Abstract: A doctor blade device for an inking rinse unit of a rotary printing machine, including a doctor blade support, provided with an ink channel, on which two parallel doctor blades that are adjustable in relation to a form linking roller are affixed and--together with the form roller, the doctor blade support and packing pieces, which are made out of an elastomeric material and clamped adjacent to the blades and roller by the support--delimiting a closed ink compartment, and including lines for the transport of ink into and out of the ink compartment. In order to be able to replace the packing pieces quickly and easily, they are held in their seats by clamping quick release closure.

Abstract: The present invention relates to a mechanism for transporting a printing ribbon past the print head of a printer using a rocking beam mechanism the rocking beam being driven by a drive means. The invention also provides a printer, notably a thermal printer, incorporating such a transport mechanism and a method for operating the printer.

Abstract: Transferring a sublimation ink image to the surface of an object by forming a plurality of conically shaped objects from a master cast. Coating the objects with an organic polymer. Casting a heat transfer block to match a portion of the exterior surface of then object. Printing an image with a sublimation ink onto a release paper. Manipulating the image to accommodate the configuration of the objects. Placing the image on one the objects and introducing heat and pressure to the image and the release paper through said block to effect the transfer of the image to the object.

Abstract: In offset presses in which the printing cylinder is provided with a tensioning spindle or reel rod the printing plate usually has a hooked edge which is inserted in a gap in the printing cylinder. The printing plate is then wrapped around the plate cylinder for insertion in the spindle within the plate cylinder. The tensioning spindle carries a slot for receiving an end of the printing plate. After insertion of the plate end in this receiving slot partial rotation of the spindle tightens the printing plate. A substantial amount of skill is required to fix a printing plate on a printing cylinder. It is not easy to align the gap in the printing cylinder with the slot in the tensioning spindle. Two hands are usually required. Herein the tensioning spindle end shaft carries a pinion capable of moving a rack associated with it when the tensioning spindle is partially rotated. A spring is installed to oppose the rack movement.

Abstract: A keyboard in which raised portions are embossed on a rubber sheet in correspondence to the respective switches of a membrane switch so that the raised portions may be pressed down to actuate the switches. A housing made of highly rigid synthetic resin is provided which has openings formed therethrough. A key top is disposed within each of the openings and formed integrally with the housing by means of at least two hinges. Each of the widthwise delimiting regions formed integrally with the housing between each widthwise adjacent openings has notches cut in from adjacent openings in depthwise staggered position. Each of the key tops has engagement tabs extending oppositely outward from two opposed side edges thereof adjoining the side edge where the hinges are formed and entering into the notches. A face panel having key top openings formed therethrough and arrayed in correspondence to the key tops is attached to the upper surface of the housing.

Abstract: A printing press having a plurality of laterally spaced printing stations is provided with an interstation dryer system, interposed between the printing stations, for effectively drying liquid printing substances, such as inks, coatings, and the like, on a moving printed sheet. The dryer system includes a plurality of infrared elements which are adapted to transmit infrared radiation toward the moving printed sheet to effectuate drying of liquid printing substances thereon and bonding thereto. In order to effectively dry a complete spectrum of ink colors and other liquid printing substances, the infrared elements comprise an alternating and repetitive series of shortwave infrared lamps and mediumwave infrared lamps which generate relatively short wavelength infrared radiation and relatively medium wavelength infrared radiation, respectively.

Abstract: A compact ribbon cassette for dispensing and storing a ribbon or tape upon integrally formed dispensing and storage spools. The dispensing and storage spools are disposed upon a common rotatable shaft mounted for rotation within the housing. A pair of meshing gears provide a positive ribbon drive that ensures that fresh ribbon is in place at the thermal print head for each MICR encode operation. The meshing gear positive ribbon drive system provides the optimum amount of ribbon for the print cycle to assure that MICR encode characters meet accepted industry quality standards.

Abstract: The invention comprises a rotatable sheet feed roller; a rotatable press-contacting roller capable of press-contacting against an outer peripheral surface of the sheet feed roller; a sheet feed motor, being a stepping motor, for rotationally driving the sheet feed roller; and a transmission mechanism for transmitting the rotational power of the sheet feed motor to the sheet feed roller; wherein a line feed starting position of the recording sheet at a initial predetermined pitch is set to permit continuation of line feeding by a predetermined amount from a moment a mechanical condition with respect to the recording sheet changes during line feeding at a portion where the mechanical condition changes. The invention provides a printer that performs line feeding by a very accurate amount by line feeding at a constant pitch, even though a mechanical condition of the sheet feed mechanism changes.

Abstract: An improved apparatus for reinking a ribbon of a printer ribbon cartridge provides a selected reinking pattern across the width of the ribbon. A porous member in contact with a source of ink has a height equal to a distance between a first edge of the ribbon and a distal edge of a double strike zone of the ribbon. The porous member is in contact with a transfer roller, which in turn is in contact with the ribbon. The ribbon moves through the printer cartridge along a path of a Mobius loop. As the ribbon passes the transfer roller for the first time, ink is provided to a single strike zone and to the double strike zone of the ribbon. As the ribbon passes the transfer roller for the second time, the ribbon is reversed given the pattern of the Mobius loop, and ink is provided again to the double strike zone, as well as to the other single strike zone. Twice as much ink is therefore applied to the double strike zone as to each of the single strike zones.

Abstract: A method for applying an anti-corrosion protective layer to the surface of a cylinder for the printing unit of a printing press, the surface having been cleaned and microroughened, includes uniformly applying to the cylinder surface a thermally cross-linkable plastic material dissolved in a solvent, drying and, respectively curing and cross-linking the plastic material layer at an elevated temperature, and then mounting the cylinder in the printing unit without further processing the surface form; and a printing unit cylinder having a surface to which the anti-corrosion layer has been applied.

Abstract: A stamp member including a first porous sheet in which ink can be impregnated, and a second porous sheet which is harder than the first porous sheet. A compressive strength of the second porous sheet being not less than 5 kg/cm.sup.2 when the second porous resin is compressed by 25%. The first and second porous sheets are fixed to each other at a plurality of points.

Abstract: A device for holding and tautening cylinder packings on printing machine cylinders, with at least one tension element whereon a cylinder packing is held, the tension element being pivotable coaxially with the cylinder axis, includes a rotatable lever, a locking device for locking the lever, and a spring member for transmitting a tensioning force to the tension element during a rotational movement of the lever so as to tauten the cylinder packing; and a printing machine including the foregoing device.

Abstract: The invention provides a tool which can be used with a punch press. On such tool includes a marking punch which has a recess; a marking punch magazine having a channel in which the marking punch is received and an external surface having a transverse groove therein which is in communication with the channel; a striker which strikes the marking punch to move the marking punch from its rest position to its marking position; and a resiliently compressible body received in the transverse groove of the magazine and in the recess in the marking punch. This compressible body desirably is compressed between the magazine and the marking punch when the marking punch is in its marking position, but resiliently biases the marking punch towards its rest position. The invention also provides a method of marking a workpiece, which method can employ such a tool.

Abstract: There is disclosed an ink roller assembly and a method of making an ink roller assembly. The assembly includes a base comprised of closely spaced connected discs providing capillary chambers and a porous sleeve. The method uses air to expand the porous sleeve while the sleeve is being slipped onto the base.

Abstract: A roller assembly (10) is provided which includes an anilox roller (12) mounted with a head (14) for applying a liquid (18) to another surface, such as a delivery, printing plate blanket, or impression cylinder. An end dam (42) is provided at each end of the head (14), which defines a curved seal surface (46) which bears against the bearer surface (58) at each end of the anilox roller (12). The curved seal surface (46) and bearer surface (58) form an end seal for the roller assembly. If desired, lubrication can be provided between the curved seal surface (46) and the bearer surface (58).

Abstract: A ribbon cassette is easily loaded without allowing a torsion force to be acted when the cassette is loaded into a printing apparatus and/or a facsimile apparatus each using the ribbon cassette. A ribbon cassette has a ribbon supplying part for supplying an ink ribbon, a ribbon take-up part for taking up the ink ribbon which is led from the ribbon supplying part and passed between a print head and a platen roller, and connecting parts for connecting the supplying and take-up parts. The connecting parts are provided with projecting holding parts for attachment or detachment, and the holding parts are positioned near the ribbon take-up part positioning on the side remote from a hinge member.

Abstract: In order to improve a stencil holder for stencils, preferably for screen printing, comprising a frame having four frame supports, at least two rows of tensioning elements acting on corresponding rows of fixing points of the stencil, these rows being arranged on the frame and located opposite one another and at least one of these rows being movable in a first tensioning direction extending transversely to the rows for tensioning the stencil, such that this is constructed in as simple a manner as possible and allows as optimum a tensioning of the stencil as possible it is suggested that the tensioning elements of the movable row be guided for movement in the direction of the tensioning direction by a plurality of guide elements, that with each guide element at least one tensioning element associated therewith be movable independently of the respectively other tensioning elements, that the guide elements for each row of tensioning elements be arranged on a guide rail extending along the respective row and that t

Abstract: The present invention provides a keyboard which can take an optional metal support for strengthening its structure. It comprises a cover plate with a plurality of vertical housings, a base plate mounted on the cover plate with a plurality of protruding pads installed under the vertical housings of the cover plate, a plurality of keys that are vertically and movably installed within the vertical housings, a membrane installed between the cover plate and the base plate comprising a plurality of switches. When any key is depressed, the underlying switch is pressed between the plunger of the key and the underlying protruding pad, and generates a corresponding sensing signal. The keyboard may also comprise a metal support installed between the cover plate and the base plate for increasing structural strength.

Abstract: A tape printing apparatus arranged to be used with a tape holding case. The case holds a first supply of image receiving tape and a second supply of laminating tape. An opening is provided between the first and second tape supplies. A printing mechanism is arranged to print an image onto the image receiving tape as it traverses the opening. A cutting location is provided where the image receiving tape is cut after an image has been printed thereon. The cutting location and printing mechanism lie on opposite sides of the first and second tape supplies.

Abstract: A cylinder unit is provided for a web-fed printing press. The unit includes first and second cylinders which form printing gaps with a common first counterpressure cylinder. Third and fourth cylinders are provided which form printing gaps with a common second counterpressure cylinder. The four cylinders and the two counterpressure cylinders are cylinders of a single H-shaped cylinder bridge. The second and third cylinders are spaced from one another at such a distance that a web can run in between these two cylinders in their printing-on positions at the respective counterpressure cylinders and can run out after wrapping around the two counterpressure cylinders. The first and fourth cylinders are spaced so close to one another that they can be reversed from a printing-on position against their respective counterpressure cylinder into printing-on position in relation to one another.