| Patents for B41F 21 - Devices for conveying sheets through printing apparatus or machines (4,769) |
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| 12/18/1990 | US4977828 Transfer roller device for printing presses |
| 12/12/1990 | CN1010759B Arrangement for regulation of rotating condition and reversing of printing machine |
| 12/11/1990 | CA1277610C Electromagnetic clutch-brake positioning assembly |
| 11/27/1990 | US4973040 Paper guide wheel |
| 11/20/1990 | US4972354 Processor-controlled data input and output device |
| 11/20/1990 | US4970955 Gripper finger for a sheet gripper system |
| 11/15/1990 | WO1990013426A1 Delivery apparatus for printing press |
| 11/07/1990 | EP0395921A2 Gripping device for rotary sheet printing machine |
| 11/06/1990 | US4967661 Sheet transfer mechanism for printing press |
| 11/06/1990 | US4967656 Eccentric cylinder for sheet-fed rotary printing presses |
| 11/01/1990 | WO1990012688A1 Arrangement for an adjustable sheet turning equipment |
| 10/30/1990 | US4966354 Method of and machine for gathering paper sheets and the like |
| 10/24/1990 | CN1046307A Adjusting device for size on transfer drum of printing machine |
| 10/17/1990 | EP0392207A2 Register adjusting device for sheet transfer drums of a printing machine |
| 10/17/1990 | EP0392205A2 Rotary printing machine for sheets with several units for printing recto and recto-verso |
| 10/17/1990 | CN1046124A Single sheet rotary machine having several printing units for printing on single side and both sides |
| 09/06/1990 | DE4004461A1 Sheet aligning mechanism for printing machine feed - has electromagnetically operated spring-loaded tilting feed and aligning fingers with common hinged connection |
| 09/06/1990 | DE4004442A1 Sheet aligning mechanism for printing machine feed - has plunger operated spring loaded tilting feed and aligning fingers on common driving arm |
| 08/22/1990 | CN1009298B Gearing for converting rotory motion to cyclic motion |
| 08/14/1990 | US4947748 Sheet gripper on sheet-fed rotary printing presses |
| 08/09/1990 | DE4002563A1 Sheet transfer mechanism for printing machine - is actuated by cam roller system |
| 08/08/1990 | EP0381012A2 Sheet-turning device |
| 08/01/1990 | CN1044257A Transfer cylinder for printing machine of single side or both sides printing of sheet |
| 07/25/1990 | EP0378835A2 Gripper arrangement for sheet-handling machines, particularly offset sheet-printing machines |
| 07/18/1990 | EP0377860A2 Sheet transfer drum for printing machines for first impression printing or for perfecting |
| 07/18/1990 | EP0377857A2 Electrical security device for a clamping device in a sheet transfer drum of a printing press |
| 06/27/1990 | EP0374496A2 Device for registering the fronts of sheets |
| 06/20/1990 | CN1043107A Apparatus for correcting waiting sheets of paper in sheet-fed rotary printing machine |
| 06/13/1990 | EP0372237A2 Device for register correction of the overprinting of sheets in a rotary sheet-fed press |
| 06/05/1990 | US4930414 Sheet fed rotary printing press for performing alternatively single-side multicolor printing or first form and perfector printing |
| 05/30/1990 | EP0370128A1 Side lay control apparatus for sheet-fed printing press |
| 05/30/1990 | CN1008160B Apparatus for adjusting relatively rotation place between one gear and other coaxial gear ring |
| 05/29/1990 | US4928586 Sheet reversing unit for sheet printing press |
| 05/08/1990 | US4922819 Image adjusting apparatus for multi-color printing machine |
| 05/03/1990 | DE3836544A1 Backpressure cylinder with gripper system |
| 04/24/1990 | US4919048 Apparatus for preventing contact of wet ink sheets with printing press delivery mechanisms and for drying said wet ink |
| 04/18/1990 | EP0363662A2 Device for advancing plate-like articles in a rotary printing machine |
| 04/04/1990 | CN1040951A Device for adjusting front stop of press |
| 03/20/1990 | US4909150 Linkage mechanism for driving an oscillating auxiliary gripper of a printing press |
| 03/15/1990 | DE3829626A1 Sheet-fed rotary printing machine for perfecting |
| 03/14/1990 | EP0358076A1 Mechanical sheet guide in the feeding device of printing machines |
| 03/14/1990 | EP0357970A1 Device for adjusting gauges |
| 03/06/1990 | US4905985 Cam operated gripper for a printing press |
| 03/06/1990 | US4905981 Apparatus for changing the position of printed products arranged in an imbricated formation |
| 03/06/1990 | US4905978 Device for correcting the lateral position of a sheet |
| 02/27/1990 | CA1266258A1 Printing apparatus for insertion machines |
| 02/22/1990 | DE3922935A1 Drive mechanism for suction rails for paper sheets - consists of support rail and pull rail, with perforated belt |
| 02/14/1990 | EP0354415A2 Air cushion roller for sheet printing machines |
