US3748686A - Roll doctor apparatus - Google Patents

Roll doctor apparatus Download PDF

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Publication number
US3748686A
US3748686A US00149573A US3748686DA US3748686A US 3748686 A US3748686 A US 3748686A US 00149573 A US00149573 A US 00149573A US 3748686D A US3748686D A US 3748686DA US 3748686 A US3748686 A US 3748686A
Authority
US
United States
Prior art keywords
channel
carrier
support
roll
flange
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
US00149573A
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English (en)
Inventor
C Winterburn
T Scholes
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.)
JOSEPH WINTERBURN Ltd GB
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
Application granted granted Critical
Publication of US3748686A publication Critical patent/US3748686A/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
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G3/00—Doctors
    • D21G3/005—Doctor knifes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices

Definitions

  • ABSTRACT Apparatus for doctoring a roll for example in a papermaking machine comprising a doctor blade support of channel form in a number of side-by-side sections for example of sheet metal, the support being pivotally mounted on a carrier projecting into the channel, and two inflatable tubes interposed between the carrier and the support for pivoting the support to cause the doctor blade to engage with or disengage from the roll.
  • the walls of the channel are substantially continuous and cover completely the tubes and the external surfaces of the channel are provided by smooth, plane and/or curved surfaces which are devoid of ribs.
  • This invention relates to roll doctor apparatus for use with a roll in, for example, a paper-making, bleaching, dyeing or printing machine.
  • the invention is particularly applicable to the drying rolls of paper-making machines and will be described in relation thereto, but it is to be understood that there is no limitation in this regard.
  • the apparatus should be capable of allowing for the chamber of a long roll while providing substantially uniform pressure on the roll by the doctor blade along the length of the roll.
  • a third important requirement of roll doctor apparatus is that it should be possible to lift the blade off the roll when the machine is idle or for maintenance and replacement purposes.
  • An aim of a preferred embodiment of the invention is to provide a roll doctor apparatus which also fulfils the third requirement mentioned above.
  • a roll doctor apparatus comprising a carrier; a flexible support (as hereinafter defined) of generally channel section mounted on the carrier for pivoting about an axis parallel to the length of the channel, an edge portion of the carrier being received within the channel; a flexible doctor blade (as hereinafter defined) mounted on the support to project externally of the channel and away from the carrier; and a tube which is interposed between the said edge portion of the carrier and a wall of the channel and is expansible by the introduction of fluid into it so as to pivotthe support relatively to the carrier and cause the doctor blade to engage the roll, characterised in that the walls of the channel are substantially continuous and overlie completely said tube and the external surfaces of the channel are provided by smooth surfaces which are devoid of ribs.
  • any pulp or other material which passes the doctor blade is not encouraged to hang on to the external surfaces of the channel because of their shape and because of the absence of ribs which project from the external surfaces of the channel and which have substantial longitudinal extents in directions perpendicular to the pivot axis of the support, such as are provided on the cranked levers in the apparatus described in the aforementioned complete specification.
  • means are provided for positively lifting the doctor blade off the roll and such means comprises a second expansible tube which is interposed between the edge portion of the carrier and a wall of the channel and is expansible by the introduction of fluid into it so as to pivot the support relatively to the carrier and cause the doctor blade to lift from the roll. If such a tube is provided then it is substantially covered by the wall of the channel which it engages so as to prevent it being punctured during clearing of the machine by a spiked rod or stick as described above.
  • two expansible tubes may be arranged in one of two manners.
  • the tubes may be on the same side face of the carrier and on opposite sides of the pivot axis of the doctor blade support so that both tubes engage the same side wall of the channel of the support.
