GB1309804A - Roll doctor apparatus - Google Patents

Roll doctor apparatus

Info

Publication number
GB1309804A
GB1309804A GB2744270A GB1309804DA GB1309804A GB 1309804 A GB1309804 A GB 1309804A GB 2744270 A GB2744270 A GB 2744270A GB 1309804D A GB1309804D A GB 1309804DA GB 1309804 A GB1309804 A GB 1309804A
Authority
GB
United Kingdom
Prior art keywords
support
roll
doctor
carrier
tube
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
GB2744270A
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.)
WINTERBURN Ltd JOSEPH
Original Assignee
WINTERBURN Ltd JOSEPH
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 WINTERBURN Ltd JOSEPH filed Critical WINTERBURN Ltd JOSEPH
Publication of GB1309804A publication Critical patent/GB1309804A/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21GCALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G3/00Doctors
    • D21G3/005Doctor knifes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F35/00Cleaning arrangements or devices

Landscapes

  • Paper (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Cleaning In General (AREA)

Abstract

1309804 Doctor apparatus for printing machines JOSEPH WINTERBURN Ltd 28 May 1971 [6 June 1970] 27442/70 Heading B6C [Also in Division D2] A roll doctor apparatus comprises a carrier 16 having an edge portion received in a channelshaped support 17 mounted on the carrier and supporting a doctor 30, and a tube 37 disposed between the carrier edge portion and the support and expansible by the introduction of fluid, e.g. air, into it to pivot the support about the axis of a pivot shaft 32 to cause the doctor to engage the roll 12, the tube 37 being covered by the support 17 and the external surfaces of the support being devoid of ribs. As shown, the roll is a drying roll of a paper-making machine acting on a paper web 13, but the invention may be applied to a bleaching, dyeing or printing machine. A further roll may be disposed beneath the web. The carrier 16 is pivoted on trunnions 19 and is adjustable by means 22 on a link 21. A second link 21 may be provided, the links being on opposite sides of the machine. The support 17 may be continuous and flexible but preferably comprises a plurality of side-byside sections, Fig. 2 (not shown), and each section comprises a sheet-metal Z-section having flanges 24 and 26 and a web 25, and a sheetmetal flange 28 riveted to the flange 26. The doctor 30 is releasably held in a U-shaped part 29 by spring clips 31. Pins 35 on the carrier 16 limit the pivotal movement of the support 17, or the flange 24 may be hooked round the shaft 32 and the pins 35 omitted. A second expansible tube 36 is provided for moving the doctor away from the roll. In a second embodiment, Fig. 3 (not shown), the second expansible tube is disposed at the same side of the carrier 16 as the first expansible tube but at the opposite side of the pivot shaft. The sections of the support 17 may be formed in one piece by extrusion. The second expansible tube may be dispensed with, the doctor being moved away from the roll by gravity.
GB2744270A 1970-06-06 1970-06-06 Roll doctor apparatus Expired GB1309804A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2744270 1970-06-06

Publications (1)

Publication Number Publication Date
GB1309804A true GB1309804A (en) 1973-03-14

Family

ID=10259666

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2744270A Expired GB1309804A (en) 1970-06-06 1970-06-06 Roll doctor apparatus

Country Status (6)

Country Link
US (1) US3748686A (en)
CA (1) CA925336A (en)
ES (1) ES197376Y (en)
FR (1) FR2095877A5 (en)
GB (1) GB1309804A (en)
SE (1) SE379219B (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1416161A (en) * 1972-01-01 1975-12-03 Winterburn Ltd Joseph Roll doctor apparatus
JPS4930043A (en) * 1972-07-18 1974-03-18
US3968742A (en) * 1974-07-30 1976-07-13 E. I. Du Pont De Nemours And Company Process for the concentration of pigment press cake
DE2555669C3 (en) * 1975-12-11 1984-10-18 J.M. Voith Gmbh, 7920 Heidenheim Device for scraping off excess coating
FR2527776A1 (en) * 1982-05-26 1983-12-02 France Etat DEVICE FOR MEASURING THE WATER CONTENT OF GRANULAR MATERIALS
NL191704C (en) * 1983-05-16 1996-04-02 Rodiac Intercessor Ltd Scraper for a conveyor belt.
US4528716A (en) * 1983-12-21 1985-07-16 Perneczky George C Apparatus for cleaning roller assemblies
US4665859A (en) * 1985-12-11 1987-05-19 Thermo Electron-Web Systems, Inc. Finger-type doctor blade holder
US4789432A (en) * 1987-06-08 1988-12-06 Thermo Electron Web Systems, Inc. Doctoring apparatus
US4906335A (en) * 1987-06-08 1990-03-06 Thermo Electron Web System, Inc. Doctoring apparatus
FI85895C (en) * 1988-11-18 1992-06-10 Valmet Paper Machinery Inc Method of compensating the bending of a maker and bending-compensated maker
DE19741518A1 (en) * 1997-09-20 1999-03-25 Voith Sulzer Papiermasch Gmbh Roller scraper for cleaning roller surface, used as web press roller for production or finishing webs of paper or textiles
BR0007856B1 (en) * 1999-01-29 2010-02-09 dosing apparatus and machine for processing a blanket.
FI105577B (en) 1999-02-03 2000-09-15 Valmet Corp Paper machine scraper equipment
FI105576B (en) 1999-02-03 2000-09-15 Valmet Corp Creator plant in connection with a roller / cylinder in a paper machine / cardboard machine
US6786999B2 (en) * 2001-04-18 2004-09-07 Kadant Web Systems, Inc. Doctor blade holder
US20060225647A1 (en) * 2005-04-07 2006-10-12 Reid Robert A Doctor blade holder
WO2007090045A1 (en) * 2006-01-31 2007-08-09 Kadant Inc. Keep for doctor blade holder
DE102006034654A1 (en) * 2006-07-24 2008-01-31 Voith Patent Gmbh doctor holder
WO2008022096A1 (en) * 2006-08-16 2008-02-21 Kadant Web Systems, Inc. Doctor blade holder permitting efficient assembly of doctor assemblies and replacement of doctor blades
ES2368881T3 (en) * 2007-12-06 2011-11-23 Kadant Inc. KNIFE HOLDER
JP5668304B2 (en) * 2010-03-23 2015-02-12 大日本印刷株式会社 Blade device for adjusting coating amount

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498213A (en) * 1946-06-17 1950-02-21 Lodding Engineering Corp Doctor device for rolls and cylinders
FI32443A (en) * 1958-01-10 1962-04-10 Rotary roller scraper
US3611471A (en) * 1968-06-19 1971-10-12 Valmet Oy Scraper device
US3564640A (en) * 1968-12-19 1971-02-23 Allis Chalmers Mfg Co Double cantilever supported doctor blade

Also Published As

Publication number Publication date
US3748686A (en) 1973-07-31
ES197376U (en) 1975-04-16
ES197376Y (en) 1975-09-01
SE379219B (en) 1975-09-29
CA925336A (en) 1973-05-01
FR2095877A5 (en) 1972-02-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees