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| Number | Title | Issue Date |
| 5005475 | Rotary printing machine construction To permit re-sleeving or re-coating of circumferentially continuous printing cylinders, one of the side walls of the printing machine is formed with an opening which is closed off by two separable parts, which are movable towards and away from each other,... | 04/09/1991 |
| 4833984 | Impression cylinder surface for perfecting press A rotary printing machine has first and second printing couples for accomplishing recto and verso printing of a web. Each printing couple includes an inking unit, a plate cylinder and an impression cylinder. Each of these impression cylinders may selectiv... | 05/30/1989 |
| 4821640 | Printing machine register adjustment system To permit both circumferential as well as axial register adjustment of three printing couples (1, 2, 3), in which the respective cylinders of the printing couples are interconnected by spiral gears, two of the blanket cylinders (4, 8) are axially shiftabl... | 04/18/1989 |
| 4815377 | Engaging and disengaging device for blanket cylinders of a four-cylinder printing assembly for roller rotary offset printing machines A device for engaging and disengaging of blanket cylinders in a printing assembly including two such blanket cylinders and two plate cylinders which are external relative to the blanket cylinder is disclosed. The device comprises a drive and a gear transm... | 03/28/1989 |
| 4785734 | Apparatus for controlling paper transfer speed of a printing section of a form printing machine In a form printing machine having a printing section provided with a printing unit comprising a plate cylinder, a blanket cylinder and an impression cylinder, a change speed means for changing the rotation speed of the impression cylinder independently of... | 11/22/1988 |
| 4768436 | Conversion of letterpress to offset printing A method and apparatus for conversion of a web fed letterpress unit (10) into a web fed offset printing press unit (42) having a main frame (12) an auxiliary frame (44) inside the main frame for receiving cylinders, a pair of offset plate cylinders (46 an... | 09/06/1988 |
| 4753168 | Rotary offset printing machine with clutched cylinder arrangement To permit selective operation of a rubber blanket--plate cylinder couple located, respectively, above and below an impression cylinder for double prime printing, prime-and-verso printing, or printing plate change while printing is carried out with a remai... | 06/28/1988 |
| 4696229 | Rotary offset printing press equipped for flying plate change A rotary offset printing press which can be operated either for prime and verso printing or for printing on one side only, with flying plate change in the latter case, is organized so that the common counterpressure roller used with either of the two pair... | 09/29/1987 |
| 4651641 | Offset rotary press The known offset rotary press of the type that at least a pair of printing cylinders consisting of a plate cylinder and a blanket cylinder are disposed in juxtaposition adjacent to each other, and that the adjacent plate and blanket cylinders are rotated ... | 03/24/1987 |
| 4643090 | Printing press and method A printing press includes an improved method and apparatus for moving printing cylinders between thrown off positions in which bearers connected with the cylinders are separated and thrown on or printing positions. The printing cylinders are urged to thei... | 02/17/1987 |
| 4620480 | Conversion of letterpress to offset printing A method and apparatus for conversion of a web fed letterpress unit (10) into a web fed offset printing press unit (42) having a main frame (12) an internal support such as an internal auxiliary frame (44) inside the main frame for receiving cylinders, a ... | 11/04/1986 |
| 4616564 | Modular offset lithographic printing tower A low cost, variable, modular, web-fed offset lithographic printing unit or tower is disclosed which allows significant economies in production and maintenance, and can be easily and quickly modified in the field using interchangeable modules so as to var... | 10/14/1986 |
| 4527473 | Thermal adjustment apparatus for rotating machines A method and apparatus for setting the positioning between a first rotating member and a second fixed or rotating member in a rotary machine comprises controlled thermal elements positioned on the frame supporting the members and/or on the rotating member... | 07/09/1985 |
| 4526099 | Reversible color deck for rotary printing presses A reversible color deck apparatus for rotary printing presses for permitting a printer to selectively print a plurality of colors on one side or the other of a paper web. The apparatus includes a plurality of image delivery rolls or cylinders disposed in ... | 07/02/1985 |
| 4466349 | Cylinder construction for a printing press A cylinder for a printing press in which the gap for receiving the ends of a plate or blanket is skewed at an angle with respect to an axial length on the surface of such cylinder such that streaking of the printed product as is visible to the human eye i... | 08/21/1984 |
| 4394835 | Drive for rotary-roller offset printing machines The disclosure concerns a nine-roll or ten-roll printing mechanism, in which the directions of rotation of the rolls have to be reversed individually according to a printing program. The driving connection to the plate rolls is effected through two opposi... | 07/26/1983 |
| 4354449 | Two sided coater Two side coaters and methods of coating paper on both sides are disclosed in which a web of paper to be coated is moved in a generally upward direction in partially wrapped relation to a coating roll, so that one side of the web is in contact with and sup... | 10/19/1982 |
| 4301728 | Rotary printing press with a bumping mechanism Rotary printing presses of the type embodying rotatably driven series of inking cylinder, plate cylinder and impression cylinder components. Particularly, a mechanism for "bumping" the impression cylinder shaft with respect to the plate cylinder for press... | 11/24/1981 |
| 4208963 | Newspaper printing system A newspaper printing system wherein low viscosity newsprint ink and dampening fluid are applied to opposed lithographic printing plates which simultaneously engage opposite sides of a web of porous absorbent newsprint to print on both sides of the web. Ea... | 06/24/1980 |
| 4198908 | Drive for an ink supplying device of a rotary printing press An ink supplying device which supplies ink to a plate cylinder and thus to a blanket cylinder of a rotary printing press includes a plurality of rollers which are in contact with one another and with the plate cylinder, respectively. The device further in... | 04/22/1980 |
| 4183297 | Rotary assembly for two-sided offset printing A pair of parallel blanket rollers have their ends received in respective eccentrics themselves received in respective spaced-apart holes in a support frame. A pair of plate cylinders each tangentially contacting a respective blanket cylinder are similarl... | 01/15/1980 |