  • the tubes may be mounted on opposite side faces of the carrier so that one tube engages one side wall of the channel of the support and the other tube engages the other sidewall of the channel.
  • the support and the blade are flexible we mean that they are arranged so that the blade can engage the roll throughout the whole length thereof when the blade is urged into engagement with the roll by the expansible tube or the relevant one of the expansible tubes.
  • the blade itself will normally be in one piece except when it is used with a very long roll, in which case it may be in a number of sections, and will be constructed so that it can flex about axes transverse to its length.
  • the support may be continuous along the length of the roll and of sufficient flexibility about axes transverse to its length to enable the blade to engage the roll throughout the length of the latter.
  • the support may be in a number of sideby-side sections pivoted to the carrier. In the latter case the sections will be arranged side-by-side at such spacing as substantially to cover the expansible tube or tubes.
  • the support is continuous or made in sideby-side sections it may be made from sheet metal or from an extrusion.
  • the support preferably comprises a generally Z-shaped member of sheet metal having first and second approximately parallel flanges separated by a web integral therewith and a third flange of sheet metal secured to the second flange and forming, with the first flange, the side walls of the channel or parts thereof, the base of the channel or a part thereof being formed by the web.
  • the second and third flanges together and this may be effected by welding or other techniques or it may be necessary to rivet together the two flanges.
  • the rivet heads would form small projections from the otherwise smooth external surfaces of the channel but there would still be no ribs having substantial longitudinal extents perpendicular to the pivot axis to provide cavities in which could accumulate material from the roll being doctored.
  • the support or the sections thereof could be formed of an extruded section of similar shape to that obtained by securing together a Z-shaped mem ber and said third flange as described above.
  • first or third flange of the support or each support section is formed with a transverse groove of curved cross section which embraces a pivot shaft mounted on the carrier. This arrangement provides a simple pivotal mounting for the support.
  • the first flange or/and the third flange of the support or each support section are shaped so that the end thereof remote from the doctor blade is disposed nearer to the carrier than the remainder of the flange.
  • the mouth of the channel is narrower than the channel itself so as to provide further protection for the tube or tubes against damage.
  • the carrier may have means arranged to cooperate with the support to limit the pivotal movement of the support towards the roll.
  • the support will be provided with means for mounting the doctor blade and such means may be a slot opening towards the roll to receive the blade, the slot having a base which forms an abutment for the edge of the blade remotefrom the roll and the blade carrying a number of springs which are engaged in the slot to hold the blade in position.
  • FIG. 1 is a part sectional view of roll doctor apparatus constituting a first embodiment of the invention taken on the line II of FIG. 2;
  • FIG. 2 is a plan view of part of the apparatus shown in FIG. 1;
  • FIG. 3 is a view similar to FIG. 1 of roll doctor apparatus constituting a second embodiment of the invention.
  • the two embodiments of the invention illustrated in the drawings are similar in that they each comprise a base carrying two spaced bearing housings, of which one is shown at 11, supporting between them a roll 12, (for example a drying roll in a paper-making machine) for acting upon a web 13 (of paper) the ends of the roll being formed with trunnions 14 which are received in the bearings.
  • the web 13 is shown travelling in a horizontal path although its path could be disposed at an inclination to the horizontal.
  • a further roll could be disposed beneath the roll 12 so that the web passes through the nip between them.
  • the base 10 also carries two spaced bearing housings, of which one is shown at 15, supporting between them a carrier 16 for a doctor blade support generally designated 17.
  • the carrier is of angle form and has welded to the outer face of its vertical limb two aligned square section bars, one of which is shown at 18, whose projecting ends are formed to provide trunnions 19 received in the bearings of the housings 15.
  • One of the trunnions 19 namely the one seen in the drawings, has keyed to it a radially extending arm 20 which is pivotally connected at its outer end to one end of a torque link 21, the other end of this link being pivotal on a fixed part of the base 10.
