A (en) * 1990-07-10 1995-11-21 Beloit Technologies, Inc. Multi-ply web former and method

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees