CA2096677A1 - Coating device for webs of paper or board - Google Patents
Coating device for webs of paper or boardInfo
- Publication number
- CA2096677A1 CA2096677A1 CA 2096677 CA2096677A CA2096677A1 CA 2096677 A1 CA2096677 A1 CA 2096677A1 CA 2096677 CA2096677 CA 2096677 CA 2096677 A CA2096677 A CA 2096677A CA 2096677 A1 CA2096677 A1 CA 2096677A1
- Authority
- CA
- Canada
- Prior art keywords
- coating
- jacket
- slide
- backing roll
- radius
- 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.)
- Abandoned
Links
Classifications
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
Landscapes
- Paper (AREA)
- Coating Apparatus (AREA)
Abstract
COATING DEVICE FOR WEBS OF PAPER OR BOARD
ABSTRACT OF THE DISCLOSURE
The invention relates to a device for coating traveling webs, in particular of paper or board, in which the coating composition is applied to the web by a rotating coating jacket at a coating nip formed between the coating jacket and a counter-rotating backing roll.
In the region of the coating nip, the coating jacket is guided over a slide shoe which extends parallel to the nip and parallel to the backing roll, the slide shoe being located within the coating jacket. The elide shoe has an at least partially flat and/or convexly curved slide surface at the coating nip and has a radius of curvature of preferably more than 100 mm. The slide surface further has an angular edge or projection portion toward the downstream side, with respect to the rotation direction of the coating jacket, which forms a deflection in the coating jacket at a point where the coating jacket separates from the backing roll.
ABSTRACT OF THE DISCLOSURE
The invention relates to a device for coating traveling webs, in particular of paper or board, in which the coating composition is applied to the web by a rotating coating jacket at a coating nip formed between the coating jacket and a counter-rotating backing roll.
In the region of the coating nip, the coating jacket is guided over a slide shoe which extends parallel to the nip and parallel to the backing roll, the slide shoe being located within the coating jacket. The elide shoe has an at least partially flat and/or convexly curved slide surface at the coating nip and has a radius of curvature of preferably more than 100 mm. The slide surface further has an angular edge or projection portion toward the downstream side, with respect to the rotation direction of the coating jacket, which forms a deflection in the coating jacket at a point where the coating jacket separates from the backing roll.
Description
2~9~677 COATING DEVICE FOR WEBS OF PAPER OR BOARD
BACKGROUND OF THE INVENTION
The invention relates to a device for coating traveling web~, in particular of paper or board, in which the coating composition is applied to the web by a rotating coating jacket at a coating nip formed between the coating jacket and a counter-rotating backing roll.
In the region of the coating nip, the coating jacket is guided over a slide shoe which extends parallel to the nip and parallel to the backing roll, the slide shoe being located within the coating jacket.
The invention relates more particularly to improvements in the slide shoe.
A coating device for coating webs of paper or board is known from Federal Republic of Germany 41 00 771 A1. In that device, a rigid slide shoe is held on a fixed, beam-shaped support which extends parallel to the backing roll and to the coating nip. The slide shoe is adjusted to the coating nip via pressure from a pressure hose. The con6truction is such that the coating jacket is guided around two drive rolls so as to rotate in a trough. In this case, enormous problems in sealing arise in order to block off the inside of the coating jacket, and thus the ~urfaces of the drive rolls not wrapped by the coating jacket, to prevent entry of the coating COmpOsitlOn.
It would be desirable to develop a coating device that can avoid those problems.
It is also desirable for the coating device to dependably avoid skip coating or an "orange-peel" effect.
SUMMARY OF THE INVENTION
The above and other objects are achieved in accordance with the invention by the features disclosed ; and claimed herein.
According to an aspect of the invention, the slide shoe has at least partially flat and/or convexly curved slide surface at the coating nip and has a radius of curvature of at least about 100 mm, and preferably at least about 300 mm. The slide surface further has an angular edge or projection portion toward the downstream side, with respect to the rotation direction of the coating jacket, which forms a deflection in the coating jacket at a point where the coating jacket separate6 from the backing roll.
According to further aspects of the invention, advantageous radii of curvature and other measurements, for portions of the angular edge or projecting portion of the slide shoe, are also disclosed and claimed herein.
Other features and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings.
