| Patents for B41F 21 - Devices for conveying sheets through printing apparatus or machines (4,769) |
|---|
| 02/03/1994 | CA2139783A1 Paper sheet guiding cylinder for a printing machine |
| 01/26/1994 | CN1081142A Rotative conveying apparatus |
| 01/24/1994 | CA2098124A1 Web transporting device in rotary printing presses |
| 01/20/1994 | DE4223232A1 Device for controlling opening time of gripper fingers in sheet delivery mechanism - has starting body displaceable along path matching curved or straight path of movement of grippers |
| 01/20/1994 | DE4223231A1 Delivery table for sheet printer with front grippers - has cyclically produced air cushion above front gripper fingers for smooth transfer without contact between grippers and sensitive underside of sheet |
| 01/20/1994 | DE4209341A1 Pneumatic system rotating joint for multiple pressure lines in printing machine - uses coupling piston with flat mating face and concentric coupling slots of differing radii |
| 01/19/1994 | EP0579002A1 Method and device for starting and stopping the sheet reversal during sheet feeding through a printing machine |
| 01/19/1994 | EP0578960A1 Device for the remote control of the grippers of a turning device |
| 01/19/1994 | EP0578891A1 Apparatus for stacking printed sheets from a screen process printing machine |
| 01/13/1994 | DE4233422C1 Sheet-grip mechanism for rotary printing press - has rollers at stop strip ends working against fixed cams to move it up and down |
| 01/12/1994 | EP0578614A1 Device for conveying printed products fed in a shingled stream |
| 01/11/1994 | US5277420 Ball bearing in a conveyor device for paper sheets |
| 01/11/1994 | CA2010495C Sheet-fed rotary printing press with a plurality of printing units for recto printing and recto-and-verso printing |
| 01/06/1994 | WO1994000299A1 Gripper conveyor for multiple color offset presses |
| 01/05/1994 | EP0576810A1 Installation for assisting the controlled transport of copies in the folder unit of rotary printing machines |
| 01/05/1994 | EP0576801A1 Device and method for detecting a sheet |
| 01/05/1994 | DE4221927A1 Sheet delivery device for printing machine - has axially adjustable suction elements coupled in bellows providing sheet braking roller |
| 01/05/1994 | DE4221384A1 Rocking shaft drive for inverting drum in printing press - has two cam-operated gear trains working in opposite directions. |
| 12/28/1993 | US5272978 Apparatus for stretching a cylinder blanket on a sheet transfer cylinder of a sheet-fed rotary printing press |
| 12/22/1993 | EP0574703A1 Device for braking printed products in a delivery bucket wheel of a folding apparatus |
| 12/21/1993 | US5271323 Sheet reversing assembly for rotary press |
| 12/16/1993 | DE4229818C1 Sheet-transfer mechanism in rotary printing press - has transporting trucks parallel or inclined to guide cylinder by offsetting teeth of coaxial chain sprockets. |
| 12/16/1993 | DE4219116A1 Rotary, multicolour sheet printing machine - has sheet conveyors on top side of printing works or work units |
| 12/15/1993 | CN1079565A Device for conveying printed sheets in an instalition for checking the quality of paper money |
| 12/15/1993 | CN1079564A Device for conveying printed sheets in an installation for checking the quality of paper money |
| 12/07/1993 | US5267728 Means for monitoring the side lays and masking or excess draw of a sheet-fed rotary press |
| 12/07/1993 | US5267510 Mechanism for accurate-register sheet transfer and the transport of sheets between the printing units of a multi-color printing machine |
| 12/02/1993 | DE4217851A1 Vacuum-supply system to inverting drum of printing press - has control shaft with axial channels of different lengths in bore in rocking suction shaft |
| 11/30/1993 | US5265866 Device for feeding and further processing printing material in sheet-fed rotary printing presses |
| 11/30/1993 | US5265528 Clutch mechanism for releasing the gears of a double gearwheel drive in a printing press |
| 11/24/1993 | EP0570786A1 Rotating transformer for printing machines |
| 11/23/1993 | US5263415 Sheet guide in the delivery section of a sheet-fed printing press |
| 11/23/1993 | CA1324623C Device for conveying plate-like matters within a rotary printing machine |
| 11/17/1993 | CN2146361Y Automatic centering guide-cloth spreader |
| 11/16/1993 | US5261654 Sheet conveying suction apparatus |
| 11/16/1993 | CA2010509C Device for format adjustment at sheet-guide drums of a printing machine |
| 11/10/1993 | EP0568847A1 Device for conveying sheets in a printing machine |
| 11/09/1993 | US5259608 Sheet delivery at a printing machine |
| 11/09/1993 | US5259309 Adjustable sheet guide assembly |
| 11/09/1993 | US5259308 Sheet-fed rotary offset printing machine |
| 11/09/1993 | CA1324162C Device for adjusting front lays |
| 11/09/1993 | CA1324161C Sheet gripper on sheet-fed rotary printing presses |
| 11/09/1993 | CA1324160C Device for the adjustment of the rotary position of a cylinder of a turning apparatus and for the axial displacement of an actuator for the changeover of the grippers on said cylinder of a sheet-fed rotary printing press |
| 11/04/1993 | DE4214191A1 Gripper for sheet printing press - has rollers at end of gripper fingers in contact with branched curved segment of shaft which compensates for excess pressure on gripper |
| 10/27/1993 | CN1077681A Device for tension of cloth bundling roller of paper press |
| 10/27/1993 | CN1022554C Device for smoothening sheets at impression cylinder in sheet-fed rotary printing machine |
| 10/26/1993 | US5255907 Device for conveying printed sheets in an installation for checking the quality of paper money |
| 10/26/1993 | US5255605 Sheet-gripper device for sheet-fed rotary printing presses |
