| Patents for B41F 21 - Devices for conveying sheets through printing apparatus or machines (4,769) |
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| 04/02/1992 | DE4030374A1 Printed sheet smear-preventing guide - has hollow shafts supplied with compressed air inside loose-fitting hose sections |
| 03/25/1992 | EP0476244A1 Gripper finger of a sheet-fed printing machine gripper shaft |
| 03/18/1992 | EP0475125A1 Adjusting device for the angle of phase between a driving and a driven shaft of a chain drive in a sheet-fed printing press |
| 03/17/1992 | CA1297510C Gripper-device for a printing machine |
| 03/12/1992 | DE4028367A1 Sheet feeder in paper processing machines - consists of sheet pick=up piece, with gripper shaft and roller lever |
| 03/12/1992 | CA2049614A1 Adjusting device for changing the phase angle between an input shaft and an output shaft of a chain drive in a sheet-fed printing press |
| 03/11/1992 | CN1015787B Adjusting device fo size on transfer drum of printing machine |
| 02/25/1992 | US5090686 Paper guide wheel |
| 02/18/1992 | US5088404 Delivery apparatus for printing press |
| 02/12/1992 | EP0470204A1 Arrangement for an adjustable sheet turning equipment. |
| 02/11/1992 | US5086698 Device for smoothing a sheet on an impression cylinder of a sheet-fed rotary printing machine |
| 02/05/1992 | CN1015352B Combined sheet-fed rotary printing machine |
| 02/04/1992 | US5085143 Sheet-size multiple-adjustment drive for a sheet-fed rotary printing machine |
| 01/22/1992 | EP0467832A2 Device for transferring single sheets to the offset cylinder of a rotary sheet-fed printing press |
| 01/08/1992 | EP0464361A1 Method and device for controlling the drive motor of a pile lifting device for a sheet-fed printing press |
| 01/08/1992 | CN1057619A Method and apparatus for controlling motor for lifting paper bulk in press |
| 01/02/1992 | EP0463343A2 Printing machine |
| 12/31/1991 | US5076165 Swinging gripper arrangement for sheet-processing machines, in particular, sheet-fed offset printing presses |
| 12/31/1991 | US5076164 Sheet-fed rotary printing press with a plurality of printing units convertible from single-page printing to first form and perfector printing |
| 12/28/1991 | CA2043641A1 Method of and device for controlling the drive motor of a pile-lifting device provided at a sheet-fed printing machine |
| 12/03/1991 | US5069126 Electrical circuit-breaking device for protecting a clamping device of a sheet-guiding drum of a printing machine |
| 11/27/1991 | EP0457955A1 Anti-marking method and apparatus for use with perfector cylinders of rotary sheet-fed printing presses |
| 11/21/1991 | EP0456978A1 Gripper for transporting of products especially of flat products |
| 11/13/1991 | EP0455782A1 Rotary sheet offset printing machine |
| 11/12/1991 | US5063843 Sheet-fed rotary printing machine for producing single-sided multi-color printing or perfector printing |
| 11/06/1991 | CN1055895A Paper-guide arrangement of paper pile for rotary machine |
| 10/30/1991 | EP0453989A1 Screen printer with reversible driven cylindrical support |
| 10/30/1991 | EP0453843A2 Device to control the grippers for rotary sheet printing machines |
| 10/30/1991 | EP0453805A1 Sheet delivery guiding device for a rotary sheet printing machine |
| 10/30/1991 | EP0453790A1 Device for conveying sheets |
| 10/30/1991 | EP0453789A1 Sheet transport drum with a non relocatable ending in an axle box and a relocatable ending in an axle box |
| 10/23/1991 | EP0452721A2 Suction control in sheet transfer drums for multicolour rotary sheet printing machines |
| 10/23/1991 | EP0452698A1 Suction apparatus control in sheet transfer drums in sheet-feed rotary machines for polychromatic system |
| 10/15/1991 | US5056773 Sheet deliverer |
| 10/14/1991 | WO1991016254A1 Sheet feeding device |
| 10/10/1991 | DE4110771A1 Pressure-roller adjustment on grid - comprises toothed belts meshing with sprockets on shaft forming grid hinge axis |
| 10/10/1991 | DE4110309A1 Printing machine transfer drum textile cover - comprises polyester nonwoven clamped by supply and winding rolls |
| 10/09/1991 | EP0450333A1 Sheet delivery apparatus for printing machines or the like |
| 10/08/1991 | US5054765 Sheet stop for a sheet delivery apparatus of a printing press |
| 10/02/1991 | DE4109824A1 Curve-controlled power compensation gear - is for arc acceleration system, having swing device with movement path via one turn of single revolution shaft |
| 10/02/1991 | DE4109409A1 Printer arc acceleration system - comprises swing device whose movement pattern is divided into four equally timed sections and is connected to control gear |
| 10/02/1991 | DE4108482A1 Automatic grab control system - is for paper sheet accelerator and has circular cam segment |
| 09/25/1991 | CN1014039B Paper gripper in rotary press |
| 09/24/1991 | US5050500 Sheet transfer web |
| 09/24/1991 | US5050499 Arrangement for correcting registration in a multi-color rotary sheet printing press |
| 09/17/1991 | US5048815 Gripper device on sheet-fed rotary printing machines |
| 09/17/1991 | US5048362 Device for tensionally connecting a fixed gearwheel and an adjustable gearwheel on a cylinder of a turning apparatus in a sheet-fed rotary printing press and, more particularly, to such a device which is electrically safeguarded |
| 09/03/1991 | CA1288446C Sheet gripping apparatus |
| 08/27/1991 | US5042384 Anti-marking method and apparatus for use with perfector cylinders of rotary sheet-fed printing presses |
| 08/27/1991 | US5042378 Combined sheet-fed rotary printing machine for securities, especially banknotes |
| 08/21/1991 | EP0442265A1 Clamping device for an axial movable actuator for the reversal of the gripper with a sheet-fed rotary letterpress |
| 08/20/1991 | US5040460 Sheet register adjusting assembly |
| 08/14/1991 | CA2034583A1 Feed table of a sheet-fed printing machine |
| 08/14/1991 | CA2034558A1 Clamping device for an axially displaceable actuator for gripper changeover on a gripper cylinder of a sheet-fed rotary printing press |
| 08/06/1991 | US5036948 Sound absorption device or muffler for blow nozzles |
| 08/06/1991 | CA1287255C Sheet transport arrangement for printing machine |
| 08/01/1991 | DE4101847A1 Cam driving vibratory feed - has lever and roller bearings aligned on straight lines passing through cam bearing |
| 08/01/1991 | DE4101823A1 Printing press gear train - has gear taking up backlash in bearing sliding in frame |
| 08/01/1991 | DE4101813A1 Printing press vibratory feed - has four bar linkages with common driven slide is sliding bearing |
| 07/24/1991 | CN1013262B Device for adjusting front stop of press |
| 07/24/1991 | CN1013261B Apparatus for correcting waiting sheets of paper in sheet-fed rotary printing machine |
| 07/23/1991 | US5033732 Device for aligning leading edges of sheets |
| 07/23/1991 | US5033379 Device for adjusting a sheet format on a sheet-guiding drum of a printing machine |
| 07/16/1991 | US5031531 Device for adjusting the rotational position of a cylinder of a turning device in a rotary printing press and for axially displacing an adjusting member for a gripper change-over on the cylinder |
| 07/09/1991 | US5029844 Device for adjusting front lays |
| 07/09/1991 | US5029524 Sheet transfer device for a printing machine |
| 06/25/1991 | US5026045 Sheet-guiding drum assembly for sheet-fed rotary printing machines |
| 06/25/1991 | CA1285165C Single-sheet printer paper and a method for its use |
| 06/18/1991 | US5024432 Sheet transfer device for a printing machine |
| 06/13/1991 | WO1991008109A1 Rotary sheet offset printing machine |
| 06/06/1991 | DE3940019A1 Bogenrotationsoffsetdruckmaschine Sheet-fed rotary offset printing machine |
| 06/05/1991 | EP0429743A2 Sheet delivering device |
| 05/28/1991 | CA2018402A1 Sheet deliverer |
| 05/21/1991 | US5016529 Sheet-fed rotary printing press for multi-color printing |
| 05/08/1991 | EP0425913A2 Sheet processing printing machine for multi colour printing |
| 05/08/1991 | CN1012566B Transfer cylinder for printing machine of single side or both sides printing of sheet |
| 04/25/1991 | DE3935372A1 Printed sheet deposition mechanism for collating machine - has gripper mechanism, whose peripheral velocity is controllable for stop phase for sheet release |
| 04/23/1991 | US5009160 Polycarbonate film bonded to the surface of a cylinder having an ink repellent silicone coating on matte finished surface |
| 04/16/1991 | US5007342 Air cushion drum or sheet-fed printing presses |
| 04/02/1991 | US5004221 Device for conveying plate-like matter within a rotary printing machine |
| 03/22/1991 | CA2023805A1 Sheet-guiding foil as dressing for backpressure cylinders and sheet-transfer cylinders in sheet-fed offset printing presses for perfecting |
| 03/20/1991 | EP0417497A2 Transfer drum in rotary presses |
| 03/19/1991 | CA1281591C Device for safeguarding a rotary printing machine |
| 03/13/1991 | EP0416390A2 Transfer drum |
| 03/07/1991 | DE4023615A1 Sheet-guiding cylinder for rotary printer - has hinged flaps to remove sheet from cylinder |
| 03/05/1991 | US4997180 Sheet feeder for use in sheet-fed printing press |
| 02/27/1991 | CN1011768B Obligatory coupling arrangement and protective mechanism for rotary machine |
| 02/21/1991 | DE3935219C1 Paper sheet grip in printing machine - has cam compressing springs to achieve required degree of resilience |
| 02/19/1991 | US4993275 Cam mechanism for periodically swiveling a swivel device |
| 02/14/1991 | DE4022135A1 Multicolour rotary printing machine - has sheet passing correction mechanism with adjusters in drive gears of sheet transfer cylinders |
| 02/13/1991 | EP0412720A2 A method of and apparatus for printing on metal sheets |
| 02/13/1991 | EP0412236A2 Transfer roller device for printing presses and fabric material therefor |
| 02/13/1991 | CN2071127U 印刷机 Presses |
| 02/12/1991 | CA1280133C Sheet transfer cylinder between the printing units of a rotary printing machine |
| 02/12/1991 | CA1280010C Apparatus for adjusting the relative rotational position between a gear-wheel and a ring-gear mounted equiaxially |
| 01/09/1991 | CN1048353A Sheet spread device on pressure roll of rotary press |
| 01/02/1991 | EP0405166A2 Device for smoothing the sheets on the impression cylinder of a sheet-fed rotary printing machine |
| 12/27/1990 | EP0403754A2 Device for adjusting the lateral and longitudinal register for a registering drum of a rotary sheet printing machine |
| 12/27/1990 | EP0403723A2 Eccentric cylinder for sheet-fed rotary printing presses |
| 12/19/1990 | EP0402615A2 Sheet gripper for sheet working machines |