161 |
DEVICES AND METHODS FOR RAISING AND/OR LOWERING A PRINTING FORM |
PCT/EP2004051188 |
2004-06-22 |
WO2005007405B1 |
2005-08-18 |
BERNARD ANDREAS EWALD HEINRICH; KEIL LARS; LIEBLER MANFRED HERRMANN |
The invention relates to devices and methods for raising and/or lowering a lift by means of a pressure device comprising a roller. The roller is arranged on a cross-beam in such a manner that the roller can be selectively placed on and/or taken a cylinder or a lift arranged on the cylinder by a drive. The invention is characterised in that the pressure device or the cross-beam supporting the roller can be displaced together in such a manner that the distance of the roller from the cylinder can be selectively increased. |
162 |
IMPROVED PRINTING MACHINES |
PCT/FR0302427 |
2003-07-31 |
WO2004014653A3 |
2004-05-13 |
SIMON PIERRE; SIX BERNARD |
The invention relates to a device for fixing a printing sleeve (3), in particular a printing form or a blanket drum, to a drive cylindrical shaft (1) on which a deformable cover (2) is arranged between the printing sleeve (3) and the shaft (1). The surface of the shaft (1) is grooved by a series of cavities (7) separated by bearing surfaces (12) which the cover (2) is rested on. Said device also comprises a means for providing with the radial deformation of the deformable areas of the cover (2) by overpressure produced on the external face thereof or under-pressure on the internal face thereof. The device is characterised in that the shaft (1) and the printing sleeve (3) are provided with angular indexing means (25). |
163 |
PRINTING UNIT AND A ROTARY ROLLER PRINTING PRESS |
PCT/DE0203692 |
2002-09-30 |
WO03031180A3 |
2003-06-05 |
MASUCH BERND KURT; SCHAEFER KARL ROBERT; WESCHENFELDER KURT JOHANNES |
The invention relates to a printing unit, comprising at least two pairs of two cylinders each, namely a transfer cylinder and an associated forming cylinder, whereby the transfer and forming cylinders are each embodied with a width sufficient for printing six newspaper pages, arranged axially next to each other and the transfer cylinder co-operates with a printing cylinder embodied as a satellite cylinder to form a printing head in a print-in-place arrangement. |
164 |
DEVICES FOR PRESSING A BLANKET ON A CYLINDER |
PCT/DE2001/001842 |
2001-05-16 |
WO01087614A1 |
2001-11-22 |
|
When blankets (02) are mounted or dismounted on cylinders (01), rollers are fitted to said cylinders to ensure that winding and unwinding occurs in a homogeneous manner. One requirement is that the adjustment pressure should be homogeneous at low control and operating costs. According to the invention, several rollers (03) which can move independently from each other can be fitted to the cylinder simultaneously with the aid of a single means of adjustment (04) in order to create said device for pressing blankets onto cylinders. In a particular embodiment, first and second rollers for mounting or dismounting the blanket can be actuated. |
165 |
FLEXIBLE IMAGE TRANSFER BLANKET HAVING NON-EXTENSIBLE BACKING |
PCT/US2001/008280 |
2001-03-15 |
WO01070512A1 |
2001-09-27 |
|
A flexible image transfer blanket (15) is provided which has a non-extensible backing which is easy to mount onto conventional blanket cylinders, which requires no packing (but which can be used with packing), which does not need to be retensioned during operation, and which prints to the gap better than conventional fabric-reinforced blankets. The image transfer blanket is adapted to be mounted onto a blanket cylinder (12) and includes first and second ends (22), with at least one of the first and second ends being adapted to be inserted into an axially-extending gap (16) in the blanket cylinder. The blanket includes an image transfer surface layer (38), at least one woven fabric ply (36), and a nonextensible base layer (20). The at least one woven fabric ply includes both warp and weft fibers, with the weft fibers being oriented so that when the blanket is mounted on the blanket cylinder the weft fibers extend circumferentially about the blanket cylinder. |
166 |
SLEEVE COMPRISING MEANS FOR FIXING PRINTING PLATES AND METHOD FOR MAKING SAME |
PCT/FR2000/003611 |
2000-12-20 |
WO01045951A1 |
2001-06-28 |
|
The invention concerns an endless sleeve comprising at least a substantially cylindrical support and whereof the outer surface is coated with at least a layer of bonding and permanently adhesive material. Said sleeve is designed to be mounted on a support cylinder, while its outer surface enables printing plates to be removably fixed by adhesion. The invention is applicable for flexographic printing. |
167 |
INK-FOULING PREVENTING SHEET |
PCT/JP1997000953 |
1997-03-24 |
WO1997035722A1 |
1997-10-02 |
REFLITE KABUSHIKI KAISHA; SHINODA & CO., LTD. |
An ink-fouling preventing sheet adapted to be attached to a feed cylinder supporting and transferring printed paper and a paper discharge cylinder in an offset press. This ink-fouling preventing sheet is formed by providing an adhesive layer (4) on a flexible sheet base member (3), and burying a plurality of small balls (5) partially in this adhesive layer (4). The exposed projecting portions of these small balls (5) are subjected to a primer treatment to form a primer layer (7) thereon, and a resin cured layer (6) using a silicone modified urethane resin is formed on this primer layer (7) so that the shape of the projecting portions of the small balls remains on the surface of the resin cured layer (6). |
168 |
Roller assembly for heat transfer printing system or hot stamp foil application system |
US16178245 |
2018-11-01 |
US10940684B2 |
