Abstract: An apparatus and method for teaching skills related to the preparation and interpretation of mechanical drawings, including a box with two opposing, hingedly-attached panels that open to form a pair of work surfaces, a set of cards depicting isometric views and orthographic projections, a set of cubes, a set of pieces for use in constructing isometric views and orthographic projections, a timer, and dice. The interior of the box may contain a plurality of compartments dimensioned for storing the components of the apparatus, a turntable and a slot for holding a card. The apparatus enables the user to practice a variety of drawing-related skills, including: using the pieces and cubes to construct two-dimensional and three-dimensional representations, respectively, of an object represented on a card; using the pieces to construct two-dimensional representations of a three-dimensional object constructed with the cubes; and preparing isometric views from orthographic projections and vice versa.

Abstract: An ink ribbon cartridge including a cartridge housing having a first side wall and a second side wall opposed to each other. The cartridge housing has a pair of first engaging portions on an inside surface of the first side wall. A supply spool and a take-up spool are rotatably disposed between the first and second side walls in spaced relation and carry an ink ribbon wound thereon. The spools have first end portions formed with flanges and second end portions opposed to the first end portions. The flanges have second engaging portions engageable with the first engaging portions. U-shaped leaf springs are disposed between the second side wall and the second end portions of the spools and bias the first end portions of the spools against the first side wall. The U-shaped leaf springs include base portions and annular portions extending from the base portions, respectively. The base portions have openings receiving the second end portions of the spools, respectively.

Abstract: A multiple station automated cap printer includes a plurality of printing heads mounted in fixed circumferentially spaced relationship to one another and are vertically movable between a raised non-printing position and a lowered printing position. A plurality of printing mandrels are disposed in fixed circumferentially spaced relationship to one another and rotatably mounted about a vertical axis between releasably fixed and precisely aligned positions below a respective one of the printing head. The mandrels include a cylindrical cap receiving platen which is rotatably mounted about an axis of rotation extending in a radial direction relative to the rotational path of the mandrel. Each mandrel includes a trolley frame which carries the cylindrical platen in a linear path which mirrors the linear path of travel of a squeegee mounted within each of the printing heads while the platen is rotated through an arcuate distance equal to the linear path of travel of the squeegee.

Abstract: To the end of reliably and accurately detecting a failure to properly eject a master plate and positively preventing the occurrence of secondary failures due to a failure to properly eject a master plate, the passage of both the leading edge and the trailing edge of the ejected master plate beyond a prescribed point in the conveying path of ejected master plates is used as an indication of a successful ejection of a master plate.

Abstract: This invention relates to a device, a system and a method for locating a printing screen at a selected starting position for printing operations and for resetting the screen to the starting position for its adjustment relative to an article. The device includes first and second centering plates disposed in overlapping relationship to one another. The plates are mounted to respective first and second moveable screen support members. At least one micro-adjuster is associated with each support member for effecting precise adjustment of the respective centering plates and, hence, the screen. A first micro-adjuster effects longitudinal movement of the first member and a second effects movement of the second member laterally. Thereby, planar movement of the screen and the associated centering plates is effected. The device also has an arm with an aperture for receiving and engaging a screen centering member. The member passes through the aperture and into engagement with a corresponding receptacle in the screen.

Abstract: A paper guide for a web-fed rotary printing press with multiple color printing groups on several vertically spaced levels provides a path for the freshly printed multiple color web to air dry as it travels along the machine frame. The length of travel of the air drying path is a multiple of the spacing between adjacent plate cylinders in any of the levels in the printing machine.

Abstract: An animal packing dummy comprising a replica of a packing animal; a saddle coupled to the packing animal; a plurality of pack boxes coupleable to the saddle; a plurality of lash lines for securing the pack boxes to the replica using knots; and an instruction manual describing how to tie knots for securing the pack boxes to the replica.

Abstract: A paper guide for a web-fed rotary printing press which prints multiple colors on both sides of a paper web uses multiple color printing groups arranged in pairs on a plurality of vertically spaced levels. Separate air drying paths are provided for the web after it has been initially printed in multiple colors on one side and again after it has been printed in multiple colors on its other side. The length of these paths are a multiple of the spacing between plate cylinders in each of the levels of the printing machine.

Abstract: A paper cutting device of an electronic printer which derives its motive power from the drive source operating the paper feed mechanism of the printer. The paper feed mechanism has a one-way clutch coupled to the paper feed drive shaft which locks on to the shaft when feeding print media in the forward direction and over runs when the paper feed drive source rotates opposed to the print media driving direction. A second one-way clutch is coupled to the cutter drive shaft and positively engages the cutter mechanism when the paper feed drive is operated in the reverse non-feeding direction. It over runs when print media is being fed. The cutting mechanism is driven through its one-way clutch to a couple eccentric crank. The crank pushes a linear guided cutter blade by means of an articulated link which engages the blade. The paper is registered against the front edge of a slot in the blade guide and the blade is forced through the restrained media.

Abstract: The present invention relates to a screen printing apparatus comprising a support mechanism for supporting the material to undergo printing; a printing plate in which an ink penetrating portion is formed possessing the shape of the print; a printing plate housing for housing the printing plate at a position in contact with the material to undergo printing; a slider which is capable of bi-directional horizontal movement with respect to the printing plate; a slider driving mechanism for driving the slider bi-directionally; a first squeegee and a second squeegee for spreading over the printing plate ink supplied to the printing plate; and a squeegee switch mechanism installed in the slider for supporting the first squeegee and the second squeegee, and for selecting one of these first squeegee and second squeegee, and placing the selected squeegee in contact with the printing plate.

Abstract: A reading kit comprises at least one sheet of text, a set of rubber stamps, and an ink pad. The text is in the form of a storyline of which key portions have been omitted. Each rubber stamp has an image which corresponds to a respective key portion in the text so that a reader may complete the story by stamping the appropriate image onto the sheet using the appropriate rubber stamp and the ink pad. Typically the storyline would be suitable for young children who are learning to read.

Abstract: In a woven cloth type screen printing plate for screen process printing, the screen printing plate has a first area through which a smaller amount of ink is passed and a second area other than the first area wherein each of component yarns A disposed in the first area is composed of an n (n.gtoreq.2) number of monofilaments, each having a diameter of d and the monofilaments being arranged in parallel without any gap, and each of component yarns B disposed in the second area is composed of a monofilament, having a diameter larger than d, arranged in the same direction as the component yarns A.

Abstract: An enclosed ink cup for a pad-type printing machine including a hollow structure defining a reservoir region that is closed around the sides and top, is open only at the bottom, and has a lower edge for sealably contacting an engraved printing plate so as to contain ink within the structure over the plate, and a vacuum port in the structure that communicates with the top of the region for applying a vacuum to the region above the ink to promote sealable contact between the lower edge and the plate.

Abstract: A ribbon cartridge for an impact printer includes a liquid ink container, a metering/transfer device such as a peristaltic pump, an ink reservoir pad, and an ink transfer roller. The metering/transfer device and a drive roller for the ribbon preferably receive motive power from a common source. With this arrangement, the cartridge carries a large quantity of ink and applies it to the fabric in a controlled manner, thus extending service life and improving operability of the cartridge.

Abstract: A stencil plate includes ink-permeated foam permeated with ink, the ink-permeated foam having a periphery; a heat-sensitive wrapping made from a thermoplastic film and a porous support adhered to each other, the thermoplastic film forming a thermoplastic film side of the heat-sensitive wrapping and the porous support forming porous support side of heat-sensitive wrapping, the heat-sensitive wrapping surrounding the ink-permeated foam so that the heat-sensitive wrapping covers the periphery of the ink-permeated foam with its porous support side in confrontation with the ink-permeated foam; and an ink-impermeable base material adhered by an adhesive to the thermoplastic film side of the heat-sensitive wrapping.

Abstract: A cylinder for a rotary printing press is provided with a press blanket clamping device that is usable to secure the ends of the press blanket to the cylinder. A blanket end ejection device is used to dislodge an edge strip of a blanket leading edge from an edge strip receiving groove portion of the clamping device. The ejection device uses one or more ejection pins and cooperating leaf springs to position the edge strip during its insertion and ejection into and from the press blanket clamping device.

Abstract: A stencil kit for applying decorative patterns and designs to architectural structures in which the kit includes one or more stencil templates fabricated from a closed-cell foam sheet with pattern and design cut-outs through which paint is applied to the surface of the architectural structure, the foam sheet having a contact side with a temporary stick adhesive for adhering the template to the surface of the architectural structure, and a top side with a surface allowing removal of misapplied paint, the stencil kit also including paint and stipple brushes for application of the patterns and designs.

Abstract: An improved squeegee holder for screen printing. A squeegee with a diamond or square shaped portion is clamped between two clamping plates inside V-shaped grooves in the clamping plates. Corner relief portions are provided within the clamping plates so that the corners not in use are not damaged. The clamping plates are aligned by two alignment pins and screwed together by a threaded rod with a handle. A spring surrounds each of the alignment pins urging the two clamping plates apart so that they separate when the screw handle is loosened.

Abstract: An improved key unit of a keyboard comprising a key top, a keyboard plate and a conductive film; the conductive film being mounted beneath the keyboard plate; the keyboard plate has a mounting base comprising a hollow cylinder mounted thereon and the key top being mounted on the mounting base through the hollow cylinder.

Abstract: A reliable, small and light stencil duplicating machine comprises a printing section, a sheet feeding section, and a sheet discharging section. The printing section includes a printing drum for wrapping a stencil thereon, a press roller and parts associated with a printing process. The sheet feeding section feeds each printing sheet into a space between the printing drum and the press roller. A printed sheet is stripped off from the printing drum by a sheet separating member of the sheet discharging section, and is discharged onto a tray.