| Patent Number |
Title Of Patent |
Date Issued |
| 5117703 |
Gearwheel for the drive of offset press cylinders |
June 2, 1992 |
| A radially adjustable gearwheel for driving a cylinder of an offset press. The gear rim has three axially disposed tapered bores into which axially tapered bolts can be pressed to act radially on the gear rim. Additional axial bores are provided between the tapered bores to form expansio |
| 5110159 |
Rotating union for supplying compressed air to a rotating part of a printing press |
May 5, 1992 |
| A rotating union for supplying compressed air to the end of a journal of a rotating part of a printing press including a rotor disposed on the rotational axis of the journal and a tubular housing disposed in surrounding relation about the rotor. A plurality of ball bearings each havi |
| 5101723 |
Mechanism for the engagement, disengagement and adjustment of inking and damping rollers |
April 7, 1992 |
| Adjustment means for engaging, disengaging and adjusting inking and damping rollers are provided in the inking and damping units of offset printing machines. The printing machine includes inking rollers supported on cam rollers which bear on cam discs situated axially parallel to the pla |
| 5081925 |
Selective drive for a damping unit metering roller in an offset printing press |
January 21, 1992 |
| A selective drive for a metering roller in a damping unit of an offset printing press which enables the metering roller to be driven by the damping fluid fountain roller without peripheral slip during the joint washing of the damping unit and inking unit. The gearwheel drive producing |
| 5076167 |
Arrangement for the parallel tensioning of printing plates |
December 31, 1991 |
| In order that the tension, particularly of large printing plates, and their automatic retensioning, may be regulated uniformly over the entire width without having an adverse effect on the final tensioning by means of tensioning screws (11), a tensioning lever (15, 16) is associated with |
| 5076166 |
Arrangement for the accurately positioned quick-action clamping and tensioning of printing plate |
December 31, 1991 |
| An arrangement for the accurately positioned quick-action clamping and tensioning of printing plates on a plate cylinder (1). Clamping tools (14) are disposed in frame walls (2) and, after appropriate positioning of the plate cylinder, are engageable in coupling sleeves (12) on camshafts |
| 5072670 |
Gap cover for blanket cylinders in sheet-fed offset rotary presses |
December 17, 1991 |
| A blanket cylinder is covered by a blanket having ends secured by spindles in a wide gap extending parallel to the central axis of the cylinder. The cylinder includes a cover rail having a substantially mushroom-shaped cross-section disposed along the length of the gap. The cover rail is |
| 5027704 |
Drive mechanism for axially reciprocating the intermediate rollers in an offset printing press |
July 2, 1991 |
| To provide a drive mechanism for axially reciprocating the first roller or the first and second roller of an intermediate roller pair adapted to be selectively associated with the first ink spreader roller of an inking unit or with the final applicator roller of a damping unit of a combi |
| 5025724 |
Change-over device for an intermediate damping roller in an offset printing press |
June 25, 1991 |
| To enable two intermediate rollers to be selectively associated with a combined damping and inking unit as connecting rollers, or with the applicator roller of the damping unit as a first rider roller and a tandem second rider roller, the spindle of the second intermediate roller is |
| 5025723 |
Drive for the rotation and laterally reciprocating distributing roller in inking or damping unit |
June 25, 1991 |
| A drive for rotating and reciprocating a distributing roller in inking or damping units of offset printing presses includes two gears rotating at different speeds from one another, only the first rotation-transmitting gear of the two gears is driven by a gear connected to the plate cylin |
| 5005474 |
Attachment for a damping unit of an offset printing press |
April 9, 1991 |
| An attachment which can be fitted subsequently to the damping roller of an existing damping unit in order to obviate mottling includes a mounting frame in which tandem distributing rollers are mounted radially of a common damping roller for resilient movement and are driven thereby in th |
| 4869169 |
Apparatus for chain transfer conveyance of sheet printed in a press |
September 26, 1989 |
| A sheet transfer conveyor for rotary sheet feed printing press comprising a pair of chains which support and transport a plurality of gripper carrying trolleys which successively engage the leading edge of a sheet from a printing press cylinder, such as an impression cylinder, for removi |
| 4858910 |
Conveyor for a sheet-fed rotary press |
August 22, 1989 |
| A conveyor for a sheet-fed rotary printing press for transferring sheets away from an impression cylinder includes a delivery cylinder disposed adjacent the impression cylinder, and a chain conveyor having a plurality of sheet grippers, adapted for moving the grippers about the delivery |
| 4828246 |
Back-edge stop for sheet stackers of sheet-fed presses |
May 9, 1989 |
| The invention relates to a back-edge stop in the form of a cross-member for sheet stackers of sheet-fed presses having a vertically positionable intermediate stacker which forms a relatively large stack, the cross-member being pivotally connected to the sheet brake by way of a link p |
| 4813356 |
Clamping device for optionally securing a blanket or a printing plate |
March 21, 1989 |
| 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 |
| 4707902 |
Mechanism for accurate register alignment of a blanket on a blanket or plate cylinder |
November 24, 1987 |
| For the accurate register alignment of a blanket on a blanket or plate cylinder for selected-area, in-line varnishing in a rotary press, clamping devices are provided with registration means each comprising two axially spaced, radially directed register pins which are situated beneath th |
| 4688484 |
Mechanism for the parallel clamping of printing plates on the plate cylinder of printing machine |
August 25, 1987 |
| A quick-action plate clamping mechanism for a plate cylinder of a printing press consists of a pressure strip disposed axially in a recess along the gap in the plate cylinder wherein the recess extends behind the plane of the rear gap wall and parallel thereto, the pressure strip being |
| 4567823 |
Arrangement on multi-color rotary presses for application of liquids to a printing unit cylinder |
February 4, 1986 |
| The dampening unit of a rotary printing press is provided with additional transmission components and a swiveling stop mechanism so that the dampening unit can also apply a varnish having an arbitrary viscosity. For applying dampening solution to the plate cylinder (5) of the rotary pres |
| 4480548 |
Device for varnishing systems to prevent varnish drying in out of paper size side zones of rolle |
November 6, 1984 |
| A roller cleaning device for a varnishing system in a printing press has liquid-supplying means pivotally arranged above the rollers conveying varnish. The spatial distribution of the liquid-supplying means differs over the length of the rollers. The liquid-supplying means are closer |
| 4408525 |
Arrangement for low-vibration sheet transfer between printing units on multi-color printing pres |
October 11, 1983 |
| An arrangement for the transfer and conveyance of sheets between first and second printing units of a multi-color lithographic press which includes a receiving drum in the first printing unit, a feed drum in the second printing unit, impression cylinders associated with the drums, an end |
| 4372244 |
Varnishing units on printing presses |
February 8, 1983 |
| A varnishing unit for applying varnish in a strip of selected width on a sheet carried on the impression cylinder of a printing press distinguished by use of a plurality of adjustable varnish blocking rollers arranged adjacent a fountain roller between a varnish trough and a metering nip |
| 4372204 |
Lithographic sheet fed press having means for clearing a jamming condition |
February 8, 1983 |
| A lithographic sheet fed press having means for clearing a jamming condition in which a plurality of sheets become wedged between the blanket and impression cylinders. The blanket cylinder is journaled in eccentric bushings having respective operating arms. Toggle linkages are respec |
| 4233899 |
Prevention of impact in impression cylinder of sheet-fed lithographic press |
November 18, 1980 |
| A lithographic sheet-fed press having an impression cylinder with a gap formed in the surface thereof and having a cooperating blanket cylinder having bearers at its ends. A pair of auxiliary short bearer members bridge the gap in the impression cylinder, presenting arcuate edges for |
| 4217824 |
Detachable gap covering on cylinders of printing presses |
August 19, 1980 |
| A gap cover of arcuate cross section for covering the longitudinal channel in the cylinder of a printing press, the cover being dimensioned to bridge the gap and held in place by first and second fastening assemblies accommodated below the presented surface. The first fastening assembly |
| 4168831 |
Device for depositing sheets in sheet-fed printing press |
September 25, 1979 |
| A device for use in a sheet delivery mechanism for a printing press for forcibly seating a sheet on a delivery pile notwithstanding the cushion of air below the sheet. The device includes a pair of tube assemblies arranged parallel to one another above the delivery pile symmetrically on |
| 4162652 |
Device for cleaning cylinder bearers on printing presses |
July 31, 1979 |
| A device for continuously cleaning a bearer in a printing press which includes a carrier in the form of a plate pivoted on the frame for the movement toward and away from the bearer. Mounted on the end portion of the carrier, and oriented in a generally axial direction, is a first sc |
