US2861541A - Device for coating a traveling sheet - Google Patents

Device for coating a traveling sheet Download PDF

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US2861541A
US2861541A US528698A US52869855A US2861541A US 2861541 A US2861541 A US 2861541A US 528698 A US528698 A US 528698A US 52869855 A US52869855 A US 52869855A US 2861541 A US2861541 A US 2861541A
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sheet
coating
shoe
traveling
doctor
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US528698A
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Hornbostel Lloyd
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Beloit Iron Works Inc
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Beloit Iron Works Inc
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
    • D21H25/12—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with an essentially cylindrical body, e.g. roll or rod
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/023—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface
    • B05C11/025—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface with an essentially cylindrical body, e.g. roll or rod
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
    • D06B15/005—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by squeezing, otherwise than by rollers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/0005—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating
    • D21H5/006—Controlling or regulating
    • D21H5/0062—Regulating the amount or the distribution, e.g. smoothing, of essentially fluent material already applied to the paper; Recirculating excess coating material applied to paper
    • D21H5/0067—Regulating the amount or the distribution, e.g. smoothing, of essentially fluent material already applied to the paper; Recirculating excess coating material applied to paper with an essentially cylindrical body, e.g. roll or rod

Definitions

  • This invention relates to the coating of a traveling sheet, and more particularly, to a device for applying coat- 1ng to a traveling sheet.
  • the instant invention may be employed in a number of different arts wherein a coating or film of material is applied to a traveling sheet (whether or not the film is to be permanently retained on the sheet), the instant invention may be employed to particular advantage in applying a coating to a traveling paper webl and the invention will be described primarily with respect to this use in the instant disclosure.
  • the application of coatings in liquid form to a traveling paper web provides a number of problems. No devices are known which are apparently adequate to ⁇ apply a truly uniform coating initially on the web; and the usual procedure calls for the use of a first means to apply coating material on the web and a second means to :smooth out the material and give the coating some uniformity.
  • This arrangement also leaves something to be desired in that the traveling sheet or web is quite flexible and only a limited amount of tension can be maintained thereon.
  • the forces which may be used to urge a wiping device or doctor against the traveling web are thus limited to the tension which the web will stand and these forces are relatively small so that it is often difficult to apply a coating uniformly to the web. Any slight irregularities in web thickness will tend to cause diculty. Even substantial irregularities in the amount of coating initially applied can cause diiculty in such an arrangement.
  • the instant invention is based upon a discovery that a number of these difficulties can be overcome by forming a nip between a first member and doctor means to receive the coated sheet therethrough and resiliently urging the first member against the doctor means to obtain the desired pressure load at the nip.
  • the iirst member is itsel flexible or yieldable and is actuated by fluid actuated means so that a substantially uniform pressure will be applied across the full width of the sheet notwithstanding possible irregularities in sheet thickness, etc. which might cause low pressure differences if the first member were not flexible.
  • It is another important object of the instant invention to provide an improved device for coating a traveling sheet comprising coating means on one side of the sheet applying coating thereto, doctor means on the same side Vof the sheet behind said coating means in the travel of said sheet wiping ⁇ excess coating from the sheet, and shoe means on the opposite side of the sheet resiiiently urging said sheet against said doctor means to control the extent to which excess coating is wiped from the sheet.
  • the drawing shows a'sectional elevational view of a device embodying thev instant invention.
  • the device 10 of the instant invention may be described generally as comprising first means 11 on one side of the sheet W applying coating thereto, second means 12 on the same side of the sheet W behind said first means 11 in the travel of the sheet W urged against the sheet W to wipe excess coating therefrom, third means 13 defining with said second means a nip N-l receiving the coated sheet W, and fourth means 14 resiliently urging the third means i3 against the second means 12 tocontrol the pressure at the nip N-1 and the amount of excess ycoating tom 16, end walls 17 and 18 and side walls such as the side wall 19, all upstanding Vfrom the bottom 16.
  • the tank 13 has false bottom walls 20l and 21 slanting downwardly from the end walls 17 and 18 to provide fa generally V-shaped cross-section to the bottom of the tank 15 and the tank 15 maintains a -level L of coating bath B therein.
  • the coating means or applicator roll 11 is partially submerged in the coating bath B and mounted on suitable bearings in the side walls (only one of which, 19, is here shown).
  • the applicator roll 11 is provided with the usual bearings and drive means (not shown) to afford rotation thereof inthe direction indicated by the arrow which is the same direction as the direction of travel of the sheet W.
  • the applicator roll 11 itself may be used to drive the sheet W in its direction of travel, or additional drive means such as pinch rolls 22 and 23 may drive the sheet at a second nip N-Z, as indicated.
  • the driven sheet W receives coating Yfrom the surface of the applicator roll 11 in the usual manner, but the coating thus applied is not applied with the extent of uniformity desired. Actually, an excess of coating material is applied by the 'applicator roll 11.
  • the thus coated sheet or web W moves forwardly in the direction indicated by the arrows over the second means or doctor roll 12.
  • the doctor roll 12 is mounted on bearings (not shown) o-n a framemember 24 suitably secured to the end wall 18 of the tank 15"as by a bolt and nut assembly 25.
  • the frame 24 has an arm portion 24a extending upwardly to close running relation to the doctor roll 12 to minimize loss of coating material thrown from the rotating doctor roll 12. To carry out this function the arm portion 24a, of course, extends the full length of the roll 12.
  • Centrally mounted arm portions 24h in the frame 24 (mounted on opposite sides of the frame) carry bearings and drive means (not shown) for the doctor roll 12 so that the doctor roll 12 may be rotated preferably in the direction opposite to the direction of web travel so as to accomplish the desired wiping effect most satisfactorily.
  • a third arm member 24C extends upwardly along the uprunning side of the doctor roll 12 and presents a flexible wiping member 26 which is received in a groove 24d in the arm 24e extending the full length of the doctor roll 12 or the full width of the tank 15 and the flexible wiping member ..6 is urged against the uprunning side of the doctor roll 12 by an expandible fluid pressure actuated tube 27 (suitably connected to a source of air under pressure, not shown), so as to continuously wipe the uprunning side of the doctor roll clean just before it comes in contact with the bottom or coated side of the web W.
  • the mounting means for the shoe 13 or third means 13 hereinbefore mentioned are carried on the side walls of the tank 15 and only the mounting means on the side wall 19 will be described herein, because the mounting '31 extending therefrom and connected thereto by a pivot pin 32 for swingable movement about the shoulder 30.
  • lA stopmember 30a extends from the should 30 forwardly and presents a stop surface 3017 which limits downward vswinging movement of the arm 31.
  • a iluid pressure actuated piston and cylinder assembly 33 (of standard construction) is connected to an upper portion of the shoulder 30 by a pivot pin 34 and ⁇ to an intermediate portion of the arm 31 by a pivot pin 3S and the power cylinder 33 is used to effect limited swinging movement of theV arm 31 upwardly from the stop surface 30h.
  • the outer extremity of the arm 31 carries a rigid dishshaped member 36 which forms the anchored or ilxed part of the fourthmeans 14 or diaphragm means 14 hereinbefore mentioned.
  • the bowed or dish-shaped member 36 extends the full width of the tank 15 or the full width of the traveling web W and is rigidly secured to the arm 31, as by bolts 37, 37.
  • a ilexible rubber diaphragm member 38 of substantially the same area as 'the rigid member 36 is sealed to the peripheral portions of the rigid member 36, as by bolt and nut'assemblies 39, 39, so as to form an air-tight chamber C between the vflexible member 38 and the rigid member 36.
  • Fluid under pressure such as compressed air is supplied to the chamber C through the line 40 and may be,
  • the shoe 13 is secured to the downward or bottom side of the exible member 38 and moves therewith.
  • the shoe 13 is preferably made of a flexible material, such as partially vulcanized rubber, so that it may bend at least to a limited extent at various places along its length, the length of the shoe 13 being the full width of the tank 15 or the width of the web W.
  • the shoe 13 may be made of other materials having limitedilexibility (since a great deal of bending or sharp bends thereof are not required) and preferably the shoe 13 is provided with a smooth frictionless surface 13a at the nip defining portion thereof.
  • the shoe 13 is held against rotation and is flexibly yieldable to the diaphragm means 14 along the length of the shoe 13.
  • a cross-bar 41 extends the full length of the shoe 13 and is received in an oversize passageway 13b therein.
  • the cross-bar 41 is suitably secured rigidly to the arm 31, as by a screw mounted support 42, so that the crossy bar 41 limits vertical movement of the shoe 13.
  • the purpose of the cross-bar is to prevent unnecessarily great downward movement of the shoe 13 when the arm 31 has been lifted out of nip-engaging relationship and only the flexible diaphragm member 33 would ordinarily be l supporting the shoe 13.
  • the oversize passageway 13b permits the desired limited bending or tlexible movement of the shoe 13 when such is necessary.
  • the arms 31, 31 are mounted n opposite sides of the tank 15 in the manner here described so as to support therebetween the diaphragm means 14 carrying the shoe 13.
  • an applicator roll partially submerged in a coating bath and rotating in the direction of sheet travel to apply a coating to one side thereof, rotary doctor means on the same side of the sheet behind said roll in the travel of said sheet wiping excess coating from the sheet, and flexible shoe means on the opposite side of the sheet held against rotation and resiliently urging said sheet against said doctor means tov control the extent to which excess coating is wiped from the sheet.
  • a device for coating a traveling sheet coating means on one side of the sheet applying coating thereto, a doctor roll rotating opposite to the direction of sheet travel and positioned on the same side of the sheet behind said coating means in the travel of said sheet wiping excess coating from the sheet, and flexible shoe means on the opposite side of the sheet resiliently urging said sheet against said doctor roll throughout the full length thereof to control the extent to which excess coating is wiped from the sheet.
  • a tank maintaining a level of liquid coating bath therein, an applicator roll mounted on the tank partially submerged in the coating bath and rotating in the direction of sheet travel to apply a coating to one side thereof, a doctor roll rotating oppositely to the direction of sheet travel and positioned on said tank on the same side of the sheet Vbehind said applicator roll in the direction of travel of said sheet for contacting and for wiping excess coating from the sheet, a ilexible shoe pivotally mounted on said tank and defining with said doctor means a nip receiving the traveling sheet, and diaphragm means resiliently urging said shoe against the sheet throughout the full width thereof to control the extent to which excess coating is wiped from the sheet.
  • rst means on one side of the Sheet applying coating thereto second rotary means on the same side of the sheet behind said first means in the direction of travel of said sheet rotatingly urged against said sheet to wipe excess coating therefrom, third flexible means defining with said second means a nip receiving the coated sheet, and fourth means pneumatically loading said third means against said second means throughout the full width of the sheet to control the pressure at the nip and the amount of excess coating wiped from said sheet by said second means.

Description

Nov. 25, 1958 L. HoRNBosTr-:L
DEVICE FOR coATING A TRAVELING SHEET Filed Aug. 1e, 1955 -nid States Pater;
, 2,861,541 p DEVICE Fon coATrNG A TRAVELING snaar Lloyd Hornbostel, Beloit, Wis., assignor to Beloit Iron Works, Beloit, Wis., a corporation of Wisconsin Application August 16, 1955, Serial N o. 528,698
6 Claims. (Cl. 118-119) This invention relates to the coating of a traveling sheet, and more particularly, to a device for applying coat- 1ng to a traveling sheet.
Although the instant invention may be employed in a number of different arts wherein a coating or film of material is applied to a traveling sheet (whether or not the film is to be permanently retained on the sheet), the instant invention may be employed to particular advantage in applying a coating to a traveling paper webl and the invention will be described primarily with respect to this use in the instant disclosure. As those skilled in the art well know, the application of coatings in liquid form to a traveling paper web provides a number of problems. No devices are known which are apparently adequate to `apply a truly uniform coating initially on the web; and the usual procedure calls for the use of a first means to apply coating material on the web and a second means to :smooth out the material and give the coating some uniformity. This arrangement also leaves something to be desired in that the traveling sheet or web is quite flexible and only a limited amount of tension can be maintained thereon. The forces which may be used to urge a wiping device or doctor against the traveling web are thus limited to the tension which the web will stand and these forces are relatively small so that it is often difficult to apply a coating uniformly to the web. Any slight irregularities in web thickness will tend to cause diculty. Even substantial irregularities in the amount of coating initially applied can cause diiculty in such an arrangement.
The instant invention is based upon a discovery that a number of these difficulties can be overcome by forming a nip between a first member and doctor means to receive the coated sheet therethrough and resiliently urging the first member against the doctor means to obtain the desired pressure load at the nip. Preferably also the iirst member is itsel flexible or yieldable and is actuated by fluid actuated means so that a substantially uniform pressure will be applied across the full width of the sheet notwithstanding possible irregularities in sheet thickness, etc. which might cause low pressure differences if the first member were not flexible.
It is, therefore, an important object of the instant invention to. provide an improved device for coating a traveling sheet.
It is another important object of the instant invention to provide an improved device for coating a traveling sheet comprising coating means on one side of the sheet applying coating thereto, doctor means on the same side Vof the sheet behind said coating means in the travel of said sheet wiping `excess coating from the sheet, and shoe means on the opposite side of the sheet resiiiently urging said sheet against said doctor means to control the extent to which excess coating is wiped from the sheet.
Other and further objects, features and advantages of the present invention will become apparent to those skilled Yin the art from the following detailed disclosure thereof and the drawings attached hereto and made a part hereof.
In the drawing:
The drawing shows a'sectional elevational view of a device embodying thev instant invention.
As shown in the drawing:
The device 10 of the instant invention may be described generally as comprising first means 11 on one side of the sheet W applying coating thereto, second means 12 on the same side of the sheet W behind said first means 11 in the travel of the sheet W urged against the sheet W to wipe excess coating therefrom, third means 13 defining with said second means a nip N-l receiving the coated sheet W, and fourth means 14 resiliently urging the third means i3 against the second means 12 tocontrol the pressure at the nip N-1 and the amount of excess ycoating tom 16, end walls 17 and 18 and side walls such as the side wall 19, all upstanding Vfrom the bottom 16. Also, the tank 13 has false bottom walls 20l and 21 slanting downwardly from the end walls 17 and 18 to provide fa generally V-shaped cross-section to the bottom of the tank 15 and the tank 15 maintains a -level L of coating bath B therein. The coating means or applicator roll 11 is partially submerged in the coating bath B and mounted on suitable bearings in the side walls (only one of which, 19, is here shown). The applicator roll 11 is provided with the usual bearings and drive means (not shown) to afford rotation thereof inthe direction indicated by the arrow which is the same direction as the direction of travel of the sheet W. The applicator roll 11 itself may be used to drive the sheet W in its direction of travel, or additional drive means such as pinch rolls 22 and 23 may drive the sheet at a second nip N-Z, as indicated. The driven sheet W receives coating Yfrom the surface of the applicator roll 11 in the usual manner, but the coating thus applied is not applied with the extent of uniformity desired. Actually, an excess of coating material is applied by the 'applicator roll 11. The thus coated sheet or web W moves forwardly in the direction indicated by the arrows over the second means or doctor roll 12. The doctor roll 12 is mounted on bearings (not shown) o-n a framemember 24 suitably secured to the end wall 18 of the tank 15"as by a bolt and nut assembly 25. The frame 24 has an arm portion 24a extending upwardly to close running relation to the doctor roll 12 to minimize loss of coating material thrown from the rotating doctor roll 12. To carry out this function the arm portion 24a, of course, extends the full length of the roll 12. Centrally mounted arm portions 24h in the frame 24 (mounted on opposite sides of the frame) carry bearings and drive means (not shown) for the doctor roll 12 so that the doctor roll 12 may be rotated preferably in the direction opposite to the direction of web travel so as to accomplish the desired wiping effect most satisfactorily. A third arm member 24C extends upwardly along the uprunning side of the doctor roll 12 and presents a flexible wiping member 26 which is received in a groove 24d in the arm 24e extending the full length of the doctor roll 12 or the full width of the tank 15 and the flexible wiping member ..6 is urged against the uprunning side of the doctor roll 12 by an expandible fluid pressure actuated tube 27 (suitably connected to a source of air under pressure, not shown), so as to continuously wipe the uprunning side of the doctor roll clean just before it comes in contact with the bottom or coated side of the web W.