| 01/31/1990 | CN1039213A Combined sheet-fed rotary printing machine for securities, especially banknotes |
| 01/25/1990 | DE3917098A1 Sheet-guiding device in printing machines |
| 01/24/1990 | CN1038969A Paper gripper in rotary press |
| 01/23/1990 | US4895361 Front guide position adjusting device in a sheet-fed press |
| 01/23/1990 | US4895073 Sheet turn-over assembly |
| 01/18/1990 | DE3916933A1 Machine for printing flat, thin, flexible items, in particular corrugated cardboard |
| 01/17/1990 | EP0351366A2 Combined rotary sheet printing press for papers of value, particularly bank notes |
| 01/17/1990 | CN1038791A Obligatory coupling arrangement and protective mechanism for rotary machine |
| 01/04/1990 | DE3917143A1 Sheet-feeding cylinder |
| 01/03/1990 | EP0348537A1 Apparatus for measuring the thickness of a sheet lying on a surface |
| 12/27/1989 | EP0347611A2 Gripper in sheet-fed rotary presses |
| 12/20/1989 | EP0346619A2 Device for fixing the relative position between a toothed gear and a coaxially toothed ring in a rotary sheet printing machine |
| 12/19/1989 | US4887810 Device for conveying and aligning sheets in sheet-processing machines |
| 11/29/1989 | CN1037484A Arrangement for regulation of rotating condition and reversing of printing machine |
| 11/28/1989 | US4882988 Sheet positioning apparatus for sheet-fed rotary printing machine |
| 11/08/1989 | EP0341228A2 A silk screen printer |
| 11/08/1989 | EP0340452A2 Device for adjusting the angular position of a cylinder in a sheet overturning device, and device for axially shifting an adjusting member for the gripper conversion device of the cylinder in a rotary printing machine |
| 11/08/1989 | EP0340342A2 Grip switchgear for cylinder press |
| 11/07/1989 | US4879513 Device for measuring paper or the like lying on a support |
| 11/01/1989 | CN1005623B Process for straightening sheet |
| 10/17/1989 | US4873926 Clamping gripper with resultant force through contact point |
| 10/17/1989 | US4873924 Flat-bed press and flat-bed printing method |
| 10/05/1989 | DE3902923A1 Sheet-conveying drum for sheet-fed rotary printing machines |
| 09/26/1989 | US4869169 Apparatus for chain transfer conveyance of sheet printed in a press |
| 09/26/1989 | US4869166 Sheet pressing means for a multi-color sheet-fed rotary press |
| 09/12/1989 | US4864929 Resilient sheet gripper for a sheet-fed rotary printing press |
| 08/29/1989 | US4861016 Delivery safety apparatus for sheet-fed printing press |
| 08/29/1989 | US4860651 Skew correcting apparatus for multi-color printing machine |
| 08/22/1989 | US4858910 Conveyor for a sheet-fed rotary press |
| 08/17/1989 | DE3901176A1 Druckmaschine Printing machine |
| 08/17/1989 | DE3901175A1 Druckmaschine fuer schoen- oder schoen- und widerdruck Printing machine for face or perfecting |
| 08/17/1989 | DE3901174A1 Bildtransportdruckmaschine Image Transport printing machine |
| 08/15/1989 | US4856426 Sheet-fed rotary printing machine with printing units arranged in tandem |
| 08/08/1989 | US4854236 Transmission system for forming cyclical motion from rotational motion printing press with counterbalance for torque fluctuation of gripper feed drum |
| 08/08/1989 | US4854231 Sheet-fed rotary printing presses for multi-color printing |
| 08/08/1989 | CA1258272A1 Sheet-delivery device, particularly for small offset printing presses |
| 08/08/1989 | CA1258271A1 Sheet transfer cylinder in rotary sheet printing machines |
| 08/08/1989 | CA1258270A1 Return drum for sheet printing machines, in particular cardboard machines |
| 08/01/1989 | US4852491 Device for the in-register transfer of sheets between the printing units of a multicolor press |
| 08/01/1989 | US4852488 Sheet transfer drum for a printing press |
| 08/01/1989 | US4852487 Method and device for printing images on halves of both sides of sheets |
| 07/18/1989 | US4848231 Method and device for printing images on halves of both sides of sheets |
| 07/18/1989 | US4848230 Remotely controllable adjusting means for elastically deforming a register rail |
| 07/18/1989 | US4848226 Material gripping arrangement for stencil printing machine |
| 07/18/1989 | CA1257621A1 Transfer drum for conveying sheets |
| 07/11/1989 | US4846064 Slip sheet insertion-delivery apparatus for sheet-fed printing press |
| 07/11/1989 | US4846062 Sheet-turning drum in sheet-fed rotary printing presses |
| 07/11/1989 | US4846061 Gripper device for a printing machine |
| 06/27/1989 | US4841859 Side lay control apparatus for sheet-fed printing press |
| 06/15/1989 | DE3840992A1 Device for separating and feeding sheets |
| 06/06/1989 | US4836528 Apparatus for manipulating sheet-like commodities in gathering machines |
| 06/06/1989 | US4836104 Sheet transfer mechanism for a freshly printed sheet |