CA1173697A - Ink or dampening fluid transport roll for offset printing presses - Google Patents
Ink or dampening fluid transport roll for offset printing pressesInfo
- Publication number
- CA1173697A CA1173697A CA000371836A CA371836A CA1173697A CA 1173697 A CA1173697 A CA 1173697A CA 000371836 A CA000371836 A CA 000371836A CA 371836 A CA371836 A CA 371836A CA 1173697 A CA1173697 A CA 1173697A
- Authority
- CA
- Canada
- Prior art keywords
- roller
- cylindrical
- offset printing
- roller body
- trunnions
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F7/00—Rotary lithographic machines
- B41F7/20—Details
- B41F7/24—Damping devices
- B41F7/26—Damping devices using transfer rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/26—Construction of inking rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Rotary Presses (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
Abstract
ABSTRACT
The present invention is with respect to cooled rolls, and more specially distributor rolls with a metallic outer face for the transport of ink or dampening fluid in offset presses. The even temperature distribution over the full press width necessary for printing without any trouble conditions is more specially likely to come to an end when the press is shut down for a short time and when the dampening system is turned off. The heat transfer then taking place from the relatively hot press side frames, the driving and the bearing parts to the cooler roll bodies is responsible for trouble conditions, caused by uneven temperature distribution, when the machine is started up again.
The present invention is with respect to cooled rolls, and more specially distributor rolls with a metallic outer face for the transport of ink or dampening fluid in offset presses. The even temperature distribution over the full press width necessary for printing without any trouble conditions is more specially likely to come to an end when the press is shut down for a short time and when the dampening system is turned off. The heat transfer then taking place from the relatively hot press side frames, the driving and the bearing parts to the cooler roll bodies is responsible for trouble conditions, caused by uneven temperature distribution, when the machine is started up again.
Description
~ L~3~;9r~
An ink or dampenirlg flui.d ~ransport roll for offset printing presses The present invention is with respect to ink or dampe-ning fluid transport rolls for offset printing presses. The dampening fluid and ink films on such rolls is likely to be greatly changed by changes in temperature because of its low thickness: while in the case of the dampening fluid film an increase in temperature will be the cause of a higher rate of evaporation and undesired effects on the printing process, in the case of the ink film it is more specially the change in the physical properties of the ink which come into play.
The rolls in the inking and dampening units of printing pres-ses are increased in temperature as the press is running, the temperature increasing with the length of the run and the 5 press speed.
For taking care of shortcomings in this respect the ge-nerally used measure in the printing trade is that of cooling the dampening fluid for cutting down the rate of evaporation~
this more specially being necessary if -the dampening liquid is mixed with alcohol, because,if the alcohol is evaporated quickly, it will not undertake its function of lowering the surface tension of the fluid.
Furthermore suggestions have been made in the past for cooling the ink rolls of an inking system and controlling their temperature, more specially in the case of distributor rolls.
On taking these steps the conditions of the different..
i 1~3fi9~
parts of the nl~te~hi.ne i.n a rlln rnay be k~pt even, arld Ino~e spe-clally an even temperature will be kept up over the full press width along the rolls. A condition for this is however that the press only be run under normal conditions and for example not in very long runs at high press speeds in which the cooling system for the ink rolls of the machine and fur-thermore the system for cooling the dampening fluid rolls may well not have their full desired effect so that there will be a change or gradient in temperature along the rolls towards the middle of the press.
