摘要:
A transfer drum in a sheet-fed printing press having a support surface formed at least segmentally of individual punctiform support elements disposed on the circumference of the transfer drum includes another support surface disposed at least segmentally on the circumference of the transfer drum, the other support surface being continuous, both of the support surfaces being mutually interchangeable.
摘要:
Device for lifting of a paper sheet stack to a loading head of a printing machine where the paper sheets are deposited in a stack and taken off from at its top. The device is provided with a NON-STOP loader with a supporting grillage (6) formed of bars and an auxiliary lifting device for this grillage (6). The supporting grillage (6) is in contact with an extractable rear lifting beam (3) of an auxiliary stack (4). By one of its ends the extractable rear lifting beam (4) of the auxiliary stack (4) is mounted in the lifting device, which is placed on the non-serviced machine side and it is secured against pulling out. The other end of the extractable rear lifting beam (3), auxiliary stack (4), which is on the operator's side of the machine is loose. After use the device against pulling out is released and deposited somewhere outside the machine so that it does not hamper the operator in providing normal loader functions.
摘要:
A device for rolling up a printed sheet while protecting the printing indicia on the sheet, which comprises a plurality of plate means which define a roll-forming space, first means defining a first transport path for transferring the printed sheet to the roll-forming space to be rolled up therein, second means defining a second transport path for transferring a cover sheet to the roll-forming space to be rolled up therein in juxtaposition to the printed sheet whereby the printed sheet is rolled up together with the cover sheet in the roll-forming space.
摘要:
A printed product transfer assembly for supporting and carrying printed product from one station in a printer apparatus to another station includes a transfer structure including a product conveying surface, a blanket including fiberglass having several outwardly protruding fiberglass fibers and being secured snugly over the conveying surface; a flexible resilient material secured snugly over the blanket and engaged against circumferential movement relative to the blanket by the fiberglass fibers, and having several ridges for engaging and conveying the printed products and for cushioning the printed products to prevent marring of printing ink. The printed product transfer assembly preferably still further includes a delivery shaft; a transfer cylinder including releasibly interconnected first and second longitudinal cylinder half portions, each half portion including an arched outer shell segment forming a portion of a printed product conveying surface and first and second shell segment half hub structures secured respectively within and to the first and second longitudinal cylinder half portions, the half hub structures including delivery shaft receiving structure and hub inter-connection elements releasibly joining the first and second half hub structures together; and a transfer cylinder anti-rotation collar for fixing the transfer cylinder against rotation about and relative to the delivery shaft.
摘要:
A universal cylinder mount for mounting at least one a plurality of cylinders between a headstock and a tailstock of an engraver. Each of the cylinders has a mounting aperture at each end adapted to receive a universal cylinder mount associated with each of the headstock and tailstock. The universal cylinder mount is adapted to accommodate a plurality of mounting apertures formed with different sized and having various sloped walls for facilitating alignment and frictional gripping engagement of the cylinders. The universal cylinder mount comprises at least one helically-shaped spiral or engaging edge to facilitate reducing or completely eliminating the seizing action between the cylinder aperture and the universal cylinder mount of the cylinder when the mounts are rotated in a non-engraving direction or are moved away from the mounting surfaces.
摘要:
The two beveled ends of a sheet-shaped flexible support, such as a printing plate, are inserted in a slit in a plate cylinder. A bore extends laterally adjacent the slit and carries an inflatable hose. The hose can be inflated to apply a holding force against the plate ends positioned in the cylinder slit.
摘要:
An arrangement for transporting metallized belts or bands in a machine for transferring the metallized images from the belts or bands onto a sheet comprises a support for the belt supply bobbins, advance rollers for intermittent unrolling and advancing the belts, guide rollers for guiding the belts between the platens and then a discharge state around one of the platens of the press, a tension roller for placing the belts under tension and an arrangement for removing the worn belts from the machine. The advance rollers are arranged in a parallel group downstream from the platen press and slightly above a plane of transport for the sheets through the press. The machine includes at least one window provided in at least one of the lateral walls of the frame of the machine above this group of advance rollers so that an operator may easily obtain access to the rollers for replacement of the bands and/or adjusting the position of the bands.
摘要:
A device for fastening a rubber blanket unit to a blanket cylinder utilizes a rubber blanket secured to the surface of a support plate which is provided with beveled ends. These ends are insertable into a narrow slit in the cylinder and are held in the slit by pressure elements. The beveled support plate end lateral surfaces are in contact with each other.
摘要:
The invention is a method of issuing or altering lottery tickets to make them less vulnerable to fraud. The method involves marking the ticket, either manually or mechanically, as void before it may be canceled by the machine. Ticket reprints would be eliminated, and the terminal would have to read a portion of the barcode and the void mark to cancel a ticket. A complete serial number could be typed in if the barcode is not able to be read by the terminal. The requirement that the actual ticket being canceled be read by the scanner in the terminal would eliminate the fraud associated with the cancellation of lottery tickets.
摘要:
A gripping surface adapted to be mounted on the outer circumferential surfaces of a pair of cutting cylinders 12, 14 in a printing press is provided. The gripping surface includes a plurality of mounting strips 26. Each mounting strip 26 has an upper surface and a lower surface and a layer of VELCRO.TM. brand gripping material 38 mounted on the upper surface. The layer of gripping material 38 is mounted on the upper surface of each mounting strip 26 using a self adhesive. At least one keeper tab 36 is disposed on the lower surface of each mounting strip 26. The keeper tab 36 is mounted in a "t" slot formed on the outer circumferential surface of the cylinder on which the mounting strip is mounted. The mounting strips 26 are flat and formed of a thermoplastic material using an injection molding process.