  • the torque link arrangement prevents pivoting of the carrier 16 about the common axis of the trunnions 19.
  • the torque link 21 incorporates adjusting means 22 whereby the disposition of the carrier 16 can be varied as required.
  • a further torque link arrangement may be provided at the opposite side of the machine depending on the width of the latter.
  • the doctor blade support 17 is generally of channel shape and the horizontal limb of the carrier 16 is received in the channel.
  • the support comprises a number of sections 23, as shown in'FIG. 2, arranged closely side by side on the carrier. In an alternative arrangement (not shown) the support may be continuous along the whole length of the roll 12.
  • Each section 23 comprises a Z- section member of sheet metal having a first flange 24, a web 25, and a second flange 26, the flanges 24 and 26 being generally parallel to one another with the web 25 extending at right angles thereto and forming the base of the channel.
  • a third flange 28 of sheet metal Secured to the second flange 26 by rivets 27 is a third flange 28 of sheet metal, the two flanges 24 and 28 forming the side walls of the channel.
  • the flange 26 is formed with a U-shaped portion 29 which provides, with the opposed portion of the flange 28, a slot which receives a doctor blade 30, the base of the slot providing an abutment for the edge of the doctor blade 30 remote from that part which engages the roll 12, and the blade being provided along its said edge with a series of spring clips 31 holding the blade in position in the slot.
  • the support 17 is mounted on the carrier 16 for pivoting about a pivot shaft 32 mounted between brackets 33 depending from the carrier and in the embodiment shown the flange 24 is provided with a transverse portion 34 of curved cross section which embraces the shaft 32. Screwed into apertures in the carrier 16 are a number of bins 35 which engage in slots in the free edge portion of the flange 24 to prevent the support moving horizontally towards the roll 12 and to limit the pivotal movement thereof.
  • the arrangement may be modified by forming the free edge portion of the flange 24 so that it hooks around the shaft 32 thus dispensing with the pins 35.
  • two inflatable tubes 36 and 37 Mounted on opposite side faces of the horizontal limb of the carrier 16 are two inflatable tubes 36 and 37, one tube engaging one side wall of the channel of the support 17 and the other tube engaging the other side wall.
  • the ends of the tubes are closed by two elements of which one is shown at 38, and this element has two air lines 39 (shown diagrammatically in FIG. 2) connected to it and communicating with the respective tubes.
  • the two air lines are connected to a common source of compressed air 40, and each line incorporates a valve 41 for controlling the air pressure in the associated tube.
  • the walls of the channel of the support 17 provided by the flanges 24 and 28 substantially completely cover the inflatable tubes 36 and 37 so as to protect them from being damaged during clearing of the machine by means of a spiked rod or stick and to prevent material from the roll 12 getting between the carrier 16 and the said flanges.
  • the flanges 24 and 28 are so shaped that their free edge portions remote from the roll 12 are disposed nearer to the carrier than their portions adjacent the base of the channel, the flange 28 being provided with a cranked portion 42 for this purpose.
  • the external surfaces of the channel shaped support 17 formed by the flanges 24 and 28 and the web 25 are smooth and either plane or curved and do not have any ribs on them which have substantial longitudinal extents perpendicular to the shaft 32. It follows that the cavities in which material can accumulate on the support are limited and there is little danger that material will accumulate on the support and drop on to the web 13 being acted upon by the roll 12.
  • the doctor blade 30 is urged into engagement with the surface of the roll 12 by introducing compressed air into the tubes 36 and 37 with a greater pressure in the tube 37 than in the tube 36 so that the tube 37 expands to a greater extent.
  • the tube 36 merely acts as a steady when the blade is being forced into engagement with the roll 12.
  • the support 17 must be sufficiently flexible for the blade to be able to be engaged with the roll over the whole length of the roll and this is effected either by making the support in a number of sections as illustrated or by making the support continuous but of sufficient flexibility about axes perpendicular to the shaft 32 to enable the blade to engage the roll throughout the length thereof.
  • the support 17 By introducing a greater air pressure into the tube 36 than into the tube 37 the support 17 can be pivoted to lift the doctor blade 30 from the roll.