Furthermore when the press is stopped for a short time and/or-the dampening fluid system and cooling system are shut down, there will at once be a transfer of heat from the rela-tively hot side frames, gearing, bearings and roll trunnions or journals towards the cooler bodies of the rolls. This trans-fer will more readily take place because such parts have a direct or an indirect,roundabout metal-to-metal contact part with a high thermal conductivity between them. For this rea-son the heat transfer is high at the outer edges of the roll bodies with the outcome of a steeper temperature gradient to-wards the middle of the press. On starting the machine up again, trouble condi.tions will be probable, that is to say, for Pxam-ple, the relatively thin dampening fluid film on the dampe-ning fluid distributor cylinder will be more quickly evaporated on the hotter parts of the roll body than in the middle part which is at a lower temperature and the pressman will be for-ced to take the step of increasing the dampening rate gene-rally, so that necessarily there will be an overgreat dampe-ning rate in the middle part of the roll body, this being ~ :l73~;~7 responsible ill turn for uneven inking or c~en ~Ja~t~.
One purpose of the i.nvention is that of so designiny the rolls used for ink or dampening fluid transport, and more specially the distributor rolls that the temperature of the dampening fluidand of the ink will be kept at a more or less unchanging level, even on shutting down the press for a short time and under special printing conditions, so that temperatures along the length of the rolls will be the same or at least temperature differences will be kept down to a 10 low level.
For effecting this purpose, in the invention between the outer face of the rolls and the driving and bearing parts likely to be heated up on running the press there are parts with a low thermal conductivity.
The useful effects produced by the invention are to be seen, generally speaking, in that because there is now no metal-to-metal, and for this reason thermally conducting brid-ge, the heating up of the end plates, drivi.ng parts and bea-rings in the dampening and inking unit do not have any unde-sired effects on the outer faces of the rolls, that is to say such outer faces are.kept at a desired temperature. Such a system may be simply produced. In some cases it is even possib-le to do without a roll cooling system.
This design of the rolls is more specially useful for dampening fluid distributor cylinders It is however further-more of great value for other rolls in the dampening fluid and inking units and may be produced with hardly any change in design.
1 ~73~)~7 On m-lkin(3 l~se of t~le te~chin~ o~ ~he present in~ention it is furthermore to be taken into account that the tneasures, taken for insulating the outer faces of the rolls transpor-ting the dampening fluid or the ink from the driving and bearing parts of the rolls which become heated on running the press, may be taken in part or - dependent on the needs of the press - in full. It is possible in fact only to take one of the measures as detailed in the claims in the case of rolls with which less trouble is likely, while rolls which are spe-cially likely to be heated, or in the case of which insula-tion is more important, more than one of these measures may be taken.
An account will now be given of different working exam-ples of the invention to be seen in the figures.
Figure 1 is a view of a many-part roll for ink and dampening fluid transport with a screw rod running through it for its full length.
Figure 2 is a view of a many-part roll for ink or dampening fluid transport with trunnions or journals screwed in position and fixed to it by way of thermally insulating inbetween parts.
Figure 3 is a view of a many-part roll for ink or dampening fluid transport with thermally insulating coating at the end of the trunnion or journal.
5 Figure 4 is a view of a single-piece roll for ink or dampe-ning fluid transport with a driving part fixed to it.
The roll 3 offigure 1, which is turningly supported in side frames 1, 2 of the press, is mainly made up of the two ~ ~ ~36g~
bearing trurlniorls or jQurnals ~ .3nd 5 an(~ thc~ roll }~o~y 6 The roll ~earings 7, 8 may be plain be~rings or rolli~ ele-ment bearings in a way dependent on the design needs in a given case.
One trunnion 4 has a hole 9 taking up a threaded rod 10 running through the hollow roll body 6 for its full length and screwed into the bearing trunnion 5, whose end face is placed against roll body 6, trunnion 5 having a threaded hole 11 taking up the threaded rod 10.
Between the roll body 6 and the trunnions or journals 4, 5 fixed to its two ends there is, at each end, a thermally insulating spacer piece 12 or washer, for example of lami-nated cloth having the function of a separating part and at the same time used for keeping the trunnions 4, 5 on true.
Because the threaded rod 10 is screwed into bearing trunnion 5 there is between the bearing trunnions 4 and 5 and : the roll body 6 a more or less strong non-positive connection whose limiting torque will be dependent on how tight threaded rod 10 is done up. The leEt hand end of threaded rod 10 is keyed in position by pin 13.
In tne case of rolls designed on these lines~ that is to say in the case of which in some cases very high torques may be produced because of very high running up speeds or accelerations and because of a high moment of inertia while at the same time other rolls are turned by it by friction between the outer faces of the rollsl or if rolls are run in opposite directions, it is best to have a keyed connection, for example using pins between bearing journals 4, 5I washers ~ ~369~
12 and roll.er body 6.
The desicJns of the inverltion to be seen in figures 2 -to 4 are the same at.both ends of the rolls so that the left hand ends of the dampening fluid or ink rolls supported in the left hand side frame 2 of the press are not given in the figures.
In figure 2 the bearing journals 14 supported in side frames 1, 2 are directly joined to the ends of -the roll body 6 by screws. On the same lines as was the case with the de-sign of figure 1 a thermally insulating lnner part 15 isresponsible for thermally separating or insulating roll body 6 from trunnion 14 while at the same time keeping the trun-nion 14 on true, that is to say on the same axis as the outer face of roll body 6.
Bushes 17 run into the journal ends 16 and made of a material with a low thermal conductivity take up the fixing screw 18,thus putting an end to a roundabout metal-to-metal connection between the trunnion 14 and the roll body 6 by way of fixing screws 18.
In the case of the working example of figure 3 as well the roll, designed for ink or dampening fluid transport, is made in more than one piece. In this case as well roll 3 has bearing trunnions 19 supported in the side frames 1 and 2 of the press 19 which are joined to the end of roll body 6 by fixing screws 18 and inbetween bushes 20.
This design is mainly different to that of figure 2 in that in each case at the end of the roll body 6 the end 21 of the trunnion has a coating 22 of a material with a low thermal conductivity.
~ 1~369~
In the case of this form of the invention there is, for this reason, no thermal connection between the outer face, used for transpor-t of the damping fluid or ink, of the roll 3 and the driving and driving and bearing parts 1, 2, 7, 8, 25 of the roll 3 which become hot on operation of the press.
In the form of the invention to be seen in figure 4 roll 23 is made in a single piece. For putting an end to any heat conducting connection between the outer face, used for trans-port of the dampening fluid or ink, of roll 23, more specially with side frames 1, 2 of the press and the driving part 25 or gear placed on roll trunnion 24, the roll bearings 7 them-selves are made of a material with a low thermal conductivity.
Furthermore, between roll 23 and driving part 25 there is a heat insulating bush 26 which is so arranged and so joined up with the roll body 29 and the driv1ng part 25 by screws 27 and 28 that, even although there is no metal-to-metal connection, torque transmission is never-theless possible.
The invention is naturally notlimited to the working examples to be seen in figures 1 to ~ and of which an accoun-t has been given. The different purposes which have to be effec-ted by the different rolls for ink and dampening fluid trans-port make different mechanical designs of the rolls necessary.
For this reason other different forms of the invention, based on its general teaching, are possible.
An ink or dampenirlg flui.d ~ransport roll for offset printing presses The present invention is with respect to ink or dampe-ning fluid transport rolls for offset printing presses. The dampening fluid and ink films on such rolls is likely to be greatly changed by changes in temperature because of its low thickness: while in the case of the dampening fluid film an increase in temperature will be the cause of a higher rate of evaporation and undesired effects on the printing process, in the case of the ink film it is more specially the change in the physical properties of the ink which come into play.
The rolls in the inking and dampening units of printing pres-ses are increased in temperature as the press is running, the temperature increasing with the length of the run and the 5 press speed.
For taking care of shortcomings in this respect the ge-nerally used measure in the printing trade is that of cooling the dampening fluid for cutting down the rate of evaporation~
this more specially being necessary if -the dampening liquid is mixed with alcohol, because,if the alcohol is evaporated quickly, it will not undertake its function of lowering the surface tension of the fluid.
Furthermore suggestions have been made in the past for cooling the ink rolls of an inking system and controlling their temperature, more specially in the case of distributor rolls.
On taking these steps the conditions of the different..
i 1~3fi9~
parts of the nl~te~hi.ne i.n a rlln rnay be k~pt even, arld Ino~e spe-clally an even temperature will be kept up over the full press width along the rolls. A condition for this is however that the press only be run under normal conditions and for example not in very long runs at high press speeds in which the cooling system for the ink rolls of the machine and fur-thermore the system for cooling the dampening fluid rolls may well not have their full desired effect so that there will be a change or gradient in temperature along the rolls towards the middle of the press.
Furthermore when the press is stopped for a short time and/or-the dampening fluid system and cooling system are shut down, there will at once be a transfer of heat from the rela-tively hot side frames, gearing, bearings and roll trunnions or journals towards the cooler bodies of the rolls. This trans-fer will more readily take place because such parts have a direct or an indirect,roundabout metal-to-metal contact part with a high thermal conductivity between them. For this rea-son the heat transfer is high at the outer edges of the roll bodies with the outcome of a steeper temperature gradient to-wards the middle of the press. On starting the machine up again, trouble condi.tions will be probable, that is to say, for Pxam-ple, the relatively thin dampening fluid film on the dampe-ning fluid distributor cylinder will be more quickly evaporated on the hotter parts of the roll body than in the middle part which is at a lower temperature and the pressman will be for-ced to take the step of increasing the dampening rate gene-rally, so that necessarily there will be an overgreat dampe-ning rate in the middle part of the roll body, this being ~ :l73~;~7 responsible ill turn for uneven inking or c~en ~Ja~t~.
One purpose of the i.nvention is that of so designiny the rolls used for ink or dampening fluid transport, and more specially the distributor rolls that the temperature of the dampening fluidand of the ink will be kept at a more or less unchanging level, even on shutting down the press for a short time and under special printing conditions, so that temperatures along the length of the rolls will be the same or at least temperature differences will be kept down to a 10 low level.
For effecting this purpose, in the invention between the outer face of the rolls and the driving and bearing parts likely to be heated up on running the press there are parts with a low thermal conductivity.
The useful effects produced by the invention are to be seen, generally speaking, in that because there is now no metal-to-metal, and for this reason thermally conducting brid-ge, the heating up of the end plates, drivi.ng parts and bea-rings in the dampening and inking unit do not have any unde-sired effects on the outer faces of the rolls, that is to say such outer faces are.kept at a desired temperature. Such a system may be simply produced. In some cases it is even possib-le to do without a roll cooling system.
This design of the rolls is more specially useful for dampening fluid distributor cylinders It is however further-more of great value for other rolls in the dampening fluid and inking units and may be produced with hardly any change in design.
1 ~73~)~7 On m-lkin(3 l~se of t~le te~chin~ o~ ~he present in~ention it is furthermore to be taken into account that the tneasures, taken for insulating the outer faces of the rolls transpor-ting the dampening fluid or the ink from the driving and bearing parts of the rolls which become heated on running the press, may be taken in part or - dependent on the needs of the press - in full. It is possible in fact only to take one of the measures as detailed in the claims in the case of rolls with which less trouble is likely, while rolls which are spe-cially likely to be heated, or in the case of which insula-tion is more important, more than one of these measures may be taken.
An account will now be given of different working exam-ples of the invention to be seen in the figures.
Figure 1 is a view of a many-part roll for ink and dampening fluid transport with a screw rod running through it for its full length.
Figure 2 is a view of a many-part roll for ink or dampening fluid transport with trunnions or journals screwed in position and fixed to it by way of thermally insulating inbetween parts.
Figure 3 is a view of a many-part roll for ink or dampening fluid transport with thermally insulating coating at the end of the trunnion or journal.