The mounting means for the shoe 13 or third means 13 hereinbefore mentioned are carried on the side walls of the tank 15 and only the mounting means on the side wall 19 will be described herein, because the mounting '31 extending therefrom and connected thereto by a pivot pin 32 for swingable movement about the shoulder 30.
lA stopmember 30a extends from the should 30 forwardly and presents a stop surface 3017 which limits downward vswinging movement of the arm 31. A iluid pressure actuated piston and cylinder assembly 33 (of standard construction) is connected to an upper portion of the shoulder 30 by a pivot pin 34 and `to an intermediate portion of the arm 31 by a pivot pin 3S and the power cylinder 33 is used to effect limited swinging movement of theV arm 31 upwardly from the stop surface 30h. The outer extremity of the arm 31 carries a rigid dishshaped member 36 which forms the anchored or ilxed part of the fourthmeans 14 or diaphragm means 14 hereinbefore mentioned. The bowed or dish-shaped member 36 extends the full width of the tank 15 or the full width of the traveling web W and is rigidly secured to the arm 31, as by bolts 37, 37. A ilexible rubber diaphragm member 38 of substantially the same area as 'the rigid member 36 is sealed to the peripheral portions of the rigid member 36, as by bolt and nut'assemblies 39, 39, so as to form an air-tight chamber C between the vflexible member 38 and the rigid member 36.
Fluid under pressure such as compressed air is supplied to the chamber C through the line 40 and may be,
The shoe 13 is secured to the downward or bottom side of the exible member 38 and moves therewith. The shoe 13 is preferably made of a flexible material, such as partially vulcanized rubber, so that it may bend at least to a limited extent at various places along its length, the length of the shoe 13 being the full width of the tank 15 or the width of the web W. The shoe 13 may be made of other materials having limitedilexibility (since a great deal of bending or sharp bends thereof are not required) and preferably the shoe 13 is provided with a smooth frictionless surface 13a at the nip defining portion thereof. The shoe 13 is held against rotation and is flexibly yieldable to the diaphragm means 14 along the length of the shoe 13.
A cross-bar 41 extends the full length of the shoe 13 and is received in an oversize passageway 13b therein. The cross-bar 41 is suitably secured rigidly to the arm 31, as by a screw mounted support 42, so that the crossy bar 41 limits vertical movement of the shoe 13. The purpose of the cross-bar is to prevent unnecessarily great downward movement of the shoe 13 when the arm 31 has been lifted out of nip-engaging relationship and only the flexible diaphragm member 33 would ordinarily be l supporting the shoe 13. On the other hand, the oversize passageway 13b permits the desired limited bending or tlexible movement of the shoe 13 when such is necessary.
As will be appreciated the arms 31, 31 are mounted n opposite sides of the tank 15 in the manner here described so as to support therebetween the diaphragm means 14 carrying the shoe 13.
It will be understood that modifications and variations may be effected without departing from the spirit and scope of the novel concepts of the present invention.
I claim as my invention:
1. In a device for coating a traveling sheet, coating means on one side of the sheet applying coating thereto, rotary doctor means on the same side of the sheet behind said coating means in the travel of said sheet wiping excess coating from the sheet, and flexible shoe means on the opposite sidel of the sheet held against rotation and resiliently urging said sheet against said doctor means throughout the full length thereof to control the extent to which excess coating is wiped from the sheet.
2. In a device for coating a traveling sheet, an applicator roll partially submerged in a coating bath and rotating in the direction of sheet travel to apply a coating to one side thereof, rotary doctor means on the same side of the sheet behind said roll in the travel of said sheet wiping excess coating from the sheet, and flexible shoe means on the opposite side of the sheet held against rotation and resiliently urging said sheet against said doctor means tov control the extent to which excess coating is wiped from the sheet.
3. In a device for coating a traveling sheet, coating means on one side of the sheet applying coating thereto, a doctor roll rotating opposite to the direction of sheet travel and positioned on the same side of the sheet behind said coating means in the travel of said sheet wiping excess coating from the sheet, and flexible shoe means on the opposite side of the sheet resiliently urging said sheet against said doctor roll throughout the full length thereof to control the extent to which excess coating is wiped from the sheet.
4. In a device for coating a traveling sheet, coating means on one side of the sheet applying coating thereto,
- rotary doctor means on the same side of the sheet behind said coating means in the travel of said sheet wiping excess coating from the sheet, a flexible member delining with said doctor means a nip receiving the traveling sheet, and diaphragm means resiliently urging said member against the sheet throughout the full width thereof to control the extent to which excess coating is wiped ,from the sheet.
