Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7395759 | Sleeve for a printing machine The invention relates to a sleeve, particularly a rubber blanket sheath, for a printing machine. The sleeve (10) has a two-layer structure comprising an internal layer designed as support layer (11), and an external layer designed as cover layer (12... | 07/08/2008 |
| 7392740 | Web fed rotary printing unit A web-fed rotary printing unit having a plurality of printing mechanisms is provided. Each printing mechanism includes a form cylinder (1, 5, 16-18, 27-30), a transfer cylinder (2, 6, 3, 7, 12-15, 22-25) and an impression cy... | 07/01/2008 |
| 7383773 | Apparatus for deflecting individual webs An apparatus for deflecting a printing material web coming from a printing press that is cut into at least two individual webs to laterally arranged processing devices. The apparatus includes a respective load-bearing frame for each individual web. A respective defl... | 06/10/2008 |
| 7383771 | Web-fed rotary printing unit A web-fed rotary printing unit having a plurality of printing mechanisms is provided. Each printing mechanism includes a form cylinder (1, 5, 16-18, 27-30), a transfer cylinder (2, 6, 3, 7, 12-15, 22-25) and a separate or co... | 06/10/2008 |
| 7347144 | Method for carrying out a production change on a printing press with automated change of a printing plate An automated method is provided for carrying out a production change, which is specific to the printing plate, on a printing press. After a first print job is printed on a printing press, the printing of the first print job is stopped automatically after a predefine... | 03/25/2008 |
| 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 includes an electrode that extends over the width of the cylinder for... | 02/12/2008 |
| 7305921 | Combined printing press In order to process inexpensive printing materials in connection with the processing of an extremely wide range of coating media, such as solvent-containing printing inks, and, moreover, in connection with variable format configuration and extremely flexible process... | 12/11/2007 |
| 7290488 | Apparatus and method for changing printing sleeves on a printing machine The invention provides an apparatus for the mounting and/or demounting of at least two printing sleeves outside a printing unit of a printing machine. The printing sleeves include an outer printing sleeve forming a printing surface and an inner printing sleeve provi... | 11/06/2007 |
| 7267053 | Delivery device for a sheet-processing machine The invention relates to a delivery device for a sheet-processing machine. The object of the invention is providing a delivery device on a sheet-fed rotary printing machine, that can be universally used and permits quality control of the printed and/or laminated she... | 09/11/2007 |
| 7213514 | Extension arm for a sheet-processing printing machine A sheet delivery mechanism for a sheet-fed printing machine which is adapted to reduce changes in the position of sheet material in a stack during a stack changeover operation and which facilitates the formation of a stack with properly aligned edges. The sheet-deli... | 05/08/2007 |
| 7104195 | Packing for a sheet-guiding cylinder in a processing machine A printing and/or varnishing machine having a plurality of sheet-guiding cylinders in which at least one of the cylinders has an outer detachable packing which has enhanced ink repellent characteristics and which significantly reduces wear. The packing has a layered... | 09/12/2006 |
| 7086332 | Punching device The invention pertains to a device for processing printed matter, in particular, for punching, perforating, grooving, embossing, imprinting, spot-coating or the like. In order to simplify the attachment of the processing tools required for the additional processing,... | 08/08/2006 |
| 7047662 | Printing press dryer having an excimer radiant heater A printing press dryer having an excimer radiant heater adapted for high energy output and compact mounting within the printing press. The heater includes a housing (1) within which a plurality of radiant tubes (2,3) are arranged in parallel relation t... | 05/23/2006 |
| 6877251 | Drying installation within a sheet-fed printing press A drying apparatus for a sheet-fed offset printing machine which dries sheets as they pass along a sheet path with forcefully directed air and/or heat. The drying apparatus of the present invention is adapted for more effective sheet drying by means of an electrode ... | 04/12/2005 |
| 6848362 | Varnishing apparatus To provide a varnishing apparatus for indirect printing with the lowest possible structural outlay, a varnishing mechanism of the varnishing apparatus for varnishing webs includes a form cylinder and a transfer cylinder, the web running between the transfer cylinder... | 02/01/2005 |
| 6829996 | Method and apparatus for processing a printing ink containing inhibitors and oligomers in a printing unit A method and apparatus for processing a printing ink containing inhibitors and oligomers in a printing unit of a rotary printing machine in which the drying times of the printing ink on the printing material is shortened and the printing quality improved. In the ill... | 12/14/2004 |
| 6786152 | Dosing system for inking up rollers in a printing machine An ink metering system for a roller train in a printing machine which in the illustrated embodiment includes a fountain roller and a downstream train of rollers communicating with a plate or form cylinder of the printing press. One or more plating devices (12... | 09/07/2004 |
| 6736064 | Distribution drive for a roll in a processing machine such as a printing press A distribution drive for a roll in a processing machine, and particularly in a press which has an improved axial motion distribution mechanism and which requires little installation space. This is achieved by an input drive mechanism coupled to a drive having at lea... | 05/18/2004 |
| 6729233 | Sheet guide device in a rotary printing machine A sheet guide apparatus for use in a rotary printing press which is adapted for the smear and mark free transfer of sheets between two sheet holding and transfer systems, such as a pair of sheet-carrying cylinders or a sheet-carrying cylinder and circulating sheet c... | 05/04/2004 |
| 6726203 | Sheet guide arrangement in a printing machine An air assisted sheet guide device in a printing machine which is operable during either positive pressure (blast) air operation as well as suction air operation to permit reliable and stable sheet guidance with reduced air flow turbulence. The sheet guide device in... | 04/27/2004 |
