Abstract: A hand stamp has a base and a handle which is movable between two folded positions and an operational position between the folded positions. The handle has legs with respective axles which are adapted to enter a bore in the base. There are lugs on respective axles which are adapted to cooperate with the respective one of the notches in the base to lock the handle in one operational position and two transportation positions. The handle is firmly but releasably held in each of the operational position and the transportation positions.

Abstract: In a rotary press, temperature of a printing plate is sensed by an infrared temperature sensor mounted in close proximity to a cylinder carrying the printing plate. Sensor output is used to control a closed loop of a water circulating system which includes one or more water-carrying rollers in an ink train. A water cooler and a water heater are provided in the closed loop and are controlled in response to the sensor output to maintain the printing plate at a temperature which allows proper inking thereof.

Abstract: A printer, comprising a print head; a paper path for a document to be printed; and a document transfer device arranged in connection with the paper path. The document transfer device is provided with parallel drive pulleys (5) gripping the underside of the document (3) and positioned on at least two sequential shafts and with spring-actuated pressure rollers (8) pressing the document from above against the drive pulleys, at least a part of the pressure rollers being possibly provided with drive and the rollers being arranged in parallel, like the drive pulleys, and sequentially above the drive pulleys to form pairs of drive pulleys and pressure rollers. The document transfer device further includes a plate-shaped stop means (9) to be guided to the paper path for straigthening the document. The stop member is positioned between the middle line through the axes of the rollers (8) positioned in the first row of the pairs of drive pulleys and pressure rollers and the rear line of said rollers.

Abstract: A keyboard, for use in a workprocessor or like electronic machine, includes multiple keys arranged in an array of rows and columns, a stationary base, a moveable operator connecting each key and the stationary base such that each key is moveable in four diagonal directions relative to the remaining keys, and spring strips and switch contacts disposed beneath each key and arranged such that movement of the key in any of the four diagonal directions closes a respective switch contact to produce a distinct function, e.g., an al0phanumeric character.

Abstract: A printer includes an outer case housing a printing head and a platen and being provided with a paper sheet introducing opening. A paper sheet introducing guide is mounted on the outer case to guide a paper sheet introduced into the introducing opening to a position adjacent to the platen. A paper sheet intermediate guide is mounted within the outer case to guide the paper sheet from the distal end of the introducing guide to a gap between the platen and the printing head. A paper sheet auxiliary guide extends from the intermediate guide to the upper surface of the distal end portion of the introducing guide.

Abstract: Two satellite printing stations (2, 3) are located vertically above each other, and a web (22) is guided first about a common impression cylinder (13) of the lower printing station, then upwardly about a common impression cylinder (4) of the upper printing station (2). To prevent set-off of freshly printed ink in the lower printing station (3) on the common impression cylinder (4) of the upper printing station, blanket cylinders (6, 7, 10, 12) of the upper printing station (2) are so located that, respectively, two blanket cylinders (6, 7, 10, 12) of printing couples of the upper printing stations are in vertical alignment so that a tangent at the nip between these blanket cylinders will be in an essentially horizontal plane (31).

Abstract: A thermal transfer printer having a simplified structure and an improved printing speed, includes a paper supply section including a plurality of roller guides for guiding sheets of paper from a paper tray, a printing section including a platen drum and a thermal print head, for printing a picture onto paper guided along the platen drum, and a paper discharging section including a plurality of roller guides, for discharging the printed paper. The printing section includes a platen drum, one or more guide drums and a pair of roller guides, forming a closed loop around the drums on which sheets of paper are carried.

Abstract: An apparatus for pressing a print head against a platen roll in a printer, which comprises a rotating profiled cam supporting the print head for moving the print head toward and away from the platen roll, a shaft in the center of and integral with the cam for rotating the cam, the profile of the claim having an arcuate cam edged section points of which along the arcuate edge section are at a gradually and smoothly continuously increasing distance from the shaft, and a circular cam edge section seamlessly continuously adjoining the arcuate edge section, points of the circular cam edge section along the circular edge being equidistant from the shaft, whereby the print head supported from the edge section of the cam is pressed against the platen roll at a constant pressure when the print head is supported from the circular edge section of the cam.

Abstract: This invention relates to a new type of decorative design and the method of producing said design. The process includes making an illustration of a picture or photograph, scanning said illustration while deleting part of the illustration, silk screening said scanned illustration with ultra-ink onto a substrate, and then cutting said substrate into a chosen article. The resulting article has a large part of the substrate without any ink on it, so as to give the design a three-dimensional look.

Abstract: A printing device having a detachable printwheel coupling means which includes a motor driven drive plate which is formed with a cantilevered spring finger and an aligning slot disposed on the side opposite the spring finger. The spring finger carries at its free end an alignment pin which automatically engages a radially offset cam surface located in a recess formed in the hub of a printwheel when the drive plate rotates relative to the printwheel. The printwheel hub also includes a drive pin which engages the aligning slot when the printwheel and drive plate abut under the urging of a pressure plate. The device inhibits angular and radial movement between the drive plate and the printwheel.

Abstract: Pressure cylinder for a printing machine equipped with air-conditioning and oil lubrication, the receiving shaft of a flexible cylinder casing being made hollow and at its respective ends having an inflow and an outflow for a cooling fluid, the receiving shaft passing furthermore through a chamber which forms an oil reservoir, the reservoir receiving the flexible cylinder casing rotatably, with ball bearings interposed, and this reservoir possessing on its underside orifices for the discharge of the oil and on its topside feed orifices cooperating with plates which extend radially into the immediate vicinity of the inner circumference of the flexible cylinder casing.

Abstract: A printing device including a print hammer having a noise dampener for use with an impact printer mechanism. The print hammer has a significant mass for impacting a character pad against an ink ribbon, paper and a platen. In a first embodiment the print hammer includes an acoustic noise dampening layer interposed between a mass weight and the hammer face which carries the anvil that impacts during printing. In other embodiments the print hammer is formed in two parts. One part having a weighted mass and the other part being pivotally coupled to the printer mechanism. The two parts are structurally joined together by a noise dampening member. Transmission of acoustic noise during impact printing through the hammer is reduced.

Abstract: The improved structures of the push-button key of keyboard are characterized in that the upper housing panel of keyboard comprises a plurality of partitioned sections where the push-button keys are installed, and that a key barrel of a predetermined height is set up at the center of each of the partitioned sections. The barrel wall comprises two slide keys positioned correspondingly to two slide key seats of the push-button key. The hooking means are arranged in the partitioned section at a predetermined distance from the key barrel. The stability of up-and-down movement of the push-button key is ensured by virtue of a coordinated action of slide key and slide key seats. The hooking means serve to confine the movement of the push-button key and to prevent the push-button key from being detached easily.

Abstract: A throw-on and throw-off device for a blanket cylinder in the printing unit of an offset press is provided wherein the blanket cylinder is mounted at both its ends in eccentric bushings and the pivoting throw-on/throw-off movement of the bushings is produced by a toggle-like linkage. Two parallel double-acting fluid pressure cylinders are connected by way of their piston rods to a cross link which is pivoted to one of the links of the toggle linkage. The two pressure cylinders can be individually supplied with compressed air either consecutively or simultaneously so that, in the first case, precise sequential throw-on of the blanket cylinder on the plate cylinder and subsequently on the impression cylinder can be achieved and, in the latter case, there can be a very rapid throw-off of the blanket cylinder from both the impression cylinder and the plate cylinder.

Abstract: A printing plate including a printing plate member, an easily deformable elastic layer laminated on the printing plate member, a surface layer having a higher elasticity than that of the elastic layer, laminated on the elastic layer, and a printing surface layer formed on the surface layer. The printing surface layer has an image area having an affinity with an ink and a non-image area having an ink repellancy.

Abstract: A dot print head includes an armature assembly constructed by providing an armature guide holding a plurality of armatures for swing motion in a cup-shaped housing having one open end, slidably guiding a plurality of print wires attached to the inner ends of the armatures by a wire guide, interposing armature return springs between the armatures and the armature guide, disposing an armature stopper in contact with the backsides of the armatures opposite to the front sides of the same facing the armature guide, and disposing stopper seats between the inner surface of the bottom wall of the housing and the inner surface of the armature stopper; and a yoke assembly joined and fastened to the armature assembly with fastening members.

Abstract: A non-contact web cleaning apparatus has a pair of guide rollers over and under which a paper web is run and two cleaning heads, each for cleaning a respective one of the two opposite sides of the moving paper web. Each cleaning head has a pressure slot for directing compressed air against the moving paper web as it passes around a respective one of the guide rollers and a vacuum slot for carrying away particles dislodged from the paper web by the pressure slot flow. The two cleaning heads are pivotally mounted about fixed axis so as to be displaceable relative to the guide rollers, and hence to the path of the paper web, between first positions in which the heads are disposed in their operational positions relative to the guide rollers for cleaning the paper web and second positions in which the heads are spaced sufficiently far from the guide rollers to facilitate feeding of the paper web therebetween.

Abstract: A powder dusting apparatus for dusting printed products with fine powder has a plurality of nozzle bodies (42) arranged in parallel one beside the other, which emit the powder mist. The spacing of the nozzle bodies (42) can be adjusted by a thread drive (26, 66) and a lazy tongs arrangement (52).

Abstract: A stenographic machine of the type having a platen means for supporting a paper tape and a memory means for electronically storing stenographic notes as well as a plurality of keys and associated electromechanical elements for recording testimony and proceedings on the paper tape or electronic memory. More particularly, the stenographic machine and the present invention includes a note marker assembly including at least one input key which is electromechanically connected to initiate the translation of an ink pad into contact with the paper tape, and for simultaneously inserting an electronic mark into a memory means.

Abstract: An inking device for a postage meter in a high speed mailing machine is disclosed in which the inking device has an ink reservoir containing an ink pad, and a cover member to secure the ink pad in the reservoir. The reservoir is formed as a generally rectangular tray having a flat bottom wall and upstanding front, rear and side walls, and includes a plurality of elongate upstanding ribs covering most of the area of the bottom wall for supporting an ink pad and for defining ink flow channels between the ribs. There are also relatively short upstanding ribs disposed around the other sides of the tray, and all of the ribs have upwardly inclined portions adjacent the front, rear and side walls against which a cover member presses to compress that portion of the ink pad which overlies the inclined portions of the ribs.