US3154012A - Means for registering printing plates - Google Patents

Means for registering printing plates Download PDF

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Publication number
US3154012A
US3154012A US183973A US18397362A US3154012A US 3154012 A US3154012 A US 3154012A US 183973 A US183973 A US 183973A US 18397362 A US18397362 A US 18397362A US 3154012 A US3154012 A US 3154012A
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United States
Prior art keywords
plate
printing
cylinders
axial
cylinder
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Expired - Lifetime
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US183973A
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English (en)
Inventor
Fischer Hermann
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MAN AG
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MAN Maschinenfabrik Augsburg Nuernberg AG
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Application filed by MAN Maschinenfabrik Augsburg Nuernberg AG filed Critical MAN Maschinenfabrik Augsburg Nuernberg AG
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Publication of US3154012A publication Critical patent/US3154012A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
    • B41F27/1225—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly
    • B41F27/1231—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly by translatory motion substantially tangential to support surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/005—Attaching and registering printing formes to supports
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/36—Means for registering or alignment of print plates on print press structure

Definitions

  • This invention relates to the placement and adjustment of printing plates on the plate cylinders of printing presses and, more particularly, to the exact positioning and registering of a plurality of plates on several plate cylinders of multi-color printing presses so that sequential printing impressions from all the plates will be in proper register one with the others on the paper or other material being printed.
  • each print- 1 ing plate e.g., one for each different color to be printed
  • each successive impression thereon by each successive printing plate will be precisely positioned longitudinally and transversely with respect to the other printing impressions and within tolerances of tiny fractions of an inch in order that the Various sequential impressions will cooperate to form the desired final colored efiect.
  • the respective cooperating printing plates as produced include color guide or register marks on the face of each plate, usually in the form of crosses, whereby, if the various plates are positioned on their respective plate cylinders so that the register marks on each plate all coincide on the paper being printed as it passes through the press, then the respective printing images or areas of all the plates will be properly and precisely positioned with respect to each other.
  • such arrangements may require an undesirably detailed cooperation between the man making the printing plate and the printer who is to position it on the press to an extent inconsistent with the economical desires of mass produced printing plates for large press 1 runs, frequently occurring in different printing plants (as with the printing of mass circulation weekly magazines, etc.), nor do such arrangements include automatic compensation or accommodation of inevitable structural or performance characteristic variations between plate cylinders on different printing presses or even as among the several plate cylinders on a single press.
  • circumferential and axial scales or calibrations are permanently provided on the various plate cylinders and the plate clamping means thereof, and in a manner for individual adjustment to coordinate any particular idiosyncrasies of one cylinder with the operation of all the others, and
  • circumferential and axial scales may each be independently adjusted for the individual plate cylinder, and the plate clamping mechanism with the plate clamp therein may be adjusted individually both circumferentially and axially to position the plate in precise register with each of the scales notwithstanding that the axial scale or calibrations may be mounted on the plate clamping mechanism and permanently adjusted with respect to the plate cylinder.
  • FIG. 1 is a somewhat diagrammatic or schematic view of a printing plate for use in accordance herewith;
  • FIG. 2 is a partial transverse section through a portion of a printing press plate cylinder and mechanism therein embodying and for practicing this invention, taken along the line IIII of FIG. 3;
  • FIG. 3 is a partial top plan view, with parts broken away, of the arrangement of FIG. 2 generally in the direction indicated by arrow A.
  • a printing plate lil having on the surface thereof an ink-receiving printing image 11 for printing on paper or other material to form on the paper a single color impression portion of a multi-color image to be printed.
  • Image 11 may be impressed upon plate 10 in the illustrated embodiment by conventional photoengraving or photolithographic techniques.
  • a plurality of plates 10 may be conveniently and conventionally produced with a plurality of absolutely identical images 11 for use in a plurality of printing presses for simultaneously printing in a magazine or other material to be printed on a plurality of presses for a large volume press run.
