"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 8164800 | Method and device for engraving printing cylinders In a method or machine for engraving printing cylinders for packaging, pattern, or wallpaper printing and equipped with at least two engraving members, each engraving member engraving elements to be printed into the printing cylinder and, for an areal engraving, exe... | 04/24/2012 |
| 7940428 | Image generating apparatus A push-up member of this image generating apparatus includes a first push-up member integrally having a first assembly engaging portion provided between a first spring clip portion and a first engaging portion and a second push-up member integrally having a second a... | 05/10/2011 |
| 7483178 | Multi-function peripheral which facilitates maintenance A multi-function peripheral which facilitates maintenance includes a scanner unit, a printer unit and a support assembly. The support assembly includes a top platen, on which the scanner unit is placed, a bottom platen, on which the printer unit is placed, and a ver... | 01/27/2009 |
| 7428073 | Post card making device To make it possible with a post card making device composed of an original reading device and an image printing device that an image is prepared on an upward facing original image preparation surface, and in that condition, the original image can be read in by the o... | 09/23/2008 |
| 7358982 | Imaging device for a printing press An imaging device (10) for a printing form (12), in particular in a printing unit (82) of a printing press (84), having at least one light source (14) and an imaging optics (18) for projecting the at least one light source (... | 04/15/2008 |
| 7283283 | Methods and system for inline digital printing A friction driven printing device capable of delivering high-resolution images on the vertical surface of corrugated boxes, shipping cases, chip board, and the like, has a print cylinder assembly that is housed in a print carriage that is mountable on a conveyor lin... | 10/16/2007 |
| 7251051 | Pagewidth printing mechanism incorporating a capping mechanism A pagewidth printing mechanism includes a support structure. A print media feed mechanism is arranged on the support structure to feed print media along a feed path. A pagewidth printhead assembly is mounted on the support structure to span a print media feed path. ... | 07/31/2007 |
| 7191529 | Apparatus and method for controlling a programmable marking scribe A programmable marking scribe having a material displacement stylus movable in three mutually orthogonal axes to displace material from an object being marked and create a two-dimensional matrix of recessed areas formed of grooves and surrounded by ridges, the groov... | 03/20/2007 |
| 7136195 | Fluid capping mechanism When a printhead is not in use, it remains filled with ink. In order to prevent evaporation of the ink through the nozzles of the printhead, and the consequential depositing of ink components in and around the ink nozzles, the invention provides capping of the nozzl... | 11/14/2006 |
| 7072077 | Hardcopy printing device with capacitive print media monitor and methods of making and using the same A printing device can include a capacitive monitoring system to monitor the amount of print medium (e.g., paper) available in the printing device. The capacitive monitor includes conductive plates above and below the supply of print medium. With the print medium act... | 07/04/2006 |
| 7031027 | Method and apparatus for setting the idle distance of an engraving stylus from the cylinder surface of a rotogravure printing cylinder An idle distance of an engraving stylus for engraving a rotogravure printing cylinder is set from the cylinder surface of the rotogravure printing cylinder by use of a sliding element that is provided for the guidance of the engraving stylus connected to the sliding... | 04/18/2006 |
| 6985264 | Method for calibrating an engraving amplifier In a method for calibrating an engraving amplifier in an electronic engraving machine, whereby a vibration signal is used to control the engraving of an engraving element by using engraving tone values representing desired tone values ranging from “light” to “... | 01/10/2006 |
| 6954285 | Developing method and developing apparatus featuring two latent image developing operations using two electrical fields The present invention provides a developing method for developing a latent image formed on an image bearing member with developer including toner and carrier contained in a developer containing portion, comprising the steps of developing a first latent image for con... | 10/11/2005 |
| 6940621 | Engraving member An engraving element of an electronic engraving machine for engraving printing forms is formed of a shaft oscillating around a longitudinal axis with small rotational angles. A drive system is provided for the shaft with a lever attached to one end of the shaft. An ... | 09/06/2005 |
| 6768561 | Method for signal processing In a method for processing signals in an electronic engraving machine for engraving printing forms, in particular printing cylinders used for rotogravure, an engraving control signal is obtained by superimposing engraving data, representing tone values between “wh... | 07/27/2004 |
| 6741369 | Method for the operating an engraving member In a method for operating an engraving member in an electronic engraving machine to engrave printing forms, especially printing cylinders for intaglio printing, a stylus of the engraving member is controlled by an engraving signal and engraves a sequence of cups arr... | 05/25/2004 |
| 6738162 | Digital printer for avoiding moire patterns by using a dithering mask and angular rotation between print head and print medium to simulate analog printer halftoning of color images A semi-digital printer includes a print head assembly that prints an image on a sheet of paper that has been mounted onto a turntable, and a rotating means which rotates the turntable so that the print head assembly ejects ink or toner onto the sheet of paper at one... | 05/18/2004 |
| 6634286 | Engraving mechanism for electronic engraving machines An engraving element of an electronic engraving machine for engraving printing cylinders as a shaft oscillating with small rotational angles around the longitudinal axis, a restoring element, a shaft bearing, a damping mechanism, a drive for the shaft, a ... | 10/21/2003 |