5 Figure 4 is a view of a single-piece roll for ink or dampe-ning fluid transport with a driving part fixed to it.
The roll 3 offigure 1, which is turningly supported in side frames 1, 2 of the press, is mainly made up of the two ~ ~ ~36g~
bearing trurlniorls or jQurnals ~ .3nd 5 an(~ thc~ roll }~o~y 6 The roll ~earings 7, 8 may be plain be~rings or rolli~ ele-ment bearings in a way dependent on the design needs in a given case.
One trunnion 4 has a hole 9 taking up a threaded rod 10 running through the hollow roll body 6 for its full length and screwed into the bearing trunnion 5, whose end face is placed against roll body 6, trunnion 5 having a threaded hole 11 taking up the threaded rod 10.
Between the roll body 6 and the trunnions or journals 4, 5 fixed to its two ends there is, at each end, a thermally insulating spacer piece 12 or washer, for example of lami-nated cloth having the function of a separating part and at the same time used for keeping the trunnions 4, 5 on true.
Because the threaded rod 10 is screwed into bearing trunnion 5 there is between the bearing trunnions 4 and 5 and : the roll body 6 a more or less strong non-positive connection whose limiting torque will be dependent on how tight threaded rod 10 is done up. The leEt hand end of threaded rod 10 is keyed in position by pin 13.
In tne case of rolls designed on these lines~ that is to say in the case of which in some cases very high torques may be produced because of very high running up speeds or accelerations and because of a high moment of inertia while at the same time other rolls are turned by it by friction between the outer faces of the rollsl or if rolls are run in opposite directions, it is best to have a keyed connection, for example using pins between bearing journals 4, 5I washers ~ ~369~
12 and roll.er body 6.
The desicJns of the inverltion to be seen in figures 2 -to 4 are the same at.both ends of the rolls so that the left hand ends of the dampening fluid or ink rolls supported in the left hand side frame 2 of the press are not given in the figures.
In figure 2 the bearing journals 14 supported in side frames 1, 2 are directly joined to the ends of -the roll body 6 by screws. On the same lines as was the case with the de-sign of figure 1 a thermally insulating lnner part 15 isresponsible for thermally separating or insulating roll body 6 from trunnion 14 while at the same time keeping the trun-nion 14 on true, that is to say on the same axis as the outer face of roll body 6.
Bushes 17 run into the journal ends 16 and made of a material with a low thermal conductivity take up the fixing screw 18,thus putting an end to a roundabout metal-to-metal connection between the trunnion 14 and the roll body 6 by way of fixing screws 18.
In the case of the working example of figure 3 as well the roll, designed for ink or dampening fluid transport, is made in more than one piece. In this case as well roll 3 has bearing trunnions 19 supported in the side frames 1 and 2 of the press 19 which are joined to the end of roll body 6 by fixing screws 18 and inbetween bushes 20.
This design is mainly different to that of figure 2 in that in each case at the end of the roll body 6 the end 21 of the trunnion has a coating 22 of a material with a low thermal conductivity.
~ 1~369~
In the case of this form of the invention there is, for this reason, no thermal connection between the outer face, used for transpor-t of the damping fluid or ink, of the roll 3 and the driving and driving and bearing parts 1, 2, 7, 8, 25 of the roll 3 which become hot on operation of the press.
In the form of the invention to be seen in figure 4 roll 23 is made in a single piece. For putting an end to any heat conducting connection between the outer face, used for trans-port of the dampening fluid or ink, of roll 23, more specially with side frames 1, 2 of the press and the driving part 25 or gear placed on roll trunnion 24, the roll bearings 7 them-selves are made of a material with a low thermal conductivity.
Furthermore, between roll 23 and driving part 25 there is a heat insulating bush 26 which is so arranged and so joined up with the roll body 29 and the driv1ng part 25 by screws 27 and 28 that, even although there is no metal-to-metal connection, torque transmission is never-theless possible.
The invention is naturally notlimited to the working examples to be seen in figures 1 to ~ and of which an accoun-t has been given. The different purposes which have to be effec-ted by the different rolls for ink and dampening fluid trans-port make different mechanical designs of the rolls necessary.
For this reason other different forms of the invention, based on its general teaching, are possible.
Claims (11)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A roller for transporting an ink or dampening fluid medium in an offset printing machine comprising a cylindrical roller body formed with a heat conductive medium transporting cylindrical wall, means for driving and supporting said roller and low thermal conductivity members disposed adjacent either end of said cylindrical roller body and intermediate said cylindrical roller body and said drive and support means in a manner such that heat transfer between said cylinder roller body and said drive and support means passes through one of said low thermal conductivity members to thereby reduce heat transfer from said drive and support means to said cylindrical roller body.
2. A roller for transporting an ink or dampening liquid medium in an offset printing machine comprising a cylindrical roller body formed with a heat conductive medium transporting cylindrical wall and heat conductive end walls integral with the cylindrical wall and extending transversely thereto at opposite ends thereof, means for driving and supporting the roller, the driving and supporting means being heated due to the operation of the printing machine and components having a low thermal conductivity disposed intermediate the heat conductive end walls of the roller body and the means for driving and supporting the roller to minimize heat flow between the medium transporting cylindrical wall of the roller body and the roller driving and supporting means.
3. A roller as claimed in Claims 1 or 2, including bearing journals disposed at opposite ends of said cylindrical wall and coaxial therewith to allow rotation of said cylindrical body about the axis of said journals, said journals being secured to said cylindrical roller body by said low thermal conductivity members.
4. A roller as claimed in Claim 1 or 2, further including roll bearings made of low thermal conductivity material for supporting said drive and support means within the offset printing machine.
5. A roller as claimed in Claim 1 or 2, wherein said drive means includes a separate drive member disposed intermediate the offset printing machine and the cylindrical roller body, said drive member including a roller trunnion having an insulating bushing separating the trunnion from the cylindrical roller body and wherein the roll trunnion includes a further bushing for insulating the trunnion from the offset printing machine.
6. A roller as claimed in Claim 1 or 2, wherein the roller is made up of a number of pieces and is turningly supported in the side frames of an offset printing press, said roller having trunnions either side of said cylindrical body interconnected by a threaded rod stretching along the full length of the roller and between the roller body and the bearing trunnions.
7. A roller as claimed in Claim 1 or 2, wherein the roller is made up of a number of pieces and is turningly supported in the side frames of an offset printing press, said roller including bearing trunnions fixed to the end of the roller body by heat insulating components disposed between the trunnions and the cylindrical roller wall.
8. A roller as claimed in Claim 1 or 2, wherein the roller is made up of a number of pieces and is turningly supported in the side frames of an offset printing press, said roller, including bearing trunnions, fixed to the end of the roller body wherein the ends of the trunnions located within the roller body are provided with a coating of a material having a low thermal conductivity.
9. A roller as claimed in Claim 1 or 2, wherein the roller is made up of a number of pieces and is turningly supported in the side frames of an offset printing press, said roller including bearing trunnions fixed to the end of the roller body with a heat insulating components disposed between the trunnions and the cylindrical roller wall and wherein the roller trunnions are fixed to the roller body by fixing screws and a bushing is provided between the trunnion and the roller which is made of a low thermal conductivity to thereby stop any round about metal-to-metal contact between the trunnion and the cylindrical wall.
10. A roller as claimed in Claim 1 or 2, wherein the roller is made up of a number of pieces and is turningly supported in the side frames of an offset printing press, said roller including bearing trunnions fixed to the end of the roller body wherein the ends of the trunnions located within the roller body are provided with a coating of a material having a low thermal conductivity and wherein the roller trunnions are fixed to the roller body by fixing screws and a bushing is provided between the trunnion and the roller which is made of a low thermal conductivity to thereby stop any round about metal-to-metal contact between the trunnion and the cylindrical wall.
11. A roller as claimed in Claim 1 or 2, wherein the roller is made up of a number of pieces and is turningly supported in the side frames of an offset printing machine, said drive and support means including a drive shaft placed on a roll trunnion and is separated from the cylindrical roller body by an insulated bushing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3009638A DE3009638C2 (en) | 1980-03-13 | 1980-03-13 | Rollers for ink or dampening solution transport in offset printing machines |
| DEP3009638.9 | 1980-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1173697A true CA1173697A (en) | 1984-09-04 |
Family
ID=6097092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000371836A Expired CA1173697A (en) | 1980-03-13 | 1981-02-26 | Ink or dampening fluid transport roll for offset printing presses |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0036043A1 (en) |
| JP (1) | JPS5831309B2 (en) |
| CA (1) | CA1173697A (en) |
| DE (1) | DE3009638C2 (en) |
| ES (1) | ES8200269A1 (en) |
| IT (1) | IT1135302B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3242066A1 (en) * | 1982-11-13 | 1984-05-17 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | COOLING ROLLER WITH SELECTED DIFFERENT COOLING ZONES |
| DE3342877C1 (en) * | 1983-11-26 | 1985-01-10 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Lifter inking unit for a rotary printing machine |
| DE3431149C2 (en) * | 1984-08-24 | 1986-07-24 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Coaxial shaft extension for rollers of rotary printing machines |
| WO2018135204A1 (en) * | 2017-01-19 | 2018-07-26 | パナソニックＩｐマネジメント株式会社 | Roller device and printing machine |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT6591B (en) * | 1900-01-29 | 1902-01-25 | Josef Schmittal | |
| GB190713130A (en) * | 1907-06-06 | 1908-06-04 | Jasper Wetter | Improvements in and connected with Inking Rollers for Printing Machines. |
| DE830962C (en) * | 1949-12-28 | 1952-02-11 | Guenther Wagner Fa | Dampening device for duplicating machines, especially mirror transfer printers |
| US2912556A (en) * | 1958-05-02 | 1959-11-10 | Farrel Birmingham Co Inc | Electrically heated roll for calenders or the like |
| US3887250A (en) * | 1970-03-06 | 1975-06-03 | Vepa Ag | Godet for use in drawing apparatus and drum dryer units |
| US3834205A (en) * | 1972-12-20 | 1974-09-10 | Procter & Gamble | Selectively insulated mill roll |
| GB1390688A (en) * | 1972-12-27 | 1975-04-16 | Simon Vk Ltd | Printing presses |
| DE2620381A1 (en) * | 1976-05-08 | 1977-11-17 | Weitmann & Konrad | Humidifying roll esp. for offset printing - has hydrophilic facing bonded by graft polymerisation to elastic base |
| DE2658380B2 (en) * | 1976-12-23 | 1979-02-08 | Grapho-Metronic Mess- Und Regeltechnik Gmbh & Co Kg, 8000 Muenchen | Inking roller for printing machines |
-
1980
- 1980-03-13 DE DE3009638A patent/DE3009638C2/en not_active Expired
- 1980-12-16 EP EP80107931A patent/EP0036043A1/en not_active Ceased
-
1981
- 1981-01-22 ES ES498741A patent/ES8200269A1/en not_active Expired
- 1981-02-05 IT IT19514/81A patent/IT1135302B/en active
- 1981-02-26 CA CA000371836A patent/CA1173697A/en not_active Expired
- 1981-03-12 JP JP56034665A patent/JPS5831309B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56144158A (en) | 1981-11-10 |
| ES498741A0 (en) | 1981-11-01 |
| IT1135302B (en) | 1986-08-20 |
| EP0036043A1 (en) | 1981-09-23 |
| DE3009638A1 (en) | 1981-09-17 |
| DE3009638C2 (en) | 1982-11-04 |
| ES8200269A1 (en) | 1981-11-01 |
| JPS5831309B2 (en) | 1983-07-05 |
| IT8119514A0 (en) | 1981-02-05 |
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