| 10/20/1993 | CN2144053Y Conveyer for curved surface screen printer and gilding press |
| 10/20/1993 | CN1077417A Table for supplying paper |
| 10/19/1993 | US5253583 Device for positioning printing material for use in a printing apparatus |
| 10/13/1993 | EP0564853A1 Feed table adjacent the side register mark |
| 10/07/1993 | DE4211381A1 Guide device in sheet printing machine - supports sheet guide in immediate vicinity of sheet-guiding cylinder and works pneumatically |
| 10/07/1993 | DE4210432A1 Guide component arrangement in sheet printing machine - involves guide component pivotable in several positions and controlled during pivoting movements by guide curve |
| 10/06/1993 | EP0563746A1 Sheet reversing device in a rotary printing machine |
| 10/05/1993 | US5249791 Arrangement for braking printed products in a fan delivery of a folder |
| 10/05/1993 | US5249521 Device for changing over to single-side printing or perfecting on sheet-fed rotary printing machines |
| 09/29/1993 | EP0562608A1 Cylinder phase adjustment controlling apparatus for printing press |
| 09/29/1993 | EP0562269A1 Turnable connection |
| 09/23/1993 | DE4209067A1 Sheet guide mechanism for printing machines - has blow nozzles in middle of guide plate for air jets orthogonal to flexible surface structure. |
| 09/23/1993 | DE4209006A1 Adjusting unit for sheet guide and steering elements in rotary printing machine - has elements axially movable on common traverse arranged over width of sheet fed rotary printing machine and respectively secured by clamp units |
| 09/22/1993 | EP0561134A1 Device for tensioning a blanket on transfer drums of sheet printing machines |
| 09/22/1993 | CN2142394Y Gearing mechanism of pressing roller for offset press |
| 09/14/1993 | US5243909 Vacuum transfer apparatus for rotary sheet-fed printing presses |
| 09/08/1993 | EP0559616A1 Device for transporting printed sheets in an installation for monitoring the quality of bank notes |
| 09/08/1993 | EP0559615A2 Printed sheet transporting device for a valuable document quality control assembly |
| 09/07/1993 | US5241907 Sheet transport drum with sheet suction holding surface |
| 08/31/1993 | US5240244 Process and apparatus for prestacking in a sheet feeder of rotary printing presses |
| 08/18/1993 | EP0555535A1 Method and device for laterally registering sheets |
| 08/17/1993 | US5236188 Apparatus and method for delivering printed products in a rotary printing press |
| 08/17/1993 | US5235912 Hollow paper guide cylinder with internal reinforcement |
| 08/17/1993 | US5235907 Apparatus for stacking printed sheets for a screen process printing machine |
| 08/04/1993 | EP0553739A1 Sheet guide element adjusting device in rotary printing machines |
| 08/04/1993 | EP0553455A1 Method and device for lifting printed products from a stack |
| 08/04/1993 | EP0553321A1 Device for regulating and/or controlling individual setting elements in the sheet delivery region of a printing machine. |
| 08/03/1993 | US5231927 Electric or electronic sheet control device for sheet-transferring cylinders of printing machines |
| 07/31/1993 | CA2088462A1 Method and apparatus for lifting printing products off a stack |
| 07/22/1993 | DE4201480A1 Einrichtung zum ablegen von bedruckten bogen auf einen stapel Means to store a stack of printed sheet |
| 07/21/1993 | EP0551601A1 Method and device for feeding particularly folded printed products to a further processing station |
| 07/20/1993 | US5228391 Vacuum transfer apparatus for rotary sheet-fed printing presses |
| 07/14/1993 | CN1021557C Single sheet rotary machine having several printing units for printing on single side and both sides |
| 07/13/1993 | US5226642 Delivery pile at a printing machine |
| 07/07/1993 | EP0549884A1 Device for gear train separation |
| 07/07/1993 | CN2137594Y Automatic quantitive conveying and precision positioning device for screen printer |
| 07/07/1993 | CN1073910A Supper soft drum |
| 06/30/1993 | CN1073631A Apparatus for aligning front edge of sheets |
| 06/24/1993 | DE4141591A1 Roller with eccentric rings between constituting rings - has each individual ring eccentrically controlled by several peripherally moving pulleys. |
| 06/17/1993 | DE4140763A1 Sheet guiding system for rotary printing machine - has jet of compressed air positioned in relation to actuation of sheet grippers. |
| 06/17/1993 | DE4140762A1 Sheet guiding system for rotary printing machine - directs jet of compressed air to edge of sheet to deflect it from printing cylinder |
| 06/15/1993 | US5219160 Paper guide wheel |
| 06/15/1993 | CA1319159C Device for correcting the lateral position of a plate shaped piece within an infeed station of a machine used for its processing |
| 06/09/1993 | EP0545862A1 Method and apparatus for printing multicolored container body blanks in a single pass |
| 06/09/1993 | EP0545096A2 Sheet guiding device in the delivery zone of a sheet printing machine |
| 06/09/1993 | DE4139388A1 Method of removal of printed sheets from printer - has suction belt which guides sheets into cassettes |
| 06/09/1993 | CN1072884A Paper guide for use in paper collection area of printer |
| 06/08/1993 | US5217220 Diverter for a printing press |
| 06/07/1993 | CA2081084A1 Sheet guide in the delivery section of a sheet-fed printing press |
| 06/03/1993 | DE4139667A1 Pivot suction system in sheet guide cylinder of sheet rotary print machine - involves coupling mechanism of pivot system ensuring register and accurate sheet turning |
| 06/02/1993 | EP0544111A1 Apparatus for measuring the pressing force of roll and gripping systems |
| 06/01/1993 | US5215014 Positioning system for rotary folding jaw cylinder adjustment elements in a rotary printing machine |