| 5923435 | Engraver and engraving method for detecting and measuring run-out associated with a cylinder A method and apparatus for automatically measuring a cylinder characteristic, such as a cylinder diameter or a cylinder run-out and then automatically adjusting the engraver in response to the measurement and subsequently engraving the cylinder to account... | 07/13/1999 |
| 5867280 | Engraver with automatic tool changer An engraver including an automatic tool changer and verification system for changing engraving tools on engraving heads. The engraver includes a turret having a plurality of workholders for holding a plurality of replacement tools. Some of the workholders... | 02/02/1999 |
| 5854690 | Method and apparatus for aligning a cylinder in an engraver A method for aligning a cylinder support in an engraver includes a step of actuating a plurality of jaws to grip the cylinder support such that the cylinder support becomes automatically aligned in the engraver. The actuating step may further include the ... | 12/29/1998 |
| 5822078 | System for engraving a plurality of gravure rolls A gravure engraving system that capable of successively engraving each of a plurality of gravure cylinders through no intermediary of a manual operation, includes a transport device for transporting a gravure cylinder. The transport device is disposed bet... | 10/13/1998 |
| 5767981 | Engraving head support system with linear head driver A platform for supporting an engraving head in a manner accommodating translational movement without any associated rotation. The platform has a deck which is supported by a pair of flexible support columns. In operation the platform is situated alongside... | 06/16/1998 |
| 5731881 | Engraving method and apparatus using cooled magnetostrictive actuator An engraving head apparatus and method for engraving a gravure cylinder is shown. The engraving head apparatus includes a magnetostrictive actuator formed from a magnetostrictive material such as Tb1 Dy1-x. which elongatably drives a... | 03/24/1998 |
| 5671064 | Method and apparatus for engraving using a magnetostrictive actuator An engraving head apparatus and method for engraving a gravure cylinder. The engraving head apparatus including a magnetostrictive actuator formed from TERFENOL-D™ which elongatably drives a diamond-tipped stylus arm in a reciprocal manner in response t... | 09/23/1997 |
| 5661565 | Method and apparatus for aligning a cylinder in an engraver An automatic self-centering chuck system for use on an engraver. The chuck system includes a plurality of jaws which are slidably mounted for movement in a radial direction toward a central aperture of the chuck to clamp a shaft for an engraving cylinder.... | 08/26/1997 |
| 5583647 | Cylinder support apparatus and method for use in an engraver A method and apparatus for automated loading and unloading of a cylinder in an engraver. The method and apparatus permit the engraver to accommodate cylinders of differing geometries, including a range of lengths, diameters and mounting configurations. Th... | 12/10/1996 |
| 5492057 | Method and apparatus for positioning at least one engraving head A system for locating a plurality of engraving heads on an engraver wherein a plurality of engraving heads are automatically positioned into a predetermined configuration. A mechanism for positioning the engraving heads preferably includes a leadscrew and... | 02/20/1996 |
| 5491559 | Method and apparatus for engraving using a magnetostrictive actuator An engraving head apparatus and method for engraving a gravure cylinder. The engraving head apparatus includes a magnetostrictive actuator formed from TERFENOL-D™ which elongatably drives a diamond-tipped stylus arm in a reciprocal manner in response to... | 02/13/1996 |
| 5454306 | Engraving head platform A platform for supporting an engraving head in a manner accommodating translational movement without any associated rotation. The platform has a deck which is supported by a pair of flexible support columns. In operation the platform is situated alongside... | 10/03/1995 |
| 5424846 | Cylinder support apparatus and method for use in an engraver A method and apparatus for automated loading and unloading of a cylinder in an engraver. The method and apparatus permit the engraver to accommodate cylinders of differing geometries, including a range of lengths, diameters and mounting configurations. Th... | 06/13/1995 |
| 5355793 | Method and apparatus for making a mimeographic printing plate A heat-sensitive material is used for making a mimeographic printing plate. The plate material includes a screen where printing ink is passable, and a resinous membrane formed on its surface. The resinous membrane is heated and melted so as to form a numb... | 10/18/1994 |
| 4881133 | Arrangement for the recording of an information signal An arrangement for the recording of a digital information signal, in particular onto a plate-shaped, metallic recording carrier with the aid of a penetrating element is specified, in which the latter preferably has a pyramid shape with three side surfaces... | 11/14/1989 |
| 4878127 | Laser engraving machine for preparing rotary screen printing screens A laser engraving machine for engraving rotary printing screens includes a shaft (1) having one end connected to a rotary drive (3)for rotating the shaft (1), two end ring assemblies (7, 8) at least one (8) of which is movable along the shaft (1) and whic... | 10/31/1989 |
| 4805312 | Engraving head for apparatus for engraving printing cylinders In an engraving head for apparatus for engraving printing cylinders, a drivable engraving tool and a sensing organ contacting any printing cylinder being engraved by the drivable engraving tool are mounted on a common fixture. A damping element is located... | 02/21/1989 |
| 4451856 | Engraving and scanning apparatus An engraving head incorporates a shaft which is supported for high frequency oscillation by axially spaced metal spring elements, and the shaft is acted upon by improved dampening means to minimize undesirable transverse and transient vibrations. A diamon... | 05/29/1984 |
| 4438460 | Engraving apparatus and method An engraving head incorporates a shaft which is supported for high frequency oscillation by axially spaced metal spring elements, and the shaft is acted upon by improved dampening means to minimize undesirable transverse and transient vibrations. A diamon... | 03/20/1984 |
| 4357633 | Engraving apparatus and method An engraving head incorporates a shaft which is supported for high frequency oscillation by axially spaced metal spring elements, and the shaft is acted upon by improved dampening means to minimize undesirable transverse and transient vibrations. A diamon... | 11/02/1982 |