BRIEF DESCRIPTION OF THE ~RA~INGS
An embodiment of the invention will be described in detail below with reference to the figures, in which:
Fig. 1 diagrammatically shows a cross-section through a device in accordance with the invention;
Fig. 2 is a cross-section through the coating jacket and its support;
Fig. 3 is an axial section corresponding to Fig. 2;
-.
.
Fig. 4 is a partial cross-sectional view of a variant of the slide shoe; and Fig. 5 shows a further variant of the slide shoe, in cross-section.
DETAI~ED DESCRIPTION OF AN EMB~PI~ENT OF THE INVENTION
The backing roll 3 conducts the web of paper W
through the coating nip formed between the coating jacket 1 or its supporting slide shoes 4 and the backing roll 3.
In this connection, the ho~e rotates through the coating composition which i8 contained in a trough 14 and the slide shoe 4 is held by a support 2. The support 2 can preferably also have slide shoes 9, 10 and 11 distributed over the remaining circumference of the coating jacket.
The slide shoe 4 is guided and held in the support 2 in the manner of a pressure piston in a pressure chamber 5 to which liquid is fed under pressure via hole~ 28 and conduits 29. Excess pressure agent and lubricant can be led away at the bottom shoe 10 via a conduit 30 (for instance, by being pumped off by a pump).
Coating jacket 1 is held on end clamping disks 12 which serve also for driving the coating jacket, for instance, via a gear rim 13. The stub shafts 23 are mounted in tapered roller bearings 15. End tabs of the press jacket 1 are fastened to the clamping disks 12 by mean6 of end disks 20 and screws 22.
The coating jacket 1 is separated abruptly from the backing roll 3 by the edge on the downstream side (with respect to the web movement direction) of the slide surface 17 of the slide shoe 4. For this purpose, the radius of curvature of the slide surface 17 of the slide shoe 4 is greater than 100 mm, preferably more than 300 mm. The edge on the downstream side, which extends I
`2~96677 parallol to th~ bac~g xoll ~nd to th~ coating nip wh~rr~
the coating mat~rial ~s transferred to ehe web, extend3 nt le~st 8 mm abo~e the guide ~urfa~e in -he pres~ure chamber S which guide~ ~he side ~urface 24 on the s downstre~m ~ide o' thc ~llde sh~e ~.
In order to protect against scraping of the cL~mpi~g dis~ 12 on the s~pport ~, the l~tt~r h~
emergency-travel bearin~ ~ur~ace~ 13, for iD6tance of bearing metal or bron~e. The liquid c~nduits 25 a~d 30 are e~tende~ ~utward through end pins 33 of the support z. A s~al 21 ls also provi~ed ror sealing the coAting compo~ition trough 14 at the stub shaft6 23. The bear~ngs 1~ are supported vla ~rac~ets 18 on the coa~ir.~
eompo62ition trough la. 2ther C~pports are, howe~rer, al60 po~ le.
Fig. ~ ~ho~e a variant in which the sllde shoe 4' has in it~ central region a ~no~-~haped or ridge-~hapod pro~er~tio~ 31 w~ich extend6 parallQl to th~
coating nip and slide shoe. The projection ~ay ha~e a 2 0 r~diQ~ of c~r~rclturo rl -- in the plcl~o of the draw;ns~
of about 20 to 50 mm, and preferabl~ of at mo~ ~bout 20 mm. It p~eferably extends abcut 20 to 40 ~m f ro~ the slide surface ~e~ Fig. 2~ of the slide shoe 4 r . The down~tream-side rad~u~ o~ curvature r2 ca~ be mu~h 6malle~ and i8 preferably about 2 to 8 mm. By thi~
~tructure, the course o~ the coating jac~et 1 is ~mparted a rola~ivel~ c~arp d~lectio~ a~ tho pro~oction 31 ~o that an abrupt separation from the backing ro~l 3 takes place hcr~. Furth~r slid~ eurfac~c 33 and 34 ar~
provLded at the ~eginni~g and e~d o~ the sl1de shoe 4', bu~ thoy nood not noce~arlly bo pro~ent~ for ox~mple, the fi~6t slide ~urface 34 on ~he upst~eam side in p~rticul~r can be ~mitted.
.