5. In a device for coating a traveling sheet, a tank maintaining a level of liquid coating bath therein, an applicator roll mounted on the tank partially submerged in the coating bath and rotating in the direction of sheet travel to apply a coating to one side thereof, a doctor roll rotating oppositely to the direction of sheet travel and positioned on said tank on the same side of the sheet Vbehind said applicator roll in the direction of travel of said sheet for contacting and for wiping excess coating from the sheet, a ilexible shoe pivotally mounted on said tank and defining with said doctor means a nip receiving the traveling sheet, and diaphragm means resiliently urging said shoe against the sheet throughout the full width thereof to control the extent to which excess coating is wiped from the sheet.
6. In a device for coating a traveling sheet, rst means on one side of the Sheet applying coating thereto, second rotary means on the same side of the sheet behind said first means in the direction of travel of said sheet rotatingly urged against said sheet to wipe excess coating therefrom, third flexible means defining with said second means a nip receiving the coated sheet, and fourth means pneumatically loading said third means against said second means throughout the full width of the sheet to control the pressure at the nip and the amount of excess coating wiped from said sheet by said second means.
References Cited in the file of this patent UNITED STATES PATENTS 1,956,561 Coates May 1, 1934 1,956,562 Coates May l, 1934 1,987,183 Dickhaut Jan. 8, 1935 2,206,170 Elam et al. July 2, 1940 2,672,119 Ertner Mar. 16, 1954
US528698A 1955-08-16 1955-08-16 Device for coating a traveling sheet Expired - Lifetime US2861541A (en)

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Cited By (21)

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US3027940A (en) * 1958-12-31 1962-04-03 Lodding Engineering Corp Adjustable supports for fourdrinier screen wires
US3029779A (en) * 1958-10-15 1962-04-17 Beloit Iron Works Reverse bar coater
US3057327A (en) * 1959-03-04 1962-10-09 Time Inc Blade controlling device for coating apparatus
US3079889A (en) * 1959-06-03 1963-03-05 Black Clawson Co Paper machinery
US3128207A (en) * 1961-09-07 1964-04-07 Beloit Iron Works Trailing blade coater blade loading mechanism
US3181500A (en) * 1960-01-25 1965-05-04 Minnesota & Ontario Paper Co Apparatus for the production of coated paper
US3186861A (en) * 1960-06-08 1965-06-01 Mead Corp Process for producing pressure sensitive record paper
US3450098A (en) * 1968-04-02 1969-06-17 Diamond Int Corp Doctor for paper-making machine
US3559618A (en) * 1968-03-29 1971-02-02 Houilleres Bassin Du Nord Apparatus for coating glass filaments
US3561400A (en) * 1968-07-23 1971-02-09 Stromberg Datagraphix Inc Developer apparatus
US3717409A (en) * 1971-04-12 1973-02-20 Xerox Corp Cleaning of electrostatographic surfaces
DE2730908A1 (en) * 1976-08-05 1978-02-09 Bachofen & Meier Maschf APPLICATION AND DOSING DEVICE, IN PARTICULAR FOR DISTRIBUTION OF A THIN LIQUID MEDIUM ON A WEB OF PAPER, CARDBOARD, PLASTIC, METAL, TEXTILES ETC.
US4416922A (en) * 1982-09-24 1983-11-22 St. Regis Paper Company Apparatus and method for metering a coating applied to a moving web
EP0011314B1 (en) * 1978-11-14 1984-01-11 Stork Brabant B.V. Squeegee for screen printing machine
US4458376A (en) * 1982-09-03 1984-07-10 Allied Tube & Conduit Corporation Apparatus for wiping continuously moving strip
US4757763A (en) * 1979-04-19 1988-07-19 Baldwin Technology Corporation Automatic blanket cylinder cleaner
WO2003101740A1 (en) * 2002-05-08 2003-12-11 Baldwin Graphic Systems, Inc. Bladder with a constant contact region for cleaning a blanket cylinder
WO2004090218A1 (en) * 2003-04-10 2004-10-21 Eduard Küsters Maschinenfabrik GmbH & Co. KG Mechanism for applying a bath to a running strap
EP1607140A1 (en) * 2004-06-16 2005-12-21 Voith Paper Patent GmbH Doctor blade bed