2021-03-09 |
Joseph Michael Fisher; Timothy Spencer Burt; Brenda Lee Denny |
A roller assembly for a heat transfer printing system or hot foil transfer system is provided. The roller assembly includes a cylindrical roller core that extends around a center axis. The roller core includes an exterior surface and an opposite interior surface. The exterior surface is positioned to face a target object being printed upon. The roller assembly also includes a pliable tube in contact with the exterior surface and positioned to contact a thermal print ribbon disposed between the tube and the target object while the roller core is rotated to apply pressure on the ribbon and print onto the target object from the ribbon. The tube is not bonded to the roller core. |
169 |
Mandrel for printing apparatus, printing cylinder and printing apparatus |
US15504724 |
2016-03-29 |
US10099470B2 |
2018-10-16 |
Hendrikus Theodorus Gerardus Wientjes |
A mandrel for use in a printing apparatus includes a substantially cylindrical mandrel shaft and plastic expansion rings that are slidably and coaxially mounted on the mandrel shaft. The mandrel also includes a locking assembly including a fixed stop ring and a single locking ring that is axially movably mounted on the mandrel shaft. The expansion rings are positioned between the stop ring and the locking ring. In the unlocked position of the locking ring the expansion rings are in a released state in which the axial compression and the radial expansion of the expansion rings are smaller than in a locked position of the locking ring. A printing cylinder sleeve can be fixedly connected to the mandrel by bringing the expansion rings in the radially expanded state. When the printing cylinder sleeve has to be exchanged, this is feasible when the expansion rings are in the released state. |
170 |
Method for aligning at least two cylinders in a parallel manner relative to each other |
US14398488 |
2013-03-22 |
US10081084B2 |
2018-09-25 |
Udo Kobusch; Rainer Ehrenberg; Uwe Höwelmeyer; Frank Westhof; Martin Krümpelmann; Frank Gunschera |
The invention relates to a method for aligning at least two cylinders in a parallel manner relative to each other. In a first step, one cylinder is rotated and moved in a parallel manner towards the other cylinder in order to align a first end of the cylinder, and in a second step, the second end of the cylinder is rotated and moved towards the other cylinder in order to align the second end of the cylinder. |
171 |
METHOD OF MANUFACTURING PRINTING BLANKET |
US15314706 |
2015-12-18 |
US20180222177A1 |
2018-08-09 |
Kouji MURAOKA |
A method of manufacturing a printing blanket without wrinkles in a sheet is provided, the printing blanket including an elastic body and a sheet bonded to a surface thereof, the method being configured to press a surface of the sheet against a surface to be printed, to perform printing, and including: fixing the sheet at a periphery of a region of the sheet to be bonded to the elastic body; mounting the elastic body to oppose a bonding surface of the elastic body to a bonding surface of the fixed sheet; applying an adhesive to at least one of the bonding surface of the sheet or the bonding surface of the elastic body; and pressing the bonding surface of the sheet and the bonding surface of the elastic body against each other to bring the sheet into close contact with the elastic body through intermediation of the adhesive while stretching the sheet along the surface of the elastic body. |
172 |
Electret composition |
US13506765 |
2012-05-16 |
US20120291649A1 |
2012-11-22 |
Troy R. Parrott; Donna S. Senft |
A printing method and composition that is constructed from an electrostatically charged sheet having a top and bottom surface and a backing sheet. The backing sheet has top and bottom surfaces. The top surface includes a binding material. The top surface of the backing sheet is in contact with the bottom surface of the electrostatically charged sheet and retained by an attractive force. The binding material is preferably chosen to provide an electrostatic attraction between the electrostatically charged sheet and the backing sheet of approximately between 4 g/inch and 400 g/inch. The attractive force should be sufficient to couple the charged film to the backing sheet during the printing process all the way through until a user decides to uncouple the charged film from the backing sheet. |
173 |
Gap filling member for blanket cylinder |
US11130404 |
2005-05-17 |
US20050257487A1 |
2005-11-24 |
Sadanobu Akiyama |
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 portion capable of filling the concave portion. The limb portion is inserted between the surface of the terminal and initial winding end side of the blanket which is approximately parallel with the surface in a condition in which one face of the limb portion is brought in contact with the terminal winding end side of the blanket and is pushed on both surfaces in which one face and another face forming a wedge shape for the one face oppose approximately parallel to at least a site adjacent to the head portion. The head portion can fill the concave portion when the limb portion is inserted between the initial winding end side and the terminal winding end side of the blanket. The face portion of the head portion which is at least farther side from the limb portion is formed in a comparatively soft sense, thereby the installation and removal of the blanket cylinder is easily carried out, and the influence of the installation and removal to the blanket cylinder and printing pressure at printing is hardly affected. |
174 |
Apparatus for producing a printing image by means of a laser |
US11117415 |
2005-04-29 |
US20050241515A1 |
2005-11-03 |
Josef Gottling; Thomas Hartmann; Godber Petersen |
In an apparatus for producing a printing image on a printing medium held by a cylinder (1) by a laser, the laser writing head (7) of which is positioned on a crossmember (3) so as to be displaceable parallel to the axis of the cylinder (1), a space-saving functionally reliable embodiment is attained by the fact that a protective switch (10) which detects the presence of a cylinder (1) is provided fixedly on the crossmember (3) and the crossmember (3) bears switching strips (5, 6) which expose a laser writing head displacement region (b) between them having the width of the printing image (8) and interact with a further protective switch (11) attached to the laser writing head (7) for switching off the laser when it is situated outside the laser writing head displacement region (b). |
175 |
Devices for storing a blanket to be supplied to a cylinder of a printing machine |
US10511592 |
2004-02-19 |
US20050172844A1 |
2005-08-11 |
Georg Schneider; Karl Schafer |
Blankets or packings to be supplied to a cylinder of a printing machine, and having a certain length, are stored in a storage device. A holding element, in a first operating state, holds the blanket in a first storage position. The holding element and the blanket are separated when the holding element moves into a second operating state. When the holding element is detached, the blanket moves into a second storage position that is vertically spaced, along the length of the blanket, from the first storage position. Two holding devices can be used to hold the blanket on two of its opposed sides. When at least one of the holding elements moves into the second operating state, the distance between the two holding elements is at least temporarily enlarged above the dimension of the blanket held by the holding elements. |
176 |
Self-levelling under-packing for printing presses |
US10828187 |
2004-04-21 |
US20050158564A1 |
2005-07-21 |
Roberto Levi Acobas |
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 together. The polyester-based layer may be between 50 μm and 350 μm and the polyurethane elastomer layer may be between 20 μm and 1000 μm. The polyester-based layer may be adhesive-coated on one side, in which case the thickness, including the adhesive, may be between 40 and 100 μm, with the adhesive thickness not exceeding about 5 μm. |
177 |
Method for producing cylindrical coating carriers |
US71700 |
1998-05-01 |
US6080258A |
2000-06-27 |
Udo Tittgemeyer |
A method for winding a continuous material onto a supporting surface, the method being characterized more precisely by the following process steps:unwinding a material (6) from a material supply (7) and winding said material onto a supporting surface (5);the pendulum-type support (17) of the material (6,7) during the advance, permitting an automatic adjustment of a winding angle .alpha.;maintaining the tensile stress during the winding of the material (6);the cleaning and conditioning pretreatment of the material (6) carried out between unwinding and winding; andthe coating with adhesive carried out between unwinding and winding. |
178 |
Method and apparatus for mounting a blanket for a rotary press |
US779443 |
1997-01-07 |
US5787812A |
1998-08-04 |
Yukikazu Shoji |
An object of the present invention is to provide an economical and highly operable blanket mounting apparatus in which the width of a cylinder gap on a blanket cylinder is further decreased to eliminate a printing trouble such as shock-streak and to shorten the non printing length. To achieve this object, a flat bar 15a, 15b is installed at each end of a blanket 2, a notch 16 with the same size as that of the leading edge flat bar 15a is formed in a cylinder gap 3, the leading edge flat bar 15a of the blanket 2 is inserted along a leading edge opening 3a of the notch 16, and a tail edge 2b of the blanket 2 to which a flat bar 15b is fixed is reeled by a reel bar 14, by which the cylinder gap opening is blocked by the leading edge flat bar 15a. |
179 |
Method for testing elastic properties of a dressing on a printing
cylinder |
US421189 |
1995-04-13 |
US5721789A |
1998-02-24 |
Gerhard Loffler |
The object of the invention is attained in a manner where is at least one image pickup device is provided for picking up image signals obtained from at least one surface of a printed image, and a steering and control device connected to the pickup device in which the image sequences are stored. Furthermore, the image signals are examined for presence of jumps or transitions in tone values, and the position coordinates of the transitions in tone value jumps are stored. In a further step the frequency of those tone value jumps, in direction of the coordinates, which exceeds a given threshold value, are recorded, and applied to develop a signal for indicating need to replace the dressing. |
180 |
Rubber blanket unit fastening device |
US663814 |
1996-06-14 |
US5669306A |
1997-09-23 |
Helmut Puschnerat |
A device for fastening a rubber blanket unit to a blanket cylinder utilizes a rubber blanket secured to the surface of a support plate which is provided with beveled ends. These ends are insertable into a narrow slit in the cylinder and are held in the slit by pressure elements. A plurality of resilient ejectors are supported in this cylinder slit and have free ends which support a filler strip. The filler strip closes the gap between the blanket ends when the rubber blanket is attached to the blanket cylinder. |