US3926118A - Rotary printing press impression cylinder having clamping and sheet gripping devices - Google Patents

Rotary printing press impression cylinder having clamping and sheet gripping devices Download PDF

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Publication number
US3926118A
US3926118A US497723A US49772374A US3926118A US 3926118 A US3926118 A US 3926118A US 497723 A US497723 A US 497723A US 49772374 A US49772374 A US 49772374A US 3926118 A US3926118 A US 3926118A
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US
United States
Prior art keywords
covering layer
impression cylinder
bar
groove
perforation
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 - Lifetime
Application number
US497723A
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English (en)
Inventor
Friedrich Preuss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roland Offsetmaschinenfabrik Faber and Schleicher AG
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Roland Offsetmaschinenfabrik Faber and Schleicher AG
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Filing date
Publication date
Priority claimed from DE19732341326 external-priority patent/DE2341326C3/de
Application filed by Roland Offsetmaschinenfabrik Faber and Schleicher AG filed Critical Roland Offsetmaschinenfabrik Faber and Schleicher AG
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Publication of US3926118A publication Critical patent/US3926118A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F30/00—Devices for attaching coverings or make-ready devices; Guiding devices for coverings
    • B41F30/04—Devices for attaching coverings or make-ready devices; Guiding devices for coverings attaching to transfer cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41G—APPARATUS FOR BRONZE PRINTING, LINE PRINTING, OR FOR BORDERING OR EDGING SHEETS OR LIKE ARTICLES; AUXILIARY FOR PERFORATING IN CONJUNCTION WITH PRINTING
    • B41G7/00—Auxiliary perforating apparatus associated with printing devices

