GB683983A - Improvements in or relating to papermaking method and apparatus - Google Patents

Improvements in or relating to papermaking method and apparatus

Info

Publication number
GB683983A
GB683983A GB23053/50A GB2305350A GB683983A GB 683983 A GB683983 A GB 683983A GB 23053/50 A GB23053/50 A GB 23053/50A GB 2305350 A GB2305350 A GB 2305350A GB 683983 A GB683983 A GB 683983A
Authority
GB
United Kingdom
Prior art keywords
flow
pulp
box
pipe
paper
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
GB23053/50A
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.)
International Paper Canada Inc
Original Assignee
International Paper Canada Inc
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 International Paper Canada Inc filed Critical International Paper Canada Inc
Publication of GB683983A publication Critical patent/GB683983A/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
    • D21F1/02—Head boxes of Fourdrinier machines
    • 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
    • D21F1/02—Head boxes of Fourdrinier machines
    • D21F1/026—Details of the turbulence section

Landscapes

  • Paper (AREA)

Abstract

683,983. Regulating flow of paper pulp. CANADIAN INTERNATIONAL PAPER CO. Sept. 20, 1950. [April 25, 1950] No. 23053/50. Class 96. Paper pulp is projected from pipes 5, 7, 11 into a flow-box 15 and through the outlet 18 to the wire-cloth of a paper-making machine, under conditions such that the flow in the box 15 is "frozen flow" i.e. non-streamline; non- turbulent flow, with the Reynolds number not above 2000, the velocity gradient very high at the sides, and the velocity substantially constant over the remainder of the cross-section. Such flow reduces the tendency to form fibrous flocs : any that are formed may be broken up by cage-type defloccing rolls 25. Each pipe 11 has an orifice-plate at its intake end and each pipe 7 an orifice plate 8. The pipes 11 are spotwelded together, and the spaces between them are filled with cement 12. The pulp in the box 15 may be under pressure of air supplied at 22, and there may be a small bleeder-pipe 23 at the intended height of the surface of the pulp.
GB23053/50A 1950-04-25 1950-09-20 Improvements in or relating to papermaking method and apparatus Expired GB683983A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US157869A US2737087A (en) 1950-04-25 1950-04-25 Headbox for paper machine

Publications (1)

Publication Number Publication Date
GB683983A true GB683983A (en) 1952-12-10

Family

ID=22565629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23053/50A Expired GB683983A (en) 1950-04-25 1950-09-20 Improvements in or relating to papermaking method and apparatus

Country Status (4)

Country Link
US (1) US2737087A (en)
AT (1) AT183642B (en)
FR (1) FR1030612A (en)
GB (1) GB683983A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860552A (en) * 1955-01-26 1958-11-18 Black Clawson Co Flow evener roll for paper making machines
US2847913A (en) * 1956-02-07 1958-08-19 Rice Barton Corp Stock inlet system for a paper making machine
US2879904A (en) * 1956-11-19 1959-03-31 Clear Fir Products Co Inc Feeding apparatus for fibrous particles
US2920699A (en) * 1956-12-14 1960-01-12 Sandy Hill Iron And Brass Work Paper making apparatus
US2911041A (en) * 1956-12-27 1959-11-03 Beloit Iron Works Stock distributor assembly
US2876684A (en) * 1957-02-06 1959-03-10 Sandy Hill Iron & Brass Works Head box
US3002558A (en) * 1957-12-21 1961-10-03 Voith Gmbh J M Flow distributor for fiber material for use in connection with paper making machines
US3067815A (en) * 1958-05-09 1962-12-11 Voith Gmbh J M Suspension distributing system
US3164513A (en) * 1961-12-14 1965-01-05 West Virginia Pulp & Paper Co Distributor system for a paper machine headbox
DE1236922B (en) * 1962-04-12 1967-03-16 Karlstad Mekaniska Ab Headbox for paper machines
NO124737B (en) * 1964-02-17 1972-05-29 Thunes Mek Vaerksted As
US3400044A (en) * 1965-05-27 1968-09-03 Beloit Corp Headbox flow control apparatus

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US851227A (en) * 1907-02-28 1907-04-23 Eibel Process Co Fourdrinier machine.
US1610742A (en) * 1924-07-25 1926-12-14 Bucking Carl Manufacture of paper
US1890634A (en) * 1930-12-23 1932-12-13 Wenzel Max Flow rectifier for paper stock
US1909150A (en) * 1931-10-21 1933-05-16 Bell-Irving Robert Fourdrinier head box and nozzle assembly
US2205693A (en) * 1936-03-21 1940-06-25 Milne Samuel Paper-making machine
US2156445A (en) * 1936-06-03 1939-05-02 Burke M Baxter Paper making apparatus
US2225435A (en) * 1936-08-06 1940-12-17 Paper Patents Co Paper making machine
US2186761A (en) * 1936-10-08 1940-01-09 Dominion Eng Works Ltd Paper making machine
US2347130A (en) * 1941-01-29 1944-04-18 Paper Patents Co Inlet system for paper machines
US2509822A (en) * 1946-12-21 1950-05-30 Beloit Iron Works Stock inlet

Also Published As

Publication number Publication date
FR1030612A (en) 1953-06-16
US2737087A (en) 1956-03-06
AT183642B (en) 1955-10-25

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