CA1205325A - Wiper-polishing arrangement for steel plate printing presses - Google Patents
Wiper-polishing arrangement for steel plate printing pressesInfo
- Publication number
- CA1205325A CA1205325A CA000423768A CA423768A CA1205325A CA 1205325 A CA1205325 A CA 1205325A CA 000423768 A CA000423768 A CA 000423768A CA 423768 A CA423768 A CA 423768A CA 1205325 A CA1205325 A CA 1205325A
- Authority
- CA
- Canada
- Prior art keywords
- wiper
- paper
- head
- cylinder
- roller
- 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
- B41F35/00—Cleaning arrangements or devices
- B41F35/02—Cleaning arrangements or devices for forme cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F9/00—Rotary intaglio printing presses
- B41F9/06—Details
- B41F9/08—Wiping mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N3/00—Preparing for use and conserving printing surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
Wiper-polishing apparatus for steel plate printing presses is disclosed, wherein a single supply roll of wiper paper is employed, apparatus. permitting the wiper material to be used on both sides, on one side as it passes over a wiper head, and on its reverse side as it passes over a polisher head.
The apparatus thus employs much less wiper material, and greatly reduces down-time as the frequency with which supply rolls must be replaced is also greatly reduced, inasmuch as a single, larger roll may be employed.
Wiper-polishing apparatus for steel plate printing presses is disclosed, wherein a single supply roll of wiper paper is employed, apparatus. permitting the wiper material to be used on both sides, on one side as it passes over a wiper head, and on its reverse side as it passes over a polisher head.
The apparatus thus employs much less wiper material, and greatly reduces down-time as the frequency with which supply rolls must be replaced is also greatly reduced, inasmuch as a single, larger roll may be employed.
Description
~ ~5i3~ ~
The invention relates to an improvement in wiper-polish-ing apparatus used in steel plate printing presses, whereby a single supply roll of wiper material is used, to ef-fect both wiping and polishing.
In the past separate supply and take-up rolls have been used for each of the wiping and polishing materials, in a steel plate printing press. The size of the rolls of wiping and polishing material is limited by the space available within the steel plate printing press. Prior art apparatus, therefore, is inefficient inasmuch as the need to replace wiping and polishing material occurs relatively frequently. The present invention permits use of a single roll of wiper material, both faces of the wiper material being used. The single roll of wiper material is of a size larger than the combined sizes of the pair of rolls used in prior art apparatus, whereby economy is effected both in the cost of the wiper material, and in the frequency with which it is necessary to replace wiper rolls.
An object of the present invention is to provide a unitary wiping and polishing arrangement, whereby a roll of material of considerably larger dimension, using both faces of the roll, will effect economy of time and expense, as the frequency with which the supply roll will require replacing is reduced, and because both faces of the material are used, cost is substantially reduced.
The invention also permits a saving in time and effort when the roll of wiper material requires replenishing, inasmuch as threading of the material is no longer necessary, on replacement of a roll. The end of the fresh roll of wiper material is taped to the remaining portion of the wiper roll being replaced, to achieve self-threading of the wiper material through the apparatus, as will become clear with respect to the detailed description which follows.
A principal object o-f the ïnvention îs to provide wiper-polishing apparatus for steel plate printing presses having a printing cylinder, comprising: a wiper head and a polisher head adapted -for reciprocal movement against sai~d cylinder; a mount for ~ 2 S
d supply roll of wiper paper having a hard side and a soft side;
a mount for waste material core; roller guide means and roller drive means adapted to guide said wiper paper over said wiper head and said polisher head and to drive said paper from said supply roll to the waste material core; said paper having its hard side facing said cylinder as it passes over said wiping head and its soft side facing said cylinder as it passes over polishing head, and means to maintain a pre-determined amount of slack in said paper at a point between said wiper head and said polisher head.
These and other objects of the invention will become apparent in the following description wherein reference will be made to the accompanying drawings in which:
Figure 1 is a schematic illustration of prior art wiping and polishing equipment in a steel plate printing press;
Figure 2 is a schematic illustration of a prior art device;
Figure 3 is a schematic illustration of the wiper-polish-ing apparatus of the invention;
Figure 4 is a detail of a slack control mechanism for use in the invention; and Figure 5 is a front elevation of the slack control of Figure 4.
Detailed reference will now be made to the drawings wherein like re:Eerence numerals will be used to identify like parts.
In Figure 1 a prior art steel plate printing press wiping-polishing apparatus as is commonly employed today is illus-trated. A steel plate printing cylinder 10 rotates in the direction of arrows 12, as is well known in the art. A wiper bar 14 and a polisher bar 16 face printing cylinder 10, bar 14 being pravided with a supply o-f wiping material indicated by supply roll 18, a polisher ba.r 16 being provided with a supply of polishing material indicated by supply roll 20.
In the past the wiping and polishing material was cloth.
For a. time, burlap was used, and currently, crimpe~. paper is
The invention relates to an improvement in wiper-polish-ing apparatus used in steel plate printing presses, whereby a single supply roll of wiper material is used, to ef-fect both wiping and polishing.
In the past separate supply and take-up rolls have been used for each of the wiping and polishing materials, in a steel plate printing press. The size of the rolls of wiping and polishing material is limited by the space available within the steel plate printing press. Prior art apparatus, therefore, is inefficient inasmuch as the need to replace wiping and polishing material occurs relatively frequently. The present invention permits use of a single roll of wiper material, both faces of the wiper material being used. The single roll of wiper material is of a size larger than the combined sizes of the pair of rolls used in prior art apparatus, whereby economy is effected both in the cost of the wiper material, and in the frequency with which it is necessary to replace wiper rolls.
An object of the present invention is to provide a unitary wiping and polishing arrangement, whereby a roll of material of considerably larger dimension, using both faces of the roll, will effect economy of time and expense, as the frequency with which the supply roll will require replacing is reduced, and because both faces of the material are used, cost is substantially reduced.
The invention also permits a saving in time and effort when the roll of wiper material requires replenishing, inasmuch as threading of the material is no longer necessary, on replacement of a roll. The end of the fresh roll of wiper material is taped to the remaining portion of the wiper roll being replaced, to achieve self-threading of the wiper material through the apparatus, as will become clear with respect to the detailed description which follows.
A principal object o-f the ïnvention îs to provide wiper-polishing apparatus for steel plate printing presses having a printing cylinder, comprising: a wiper head and a polisher head adapted -for reciprocal movement against sai~d cylinder; a mount for ~ 2 S
d supply roll of wiper paper having a hard side and a soft side;
a mount for waste material core; roller guide means and roller drive means adapted to guide said wiper paper over said wiper head and said polisher head and to drive said paper from said supply roll to the waste material core; said paper having its hard side facing said cylinder as it passes over said wiping head and its soft side facing said cylinder as it passes over polishing head, and means to maintain a pre-determined amount of slack in said paper at a point between said wiper head and said polisher head.
These and other objects of the invention will become apparent in the following description wherein reference will be made to the accompanying drawings in which:
Figure 1 is a schematic illustration of prior art wiping and polishing equipment in a steel plate printing press;
Figure 2 is a schematic illustration of a prior art device;
Figure 3 is a schematic illustration of the wiper-polish-ing apparatus of the invention;
Figure 4 is a detail of a slack control mechanism for use in the invention; and Figure 5 is a front elevation of the slack control of Figure 4.
Detailed reference will now be made to the drawings wherein like re:Eerence numerals will be used to identify like parts.
In Figure 1 a prior art steel plate printing press wiping-polishing apparatus as is commonly employed today is illus-trated. A steel plate printing cylinder 10 rotates in the direction of arrows 12, as is well known in the art. A wiper bar 14 and a polisher bar 16 face printing cylinder 10, bar 14 being pravided with a supply o-f wiping material indicated by supply roll 18, a polisher ba.r 16 being provided with a supply of polishing material indicated by supply roll 20.
In the past the wiping and polishing material was cloth.
For a. time, burlap was used, and currently, crimpe~. paper is
-2-1~S32~;
employed. It will be seen that the supply o-f wiping material from roll 18 travels around guide rollers 22 and 24, past the face of wiper bar 1~, around guide roller 26, under the urging of drive roller 28, where the wiper material is taken up on a waste core 30.
The polisher material provided from roll 20, similarly, travels around guide roller 32, past the face of polisher bar 16, around guide rollers 34, 36, and 38, through drive roller 40 adjacent waste material core 42, where it is taken up in roll :Eorm.