Definitions

  • ABSTRACT A printing press of the lithographic type having a pair of blanket cylinders and a cooperating impression cylinder. At least one of the blanket cylinders has, adheringly mounted thereon, a perforation strip presenting a line of regularly spaced perforation projections extending to a constant shallow height from the surface of the blanket.
  • the impression cylinder is provided with a resilient, perforation-inducing covering layer for cooperating with the projections so that when the cylinders rotate together a sheet held by the impression cylinder is penetrated with a line of perforations.
  • the two blanket cylinders cooperating with the impression cylinder each have perforation strips, extending respectively at right angles to one another, and which successively engage the sheet on the impression cylinder, so that intersecting lines of perforations are produced in the sheet.
  • the impression cylinder is formed with a longitudinal gap or groove having a well defined edge and a recess extending continuously thereunder.
  • the resilient covering layer has a mounting bar at one end which is clamped in the recess, with the covering layer being drawn over the edge of the groove in a tight bend.
  • a gripper pad bar Mounted at the edge of the groove, adjacent the bend, is a gripper pad bar having a cooperating cyclically operated set of grippers for gripping the leading edges of successive paper sheets.
  • the set of grippers and the gripper pad bar are both mounted in such a way as to permit temporary retraction away from the edge of the groove thereby to provide a radial clearance path for easy removal of the mounting bar and its associated covering layer when the mounting bar is unclamped. This permits rapid substitution of a conventional non-resilient impression blanket upon detatchment of the perforation strips to reestablish the normal printing function of the blanket cylinders.
  • It is a related object of the invention to provide a novel construction of impression cylinder which includes provision for clamping a covering layer, having a mounting bar, in place and which in addition includes a gripper pad bar and set of cooperating cyclically operated grippers for gripping the leading edges of successive sheets of paper, with novel provision for retracting both the grippers and gripper pad bar well away from the covering layer and mounting bar to provide clearance for prompt removal of the mounting bar and covering layer from the cylinder, thereby to permit rapid substitution of a covering layer having different characteristics for use when the perforation strips are removed from the blanket cylinder for restoration of the printing function.
  • FIG. 1 is a schematic view multi-color sheet fed rotary printing press, the last printing unit of which is equipped for making of perforations.
  • FIG. 2 shows the blanket cylinders and cooperating impression cylinder of the last printing unit.
  • FIG. 3 is a developed view showing the blanket on the upper blanket cylinder of FIG. 2.
  • FIG. 4 is a developed view showing the blanket on the lower blanket cylinder of FIG. 2.
  • FIG. 4a shows, in face view, a fragment of the perforation strip used in FIGS. 3 and 4.
  • FIG. 4b is an enlarged section looking along the line 4b-4b in FIG. 4a.
  • FIG. 4c is an enlarged cross section looking along the line 4c-4c in FIG. 4a.
  • FIG. 5 is a fragmentary transverse section taken through the impression cylinder and looking along the line 55 in FIG. 6.
  • FIG. 6 is a fragmentary face view corresponding to FIG. 5.
  • FIG. 7 is an end view of the cam follower mechanism looking along the line 7-7 in FIG. 6.
  • FIG. 8 is a fragmentary view looking along the line 8--8 in FIG. 7.
  • FIG. 1 of the drawings there is shown a typical printing press 10 havingthree printing units 11, 12, 13 of the five-cylinder type having interconnecting conveyors 14, 15, 16 and terminating in a delivery mechanism 17, the conveyors and delivery mechanism being conventional and not part of the present invention.
  • the printing unit 13 includes an impression cylinder 20 (FIG. 2) having cooperating blanket cylinders 21, 22 which, in turn, have respective plate cylinders 23, 24.
  • the means for inking and dampening the plates on the plate cylinders are not shown and will be understood to be conventional.
  • the resilient blankets on the blanket cylinders 21, 22 are indicated at 31, 32, the blankets being held in place by conventional mounting and tensioning means 33, 34.
  • the blankets are shown in developed form, that is, laid out flat, in FIGS. 3 and 4.
  • the third press unit 13 are quickly and easily adapted for perforating the sheet, instead of performing a printing function, using perforation strips secured to the blankets 31, 32 of the blanket cylinders and with the normal, relatively hard, covering of the impression cylinder being replaced by a special resilient, perforation-inducing covering for cooperating with the perforating projections on the blankets and with the sheet being acted upon successively by the latter.
  • the blanket 31 of the blanket cylinder 21, and which is shown in FIG. 3, has cemented to it a set of perforation strips 40 arranged in parallel relation.
  • the blanket 32 on cylinder 22, shown in FIG. 4 has a set of perforation strips 41 arranged at right angles to the first set; for example, where the perforation strips are peripheral on blanket 31, they are axially arranged on blanket 32.
  • the strip includes a metal member 43 of hard metal but of light flexible construction, in inverted T shape, having a mounting portion 44 and series of spaced, upwardly extending projections 45 o shallow height.
  • the length and spacing of the individual projections 45 depends upon the desired length and spacing of the perforations.
  • the impression cylinder 20 instead of having the usual, relatively stiff covering, or impression blanket, utilized for back up purposes in lithograph printing, and which may be typically made of copper or hard rubber, the impression cylinder is provided with a resilient perforation-inducing covering 50 which may be formed of rubber or a resilient plastic having rubber-like characteristics and of such durometer rating as to accommodatingly receive the tips of the perforation projections 45 on the blanket cylinders thereby to cause the projections to cleanly break through the thickness of the supported sheet of paper S to form crisp and well defined lines of perforation or weakening.
  • the perforation-inducing layer 50 is provided at one end with a longitudinally-extending mounting, or reinforcing, bar 51 for purposes of anchoring the covering 50 tautly in place.
  • a groove is formed longitudinally in the surface of the cylinder for accommodating spaced clamping devices for clamping the reinforcing bar in place and for accommodating a gripper pad bar as well as a set of cooperating grippers for holding a sheet on the surface of the cylinder and with provision for simultaneous retraction, to a clearance position, of both the grippers and the gripper pad bar so that, upon release of the clamping devices, the reinforcing bar and its associated covering layer may be conveniently and quickly removed, and a conventional impression blanket substituted, so that, upon removal of the perforation strips, normal printing may be resumed.
  • the three types of mechanism, and the supporting means therefor, are mounted in a longitudinally extending groove 60 formed in the impression cylinder having a well defined edge 61 and a floor 62. Extending longitudinally under the edge, and at floor level, is a continuous corner recess 63 which receives the mounting bar 51.
  • the illustrated device which may be referred to as a clamping dog is of L cross section having a first, or clamping, leg 71 and a second, or supporting, leg 72, with the end of the clamping leg 71 projecting over the edge of the mounting bar 51 as shown in FIG. 5.