DE102004061227B3 (en) * 2004-12-20 2006-03-16 Eduard Küsters Maschinenfabrik GmbH & Co. KG Apparatus for removing excess liquor from moving sheet, e.g. after dyeing, comprising stripper with contacting side formed by part of flexible tube to be rotated when contacting surface is worn
WO2013188350A1 (en) * 2012-06-11 2013-12-19 Btg Ipi, Llc Insert and holder for a metering device

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US1987183A (en) * 1932-06-25 1935-01-08 John Waldron Corp Apparatus for roll coating
US2206170A (en) * 1939-04-12 1940-07-02 White Way Laundry Starching machine
US2672119A (en) * 1951-08-23 1954-03-16 Western Electric Co Apparatus for coating webs, including adjustable doctor blade

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US1987183A (en) * 1932-06-25 1935-01-08 John Waldron Corp Apparatus for roll coating
US2206170A (en) * 1939-04-12 1940-07-02 White Way Laundry Starching machine
US2672119A (en) * 1951-08-23 1954-03-16 Western Electric Co Apparatus for coating webs, including adjustable doctor blade

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029779A (en) * 1958-10-15 1962-04-17 Beloit Iron Works Reverse bar coater
US3027940A (en) * 1958-12-31 1962-04-03 Lodding Engineering Corp Adjustable supports for fourdrinier screen wires
US3057327A (en) * 1959-03-04 1962-10-09 Time Inc Blade controlling device for coating apparatus
US3079889A (en) * 1959-06-03 1963-03-05 Black Clawson Co Paper machinery
US3181500A (en) * 1960-01-25 1965-05-04 Minnesota & Ontario Paper Co Apparatus for the production of coated paper
US3186861A (en) * 1960-06-08 1965-06-01 Mead Corp Process for producing pressure sensitive record paper
US3128207A (en) * 1961-09-07 1964-04-07 Beloit Iron Works Trailing blade coater blade loading mechanism
US3559618A (en) * 1968-03-29 1971-02-02 Houilleres Bassin Du Nord Apparatus for coating glass filaments
US3450098A (en) * 1968-04-02 1969-06-17 Diamond Int Corp Doctor for paper-making machine
US3561400A (en) * 1968-07-23 1971-02-09 Stromberg Datagraphix Inc Developer apparatus
US3717409A (en) * 1971-04-12 1973-02-20 Xerox Corp Cleaning of electrostatographic surfaces
US4128077A (en) * 1976-08-05 1978-12-05 Bachofen & Meier Application and dosing device having a mini application roller and a sealingly supported doctor rod
DE2730908A1 (en) * 1976-08-05 1978-02-09 Bachofen & Meier Maschf APPLICATION AND DOSING DEVICE, IN PARTICULAR FOR DISTRIBUTION OF A THIN LIQUID MEDIUM ON A WEB OF PAPER, CARDBOARD, PLASTIC, METAL, TEXTILES ETC.
EP0011314B1 (en) * 1978-11-14 1984-01-11 Stork Brabant B.V. Squeegee for screen printing machine
US4757763A (en) * 1979-04-19 1988-07-19 Baldwin Technology Corporation Automatic blanket cylinder cleaner
US4458376A (en) * 1982-09-03 1984-07-10 Allied Tube & Conduit Corporation Apparatus for wiping continuously moving strip
US4416922A (en) * 1982-09-24 1983-11-22 St. Regis Paper Company Apparatus and method for metering a coating applied to a moving web
WO2003101740A1 (en) * 2002-05-08 2003-12-11 Baldwin Graphic Systems, Inc. Bladder with a constant contact region for cleaning a blanket cylinder
WO2004090218A1 (en) * 2003-04-10 2004-10-21 Eduard Küsters Maschinenfabrik GmbH & Co. KG Mechanism for applying a bath to a running strap
EP1607140A1 (en) * 2004-06-16 2005-12-21 Voith Paper Patent GmbH Doctor blade bed
US20050284363A1 (en) * 2004-06-16 2005-12-29 Christoph Henninger Doctor bed
US7332033B2 (en) 2004-06-16 2008-02-19 Voith Paper Patent Gmbh Doctor bed
DE102004061227B3 (en) * 2004-12-20 2006-03-16 Eduard Küsters Maschinenfabrik GmbH & Co. KG Apparatus for removing excess liquor from moving sheet, e.g. after dyeing, comprising stripper with contacting side formed by part of flexible tube to be rotated when contacting surface is worn
WO2013188350A1 (en) * 2012-06-11 2013-12-19 Btg Ipi, Llc Insert and holder for a metering device

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