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7640855 |
Clamping device for a printing plate
Disclosed is a clamping device ( 02 ) for fastening a plate ( 03 ) to the periphery of a cylinder ( 01 ). Said clamping device ( 02 ) comprises a first clamping element ( 04 ), a pivotally mounted...
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7641194 |
Drum for conveying a sheet
A drum for conveying a sheet has a cohesive sheet-guiding surface provided at little effort or cost and includes a drum body, a jacket forming a circumferential surface and a device for fixing the...
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7637209 |
Method of changing the mounting condition of a printing master on a printing master cylinder
A method according to the invention of changing the mounting condition, in particular of mounting or dismounting of a printing master on a printing master cylinder having a first receiving element...
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7617772 |
Balancing system for balancing a printing drum and method for balancing the printing drum
In a balancing system and a method for balancing a drum of a printing plate exposer, at least one mass element is provided which can be moved substantially in the circumferential direction of the...
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7581494 |
Cylinder for processing sheets of printing material and printing press having the cylinder
A cylinder for processing sheets of printing material includes a clamping channel having a central region and edge regions. A tool plate punches and/or scores and/or perforates the sheets. A...
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7568427 |
Ink transfer device for a printing press
An ink transfer device which can be clamped on a rubber covered cylinder in a printing press includes a rubber blanket for transferring ink from a printing forme to a printing material, the blanket...
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7565865 |
Plate inserting device
A plate inserting device includes a plate cylinder, roller, and rotation braking unit. The plate cylinder has a groove portion in its outer surface to extend in an axial direction. A plate is to be...
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7555983 |
Plate handling apparatus
A plate handling apparatus includes a loader, first and second air cylinders, and first and second detection units. The loader is supported to be movable substantially parallel to a paper convey...
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7523703 |
Printing group of a rotary printing press
A printing group of a rotary printing press includes at least one forme cylinder and at least one transfer cylinder. The forme cylinder has at least two printing forme end channels. These two...
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7490546 |
Image recording apparatus
To record images accurately regardless of rigidity and size of a recording medium, each rear end clamp has a clamp rubber element for engaging a variable margin of the recording medium mounted...
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7487725 |
Method and apparatus for securing a printing plate on a plate cylinder
A method and apparatus for securing a printing plate on a plate cylinder is disclosed. A tensioning bar is moved by an actuating device toward an entrance slot defined by an outer circumferential...
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7478592 |
Clamping device for clamping a flexible covering on a cylinder of a printing machine
A clamping device for clamping a flexible packing ( 2, 3 ) of a cylinder ( 1 ) of a printing press, which cylinder has an axial channel ( 6 ) on a jacket surface, the clamping device includes a...
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7464644 |
Devices and methods for raising and/or lowering a printing form
A printing form is either raised or is lowered by the use of a pressure device which includes a roller. The roller is arranged on a cross-beam in such a way that the roller can selectively be...
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7415926 |
Stencil printing machine with stencil clamping portion
A stencil clamping portion which clamps a tip end of a stencil sheet on an outer peripheral wall of a drum is provided, and the stencil sheet clamped by the stencil clamping portion is wound and...
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7412924 |
Printing blanket assembly for a blanket cylinder including filler material at blanket ends
A printing blanket assembly for a blanket cylinder of a rotary printing press includes a dimensionally stable support plate, and a printing blanket fastened to the outside of the support plate. A...
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7406917 |
Device for fastening a covering on a cylinder of a rotary press
A printing cylinder having an axis-parallel channel in the cylinder, the channel narrowing toward the surface to form a slot for receiving the ends of a covering; a clamping member arranged in the...
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7404357 |
Device for pressing on a flexible printing form when it is being pulled onto a form cylinder of an offset printing press
A device for pressing on a flexible printing form when it is being pulled onto a form cylinder of an offset printing press. The device makes it possible to use an offset cylinder which is not in...
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7403725 |
Imaging drum driving methods and apparatus providing automated setting of control parameters
In a drum based imaging system where it may be necessary to change the drum to accommodate different imaging media sizes there is a need to adapt the drum rotational drive system to control the new...
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7367265 |
Method and device for mounting dressings onto the cylinder of a printing press
A packing or dressing is mounted on a cylinder of a rotary printing press. A dressing suspension leg, situated at an end of the dressing extending in the production direction of rotation of the...
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7363858 |
Printing apparatus with plate feeding mechanism having transport rollers
A printing apparatus includes a printing plate feeder for feeding printing plates to a first plate cylinder. The printing plate feeder has a pair of transport rollers acting as a leveling roller...
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7350462 |
Gap filling member for blanket cylinder
A filling member for filling the concave portion of a blanket face which is generated along the opening portion of a groove of a blanket cylinder comprises a wedge-shaped limb portion and a head...
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7334522 |
Apparatus and method for reducing oscillations in a web-fed rotary press
An apparatus and method for reducing oscillations in a web-fed rotary press are disclosed. The apparatus includes a form cylinder of a web-fed rotary press, having at least one clamping device for...
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7328899 |
Device for guiding sheets
An apparatus for fixing a sheet on the surface of an electrically conductive cylinder of a printing machine for processing sheets, in particular, a sheet-fed offset printing machine. The apparatus...
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7322290 |
Method for changing at least one printing plate and a printing press comprising several plate cylinders
A printing press has several plate cylinders on which printing plates can be placed and from which they can be removed. Changing of these printing plates is accomplished by remote control through...
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7320281 |
Method of varying a drum profile of a vario drum and vario drum for implementing the method
A method of varying a drum profile of a vario drum for transporting printing material sheets, in which shell segments of the vario drum are pivoted inward and outward. Sheet supporting elements...
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7320282 |
Cylinders of a web-fed printing press with axially displaceable holding device
A cylinder of a printing unit of a web-fed printing press includes a cylinder channel which receives plate ends and includes plate end retaining devices. A remotely controllable actuating device or...
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7302889 |
Device for holding a dressing on a cylinder including a holding member and bow in the channel
At least one dressing, such as a printing forme, is secured to the surface of a cylinder of a rotary printing press by securement devices. These securement devices are arranged in an axially...
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7278352 |
Printing blanket assembly and method for producing said printing blanket assembly
The invention relates to a printing blanket assembly for a blanket cylinder of a rotary printing press. The printing blanket assembly comprises a dimensionally stable support plate ( 02, 18 ) with...
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7270873 |
Anti-marking coverings for printing presses
In a printing press and attached onto the transfer cylinders, an anti-marking system that uniformly supports the transport and the release of the wet printed sheet from one station to the next. The...
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7240616 |
Device and method for pressing a tympan to a cylinder of a printing machine by means of pressing elements
A dressing is pressed against a surface of a cylinder of a printing machine by the use of pressing elements. Several such dressings may be arranged next to each other in the axial direction of the...
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7237484 |
Device and method for pressing a dressing on a cylinder of a printing machine
A dressing is pressed onto a surface of a cylinder of a printing machine by the use of at least two pressing elements. These two pressing elements are separated from each other in a circumferential...
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7237483 |
Device for guiding a dressing on a cylinder of a printing press
A dressing is guided onto a cylinder of a printing machine. At least one roller element is used to accomplish this dressing guidance. A support, which includes spaced first and second ends, is...
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7234397 |
Devices for fixing at least one packing to a cylinder of a rotary printing press and printing group comprising said devices
Devices are used for fixing or attaching at least one packing or dressing to a cylinder. A retaining element is located in a channel in the cylinder and retains one end of the dressing or packing....
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7216587 |
Method of dispensing metal-backed printing blankets
A method of dispensing a metal-backed printing blanket onto a printing press cylinder in a controlled fashion is provided. A carton containing the rolled printing blanket may be provided, and a...
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7210406 |
Cylinder pair having a plurality of printing formes and blankets and offset groove openings
A cylinder of a printing unit of a rotary offset printing machine has a periphery and an axial length. The peripheral surface of the cylinder is divided, in the axial length, into at least three...
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7189443 |
Self-levelling under-packing for printing presses
A self-levelling under-packing for printing presses, in particular offset presses, includes at least one polyester-based layer and at least one polyurethane elastomer layer joined inseparably...
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7165492 |
Method and apparatus to clamp and release flexible plates onto an imaging cylinder
A clamping device, a cylinder including a clamping device, and a method for clamping a plate onto the outer surface of the cylinder. The clamping device includes a base body extending in the axial...
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7140299 |
Printing press having plate supply and discharge apparatus including shiftable guide plate and guide
There is provided a printing press that can guide a printing plate, which is held in clamped relationship with the clamping gripper, so as to be mounted on the plate cylinder with accuracy, while...
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7134394 |
Printing cylinder with clamping channel and rotatable spindle clamping mechanism
The printing cylinder such as a rubber blanket cylinder of a web fed offset printing machine is provided. The printing cylinder includes a rotatable clamping mechanism in a clamping channel. A side...
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7124686 |
Apparatus for clamping and holding a printing plate on an exposure drum
In the field of electronic reproduction technology, an apparatus for clamping and holding a printing plate on the surface of an exposure drum in a printing plate exposer includes a clamping...
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7121202 |
Imaging apparatus and imaging method to increase efficiency of mounting/demounting of a recording material to/from a recording drum
A plate is consecutively mounted on the outer peripheral surface of a recording drum under pressure from a squeegee roller, with its leading edge clamped by leading edge clamps. Guide members for...
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RE39305 |
Anti-static, anti-smearing pre-stretched and pressed flat, precision-cut striped flexible coverings for transfer cylinders
Freshly printed sheets are transferred from one printing unit to another by transfer cylinders each having an ink repellent, electrically conductive, striped flexible jacket covering that is...
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7107906 |
Device for feeding or removing a printing plate including a pivotal plate storage device having a linearly movable plate support
A device for feeding a plate to and/or removing a plate from a printing press includes a plate storage device for holding a new and/or used plate. The plate storage device has a linearly movable...
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7100502 |
Device for fixing a cover on a cylinder of a printing unit
To provide a device for fixing a covering to a printing-unit cylinder in which, while implementing a narrow gap in the cylinder circumferential surface, the legs of the covering can be tensioned...
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7100505 |
Printing press having plate supply device with axially movable sucker
A printing press can securely supply a printing plate while bringing a printing plate into alignment with a plate cylinder in an axial direction of the plate cylinder, as well as omitting the...
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7096788 |
Device for mounting a printing plate on a plate cylinder for a rotary printing press
A plate cylinder adapted for a rotary printing press has a cylinder jacket and a recess followed by a clamping channel which extend at least approximately parallel to the rotational axis of the...
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7086333 |
Printing plate material, process of folding the same, and printing process
Disclosed are a printing plate material capable of being folded by heating, a printing process employing the printing plate material and a process of folding the printing plate material, the...
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7073438 |
Image forming apparatus including rotary drum and detachably mounted chuck
A fixing structure comprises a rotary drum having an outer peripheral surface, around which a printing plate is wound, and an inner peripheral surface portion, the drum including through-slots...
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7069855 |
Printing press having plate discharge device
A printing press which can limit increase in the entire size of a plate discharge device while moving a printing plate in a plate discharge direction by a sufficient distance is provided. The plate...
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6997109 |
Plate removing apparatus having two cover members
A plate removing apparatus includes a plate cylinder, cover, loader, cover members, and plate removal port. The plate cylinder is rotatably supported between a pair of frames opposing each other...
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