  • the support 17 in this embodiment is similar in construction to the support of the embodiment shown in FIGS. 1 and 2.
  • the support is in a number of sections each comprising a generally Z-shaped sheet metal member having a first flange 43, a web 44 and a second flange 45, the web being disposed at an inclination to the parallel flanges.
  • a third flange 46 of sheet metal is riveted to the flange 45.
  • Riveted to the flanges 45 and 46 is a U-shaped blade support 47 which provides a slot to receive a doctor blade 48, the base of the slot forming an abutment for the edge of the blade remote from the roll 12 and the blade being provided with spring clips 49 to hold it in the slot. 6
  • the flange 43 is provided with a transverse arcuate portion 50 which embraces a shaft 57 supported by brackets 52 on the carrier 16.
  • the arcuate portion 50 extends round more than 180 so that it is prevented from becoming disengaged from the shaft 51.
  • two inflatable tubes 53 and 54 Arranged on opposite sides of the shaft 51 are two inflatable tubes 53 and 54 which are interposed between one side face of the horizontal limb of the carrier 16 and one side wall of the channel of the support 17.
  • the tubes 53 and'54 are closed by end elements 55 and are connected to a pneumatic circuit similar to that shown in FIG. 2.
  • Engagement of the doctor blade 48 with the roll 12 is effected by introducing a greater air pressure into the tube 54 than into the tube 53, and lifting of the blade from the roll is performed by introducing a greater air pressure into the tube 53 than into the tube 54.
  • the channel shaped support 17 whose walls are provided by the flanges 43 and 46 and the web 44 has smooth, plane or curved external surfaces which prevent the build up of material thereon and also that the flange 43 substantially covers both of the tubes 53 and 54.
  • the flange 46 is shaped so that its free end portion is inclined towards the carrier. The tubes are thus protected from accidental damage.
  • the support 17 may be formed as one continuous member'instead of being in a number of side by side sections. In either case it will be sufficiently flexible to allow the doctor blade to engage the roll throughout the whole length of the latter.
  • the parts of the support are made from sheet metal and are riveted together.
  • the parts in one piece as an extrusion or to fix them together by some othermeans.
  • the invention provides an improved roll doctor apparatus in which the expansible tubes are protected and in which the external surfaces of the blade support discourage the build up of material thereon.
  • the tube serving to lift the doctor blade from the roll can be dispensed with if the apparatus is mounted in such a position that the blade will become disengaged from the roll by gravity.
  • a roll doctor apparatus comprising a. a carrier; t r
  • a flexible support of generally channel section mounted on the carrier for pivoting relative to the latter about an axis parallel to the length of the channel, the carrier having an edge portion which is received within the channel and the support comprising a generally Z-shaped member of sheet metal which has first and second approximately parallel flangesseparated by a web integral therewith, and a member of sheet metal secured to-the second flange and providing a third flange which forms, with the first flange, the side walls of the channel, the base of the channel being formed by the web;
  • e. means for introducing fluid into the tube to expand it so as to pivot the support relative to the carrier and cause the doctor blade to engage the roll.
  • a roll doctor apparatus comprising a. a carrier;
  • a flexible support having two spaced approximately parallel flanges joined by a web which extends approximately at right angles to said flanges and, with the latter, forms a channel, and a further flange which projects from the web in a direction away from the channel, the carrier having an edge portion which extends away from the mounting and is received within the channel;
  • pivot means between said edge portion of the carrier and said support whereby the latter is mounted on the carrier for pivoting relative thereto about an axis parallel to the length of the channel;
  • a flexible doctor blade mounted on said further flange of the support and extending in a direction away from the channel;
  • a tube which is interposed between the said edge portion of the carrier and a wall of the channel, the walls of the channel being substantially continuous and overlying completely the said tube and the external surfaces of the channel being provided by smooth unribbed surfaces;
  • g. means for introducing fluid into the tube to expand it so as to pivot the support relatively to the carrier and cause the doctor blade to engage the roll.