| 6725773 | Monitoring device for printer A monitoring device is provided for a printer, especially a sheet-fed offset printer. The printer has a controller that records the signals of signal transmitters in the individual units of the printer, through which command signals for actuators/drives connected to... | 04/27/2004 |
| 6718908 | Coating machine for upgrading sheet material A coating machine for applying a flowable coating substance to a sheet material to improve its surface. The coating machine has a series construction which lends itself to easy modification and versatile use. The coating machine includes, in a sheet conveyance direc... | 04/13/2004 |
| 6712002 | Method and apparatus for ink feed control A printing machine having an inking unit which prevents overinking of the printing cylinder upon increases in printing speed, such as during start-up of a printing operation. The inking unit includes an ink supply, two roll trains each comprising a plurality of inki... | 03/30/2004 |
| 6699328 | Device for the temperature equalisation of coating media Temperature control of the coating medium is performed to influence the processability of coating media in an applicator system. In order to operate without losing efficiency, devices acting directly from the inside or the outside for heat supply or dissi... | 03/02/2004 |
| 6676364 | Stack changing device On stack changing, in a sheet feeder, a remaining-stack carrying device (3) is used, of which the remaining-stack bars (7A, 7B) can be pulled in a staggered manner. For better access, a U-shaped mounting (6) is provided, in which the pull drives (11) of t... | 01/13/2004 |
| 6543354 | Device for quickly establishing a production-run state in a printing group of a rotary printing machine A device for quickly and reliably establishing a production-run state in a printing group of a rotary printing machine after the printing cycle has been interrupted. A plurality of freely programmable memory devices having various different printing contr... | 04/08/2003 |
| 6244174 | Maintenance and inspection system for a printing machine A maintenance and diagnostic system for a printing machine, preferably a sheet-fed offset printing machine, includes a control system having at least one computer and is connected to signal transmitters that are sensors and/or limit switches. The main dri... | 06/12/2001 |
| 5979701 | Page brake in a printing machine fly A sheet brake improves laying sheets off onto a stack in the take-off unit of a sheet-fed rotary printing press. The sheet brake is provided with a crank drive that generates a back-and-forth stroke by way of a synchronized drive mechanism at the rate tra... | 11/09/1999 |
| 5598779 | Sheet guiding apparatus for a turning device in a rotary printing machine for face-printing and/or perfecting A sheet-guiding apparatus for a turning device in a rotary printing machine guides a sheet being printed to prevent smearing. The turning device includes a turning drum and at least one sheet-guiding cylinder. The turning drum and the sheet-guiding cylind... | 02/04/1997 |
| 5557960 | Device for producing a tube, in particular a tube-shaped printing form, with a continuous circumferential surface A device for producing a tube-shaped printing form from a plate with a register hole system. A clamping strip which can be supported in its initial position and fastened to the respective plate edge longitudinally is provided for each edge of the plate to... | 09/24/1996 |
| 5555809 | Erasable printing form A method for producing an erasable printing form by making the outer layer of the printing form from a material containing strong micro-dipoles, preferably a ferroelectric material, in particular a ferroelectric ceramic. In wet offset printing, the non-pr... | 09/17/1996 |
| 5542350 | Draw-in device and process for feeding webs of material into a printing machine A draw-in device for feeding a plurality of printing stock webs, preferably paper webs, in which draw-in elements of finite length grasp the start of a paper web and draw it out of reel changers and draw mechanisms through printing units and up to folding... | 08/06/1996 |
| 5492059 | Offset printing form and process for the production thereof An offset printing form comprising at least one printing form made up of at least one driving plate which is of metallic material and cut to size. The printing plate having starting and ending printing edges that are connected with one another so as to fo... | 02/20/1996 |
| 5488903 | Register device for a sleeve-shaped offset printing form For the register of a sleeve-shaped offset priming form in which the beginning and end of the plate-shaped blank of the printing form are connected by a weld seam, a guide element in the form of a projection is provided for the sleeve at the inside of the... | 02/06/1996 |
| 5485783 | Apparatus for fastening a flexible printing plate A plate-clamping apparatus suitable for automatic exchanges of plates and has only a narrow clamping channel. The apparatus includes a tie beam, which has clamping bodies that are elastic in the clamping direction and on the ends of which radial forces ca... | 01/23/1996 |
| 5481974 | Insert for ink fountains for printing machines In order to provide good sealing for an ink fountain insert installed in a wedge-shaped ink fountain, the base of the insert is lengthened at its lower end by a resilient strip by which the insert can be arranged on the ink blade, and the side walls of th... | 01/09/1996 |
| 5468209 | Sealing for a folding blade shaft A reliable, wear-resistant sealing for a collecting and folding cylinder includes, on each folding blade shaft, a disk (4) which has a sealing ring (13) arranged on the collar of the side facing the oil space (6) of the folding cylinder (1). The disk (4) ... | 11/21/1995 |
| 5462165 | Paper reel, paper reel unpacking station for unpacking the paper reel, and process for unpacking the paper reel A paper reel having a tear-off wire on its curved outer surface. The tear-off wire in turn has a catch clip at its front end. The paper reel is deposited on a paper reel unpacking station so as to be rotatable. The unpacking station includes a tear-off ta... | 10/31/1995 |
| 5454318 | Erasable printing form A method for producing an erasable printing form by making the outer layer of the printing form from a material containing strong micro-dipoles, preferably a ferroelectric material, in particular a ferroelectric ceramic. In wet offset printing, the non-pr... | 10/03/1995 |
| 5421260 | Apparatus for adjusting the impression of an impression cylinder equipped with a tube which can be slipped on An apparatus for adjusting the impression of an impression cylinder, equipped with a tube that can be slipped on, in a rotary press, the mounting of which apparatus has an eccentric bush equipped with a gearing, which is engaged in the operating state by ... | 06/06/1995 |