  • the clamping leg 71 is penetrated by a clamping screw 73, the lower end of which is threaded into the cylinder body.
  • a leaf spring 74 for raising the clamping member away from the reinforcing bar when the screw is loosened, is a leaf spring 74, of C shape, nested against the floor 62.
  • the intervening space may be utilized for installation of sheet gripping mechanism, to be discussed.
  • the covering layer 50 engages a tensioning bar 75 having a clamping strip 76 held by screws 77. Tension is applied in non-retrograde fashion by a worm wheel 78 rotated by a worm 79 (FIG. 6).
  • a gripper pad bar 80 adjacent the wall-defined edge 61 of the groove, and the resilient layer 50 which is tightly bent over such edge, a gripper pad bar 80.
  • the bar is supported upon a series of mounts 81, only one of which is shown in FIG. 6.
  • Such mount is of L shape having a radially projecting portion 82, which carries the bar at its outer end, and projection 83 extending at right angles thereto.
  • a pivot pin 84 is provided near the junction of the portions 82, 8.3, the ends of the pin being received in alined apertures in the lateral portions of a mounting block 85 which is secured to the floor of the groove by means of screws 86.
  • the projection 83 of the mount is threadedly engaged by an actuating screw 86. Turning the screw in a clockwise direction causes the tip of the screw to react against the bottom of the groove, thus rotating the mount 81 clockwise to bring the gripper pad bar 80 into an operating position, illustrated in FIG. 5, closely adjacent the bend in the covering layer 50.
  • a limit stop in the form of a set screw 87 is provided in a bracket 88.
  • the separate actuating screws 86 in each of the mounts 81 may be turned until tightening occurs which indicates that the projections 83 have bottomed against the respective set screws 87.
  • a gripper assembly For the purpose of cooperating with the gripper pad bar 80, a gripper assembly is provided having a gripper shaft 90 mounting individual grippers of which four are indicated at 91-94.
  • the gripper shaft is journaled in bores 95 formed in end members 96, only one of which is shown (FIG. 6).
  • a rocking mechanism is provided at the end of the shaft in the form of a two-part cam follower device including a follower lever 101 and a cooperating adjusting arm 102.
  • the follower lever carries, at its tip, a follower roller 103 which rides against a generally circular cam surface 104 on the associated stationary frame structure (FIG. 7).
  • the cam surface is so formed as to rock the cam follower lever 101, and hence the gripper shaft, on a cyclical basis for opening and closing the grippers.
  • the followerlever 101 is releaseably clamped to the shaft 90 by means of a clamp 105 while the adjusting arm 102 is permanently pinned to the shaft by means of a pin 106.
  • Threaded into the arm is an adjusting screw 107 having a tip which engages the end 108 of the lever 101.
  • a spring 109 is secured by a pin 110 to the adjusting arm 102, the other end of the spring being anchored to the cylinder by means not shown.
  • the cam surface 104 is faced to work against the spring and to provide positive closure of the grippers against the leading edge of the sheet S.
  • means are provided for retracting both the gripper pad bar 80 and the grippers 91-94 to a clearance position to provide radial access for the reinforcing bar 51 at the end of the cover 50.
  • this is accomplished by releasing the clamp 105 which secures the lever 101 to shaft 90.
  • the gripper adjusting screw 107 is unscrewed with respect to the arm 102 so that the arm may rock with respect to the lever 101 under the influence of the spring 109, thereby to rotate the shaft 90 in a direction ,to well clear of the gripperpad bar 80.
  • the adjusting screw 107 forming a part of the cam follower assembly is screwed inwardly with the reaction against lever 101 causing gripper shaft 90 to rotate against the force of the spring 109, thereby advancing all of the grippers 91-94 into normal operating position.
  • Such position can be accurately reestablished by calibrating the screw 107 as indicated in FIG. 8 and by providing an arm 107a on the screw which cooperates with a fixed, but removable stop 107b.
  • the clamp 105 is then tightened to hold the lever 101 in place on the shaft.
  • the device satisfies the objects of the invention.
  • intersecting perforations of high quality can be readily achieved.
  • Mounting the strips on the respective blanket cylinders is a relatively easy matter since the blanket cylinders are, in most press designs, readily accessible.
  • the impression cylinder is usually difficult of access.
  • the present invention provides for easy and quick substitution of a resilient perforation-inducing. blanket for the relatively non-yielding surface used inthe printing mode
  • the turning of a few screws between loose andtight positions is virtually all that is required to substitute a covering layer for perforation purposes
  • the invention disclosed andclaimed herein has general application to multi-color printing presses of the lithographic type both with respect to new presses and, by modification and substitution of impression cylinder, presses which are already in the field.
  • the invention is primarily concerned with establishing a line, or lines, of perforations in a printed sheet, the invention is equally applicable to forming grooves in a sheet, and in particular intersecting grooves. This may be accomplished by making the perforation projections 45 (see especially FIG. 4b) continuous and of slightly less height than required for perforation; consequently the term perforation projections should be understood to include this possibility.
  • the invention contemplates interchanged substitution of the regular impression blanket by a resilient covering layer, the invention is not limited thereto and the regular relatively non-resilient impression blanket may if desired be permanently mounted on the impression cylinder. In such event the perforationinducing layer 50 may simply be superimposed, and held in place by its mounting bar 51 when the perforation function is employed, the blanket cylinders under such circumstances being approximately backed off the amount necessary to accommodate the added thickness.
  • rubber as used herein denotes any tough, resilient, rubber-like material.
  • the perforating strip in accomplishing perforation, is mounted upon a first resilient layer, namely, the rubber blanket on the blanket cylinder with the perforating projections thereof working against a second resilient layer, namely, the covering layer on the impression cylinder.
  • a first resilient layer namely, the rubber blanket on the blanket cylinder
  • the perforating projections thereof working against a second resilient layer, namely, the covering layer on the impression cylinder.
  • an impression cylinder for a lithograph printing press comprising a body having a gap in the form of a longitudinally extending groove having a well-defined longitudinal edge and a recess extending continuously thereunder, a covering layer having a rigid mounting bar at one end, clamping means for clamping the mounting bar in the recess, means recessed in the cylinder for tensioning the opposite end of the covering layer so that the layer is drawn into a tight bend over the edge of the groove and thence over the surface of the cylinder, a gripper pad bar extending continuously along the edge of the groove, spaced mounts seated in the groove for mounting the gripper pad bar and for releasably holding it in a normal position in which it is snugly adjacent the bend in the covering layer, each mount being of L shape having a radial portion supportively engaging the gripper pad bar and having a projecting arm portion at right angles thereto with a pivot at the bend of the L, a gripper shaft in the groove having a set of grippers cooperating the