Landscapes

  • Paper (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Cleaning In General (AREA)
US00149573A 1970-06-06 1971-06-03 Roll doctor apparatus Expired - Lifetime US3748686A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
US3748686A true US3748686A (en) 1973-07-31

Family

ID=10259666

Family Applications (1)

Application Number Title Priority Date Filing Date
US00149573A Expired - Lifetime US3748686A (en) 1970-06-06 1971-06-03 Roll doctor apparatus

Country Status (6)

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

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3803665A (en) * 1972-01-01 1974-04-16 Winterburn Ltd Joseph Roll doctor apparatus
US3927936A (en) * 1972-07-18 1975-12-23 Canon Kk Blade type cleaning device in an electrophotographic copying machine of the image transfer type
US3968742A (en) * 1974-07-30 1976-07-13 E. I. Du Pont De Nemours And Company Process for the concentration of pigment press cake
US4169425A (en) * 1975-12-11 1979-10-02 J. M. Voith Gmbh Apparatus for removing the surplus of coating compound in paper coating machines
US4528716A (en) * 1983-12-21 1985-07-16 Perneczky George C Apparatus for cleaning roller assemblies
US4546645A (en) * 1982-05-26 1985-10-15 L'etat Francais Represente Par Le Ministere De L'urbanisme Et Du Logement, Laboratoire Central Des Ponts Et Chaussees Measuring device for the moisture content of granular materials
US4665859A (en) * 1985-12-11 1987-05-19 Thermo Electron-Web Systems, Inc. Finger-type doctor blade holder
US4694952A (en) * 1983-05-16 1987-09-22 Rodiac Intercessor Ltd. Scraper cleaning apparatus for reversible conveyor belts
EP0294992A3 (en) * 1987-06-08 1989-08-23 Thermo Electron-Web Systems, Inc. Doctoring apparatus
US4906335A (en) * 1987-06-08 1990-03-06 Thermo Electron Web System, Inc. Doctoring apparatus
US5108794A (en) * 1988-11-18 1992-04-28 Valmet Paper Machinery Inc. Method for compensation of doctor blade deflection
DE19741518A1 (de) * 1997-09-20 1999-03-25 Voith Sulzer Papiermasch Gmbh Schaber
WO2000044981A1 (en) * 1999-01-29 2000-08-03 Thermo Web Systems, Inc. Doctor blade mounting assembly
WO2000046445A1 (en) * 1999-02-03 2000-08-10 Metso Paper, Inc. Doctor assembly in a paper machine with a jointed bearing
WO2002086237A1 (en) * 2001-04-18 2002-10-31 Kadant Web Systems Inc. Doctor blade holder
US6547932B1 (en) 1999-02-03 2003-04-15 Metso Paper, Inc. Doctor equipment in connection with a roll/cylinder in a paper/board machine
US20060225647A1 (en) * 2005-04-07 2006-10-12 Reid Robert A Doctor blade holder
US20070174990A1 (en) * 2006-01-31 2007-08-02 Kadant Web Systems Keep for doctor blade holder
EP1882776A1 (de) * 2006-07-24 2008-01-30 Voith Patent GmbH Schaberhalter
US20080190579A1 (en) * 2006-08-16 2008-08-14 Kadant Web Systems, Inc. Doctor blade holder permitting efficient assembly of doctor assemblies and replacement of doctor blades
US20090148208A1 (en) * 2007-12-06 2009-06-11 Kadant Web Systems, Inc. Integrated doctor blade holders
RU2361028C1 (ru) * 2005-04-07 2009-07-10 Кадант Веб Системз, Инк. Ракельное устройство
JP2011194350A (ja) * 2010-03-23 2011-10-06 Dainippon Printing Co Ltd 塗工量を調整するブレード装置

Citations (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 (fi) * 1958-01-10 1962-04-10 Pyörivien telojen kaavinlaite
US3564640A (en) * 1968-12-19 1971-02-23 Allis Chalmers Mfg Co Double cantilever supported doctor blade
US3611471A (en) * 1968-06-19 1971-10-12 Valmet Oy Scraper device

Patent Citations (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 (fi) * 1958-01-10 1962-04-10 Pyörivien telojen kaavinlaite
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

