| Patent Number |
Title Of Patent |
Date Issued |
| 5490459 |
Printing press and method for removing ink build-up with sideways web movement |
February 13, 1996 |
| A web printing press and a method of reducing ink build-up on a printing cylinder of a web printing press are described. The web is moved sideways, either by web guides or by moving a web roll stand, during a printing cylinder wash operation to aid in removing ink build-up. |
| 5485992 |
Folder apparatus |
January 23, 1996 |
| A folder apparatus is disclosed which has at least two side-by-side lead-in tape mechanisms having a left lead-in tape and left exit roller and a corresponding right lead-in tape and right exit roller, the right and left lead-in tapes forming a signature passage for delivery of a signatu |
| 5440981 |
Offset lithographic printing press including a gapless tubular printing blanket |
August 15, 1995 |
| A tubular printing blanket for a blanket cylinder in an offset printing press comprises a cylindrical sleeve, a compressible layer over the sleeve, and an inextensible layer over the compressible layer. The cylindrical sleeve is movable telescopically over a blanket cylinder. The com |
| 5341740 |
High speed ink feed mechanism |
August 30, 1994 |
| An offset printing apparatus rotates the plate cylinder steadily with a minimum of torsional interference caused by impact of the reciprocating ductor roll with the vibrator roll. The ductor roll is reciprocated at a rapid rate to impart a rapid succession of torsional shocks to the |
| 5323702 |
Gapless tubular printing blanket |
June 28, 1994 |
| A tubular printing blanket for a blanket cylinder in an offset printing press comprises a cylindrical sleeve, a compressible layer over the sleeve, and an inextensible layer over the compressible layer. The cylindrical sleeve is movable telescopically over a blanket cylinder. The com |
| 5301609 |
Printing unit with skew and throw-off mechanisms |
April 12, 1994 |
| A printing unit (10) includes a frame (22), first and second brackets (50, 54), and upper and lower plate cylinders (14, 18). The first bracket (50) is supported on the frame (22) for movement relative to the frame (22). The upper plate cylinder (14) has an end supported to move with the |
| 5285976 |
Unwinding device for printing presses |
February 15, 1994 |
| An unwinding apparatus supports a reel (60) of web material (22) which is to be unwound and directed into a printing unit (14) having a front/operator side and a rear/gear side. The unwinding apparatus comprises a frame (16) including a rear side part (28) located at the rear side of |
| 5284093 |
Plate cylinder with semi-automatic plate lock up |
February 8, 1994 |
| A rotatable plate cylinder (10) for supporting a printing plate (150) has an open passage (34) and a locking member (26) supported for movement in the passage (34). The locking member (26) is movable inward of the passage (34) to a closed position, and is movable outward of the passage ( |
| 5279195 |
Apparatus for continuously transporting, separating, and changing the path of webs |
January 18, 1994 |
| An apparatus for continuously transporting, separating, and changing the path of webs in machines for processing webs prior to further processing are disclosed. A web consisting of at least one ribbon of material is conveyed by a pair of nip rollers arranged in a first transport path. Wh |
| 5249792 |
Method and device for the continuous formation of a stack of folded products standing on edge |
October 5, 1993 |
| A method for the continuous formation of a stack of folded products standing on edge includes feeding folded products to a stack of folded products standing on edge. The stack is moved forward with a conveyor belt at a speed being matched to the feeding of the folded products to the |
| 5245923 |
Printing press with movable printing blanket |
September 21, 1993 |
| An offset printing unit (10) for printing an inked image on sheet material (30) comprises a rotatable plate cylinder (12) and a rotatable blanket cylinder (14). The plate cylinder (12) supports a printing plate (18) which defines the inked image. A tubular printing blanket (20) is receiv |
| 5241905 |
Printing unit with releasable bearing clamp |
September 7, 1993 |
| A printing unit (10) includes a blanket cylinder (20), a bearing assembly (56) and a door assembly (72). The blanket cylinder (20) carries a tubular printing blanket (36). The bearing assembly (56) includes a bearing housing (58) fixed to the stub shaft (50) on the end of the blanket |
| 5237920 |
Apparatus for supporting a cylinder in a rotary printing unit |
August 24, 1993 |
| A rotary printing press comprises a frame including spaced sidewalls (12, 14), first and second printing cylinders (16, 18), and bearing members (26, 28) for supporting the ends (20, 22) of the first and second printing cylinders (16, 18) for rotation in the sidewalls (12, 14) of the fra |
| 5236188 |
Apparatus and method for delivering printed products in a rotary printing press |
August 17, 1993 |
| An apparatus and method for delivering printed products in a rotary printing press is disclosed. Printed products are gripped by a gripping means on a paper-conducting cylinder and transferred to a fan wheel having a plurality of fan-wheel discs defined by a plurality of fan blades. The |
| 5233761 |
Method and apparatus for the alignment of several, machine units arranged in series |
August 10, 1993 |
| A method for aligning at least one machine unit (36) on a base (42) comprises the steps of installing alignment markers (28) on the parts (12, 14) of a machine unit (36) to be aligned, and correcting the locations of the alignment markers (28) to effect a correction in the locations of t |
| 5224421 |
Method for color adjustment and control in a printing press |
July 6, 1993 |
| A method for color adjustment and control in a printing press wherein the density spectra of individual process colors as well as the density spectrum of the color of paper are stored with given fractional percentages. The density spectra of at least one measuring point per ink zone |
| 5215013 |
Printing blanket with noise attenuation |
June 1, 1993 |
| A tubular printing blanket (20) has a metal sleeve (42) which is receivable over a blanket cylinder (14) in an offset printing unit (10). The sleeve (42) is expandable diametrically under the influence of pneumatic pressure directed against the inner surface (46) of the sleeve (42), and |
| 5178066 |
Speed match ductor assembly |
January 12, 1993 |
| In a printing press, a ductor assembly for transferring ink from a slowly rotating fountain roll to a rapidly rotating ink receiving roll includes a carriage and first and second idler rolls supported in counterrotating engagement on the carriage. In one embodiment, the ductor assembly m |
| 5159878 |
System for moving a plate cylinder relative to a blanket cylinder |
November 3, 1992 |
| An offset lithographic printing unit (10) in a multi-unit printing press (35) includes a first register adjusting mechanism (80) and a second register adjusting mechanism (84). The first register adjusting mechanism (80) changes the surface speed of the plate cylinder (12) relative to th |
| 5138944 |
Method and apparatus for setting respective positions of ink keys |
August 18, 1992 |
| Adjustable ink keys are adjusted to move associated portions of a doctor blade relative to associated portions of an ink roll of a printing unit. Each portion of the doctor blade is moved into contact with the associated portion of the ink roll. Each portion of the doctor blade is then m |