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  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
US497723A 1973-08-16 1974-08-15 Rotary printing press impression cylinder having clamping and sheet gripping devices Expired - Lifetime US3926118A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732341326 DE2341326C3 (de) 1973-08-16 Mehrfarben-Bogenrotationsmaschine mit Perforiereinrichtung

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US (1) US3926118A (enrdf_load_stackoverflow)
FR (1) FR2240817B1 (enrdf_load_stackoverflow)
GB (1) GB1435245A (enrdf_load_stackoverflow)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404905A (en) * 1981-05-06 1983-09-20 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Verso printing unit in the delivery of a sheet-fed rotary printing press
US4421026A (en) * 1981-04-15 1983-12-20 Cymaticolor Corporation Process color offset printing duplicator
US4480545A (en) * 1982-06-08 1984-11-06 Ryobi Ltd. Offset press having two printing units with alternate path delivery cylinders
US4489653A (en) * 1981-07-13 1984-12-25 M.A.N.-Roland Druckmashinen Aktiengesellschaft Clamping device for clamping printing plates on the plate cylinder of a printing machine
US4605298A (en) * 1985-04-29 1986-08-12 Eastman Kodak Company Electrographic transfer roller drive mechanism
US4697512A (en) * 1984-12-15 1987-10-06 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Sheet gripper system for a printing press
US4718342A (en) * 1985-08-19 1988-01-12 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Resilient sheet gripper for a sheet-fed rotary printing press
US5186106A (en) * 1990-11-23 1993-02-16 Kba-Planeta Ag Arrangement on transfer drum for in-registry sheet transfer
US5231927A (en) * 1991-04-25 1993-08-03 Heidelberger Druckmaschinen Ag Electric or electronic sheet control device for sheet-transferring cylinders of printing machines
US5396842A (en) * 1993-09-03 1995-03-14 Halm Industries Co., Inc. Printing press including improved gripper assembly
US5562036A (en) * 1994-07-14 1996-10-08 Koenig & Bauer Aktiengesellschaft Device for securing packings in printing cylinders
US5623874A (en) * 1994-04-14 1997-04-29 Ruprecht Handels Ag Counter-pressure means for effectuating perforations and/or punchings at offset sheet printing machines
US5851547A (en) * 1993-12-27 1998-12-22 Dow Corning Asia, Ltd. Controlled release drug formulation of open end cylindrical rod form
US5918542A (en) * 1996-10-28 1999-07-06 Hans E. Ruprecht Holding Ag Device for perforating die-cutting, creasing or for envelope printing or spot varnishing with printing machines
US6267053B1 (en) * 1998-11-16 2001-07-31 Environmental Specialties Inc. Perf/score shell for presses
US6308620B1 (en) * 1997-05-09 2001-10-30 Heidelberger Druckmaschinen Printing press having a multiply-positioned and multi-functioned sheet guiding cylinder
US6651539B1 (en) * 1998-04-03 2003-11-25 Friedrich Eicher Perforating, grooving or cutting device for a multicolor sheet-fed rotary press
US6684774B2 (en) 1997-05-09 2004-02-03 Heidelberger Druckmaschinen Ag Sheet-fed rotary printing press
US20080093790A1 (en) * 2006-10-23 2008-04-24 Heidelberger Druckmaschinen Ag Drum for Conveying a Sheet
US20080276815A1 (en) * 2007-05-11 2008-11-13 Heidelberger Druckmaschinen Ag Transfer Drum Between Printing Units of a Sheet-fed Printing Press
CN102161264A (zh) * 2011-03-22 2011-08-24 北京贞亨利民印刷机械股份有限公司 喷码印刷机
CN108472824A (zh) * 2015-11-23 2018-08-31 柯尼格及包尔公开股份有限公司 用于操作基材的装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4969655B2 (ja) * 2006-11-07 2012-07-04 ツィトー システム ゲーエムベーハー 輪転印刷機で穴あけ、溝切りまたは打抜きする装置