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3803665A (en) * 1972-01-01 1974-04-16 Winterburn Ltd Joseph Roll doctor apparatus
US3927936A (en) * 1972-07-18 1975-12-23 Canon Kk Blade type cleaning device in an electrophotographic copying machine of the image transfer type
US3968742A (en) * 1974-07-30 1976-07-13 E. I. Du Pont De Nemours And Company Process for the concentration of pigment press cake
US4169425A (en) * 1975-12-11 1979-10-02 J. M. Voith Gmbh Apparatus for removing the surplus of coating compound in paper coating machines
US4546645A (en) * 1982-05-26 1985-10-15 L'etat Francais Represente Par Le Ministere De L'urbanisme Et Du Logement, Laboratoire Central Des Ponts Et Chaussees Measuring device for the moisture content of granular materials
US4694952A (en) * 1983-05-16 1987-09-22 Rodiac Intercessor Ltd. Scraper cleaning apparatus for reversible conveyor belts
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
EP0294992A3 (en) * 1987-06-08 1989-08-23 Thermo Electron-Web Systems, Inc. Doctoring apparatus
US4906335A (en) * 1987-06-08 1990-03-06 Thermo Electron Web System, Inc. Doctoring apparatus
US5108794A (en) * 1988-11-18 1992-04-28 Valmet Paper Machinery Inc. Method for compensation of doctor blade deflection
DE19741518A1 (de) * 1997-09-20 1999-03-25 Voith Sulzer Papiermasch Gmbh Schaber
US6328853B1 (en) * 1999-01-29 2001-12-11 Thermo Web Systems, Inc. Compliant top plate doctoring apparatus
WO2000044981A1 (en) * 1999-01-29 2000-08-03 Thermo Web Systems, Inc. Doctor blade mounting assembly
WO2000046445A1 (en) * 1999-02-03 2000-08-10 Metso Paper, Inc. Doctor assembly in a paper machine with a jointed bearing
US6447646B1 (en) 1999-02-03 2002-09-10 Metso Paper, Inc. Doctor assembly in a paper machine with a jointed bearing
JP2002536559A (ja) * 1999-02-03 2002-10-29 メトソ ペイパー インコーポレイテッド 抄紙機に用いるための連結軸受付きドクター組立体
US6547932B1 (en) 1999-02-03 2003-04-15 Metso Paper, Inc. Doctor equipment in connection with a roll/cylinder in a paper/board machine
WO2002086237A1 (en) * 2001-04-18 2002-10-31 Kadant Web Systems Inc. Doctor blade holder
US6786999B2 (en) * 2001-04-18 2004-09-07 Kadant Web Systems, Inc. Doctor blade holder
RU2242549C1 (ru) * 2001-04-18 2004-12-20 Кадант Веб Системз Инк. Держатель пластинки шабера
US20060225647A1 (en) * 2005-04-07 2006-10-12 Reid Robert A Doctor blade holder
WO2006110280A1 (en) * 2005-04-07 2006-10-19 Kadant Web Systems Doctor blade holder
RU2361028C1 (ru) * 2005-04-07 2009-07-10 Кадант Веб Системз, Инк. Ракельное устройство
US20070174990A1 (en) * 2006-01-31 2007-08-02 Kadant Web Systems Keep for doctor blade holder
EP1882776A1 (de) * 2006-07-24 2008-01-30 Voith Patent GmbH Schaberhalter
US20080190579A1 (en) * 2006-08-16 2008-08-14 Kadant Web Systems, Inc. Doctor blade holder permitting efficient assembly of doctor assemblies and replacement of doctor blades
US7867364B2 (en) 2006-08-16 2011-01-11 Kadant Inc. Doctor blade holder permitting efficient assembly of doctor assemblies and replacement of doctor blades
US20090148208A1 (en) * 2007-12-06 2009-06-11 Kadant Web Systems, Inc. Integrated doctor blade holders
US8321992B2 (en) 2007-12-06 2012-12-04 Kadant Web Systems, Inc. Integrated doctor blade holders
JP2011194350A (ja) * 2010-03-23 2011-10-06 Dainippon Printing Co Ltd 塗工量を調整するブレード装置

Also Published As

Publication number Publication date
ES197376Y (es) 1975-09-01
CA925336A (en) 1973-05-01
FR2095877A5 (enExample) 1972-02-11
ES197376U (es) 1975-04-16
GB1309804A (en) 1973-03-14
SE379219B (enExample) 1975-09-29

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