As is well known in the art, the intermittent advance oE
the wiper and polishing material is synchronized with the rotation of printing cylinder 10, to achieve the necessary wiping and polishing e-ffect. As is evident from the arrangement illustrated in Figure 1, being an arrangement still in universal use in steel plate printing apparatus, there are severe space restrictions in the apparatus, controlling the maximum size of supply rolls 18 and 20, an.d of take-up rolls 30 and 42.
Referring now to Figure 2, a schematic illustration of the only prior art device known to applicant in which both faces of a wiper material are used, is illustrated. This figure is in fact taken from Canadian patent No. ].4,176, issued in 1883 to Homer Lee. This early attempt to utilize both sides of a wiping ma.terial is the only such attempt known to applicant. I:t will be seen that a. single supply of wiping material is pro~ided at 44, passing across a wiper bar 46, ~ith one face of the wiper material being exposed to a printing cylind`er, thence around guide rollers 48 and 5.0 and across the face of a second wiper bar 52, at which point the wiper material exposes the face opposi.te to the face exposed at wiper bar 46, alla thence to a take-up roll 54. The disclosure o~ this arrangement in the 1883 patent to Lee must ha~e employed burlap as the wiping material, in order to compensate for the strain imposed on the material, during use, and to ensure that the wiping material. ~ould not snap, as the wiper bars are recipro-cated during operation o-f the steel plate cylinder being cleaned.
~oreo~er, the apparatus of the old Lee patent must also ha~e
employed. It will be seen that the supply o-f wiping material from roll 18 travels around guide rollers 22 and 24, past the face of wiper bar 1~, around guide roller 26, under the urging of drive roller 28, where the wiper material is taken up on a waste core 30.
The polisher material provided from roll 20, similarly, travels around guide roller 32, past the face of polisher bar 16, around guide rollers 34, 36, and 38, through drive roller 40 adjacent waste material core 42, where it is taken up in roll :Eorm.
As is well known in the art, the intermittent advance oE
the wiper and polishing material is synchronized with the rotation of printing cylinder 10, to achieve the necessary wiping and polishing e-ffect. As is evident from the arrangement illustrated in Figure 1, being an arrangement still in universal use in steel plate printing apparatus, there are severe space restrictions in the apparatus, controlling the maximum size of supply rolls 18 and 20, an.d of take-up rolls 30 and 42.
Referring now to Figure 2, a schematic illustration of the only prior art device known to applicant in which both faces of a wiper material are used, is illustrated. This figure is in fact taken from Canadian patent No. ].4,176, issued in 1883 to Homer Lee. This early attempt to utilize both sides of a wiping ma.terial is the only such attempt known to applicant. I:t will be seen that a. single supply of wiping material is pro~ided at 44, passing across a wiper bar 46, ~ith one face of the wiper material being exposed to a printing cylind`er, thence around guide rollers 48 and 5.0 and across the face of a second wiper bar 52, at which point the wiper material exposes the face opposi.te to the face exposed at wiper bar 46, alla thence to a take-up roll 54. The disclosure o~ this arrangement in the 1883 patent to Lee must ha~e employed burlap as the wiping material, in order to compensate for the strain imposed on the material, during use, and to ensure that the wiping material. ~ould not snap, as the wiper bars are recipro-cated during operation o-f the steel plate cylinder being cleaned.
~oreo~er, the apparatus of the old Lee patent must also ha~e
-3-~21~53~;
lequired a second roll of wiper material to accomplish polishing, as it is evident ~rom the positioning of the wiper bars shown in Figure 2, (Figure 16 of the old Lee pa~ent), that wiper bar 46 as well as wi.per bar 42, in close proximity~ must both have served the same wiping function.
Thus 7 nowhere in the prior art is there an operable disclosure of a wiping apparatus for use in a steel plate printing press, utilizing a single roll of wiping and polishing material.
In printing apparatus now available, a wiping material is used which has a relatively "hard" face, and a polishing material is used which has a relatively "soft" face. The paper wiping material now employed is slightly crimped, so as to provide a natural, hard face. Ho~ever, the reverse face of wiping material now employed in fact has a relatively soft face, and is suitable for use as a polishing material.