  • a similar plurality of other and different printing plates are produced, as will be understood, with other printing images thereon each for printing other single colors to be superimposed on the image areas of the paper being printed to provide the final multi-color result desired.
  • each image on each plate may be subject to manufacturing variations or inaccuracies, either because the plates are not precisely the same size or because, during exposure of the plate to impress the image thereon photographically, some minute inaccuracy in the placement of the image on the plate surface occursall with the result that perfect registry of all the multi-color printing impressions on the paper after printing to form the desired composite image may not accurately be obtained merely by positioning each plate on its respective plate cylinder with the edges of the plate aligned axially and circumferentially with the edges of other printing plates on other plate cylinders.
  • register marks 13 which are usually in the form of crosses and are positioned in portions of the plate surface beyond that area of the printed paper to be occupied by the composite multi-color image.
  • register marks 13 may be impressed photographically at the same time as the image 11 is impressed on plate It and with precisely the same exactitude and accuracy, so that precise registering of all the register marks 13 on each of the multi-cclor plates 10 will indicate the desired registering of the multiple images 11 printed therefrom.
  • each printing plate 10 is to be positioned and precisely aligned on its respective plate cylinder so that the register marks 13 will contact the paper being printed, as the plate cylinder rotates, at exactly the same point as the paper is contacted by the register marks 13 on other plates 10 on other plate cylinders.
  • the register marks 13, particularly if they are in the conventional form of crosses, are extended clear to the edges of the printing plate 10, as by longitudinal lines 14 and transverse lines 15, which may be merely simple pencil lines drawn on the surface of the plate prior to the positioning thereof on the plate cylinder.
  • a portion of a plate cylinder Zl is illustrated as a generally conventional plate cylinder adapted for the mount-ing of plate 19 therearound to make successive impressions on paper to be printed as the plate cylinder rotates and the paper comes in contact with the surface of printing plate 10 on the cylinder.
  • cylinder 20 is 1mwhat longer than the maximum width of the one or more plates intended to be placed therearound, thus including end portions 21 forming circumferential surfaces at either end of cylinder beyond the lateral extent of the printing plates 10 thereon.
  • cylinder 20 includes one or more axially extending recesses defined by axial shoulders 22 and 23 for accommodating mechanism for clamping the opposite ends of plate 10 around cylinder 20 and with such clamping mechanism depressed within the recess between shoulders 22 and 23 so as not to protrude outwardly beyond the circumferential surface of the cylinder.
  • clamping rails 24 and 25 with which are associated clamping bars 26 and 27 forming clamping jaws (preferably serrated as indicated at 28) for the clamping engage ment therebetween of opposit axial edges of printing plate 10 to hold the printing plate around cylinder 20.
  • Such clamping is effected, in known manner, as by providing a plurality of clamping bolts 30 through clamping bars 26 and 27 and threadably engaged with clamping rails 24 and 25 for urging these members together clamping plates 10 therebetween.
  • Mechanism is also provided in accordance herewith for moving plate 16 both axially and circumferentially over the surface of cylinder 20 after the plate is clamped by clamping bars 26 and 27, for the purpose of achieving thefinal fine or precise positioning of image 11 and register marks .13 with respect to the surface of cylinder 29.
  • Such mechanism includes, in the illustrated embodiment, guide and mounting bars or blocks 31 and 32 on which are mounted, respectively, clamping rails 24 and 25 for limited sliding movement both axially and circumferentially with respect thereto.
  • Clamping rails 24 and 25 are slightly shorter than the axial distance between the opposite end portions 21 of the cylinder.
  • Axial adjusting screws 33 are provided threadably engaged through end portions 21 of cylinder 20, with the inner ends of screws 33 engaging opposite ends of each of the clamping rails 24 and 25, whereby, as will be understood, adjustment of screws 33 will move and position clamping bars 24 and 25 axially of cylinder 20, and will similarly axially position plate It) on cylinder as clamped between the respective sets of clamping rails 24 and and clamping bars 26 and 27
  • a similar plurality of adjusting screws 35 is threadably engaged through clamping rail 25 and bearingagainst axial shoulder 23 for similarly and cooperatively adjusting and positioning the opposite axial edge of
  • a calibrated scale 40 which may satisfactorily be a calibrated metal strip adapted to slide around cylinder 20 and with the opposite ends thereof being affixed to bolts 41 engaging blocks 42 fixed to end portions 21 of cylinder 20.