Citations (13)

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Publication number Priority date Publication date Assignee Title
US1545791A (en) * 1925-03-28 1925-07-14 Owen Malcolm Printing cylinder
US1579182A (en) * 1922-06-01 1926-03-30 Forbes Lithograph Mfg Co Lithographing press
US1579180A (en) * 1922-06-01 1926-03-30 Forbes Lithograph Mfg Co Press
US1582390A (en) * 1923-01-18 1926-04-27 Evans Arthur Burroughes Printing machine
US1686065A (en) * 1927-02-28 1928-10-02 Miehle Printing Press & Mfg Printing-press blanket clamp
US2089225A (en) * 1933-03-11 1937-08-10 Hearst Entpr Inc Process of printing and scoring and product
US2118238A (en) * 1933-10-02 1938-05-24 Goss Printing Press Co Ltd Multicolor rotary proof press
US2599776A (en) * 1947-05-24 1952-06-10 Miehle Printing Press & Mfg Sheet gripper structure and setting means therefor
US3302490A (en) * 1963-08-28 1967-02-07 Deritend Eng Co Method of making an arcuate forme for cutting and creasing sheet material
US3384014A (en) * 1966-12-09 1968-05-21 Berg Milton Sheet securing means with sheet inserted and removed axially of cylinder
US3430560A (en) * 1965-07-19 1969-03-04 Cowan Pressroom Products Inc Cover assembly for impression cylinder of printing equipment
US3431847A (en) * 1967-03-31 1969-03-11 George B Smith Perforating printing improvement
US3587382A (en) * 1968-10-08 1971-06-28 Harry S Boyd Die for cutting paper

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1579182A (en) * 1922-06-01 1926-03-30 Forbes Lithograph Mfg Co Lithographing press
US1579180A (en) * 1922-06-01 1926-03-30 Forbes Lithograph Mfg Co Press
US1582390A (en) * 1923-01-18 1926-04-27 Evans Arthur Burroughes Printing machine
US1545791A (en) * 1925-03-28 1925-07-14 Owen Malcolm Printing cylinder
US1686065A (en) * 1927-02-28 1928-10-02 Miehle Printing Press & Mfg Printing-press blanket clamp
US2089225A (en) * 1933-03-11 1937-08-10 Hearst Entpr Inc Process of printing and scoring and product
US2118238A (en) * 1933-10-02 1938-05-24 Goss Printing Press Co Ltd Multicolor rotary proof press
US2599776A (en) * 1947-05-24 1952-06-10 Miehle Printing Press & Mfg Sheet gripper structure and setting means therefor
US3302490A (en) * 1963-08-28 1967-02-07 Deritend Eng Co Method of making an arcuate forme for cutting and creasing sheet material
US3430560A (en) * 1965-07-19 1969-03-04 Cowan Pressroom Products Inc Cover assembly for impression cylinder of printing equipment
US3384014A (en) * 1966-12-09 1968-05-21 Berg Milton Sheet securing means with sheet inserted and removed axially of cylinder
US3431847A (en) * 1967-03-31 1969-03-11 George B Smith Perforating printing improvement
US3587382A (en) * 1968-10-08 1971-06-28 Harry S Boyd Die for cutting paper