Referring now to Figure 3, a printing cylinder 10 adapted for rotation in the direction of arrows 12 is illustrated, and also illustrated in Figure 3 is w:iper bar 14 and poiisher bar 16.
supply roll o-f wiper material 18 is mounted on a support including a friction brake 56, as is well kno~n in the art~ l~iper l~aterial 18 is threaded past a guide roller 58 from the bottom of supply roll 20, past the face of wiper bar 14, and around the top and rear of roll 20, through guide rollers 60 a.djac.ent drive roller 62. It will be appreciated that as the wiper material advances past guide roller 58, across the face of wiper bar 14 and araund the top and rear of supply roll 20, that in fact the wiper material itself lends assistance to rotation of wiper roll 18, the materi.al travel-ling in the direction of the a.rrows indicated th.ereon. The wiper materia.l i5 threaded between guïde rollers 64 and across the face of wiper bar 16, around guide rollers 66, 68, and 70 to a waste ma.teria.l core 72 mounted on.a roller 74, immecliately abo~e driue roller 76.
A portion.of sla.ck 78 is indicated schematically between dri~e roller 62 an~ gui.de rollers 64, and is indicated genera.ll~ by ~ 2~ S
reference numeral 77. The requirement for provision of some slack between drive roller 62 and the face of ~iper bar 16 will be dis-cussed in detail hereinafter.
From the foregoing description of the apparatus illustra-ted in Figure 3, it will be seen that as the wiper material leaves the underside of the supply roll 18 the face exposed to printing cylinder 10 (the "hard" face) as it passes over wiper bar 14 is the opposite face to that exposed to printing cylinder 10 as the material passes over polisher bar 16 (the "soft" face).
It will be appreciated that as the wiper material is driven by drive roll 62 supply roll 20 of wiper material rotates, intermittently, as is well known in the art. The wipers bars 14 and 16 reciprocate in synchronized arrangement with the rotation of printing cylinder 10, and it is necessary, to prevent breakage of the wiper material, as it is further driven by drive roll 76, following passage over wiper bar 16, to provide a small amount of slack, indi.cated generally at 76 in Figure 3.
A slack control apparatus is illustrated in Figures 4 and 5. At a convenient point between drive roller 62 and guide rollers 64, a slack conlrol roller 80 is provided. Roller 80 is adapted for vertical motion, between a pair o slotted guide bars 82~ 84, slack control roller 80 being urged downwardly by a pair of coil springs 86, 88. It will be appreciated that should the synchroniz.a-tion of the reciprocal movement of wiper bars 14 and 16 require, that a constant supply of slack i5 ensured by slack-control roller 80. While the apparatus disclosed is operable without the slack control described above, providing a quantity of slack is provided in the wiper material between drive roller G~ and polisher head 16, the slack c.ontrol described above a.lso ensures that as waste material is taken up on waste core 72, under the urging of drive roller 76 that the waste material is under sli.ght tension. The pro~ision of this tension is created by slack cantrol roller 80, to ensure slight tension d.uring take up of waste material and thus prevent any tendency for the take-up material to wander on take-up roller 72.
~21~53~
while the provision of the slack control apparatus described makes the operation of the press more convenient, it is not an essential component of this invention.
As the operator of a press embodying this invention observes that wiper supply roll 18 is nearing exhaustion, the wiper material is cut adjacent roll 18, and the substantially empty roll 18 removed, and a fresh roll inserted, with the leading edge of the fresh roll 18 being taped to the trailing edge o~ the wiper material from the exhausted roll. I:n prior art apparatus as illustrated in Figure 1, while the time involved for ~hreading the wiper a.nd polishing roll, on replacement of such rolls is m.inimal, the apparatus disclosed herein further reduces down time when a fresh supply of wiper material is inserted in place~
It is thus evident that the substantial advantages of the apparatus devised by applicant include:
reduction in cost of wiper material by 50~, inasmuch as both -faces o-f the materi.al are employed;
reduction in down time inasmuch as a larger supply of wiper material on a sïngle roll is employed, reducing the frequency at which rolls of fresh wiper material must be installed, further reduction in down time as it is necessa.ry only to replace a single, larger roll of wiper material, which is then self-threaded through the a.pparatus;
greatly reduced disposal cost of used wiper material and greatly reduced storage spac.e requirements for new ~iper material.