  • adjustment of nuts 43 on bolts 41 moves and positions and adjusts calibrated scale 40 at various positions around cylinder 20.
  • all the various calibrated scales 4% on all the plate cylinders of a multi-color printing press (or a plurality thereof) can be precisely adjusted so that the same calibration on each of the scales 4i?
  • the scales 4%) are first adjusted or calibrated to coordinate all the plate cylinders 20 (which adjustment, of course, need not be made repeatedly each time the printing press is reused), and the printing plates 1i) are placed around the cylinders 20 with the opposite axial edges of plates 10 clamped by clamping bars 26 and 27 by tightening the various bolts securely. Thereafter, it is only necessary to adjust the adjusting screws 34 and so as to move the printing plates around the plate cylinders sufficiently to bring the guide lines 15, and the register points 13 indicated thereby, to a particular calibration on preset scale 40, as indicated in FIG. 3.
  • positioning guide lines 15 on each of the printing plates at the same calibration on each of the preset scales on each of the printing cylinders auto matically and precisely positions all the images 11 on all the printing plates 10 so they will be positioned angularly with respect to the cylinders 20 to strike the paper at the proper place as it passes through the printing press.
  • Such mechanism includes axially extending calibrated scales 50 and 51 which, in the illustrated embodiment, overlie and are carried by clamping bars 26 and 27 and are mounted thereon for limited free axial sliding movement With respect thereto.
  • screws 52 threadably engage the clamping bars 26 and 27 through elongated slots 53 in scales 50 and 51 with a washer or shoulder under the head of screws 52, so that scales 50 and 51 may slide axially with respect to the screws 52 at least to the extent defined by the lengths of slots 53.
  • Bracket 57 includes an elongated axial slot 58 through which it is aflixed to scale 50 (and 51) as by cap screws 59 threadably engaged with scales 50 or 51, whereby the axial extent by which bracket 57 and roller 55 thereon extends beyond the ends of scales 50 or 51 is simply adjusted by loosening cap screws 59 and moving bracket 57 axially with respect to either scale 50 or 51 before tightening the cap screws again.
  • each of the clamping rails 24 and 25 may be moved axially of cylinder 20 by adjustment of adjusting screws 33, as previously described, and without similar axial movement of scales 50 and 51.
  • scales 50 and 51 also include an oversize opening 60 through which access to clamping screw 30 is obtained notwithstanding different relative positionings of the scales 50 and 51 axially with respect to the clamping bars 26 and 27.
  • the various axial scales 50 and 51 can readily be adjusted on all plate cylinders 20 and axially with respect thereto (by adjusting the axial positioning of the clamping scales with respect to brackets 57 and rollers 55 bearing against opposite cylinder end portions 21), so that the calibrations on scales 50 and 51 indicate for all the plate cylinders 20 exactly the same axial or transverse point at which paper to be printed will be contacted by all of the plate cylinders 20.
  • the entire plate 10 and clamping rails' 24 and 25 may be adjusted axially of the cylinder 20 (using adjusting screws 33) so that guide line 14 (extending register marks 13 to the edge of plate 10) coincides witha predetermined calibration on scales 50 and 51.
  • the axial positioning of scales 50 and 51 is determined, with respect to the end portions 21 of each plate cylinder 28 by the axial adjustment of rollers 55 with respect to scales 50 and 51, which adjustment is not affected by circumferential movement of either scales t) and 51 or clamping rails 24 and 25.
  • clamping rails 24 and 25 may be moved or adjusted either circumferentially or axially, in the accurate positioning of plate 10, without affecting at all the preadjustments or calibrations of angular scale 40 or axial scales 50 and 51.
  • register points 13, and guide lines 14 and 15 indicative thereof are placed on printing plate 10, provided only that they are all placed in a manner to designate completely the positioning of the various images 11, since the entire scales 40 and 55-51 are preset or calibrated for all the plate cylinders so that the alignment of guide lines such as 14 and 15, wherever they may be placed on the face of plate 10, with the predetermined calibrations at each printing cylinder results in the proper and precise and congruent positioning of register points 13 and printing images 11 properly on all plate cylinders so that the printing images 11 will strike the paper to be printed during rotation of the plate cylinders 20 at the precisely registered and predetermined spot to form the desired composite multi-color image to be printed.
  • the advantageous effects hereof, in the precise registering of printing images on printing plates are simply and readily achieved with the simultaneous adjustment of a large plurality of plates on plate cylinders, rather than having to produce or adjust each plate differently or individually with respect to the different characteristics or idiosyncrasies of each printing press or each plate cylinder, so that the printing plates may be mass produced readily in one particular location without special regard to the characteristics of the plate cylinder and in a uniform manner permitting the application and precise registering of the images on such mass produced plates on a wide variety of different plate cylinders on different printing presses in different locations.
  • Such ease of utilization is also substantially independently of or notwithstanding inevitable minor variations from plate to plate or from press to press which may occur.
  • the entire apparatus required for accomplishing all the advantages of this invention is of relatively simple and inexpensive construction and relatively light weight to be readily accommodated on plate cylinders of various kinds of rotary printing presses to which it might be desired to apply this invention.
  • Apparatus for the precise positioning of the printing images on a plurality of multi-color printing plates each secured to the surface of different plate cylinders in a multi-color rotary printing press which comprises in combination clamping means in each of said plate cylinders for securing a printing plate on the circumferential surface thereof, means for adjusting said clamping means both axially and circumferentially of said plate cylinders while holding said plates in clamped position for individually adjustng the axial and circumferential positioning of said printing plates and said printing images thereon, an axial and a circumferential calibrated scale on each said plate cylinder for indicating by the calibrations there on axial and angular positions on said cylinders, and means for individually and selectively adjusting said axial and circumferential scales on all said cylinders whereby predetermined calibrations on said scales indicate the same axial and angular positions on all said cylinders and independently of said means for adjusting said clamping means on said cylinders.
  • the combination which comprises clamping means for affixing said printing plate onto the circumferential surface of said plate cylinder, means for adjusting said clamping means axially and circumferentially of said cylinder while holding said plates in clamped position for altering and adjusting the positioning of said printing plate and said printing image thereon over said circumferential surface of said plate cylinder, a calibrated scale extending axially of said cylinder and adjacent an axial edge of said plate, means for adjusting said calibrated scale axially of said plate cylinder whereby the calibrations thereon indicate precise axial position on said cylinder, a circumferential calibrated scale extending around said circumferential surface of said plate cylinder at at least one end thereof, and means for adjusting said circumferential scale around said cylinder whereby the calibrations thereon indicate precise angular points therearound, said precise positioning of said printing plate and said image thereon being achieved
  • the combination which comprises clamping means for affixing said printing plate onto the circumferential surfaces of said plate cylinder, means for adjusting said clamping means axially and circumferentially of said cylinder while holding said plate in clamped position for altering and adjusting the positioning of said printing plate and said printing image thereon over said circumferential surface of said plate cylinder, a calibrated scale extending axially of said cylinder and adjacent an axial edge of said plate, means for adjusting said calibrated scale axially of said plate cylinder whereby the calibrations on said scale indicate precise axial positions on said cylnder and notwithstanding said axial and circumferential adjustments of said clamping means, said calibrated scale being carried by said clamping means for movement therewith circumferentially of said cylinder, and means providing limited free axial movement between said scale and said clamping means whereby said axial adjustment of said scale
  • the combination which comprises clamping means for afllxing said printing plate onto the circumferential surfaces of said plate cylinder, means for adjusting said clamping means axially and circumferentially of said cylinder while holding said plate in clamped position for altering and adjusting the positioning of said printing plate and said printing image thereon over said circumferential surface of said plate cylinder, a calibrated scale extending axially of said cylinder and adjacent an axial edge of said plate, means for adjusting said calibrated scale axially of said plate cylinder whereby the calibrations on said scale indicate precise axial positions on said cylinder and notwithstanding said axial and circumferential adjustments of said clamping means, and means effecting movement of said calibrated scale circumferentially of said cylinder without disrupting said precise axial adjustment of said scale.
  • Apparatus as recited in claim 3 which also includes a circumferential calibrated scale extending around the circumferential surface of said plate cylinder at at least one end thereof.
  • said means for circumferential movement of said scale include roller means in bearing engagement with a stationary portion of said cylinder for circumferential movement therealong and means for adjustably connecting said roller means to said calibrated scale.

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  • Rotary Presses (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
US183973A 1961-05-25 1962-03-30 Means for registering printing plates Expired - Lifetime US3154012A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM49143A DE1132933B (de) 1961-05-25 1961-05-25 Einrichtung zum passgerechten Ausrichten von Druckplatten auf den Formzylindern

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US3154012A true US3154012A (en) 1964-10-27

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CH (1) CH401099A (de)
DE (1) DE1132933B (de)
GB (1) GB959513A (de)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3335663A (en) * 1964-08-12 1967-08-15 Miehle Goss Dexter Inc Plate lockup for reversible plate cylinder
US3410211A (en) * 1964-10-26 1968-11-12 Winkler Fallert & Co Maschf Printing cylinder clamp for tensioning flexible printing plates
FR2195528A1 (de) * 1972-08-07 1974-03-08 Register System Gmbh
US3835778A (en) * 1973-09-14 1974-09-17 Register Syst Gmbh Device for attaching and adjusting flexible printing plates on printing cylinders
US3858512A (en) * 1973-03-22 1975-01-07 Roland Offsetmaschf Lock-up mechanism for flexible printing plates providing improved reference adjustment
US3884147A (en) * 1972-05-26 1975-05-20 Roland Offsetmaschf Device for fastening flexible printing plates
US3903796A (en) * 1973-03-01 1975-09-09 Heidelberger Druckmasch Ag Means for clamping on flexible printing plates
US3982743A (en) * 1974-12-09 1976-09-28 Deroo Sr Paul W Method of manufacturing books
US4010685A (en) * 1974-06-28 1977-03-08 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Printing plate clamping device
US4055120A (en) * 1975-04-14 1977-10-25 Maschinenfabrik Wifag Apparatus for adjusting a tensioning device in plate cylinders of rotary printing machines
US4090444A (en) * 1977-03-16 1978-05-23 Dayco Corporation Printing blanket holding bar
US4679502A (en) * 1978-07-20 1987-07-14 Heidelberger Druckmaschinen Ag Register system for in-register alignment or orientation of a flexible printing plate
US4759287A (en) * 1981-06-13 1988-07-26 Komori Printing Machinery Co., Ltd. Unit-to-unit register adjusting apparatus for use in a sheet-fed rotary printing press
US5097763A (en) * 1989-11-02 1992-03-24 Man Miller Druckmaschinen Gmbh Plate cylinder arrangement for a printing press
US5394614A (en) * 1992-08-13 1995-03-07 Man Roland Druckmaschinen Ag Apparatus for checking the in-register bearing of a printing plate on the plate cylinder of printing machines
US5481976A (en) * 1993-06-16 1996-01-09 Nissha Printing Co., Ltd. Printing roll and elastic plate installed on printing roll
US5685226A (en) * 1996-02-26 1997-11-11 Presstek, Inc. Adaptive clamping mechanism for printing plates
US5937760A (en) * 1996-03-19 1999-08-17 Mitsubishi Paper Mills, Limited Method and device for mounting a lithoplate using register pins
US6116160A (en) * 1998-03-13 2000-09-12 Iris Graphics, Inc. Printer drum