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4421026A (en) * 1981-04-15 1983-12-20 Cymaticolor Corporation Process color offset printing duplicator
US4404905A (en) * 1981-05-06 1983-09-20 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Verso printing unit in the delivery of a sheet-fed rotary printing press
US4489653A (en) * 1981-07-13 1984-12-25 M.A.N.-Roland Druckmashinen Aktiengesellschaft Clamping device for clamping printing plates on the plate cylinder of a printing machine
US4480545A (en) * 1982-06-08 1984-11-06 Ryobi Ltd. Offset press having two printing units with alternate path delivery cylinders
US4697512A (en) * 1984-12-15 1987-10-06 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Sheet gripper system for a printing press
US4605298A (en) * 1985-04-29 1986-08-12 Eastman Kodak Company Electrographic transfer roller drive mechanism
US4718342A (en) * 1985-08-19 1988-01-12 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Resilient sheet gripper for a sheet-fed rotary printing press
US5186106A (en) * 1990-11-23 1993-02-16 Kba-Planeta Ag Arrangement on transfer drum for in-registry sheet transfer
US5231927A (en) * 1991-04-25 1993-08-03 Heidelberger Druckmaschinen Ag Electric or electronic sheet control device for sheet-transferring cylinders of printing machines
US5396842A (en) * 1993-09-03 1995-03-14 Halm Industries Co., Inc. Printing press including improved gripper assembly
US5851547A (en) * 1993-12-27 1998-12-22 Dow Corning Asia, Ltd. Controlled release drug formulation of open end cylindrical rod form
US5623874A (en) * 1994-04-14 1997-04-29 Ruprecht Handels Ag Counter-pressure means for effectuating perforations and/or punchings at offset sheet printing machines
US5562036A (en) * 1994-07-14 1996-10-08 Koenig & Bauer Aktiengesellschaft Device for securing packings in printing cylinders
US5918542A (en) * 1996-10-28 1999-07-06 Hans E. Ruprecht Holding Ag Device for perforating die-cutting, creasing or for envelope printing or spot varnishing with printing machines
US6684774B2 (en) 1997-05-09 2004-02-03 Heidelberger Druckmaschinen Ag Sheet-fed rotary printing press
US6308620B1 (en) * 1997-05-09 2001-10-30 Heidelberger Druckmaschinen Printing press having a multiply-positioned and multi-functioned sheet guiding cylinder
US6651539B1 (en) * 1998-04-03 2003-11-25 Friedrich Eicher Perforating, grooving or cutting device for a multicolor sheet-fed rotary press
US6267053B1 (en) * 1998-11-16 2001-07-31 Environmental Specialties Inc. Perf/score shell for presses
US20080093790A1 (en) * 2006-10-23 2008-04-24 Heidelberger Druckmaschinen Ag Drum for Conveying a Sheet
US7641194B2 (en) * 2006-10-23 2010-01-05 Heidelberger Druckmaschinen Ag Drum for conveying a sheet
US20080276815A1 (en) * 2007-05-11 2008-11-13 Heidelberger Druckmaschinen Ag Transfer Drum Between Printing Units of a Sheet-fed Printing Press
US8225715B2 (en) * 2007-05-11 2012-07-24 Heidelberger Druckmaschinen Ag Transfer drum between printing units of a sheet-fed printing press
DE102008019935B4 (de) * 2007-05-11 2020-01-30 Heidelberger Druckmaschinen Ag Übertragungstrommel zwischen Druckwerken einer Bogendruckmaschine
CN102161264A (zh) * 2011-03-22 2011-08-24 北京贞亨利民印刷机械股份有限公司 喷码印刷机
CN108472824A (zh) * 2015-11-23 2018-08-31 柯尼格及包尔公开股份有限公司 用于操作基材的装置

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Publication number Publication date
DE2341326A1 (de) 1975-03-06
DE2341326B2 (de) 1976-12-09
GB1435245A (en) 1976-05-12
FR2240817B1 (enrdf_load_stackoverflow) 1981-04-17
FR2240817A1 (enrdf_load_stackoverflow) 1975-03-14

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