US3377236A - Drainage element - Google Patents

Drainage element Download PDF

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Publication number
US3377236A
US3377236A US436893A US43689365A US3377236A US 3377236 A US3377236 A US 3377236A US 436893 A US436893 A US 436893A US 43689365 A US43689365 A US 43689365A US 3377236 A US3377236 A US 3377236A
Authority
US
United States
Prior art keywords
wire
leading
foil
trailing
dewatering
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 - Lifetime
Application number
US436893A
Other languages
English (en)
Inventor
Alvin C Roecker
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
Priority to US436893A priority Critical patent/US3377236A/en
Priority to GB48125/65A priority patent/GB1116963A/en
Priority to DE19661511191 priority patent/DE1511191A1/de
Priority to FI660488A priority patent/FI42913C/fi
Priority to SE2790/66A priority patent/SE319683B/xx
Application granted granted Critical
Publication of US3377236A publication Critical patent/US3377236A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D21F1/48—Suction apparatus
    • D21F1/483—Drainage foils and bars
    • D21F1/486—Drainage foils and bars adjustable

Definitions

  • a portion only of the upper surface of the foil is provided with a hard mirror finish coating.
  • the foil is coated over the limited area preferably with a tungsten carbide, a Satellite, titanium carbide or a ceramic crystalline refractory metal oxide such as aluminum oxide polished to a mirror finish.
  • the ceramic material coating will form a thin monolithic surface layer over the foils polished to a mirror finish in the range of 4 to 15 micro inches.
  • the coating has a construction somewhat similar to and may be applied in accordance with the teachings found in the copending application of Charles W. E. Walker entitled, Suction Box Cover, U.S.- Ser. No. 15 0,917, filed Nov. 8, 1961, which is incorporated herein by reference.
  • An important feature of the invention is the formation of the leading portion 15 of the surface in an ar'cuate shape.
  • the are is formed with its center C preferably arrangements heretofore coincident with the center C of the pintle 11 supporting the foil. With this arrangement the change in angle of the ofirunning or trailing portion 13 of the surface relative to the wire will not change the relationship between the wire and the upper surface portion 15 at least for a substantial distance in advance of the intermediate wire contact location 17.
  • a stationary dewatering member in association with the wire and having a dewatering surface, said surface having a leading portion and a trailing portion relative to the direction of Wire travel and having a leading edge at the beginning of said arcuate leading portion, the trailing portion of said surface being planar and diverging away from the wire at a small angle, the leading portion of said surface being areuate in shape and leading toward the wire to an engaging portion between said leading and trailin portions,

Landscapes

  • Paper (AREA)
US436893A 1965-03-03 1965-03-03 Drainage element Expired - Lifetime US3377236A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US436893A US3377236A (en) 1965-03-03 1965-03-03 Drainage element
GB48125/65A GB1116963A (en) 1965-03-03 1965-11-12 Fourdrinier foils in paper-making machines
DE19661511191 DE1511191A1 (de) 1965-03-03 1966-02-23 Entwaesserungselement fuer Papiermaschinen
FI660488A FI42913C (fi) 1965-03-03 1966-02-26 Vedenpoistoelin
SE2790/66A SE319683B (enrdf_load_html_response) 1965-03-03 1966-03-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US436893A US3377236A (en) 1965-03-03 1965-03-03 Drainage element

Publications (1)

Publication Number Publication Date
US3377236A true US3377236A (en) 1968-04-09

Family

ID=23734247

Family Applications (1)

Application Number Title Priority Date Filing Date
US436893A Expired - Lifetime US3377236A (en) 1965-03-03 1965-03-03 Drainage element

Country Status (5)

Country Link
US (1) US3377236A (enrdf_load_html_response)
DE (1) DE1511191A1 (enrdf_load_html_response)
FI (1) FI42913C (enrdf_load_html_response)
GB (1) GB1116963A (enrdf_load_html_response)
SE (1) SE319683B (enrdf_load_html_response)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1761838B1 (de) * 1968-07-12 1972-01-05 Voith Gmbh J M Entwaesserungsleiste fuer Langsieb-Papiermaschinen
DE2229509A1 (de) * 1971-07-01 1973-01-11 Heinrich Ing Bartelmuss Maschinenteile
US4061532A (en) * 1975-09-02 1977-12-06 Escher Wyss Gmbh Adjustable suction device for a paper machine
US4184915A (en) * 1978-12-08 1980-01-22 Wilbanks International, Inc. Drainage foil apparatus with individually replaceable ceramic segments
US4447296A (en) * 1982-03-29 1984-05-08 Champion International Corporation Double nip hydrofoil
US6361657B2 (en) 1999-11-17 2002-03-26 Mcpherson Douglas R. Twin fabric forming section blade mounting

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5169500A (en) * 1991-10-15 1992-12-08 Wilbanks International Adjustable angle foil for paper making machine with rigid foil body and cam actuation means

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017930A (en) * 1959-06-24 1962-01-23 Lodding Engineering Corp Adjustable supports for fourdrinier screen wires
US3239409A (en) * 1963-05-24 1966-03-08 Gen Electric Canada Water extracting device for paper machines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017930A (en) * 1959-06-24 1962-01-23 Lodding Engineering Corp Adjustable supports for fourdrinier screen wires
US3239409A (en) * 1963-05-24 1966-03-08 Gen Electric Canada Water extracting device for paper machines

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1761838B1 (de) * 1968-07-12 1972-01-05 Voith Gmbh J M Entwaesserungsleiste fuer Langsieb-Papiermaschinen
DE2229509A1 (de) * 1971-07-01 1973-01-11 Heinrich Ing Bartelmuss Maschinenteile
US4061532A (en) * 1975-09-02 1977-12-06 Escher Wyss Gmbh Adjustable suction device for a paper machine
US4184915A (en) * 1978-12-08 1980-01-22 Wilbanks International, Inc. Drainage foil apparatus with individually replaceable ceramic segments
US4447296A (en) * 1982-03-29 1984-05-08 Champion International Corporation Double nip hydrofoil
US6361657B2 (en) 1999-11-17 2002-03-26 Mcpherson Douglas R. Twin fabric forming section blade mounting

Also Published As

Publication number Publication date
GB1116963A (en) 1968-06-12
DE1511191A1 (de) 1969-06-12
SE319683B (enrdf_load_html_response) 1970-01-19
FI42913B (enrdf_load_html_response) 1970-08-03
FI42913C (fi) 1970-11-10

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