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795193A (en) * 1971-04-30 1974-03-05 Polygraph Leipzig Kom Veb Device for rapidly and precisely mounting flexible printing plates
DE102008054811B4 (de) * 2008-12-17 2023-10-19 Koenig & Bauer Ag Vorrichtung zum Erfassen der Lage einer Druckplatte
CN111038072B (zh) * 2019-12-25 2021-09-07 石家庄印钞有限公司 一种印版可准确快捷定位的凹印机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2095542A (en) * 1935-04-16 1937-10-12 Cottrell C B & Sons Co Means for registering printing plates
US2320239A (en) * 1940-08-03 1943-05-25 Hoe & Co R Plate clamp for securing and positioning printing plates on printing cylinders
US2707433A (en) * 1949-05-18 1955-05-03 Ditto Inc Method and means for line printing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE359911C (de) * 1922-09-28 Fallert & Co A G Zylinderflachformdruckmaschine
DE575769C (de) * 1931-08-20 1933-05-03 Albert Edward Shirlow Vorrichtung zum registerrechten Einstellen der fuer den Mehrfarbendruck erforderlichen Druckplatten auf einer Grundplatte
US2249245A (en) * 1940-10-31 1941-07-15 Hofrichter Allen Registering apparatus for printing forms
FR995511A (fr) * 1945-03-16 1951-12-04 Perfectionnements aux machines à reports
CH316777A (fr) * 1954-05-14 1956-10-31 Bobst Fils Sa J Procédé de montage d'un cliché cintré sur un support cylindrique et appareil pour la mise en oeuvre de ce procédé

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2095542A (en) * 1935-04-16 1937-10-12 Cottrell C B & Sons Co Means for registering printing plates
US2320239A (en) * 1940-08-03 1943-05-25 Hoe & Co R Plate clamp for securing and positioning printing plates on printing cylinders
US2707433A (en) * 1949-05-18 1955-05-03 Ditto Inc Method and means for line printing

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3335663A (en) * 1964-08-12 1967-08-15 Miehle Goss Dexter Inc Plate lockup for reversible plate cylinder
US3410211A (en) * 1964-10-26 1968-11-12 Winkler Fallert & Co Maschf Printing cylinder clamp for tensioning flexible printing plates
US3884147A (en) * 1972-05-26 1975-05-20 Roland Offsetmaschf Device for fastening flexible printing plates
FR2195528A1 (de) * 1972-08-07 1974-03-08 Register System Gmbh
US3903796A (en) * 1973-03-01 1975-09-09 Heidelberger Druckmasch Ag Means for clamping on flexible printing plates
US3858512A (en) * 1973-03-22 1975-01-07 Roland Offsetmaschf Lock-up mechanism for flexible printing plates providing improved reference adjustment
US3835778A (en) * 1973-09-14 1974-09-17 Register Syst Gmbh Device for attaching and adjusting flexible printing plates on printing cylinders
US4010685A (en) * 1974-06-28 1977-03-08 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Printing plate clamping device
US3982743A (en) * 1974-12-09 1976-09-28 Deroo Sr Paul W Method of manufacturing books
US4055120A (en) * 1975-04-14 1977-10-25 Maschinenfabrik Wifag Apparatus for adjusting a tensioning device in plate cylinders of rotary printing machines
US4090444A (en) * 1977-03-16 1978-05-23 Dayco Corporation Printing blanket holding bar
US4679502A (en) * 1978-07-20 1987-07-14 Heidelberger Druckmaschinen Ag Register system for in-register alignment or orientation of a flexible printing plate
US4759287A (en) * 1981-06-13 1988-07-26 Komori Printing Machinery Co., Ltd. Unit-to-unit register adjusting apparatus for use in a sheet-fed rotary printing press
US5097763A (en) * 1989-11-02 1992-03-24 Man Miller Druckmaschinen Gmbh Plate cylinder arrangement for a printing press
US5394614A (en) * 1992-08-13 1995-03-07 Man Roland Druckmaschinen Ag Apparatus for checking the in-register bearing of a printing plate on the plate cylinder of printing machines
US5481976A (en) * 1993-06-16 1996-01-09 Nissha Printing Co., Ltd. Printing roll and elastic plate installed on printing roll
US5685226A (en) * 1996-02-26 1997-11-11 Presstek, Inc. Adaptive clamping mechanism for printing plates
US5937760A (en) * 1996-03-19 1999-08-17 Mitsubishi Paper Mills, Limited Method and device for mounting a lithoplate using register pins
US6116160A (en) * 1998-03-13 2000-09-12 Iris Graphics, Inc. Printer drum

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Publication number Publication date
CH401099A (de) 1965-10-31
DE1132933B (de) 1962-07-12
GB959513A (en) 1964-06-03

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