Convertible Printing Press (e.g., Lithographic To Letter Press) Patents (Class 101/DIG49)
  • Patent number: 5630363
    Abstract: A combined lithographic/flexographic printing process having a plurality of successive printing stations for printing color images on a substrate in a continuous in-line process. One of the stations prints a first color image using the flexographic process and at least one of the successive printing stations prints a second color image over the first color image using an offset lithographic process in the continuous in-line process.
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: May 20, 1997
    Assignee: Williamson Printing Corporation
    Inventors: Bill L. Davis, Jesse S. Williamson
  • Patent number: 5282417
    Abstract: The intaglio printing machine has three machine stands (I, II, III). Essentially, the impression cylinder (1) and the plate cylinder (2) are mounted in the first stand (I), the stencil rollers (10) and the inking unit (11) are mounted in the second stand (II), and the color-collect cylinder (8) is mounted in the third stand (III). The third stand (III) is adjustable in such a way that it can be removed from the space between the first and second stands and brought into an inoperative position, so that it is possible to bring the second stand (II) up against the first stand (I) to form an intaglio printing machine with direct inking. This results in a convertible intaglio printing machine by means of which a collect intaglio print can be made in a first operating position, in which all three stands assume their working position, and a direct intaglio print can be made in a second operating position, with the use of only the first and second stands.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: February 1, 1994
    Assignee: De La Rue Giori S.A.
    Inventor: Albrecht J. Germann
  • Patent number: 5208076
    Abstract: A method for printing a web along the entire transverse width of the web, while avoiding ink build up on an impression cylinder, comprises passing the web between a printing cylinder and an anilox roll, and applying ink from the anilox roll to the web such that the ink covers substantially the entire width of an outer surface of the web.
    Type: Grant
    Filed: August 29, 1991
    Date of Patent: May 4, 1993
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: Bill R. Wood
  • Patent number: 5123345
    Abstract: The squeegee arm and screen frame portions of a tilt screen type screen printing machine are pivotally connected to specially designed rocker housings slidably movable along horizontal support rods. The rocker housings have portions which are not rotated by pivoting of the squeegee arm and screen frame, thus permitting such rocker housing portions to be horizontally driven along the support rods by rodless air cylinders mounted on the machine. Additionally, the nonrotatable portion of the screen frame rocker housing carries a horizontally disposed gear rack which can be operatively mated with a pinion drive gear portion of a rotatable fixture supporting a round item to be printed so that horizontal translation of the rack rotationally drives the fixture during the screen printing process. Because of the rocker housing design, upward tilting and horizontal movement of the screen frame does not disrupt the rack and pinion registry.
    Type: Grant
    Filed: July 25, 1990
    Date of Patent: June 23, 1992
    Inventor: Gary E. Wood
  • Patent number: 5062360
    Abstract: The rotary web-fed printing machine has three successively arranged printing units, namely one offset and two intaglio printing units which are all of a similar design to sheet-fed printing units and in which the cylinders (2, 3) forming the printing nip have a plurality of sectors separated by cylinder pits (2a, 3b). Each printing unit has, in front of the printing nip, a first paper-web store (29) and an intermittently controllable first draw-roller unit (30) and, after the printing nip, an intermittently controllable second draw-roller unit (31) and second paper-web store (32), the draw-roller units (30, 31) which have only one suction roller being controllable for the forward and backward movement of the web (P) by means of individually regulated drives (30a, 31a) and at the same time serving for the register check.
    Type: Grant
    Filed: August 1, 1990
    Date of Patent: November 5, 1991
    Assignee: De la Rue Giori S.A.
    Inventors: Albrecht J. Germann, Hans B. Bolza-Schunemann, Johannes G. Schaede, Joachim A. H. Lapp
  • Patent number: 5042378
    Abstract: The printing machine is composed of an indirectly printing printing unit (A), and a sheet transport device (B), composed solely of drums (18, 19, 20, 22, 23, 24), and of a following intaglio printing unit (C). The indirectly printing printing unit (A) has two interacting blanket cylinders (3, 5), each of which is inked with several colors by several plate cylinders (12, 15; 7, 10). The sheets are passed onto one of the blanket cylinders (3) from a carry-over drum (2) and, after passing through the nip between two blanket cylinders (3, 5), thereby being printed on both sides, are taken over by a transfer drum (18) of the sheet transport device. The circumferential region which is located between the carry-over drum (2) and transfer drum (8) and over which the sheet passes extends over at most 180.degree., preferably less than 150.degree., so that that free circumferential region of this blanket cylinder not covered by the sheet is available for accommodating several plate cylinders.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: August 27, 1991
    Assignee: De La Rue Giori S.A.
    Inventor: Albrecht J. Germann
  • Patent number: 4936214
    Abstract: An attachment and method for converting a duplicator to a multi-purpose machine capable of printing serial numbers, designs, logos and signatures, as well as scoring and perforating work sheets including a chase adapted to be attached to a blanket cylinder of a duplicator machine for receiving implements for serial numbering, printing signatures, designs and logos, perforating and scoring.
    Type: Grant
    Filed: June 28, 1989
    Date of Patent: June 26, 1990
    Assignee: Innovative Graphic Industries
    Inventor: Thomas J. Overholser
  • Patent number: 4848265
    Abstract: A printing apparatus which is provided with an integral rotary shaft supported on the main unit's frames, a numbering device, a relief imprinting cylinder, and a coating cylinder which are detachably and alternatively mounted on the rotary shaft from its periphery, and an ink unit and a coater unit, thereby enabling coating operations as need in addition to numbering and imprinting operations.
    Type: Grant
    Filed: December 8, 1987
    Date of Patent: July 18, 1989
    Assignee: Komori Printing Machinery Co., Ltd.
    Inventor: Tatsuo Komori
  • Patent number: 4813356
    Abstract: A clamping device of a plate cylinder for recessed in-line varnishing in a rotary press which comprises two axis-parallel clamp bars having a top part and a bottom part, which are circumferentially adjustable in a parallel or an inclined relationship to one another in guides by means of clamp screws bearing against the plate cylinder, and which are axially adjustable by means of axial setscrews, and having a groove extending over the entire length of the clamp bars in the bottom part which provides for the insertion and fixing of reinforced bent ends of the blanket, and the top part is pivotally and slidably connected to the bottom part by locking devices and recesses for the clamping screws, and additional centering means are provided for at least two of the clamping screws.
    Type: Grant
    Filed: September 4, 1986
    Date of Patent: March 21, 1989
    Assignee: M.A.N. Roland Druckmaschinen
    Inventors: Paul Abendroth, Herbert Rebel, Manfred Herold