In aecord~nce with FLg~ 5, the dc~n~tre~m-~ido xadiu6 of cur~atu~e k2 of the support 6hoe ~ o~ the projection 3~ v~r~ ~ma1 and i8 pr~erably ab~ut 1 to 20 mm, and m~re pref~rably about 2 to 8 mm. The upstxeam-s$~e xad~us of curvature ~ f 6 at least 4 nimee a~ great and i~ at le~st abQut 20 ~nm and preferably at least about 60 ~n. The~e value~ can apply al80 tO the projoction 31 o~ ~ig. 4.
Although the pregent irlvention ha6 ~een ~cribod in r~lation to particuIar o~ ~ont~ thoroo, many othe~ ~axiatio~6 and modi~ication6 and other uses will ~como appar~nt to tho-o ~kill~d in tho ~t. It i6 preferred, therefore, that the pre~ent in~ention be limitcd not by the ~pecific di~looure heroin, but onl~
: 15 by the appended cla~ms.
' - ' ~ ,' ' . .. . ' . ~' .' ' ' . . : .. ,' . - ' , ~ '' . .: , ~
.
BACKGROUND OF THE INVENTION
The invention relates to a device for coating traveling web~, in particular of paper or board, in which the coating composition is applied to the web by a rotating coating jacket at a coating nip formed between the coating jacket and a counter-rotating backing roll.
In the region of the coating nip, the coating jacket is guided over a slide shoe which extends parallel to the nip and parallel to the backing roll, the slide shoe being located within the coating jacket.
The invention relates more particularly to improvements in the slide shoe.
A coating device for coating webs of paper or board is known from Federal Republic of Germany 41 00 771 A1. In that device, a rigid slide shoe is held on a fixed, beam-shaped support which extends parallel to the backing roll and to the coating nip. The slide shoe is adjusted to the coating nip via pressure from a pressure hose. The con6truction is such that the coating jacket is guided around two drive rolls so as to rotate in a trough. In this case, enormous problems in sealing arise in order to block off the inside of the coating jacket, and thus the ~urfaces of the drive rolls not wrapped by the coating jacket, to prevent entry of the coating COmpOsitlOn.
It would be desirable to develop a coating device that can avoid those problems.
It is also desirable for the coating device to dependably avoid skip coating or an "orange-peel" effect.
SUMMARY OF THE INVENTION
The above and other objects are achieved in accordance with the invention by the features disclosed ; and claimed herein.
According to an aspect of the invention, the slide shoe has at least partially flat and/or convexly curved slide surface at the coating nip and has a radius of curvature of at least about 100 mm, and preferably at least about 300 mm. The slide surface further has an angular edge or projection portion toward the downstream side, with respect to the rotation direction of the coating jacket, which forms a deflection in the coating jacket at a point where the coating jacket separate6 from the backing roll.
According to further aspects of the invention, advantageous radii of curvature and other measurements, for portions of the angular edge or projecting portion of the slide shoe, are also disclosed and claimed herein.
Other features and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings.
BRIEF DESCRIPTION OF THE ~RA~INGS
An embodiment of the invention will be described in detail below with reference to the figures, in which:
Fig. 1 diagrammatically shows a cross-section through a device in accordance with the invention;
Fig. 2 is a cross-section through the coating jacket and its support;
Fig. 3 is an axial section corresponding to Fig. 2;
-.
.
Fig. 4 is a partial cross-sectional view of a variant of the slide shoe; and Fig. 5 shows a further variant of the slide shoe, in cross-section.
DETAI~ED DESCRIPTION OF AN EMB~PI~ENT OF THE INVENTION
The backing roll 3 conducts the web of paper W
through the coating nip formed between the coating jacket 1 or its supporting slide shoes 4 and the backing roll 3.
In this connection, the ho~e rotates through the coating composition which i8 contained in a trough 14 and the slide shoe 4 is held by a support 2. The support 2 can preferably also have slide shoes 9, 10 and 11 distributed over the remaining circumference of the coating jacket.
The slide shoe 4 is guided and held in the support 2 in the manner of a pressure piston in a pressure chamber 5 to which liquid is fed under pressure via hole~ 28 and conduits 29. Excess pressure agent and lubricant can be led away at the bottom shoe 10 via a conduit 30 (for instance, by being pumped off by a pump).
Coating jacket 1 is held on end clamping disks 12 which serve also for driving the coating jacket, for instance, via a gear rim 13. The stub shafts 23 are mounted in tapered roller bearings 15. End tabs of the press jacket 1 are fastened to the clamping disks 12 by mean6 of end disks 20 and screws 22.
The coating jacket 1 is separated abruptly from the backing roll 3 by the edge on the downstream side (with respect to the web movement direction) of the slide surface 17 of the slide shoe 4. For this purpose, the radius of curvature of the slide surface 17 of the slide shoe 4 is greater than 100 mm, preferably more than 300 mm. The edge on the downstream side, which extends I
`2~96677 parallol to th~ bac~g xoll ~nd to th~ coating nip wh~rr~
the coating mat~rial ~s transferred to ehe web, extend3 nt le~st 8 mm abo~e the guide ~urfa~e in -he pres~ure chamber S which guide~ ~he side ~urface 24 on the s downstre~m ~ide o' thc ~llde sh~e ~.
In order to protect against scraping of the cL~mpi~g dis~ 12 on the s~pport ~, the l~tt~r h~
emergency-travel bearin~ ~ur~ace~ 13, for iD6tance of bearing metal or bron~e. The liquid c~nduits 25 a~d 30 are e~tende~ ~utward through end pins 33 of the support z. A s~al 21 ls also provi~ed ror sealing the coAting compo~ition trough 14 at the stub shaft6 23. The bear~ngs 1~ are supported vla ~rac~ets 18 on the coa~ir.~
eompo62ition trough la. 2ther C~pports are, howe~rer, al60 po~ le.
Fig. ~ ~ho~e a variant in which the sllde shoe 4' has in it~ central region a ~no~-~haped or ridge-~hapod pro~er~tio~ 31 w~ich extend6 parallQl to th~
coating nip and slide shoe. The projection ~ay ha~e a 2 0 r~diQ~ of c~r~rclturo rl -- in the plcl~o of the draw;ns~
of about 20 to 50 mm, and preferabl~ of at mo~ ~bout 20 mm. It p~eferably extends abcut 20 to 40 ~m f ro~ the slide surface ~e~ Fig. 2~ of the slide shoe 4 r . The down~tream-side rad~u~ o~ curvature r2 ca~ be mu~h 6malle~ and i8 preferably about 2 to 8 mm. By thi~
~tructure, the course o~ the coating jac~et 1 is ~mparted a rola~ivel~ c~arp d~lectio~ a~ tho pro~oction 31 ~o that an abrupt separation from the backing ro~l 3 takes place hcr~. Furth~r slid~ eurfac~c 33 and 34 ar~
provLded at the ~eginni~g and e~d o~ the sl1de shoe 4', bu~ thoy nood not noce~arlly bo pro~ent~ for ox~mple, the fi~6t slide ~urface 34 on ~he upst~eam side in p~rticul~r can be ~mitted.
.
In aecord~nce with FLg~ 5, the dc~n~tre~m-~ido xadiu6 of cur~atu~e k2 of the support 6hoe ~ o~ the projection 3~ v~r~ ~ma1 and i8 pr~erably ab~ut 1 to 20 mm, and m~re pref~rably about 2 to 8 mm. The upstxeam-s$~e xad~us of curvature ~ f 6 at least 4 nimee a~ great and i~ at le~st abQut 20 ~nm and preferably at least about 60 ~n. The~e value~ can apply al80 tO the projoction 31 o~ ~ig. 4.
Although the pregent irlvention ha6 ~een ~cribod in r~lation to particuIar o~ ~ont~ thoroo, many othe~ ~axiatio~6 and modi~ication6 and other uses will ~como appar~nt to tho-o ~kill~d in tho ~t. It i6 preferred, therefore, that the pre~ent in~ention be limitcd not by the ~pecific di~looure heroin, but onl~
: 15 by the appended cla~ms.
' - ' ~ ,' ' . .. . ' . ~' .' ' ' . . : .. ,' . - ' , ~ '' . .: , ~
.
Claims (20)
1. A device for coating a traveling web, in particular web of paper or board, in which the coating composition is carried by a rotating coating jacket to a coating nip formed between the coating jacket and a counter-rotating backing roll, through which the web passes;
the coating jacket being guided over a slide shoe which extends parallel to the coating nip and to the backing roll and is located within the coating jacket and urges the coating jacket against the backing roll;
the slide shoe having a slide surface which is arranged at the coating nip and has a radius of curvature of at least 100 mm, and a projecting portion of the slide surface projects toward the backing roll and provides a deflection is the coating jacket at a point where the coating jacket separates from the backing roll.
the coating jacket being guided over a slide shoe which extends parallel to the coating nip and to the backing roll and is located within the coating jacket and urges the coating jacket against the backing roll;
the slide shoe having a slide surface which is arranged at the coating nip and has a radius of curvature of at least 100 mm, and a projecting portion of the slide surface projects toward the backing roll and provides a deflection is the coating jacket at a point where the coating jacket separates from the backing roll.
2. A device as in claim 1, wherein the radius of curvature of the slide surface is at least 300 mm.
3. A device as in claim 1, wherein said projecting portion is at a downstream portion of said slide shoe.
4. A device as in claim 3, wherein said projecting portion is at a downstream edge of a surface of said slide shoe facing said backing roll.
5. A device according to claim 4, wherein said downstream said edge has a radius of curvature of 2 to 8 mm.
6. A device as in claim 3, wherein said projecting portion is at a downstream half of a surface of said slide shoe facing said backing roll.
7. A device as in claim 1, wherein a contour of the projecting portion of the slide surface drops steeply with respect to the coating jacket and has a radius of curvature of 2 to 8 mm.
8. A device according to claim 1, wherein the projecting portion is at a steeply falling-off downstream-side edge of the slide surface of the slide shoe and extends at least 8 mm out of a support which holds the slide shoe.
9. A device according to claim 8, wherein said downstream side edge has a radius of curvature of 2 to 8 mm.
10. A device for coating a traveling web, in particular a web of paper or board, in which the coating composition is carried by a rotating coating jacket to coating nip formed between the coating jacket and a counter-rotating backing roll, through which the web passes;
the coating jacket being guided over a slide shoe which extends parallel to the coating nip and to the backing roll and is located within the coating jacket and urges the coating jacket against the backing roll;
wherein a radius of curvature of the slide shoe at an upstream side (k2) is at least 25 mm and at a downstream side (k2) at most 20 mm, and the slide shoe thereby provides a point of deflection for the coating jacket where the coating jacket separates from the backing roll.
the coating jacket being guided over a slide shoe which extends parallel to the coating nip and to the backing roll and is located within the coating jacket and urges the coating jacket against the backing roll;
wherein a radius of curvature of the slide shoe at an upstream side (k2) is at least 25 mm and at a downstream side (k2) at most 20 mm, and the slide shoe thereby provides a point of deflection for the coating jacket where the coating jacket separates from the backing roll.
11. A device according to claim 10, wherein said downstream-side radius is 2-8 mm.
12. A device according to claim 11, wherein the ratio of the upstream-side radius (k1) to the downstream-side radius (k2) is at least 4:1.
13. A device according to claim 10, wherein the ratio of the upstream-side radius (k,) to the downstream-side radius (k2) is at least 4:1.
14. A device for coating a traveling web, in particular a web of paper or board, in which the coating composition is carried by a rotating coating jacket to a coating nip formed between the coating jacket and a counter-rotating backing roll, through which the web passes;
the coating jacket being guided over a slide shoe which extends parallel to the coating nip and to the backing roll and is located within the coating jacket and urges the coating jacket against the backing roll;
wherein:
the slide shoe has a first slide surface at its upstream side, with respect to the movement direction of the coating jacket;
the slide shoe has a second slide surface downstream from said first slide surface in the form of a projection having an upstream-side radius of curvature (r1) of at least 20 mm;
on the downstream side, the radius of curvature of said second slide surface (r2) is 2 to 8 mm; and the slide shoe has a third slide surface on its downstream side.
the coating jacket being guided over a slide shoe which extends parallel to the coating nip and to the backing roll and is located within the coating jacket and urges the coating jacket against the backing roll;
wherein:
the slide shoe has a first slide surface at its upstream side, with respect to the movement direction of the coating jacket;
the slide shoe has a second slide surface downstream from said first slide surface in the form of a projection having an upstream-side radius of curvature (r1) of at least 20 mm;
on the downstream side, the radius of curvature of said second slide surface (r2) is 2 to 8 mm; and the slide shoe has a third slide surface on its downstream side.
15. A device according to claim 14, wherein said upstream radius of curvature (r1) is at least 25 mm.
16. A device according to claim 14, wherein said downtream radius of curvature (r2) is 2 to 8 mm.
17. A device according to any one of claims 1, 10 and 14, further comprising a plurality of the additional slide shoes distributed over the inner circumference of the coating jacket.