These and other objects of the invention will be apparent to those skilled in the art, and the invention should be limited only by the claims appended hereto.
lequired a second roll of wiper material to accomplish polishing, as it is evident ~rom the positioning of the wiper bars shown in Figure 2, (Figure 16 of the old Lee pa~ent), that wiper bar 46 as well as wi.per bar 42, in close proximity~ must both have served the same wiping function.
Thus 7 nowhere in the prior art is there an operable disclosure of a wiping apparatus for use in a steel plate printing press, utilizing a single roll of wiping and polishing material.
In printing apparatus now available, a wiping material is used which has a relatively "hard" face, and a polishing material is used which has a relatively "soft" face. The paper wiping material now employed is slightly crimped, so as to provide a natural, hard face. Ho~ever, the reverse face of wiping material now employed in fact has a relatively soft face, and is suitable for use as a polishing material.
Referring now to Figure 3, a printing cylinder 10 adapted for rotation in the direction of arrows 12 is illustrated, and also illustrated in Figure 3 is w:iper bar 14 and poiisher bar 16.
supply roll o-f wiper material 18 is mounted on a support including a friction brake 56, as is well kno~n in the art~ l~iper l~aterial 18 is threaded past a guide roller 58 from the bottom of supply roll 20, past the face of wiper bar 14, and around the top and rear of roll 20, through guide rollers 60 a.djac.ent drive roller 62. It will be appreciated that as the wiper material advances past guide roller 58, across the face of wiper bar 14 and araund the top and rear of supply roll 20, that in fact the wiper material itself lends assistance to rotation of wiper roll 18, the materi.al travel-ling in the direction of the a.rrows indicated th.ereon. The wiper materia.l i5 threaded between guïde rollers 64 and across the face of wiper bar 16, around guide rollers 66, 68, and 70 to a waste ma.teria.l core 72 mounted on.a roller 74, immecliately abo~e driue roller 76.
A portion.of sla.ck 78 is indicated schematically between dri~e roller 62 an~ gui.de rollers 64, and is indicated genera.ll~ by ~ 2~ S
reference numeral 77. The requirement for provision of some slack between drive roller 62 and the face of ~iper bar 16 will be dis-cussed in detail hereinafter.
From the foregoing description of the apparatus illustra-ted in Figure 3, it will be seen that as the wiper material leaves the underside of the supply roll 18 the face exposed to printing cylinder 10 (the "hard" face) as it passes over wiper bar 14 is the opposite face to that exposed to printing cylinder 10 as the material passes over polisher bar 16 (the "soft" face).
It will be appreciated that as the wiper material is driven by drive roll 62 supply roll 20 of wiper material rotates, intermittently, as is well known in the art. The wipers bars 14 and 16 reciprocate in synchronized arrangement with the rotation of printing cylinder 10, and it is necessary, to prevent breakage of the wiper material, as it is further driven by drive roll 76, following passage over wiper bar 16, to provide a small amount of slack, indi.cated generally at 76 in Figure 3.
A slack control apparatus is illustrated in Figures 4 and 5. At a convenient point between drive roller 62 and guide rollers 64, a slack conlrol roller 80 is provided. Roller 80 is adapted for vertical motion, between a pair o slotted guide bars 82~ 84, slack control roller 80 being urged downwardly by a pair of coil springs 86, 88. It will be appreciated that should the synchroniz.a-tion of the reciprocal movement of wiper bars 14 and 16 require, that a constant supply of slack i5 ensured by slack-control roller 80. While the apparatus disclosed is operable without the slack control described above, providing a quantity of slack is provided in the wiper material between drive roller G~ and polisher head 16, the slack c.ontrol described above a.lso ensures that as waste material is taken up on waste core 72, under the urging of drive roller 76 that the waste material is under sli.ght tension. The pro~ision of this tension is created by slack cantrol roller 80, to ensure slight tension d.uring take up of waste material and thus prevent any tendency for the take-up material to wander on take-up roller 72.
~21~53~
while the provision of the slack control apparatus described makes the operation of the press more convenient, it is not an essential component of this invention.
As the operator of a press embodying this invention observes that wiper supply roll 18 is nearing exhaustion, the wiper material is cut adjacent roll 18, and the substantially empty roll 18 removed, and a fresh roll inserted, with the leading edge of the fresh roll 18 being taped to the trailing edge o~ the wiper material from the exhausted roll. I:n prior art apparatus as illustrated in Figure 1, while the time involved for ~hreading the wiper a.nd polishing roll, on replacement of such rolls is m.inimal, the apparatus disclosed herein further reduces down time when a fresh supply of wiper material is inserted in place~
It is thus evident that the substantial advantages of the apparatus devised by applicant include:
reduction in cost of wiper material by 50~, inasmuch as both -faces o-f the materi.al are employed;
reduction in down time inasmuch as a larger supply of wiper material on a sïngle roll is employed, reducing the frequency at which rolls of fresh wiper material must be installed, further reduction in down time as it is necessa.ry only to replace a single, larger roll of wiper material, which is then self-threaded through the a.pparatus;
greatly reduced disposal cost of used wiper material and greatly reduced storage spac.e requirements for new ~iper material.
These and other objects of the invention will be apparent to those skilled in the art, and the invention should be limited only by the claims appended hereto.
Claims (3)
1. Wiper-polishing apparatus for steel plate printing presses having a printing cylinder and a wiper head and a polisher head adapted for reciprocal movement against said cylinder, comprising:
a mount for a supply roll of wiper paper having a hard side and a soft side;
a mount for a waste material core;
roller guide means and roller drive means adapted to guide said wiper paper over said wiper head and said polisher head and to drive said paper from said supply roll to the waste material core;
means to maintain a pre-determined amount of slack in said paper at a point between said wiper head and said polisher head;
said paper having its hard side facing said cylinder as it passes over said wiping head and its soft side facing said cylinder as it passes over polishing head.
a mount for a supply roll of wiper paper having a hard side and a soft side;
a mount for a waste material core;
roller guide means and roller drive means adapted to guide said wiper paper over said wiper head and said polisher head and to drive said paper from said supply roll to the waste material core;
means to maintain a pre-determined amount of slack in said paper at a point between said wiper head and said polisher head;
said paper having its hard side facing said cylinder as it passes over said wiping head and its soft side facing said cylinder as it passes over polishing head.
2. A wiper-polishing apparatus for steel plate printing presses having a printing cylinder, according to claim 1, said means to maintain slack in said paper comprising a spring-loaded roller mounted above said paper, said spring means urging said roller downwardly against said paper to ensure a quantity of slack therein, said spring means being adapted to permit its associated roller to ride upwardly under the urging of said paper without breaking said paper.
3. A wiper-polishing apparatus for steel plate printing presses having a printing cylinder, comprising:
a mount for a supply roll of wiper paper having a nard side and a soft side;
a mount for a waste material core;
a wiper head adapted for reciprocal movement against said cylinder;
a polisher head adapted for reciprocal movement against said cylinder;
roller guide means and roller drive means adapted to guide said wiping paper from said supply roll to pass over said wiping head, around said supply roll, and thence over said polishing head to said waste material core;
means to maintain a pre-determined amount of slack in said paper at a point between said wiper head and said polisher head;
said paper having its hard side facing said cylinder as it passes over said wiping head and its soft side facing said cylinder as it passes over polishing head.
a mount for a supply roll of wiper paper having a nard side and a soft side;
a mount for a waste material core;
a wiper head adapted for reciprocal movement against said cylinder;
a polisher head adapted for reciprocal movement against said cylinder;
roller guide means and roller drive means adapted to guide said wiping paper from said supply roll to pass over said wiping head, around said supply roll, and thence over said polishing head to said waste material core;
means to maintain a pre-determined amount of slack in said paper at a point between said wiper head and said polisher head;
said paper having its hard side facing said cylinder as it passes over said wiping head and its soft side facing said cylinder as it passes over polishing head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000423768A CA1205325A (en) | 1983-03-16 | 1983-03-16 | Wiper-polishing arrangement for steel plate printing presses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000423768A CA1205325A (en) | 1983-03-16 | 1983-03-16 | Wiper-polishing arrangement for steel plate printing presses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1205325A true CA1205325A (en) | 1986-06-03 |
Family
ID=4124799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000423768A Expired CA1205325A (en) | 1983-03-16 | 1983-03-16 | Wiper-polishing arrangement for steel plate printing presses |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1205325A (en) |
-
1983
- 1983-03-16 CA CA000423768A patent/CA1205325A/en not_active Expired
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Legal Events
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| MKEX | Expiry |