18. A device according to claim 17, wherein that the distance apart of the additional slide shoes along the coating jacket is at least 40 mm.
19. A device according to claim 1, wherein the coating jacket is mounted on a pair of end clamping disks and is driven by them for rotary movement approximately on a circular path.
20. A device according to claim 1, wherein the slide shoe comprises a pressure piston.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19924216634 DE4216634A1 (en) | 1992-05-20 | 1992-05-20 | Coating device for webs of paper or cardboard |
| DEP4216634.9 | 1992-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2096677A1 true CA2096677A1 (en) | 1993-11-21 |
Family
ID=6459304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2096677 Abandoned CA2096677A1 (en) | 1992-05-20 | 1993-05-20 | Coating device for webs of paper or board |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0570837A1 (en) |
| JP (1) | JPH0647325A (en) |
| CA (1) | CA2096677A1 (en) |
| DE (1) | DE4216634A1 (en) |
| FI (1) | FI932297A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4446308C2 (en) * | 1994-12-23 | 2000-10-26 | Voith Sulzer Papiermasch Gmbh | Device for applying a liquid or pasty medium to a running web of material |
| US5779767A (en) * | 1997-03-07 | 1998-07-14 | Air Products And Chemicals, Inc. | Use of zeolites and alumina in adsorption processes |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3338323A1 (en) * | 1982-11-23 | 1984-05-24 | Jagenberg AG, 4000 Düsseldorf | DEVICE FOR COATING CONTINUOUS MATERIALS |
| FI900185A (en) * | 1990-01-12 | 1991-07-13 | Valmet Paper Machinery Inc | APPLICERINGSANORDNING. |
-
1992
- 1992-05-20 DE DE19924216634 patent/DE4216634A1/en not_active Ceased
-
1993
- 1993-05-13 EP EP93107780A patent/EP0570837A1/en not_active Withdrawn
- 1993-05-19 FI FI932297A patent/FI932297A/en not_active Application Discontinuation
- 1993-05-20 JP JP11802393A patent/JPH0647325A/en active Pending
- 1993-05-20 CA CA 2096677 patent/CA2096677A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| FI932297A0 (en) | 1993-05-19 |
| FI932297A (en) | 1993-11-21 |
| DE4216634A1 (en) | 1993-11-25 |
| EP0570837A1 (en) | 1993-11-24 |
| JPH0647325A (en) | 1994-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5122396A (en) | Method and device for limitation of the width of coating of paper | |
| EP0674047A2 (en) | Coating device for coating of a size-press roll, paper or board | |
| US3029779A (en) | Reverse bar coater | |
| US6911085B2 (en) | Doctor blade dosing system | |
| JPH0623941A (en) | Rotary supply device for introducing compressed air to rotating part of printing press | |
| US6126750A (en) | Device used to indirectly apply a liquid or viscous medium onto a material web, specifically a paper or cardboard web | |
| ATE217814T1 (en) | SEAL FOR OIL FILM BEARINGS OF A ROLLING STAND | |
| CA2096677A1 (en) | Coating device for webs of paper or board | |
| US3892446A (en) | Shaft seal | |
| US5846173A (en) | Anti-deflection roll | |
| FI72904B (en) | ANORDINATION FOR DOUBLE BEARING WITH PAPER. | |
| JPH08337990A (en) | Wide width nip press apparatus with device for clamping gear-type blanket end edge | |
| US4685183A (en) | Controlled deflection roll | |
| ATE209728T1 (en) | LONG GAP PRESS | |
| EP0843106B1 (en) | A method for mounting a bushing in a seat of a housing, and a device and a tool for accomplishing the method | |
| EP0107607A2 (en) | Extended nip press | |
| US4782568A (en) | Press roll | |
| CA2325918C (en) | Non-self loading controlled deflection roll | |
| FI91903C (en) | Holder for a coating rod or coating blade | |
| JPH07507495A (en) | Equipment for coating paper or cardboard webs | |
| ATE195009T1 (en) | ROLL PRESS | |
| FI84327C (en) | Coating device for coating a moving surface | |
| FI66932C (en) | ARRANGEMANG VID LAONGNYPSPRESS | |
| JP2861173B2 (en) | Blade coater | |
| FI92620B (en) | Coating device for coating a roll in a size press, paper or cardboard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |