Patents
Patents for B41F 21 - Devices for conveying sheets through printing apparatus or machines (4,769)
02/1995
02/02/1995DE4325033A1 Coupling structure for a reversal mechanism of a sheet-fed printing machine
01/1995
01/31/1995US5385342 Sheet feeder for a sheet-fed printing press and method of feeding sheets therewith
01/31/1995CA2000730C Device for correcting the register of sheet prints in a sheet-fed rotary printing machine
01/26/1995DE4324746A1 Device for locking functional groups
01/25/1995EP0635364A1 Printing switching apparatus for sheet-fed rotary press with reversing mechanism
01/25/1995EP0634975A1 Gripper conveyor for multiple color offset presses
01/25/1995CN2188025Y Toggle clutch
01/19/1995WO1995001930A1 Device for the transport and deposit of sheets in a stacking region of a rotary press
01/19/1995DE4332708C1 Device for conveying sheets without smearing in an offset printing machine
01/18/1995EP0634281A1 Image forming apparatus
01/17/1995CA2015948C Device for sheet smoothing on the impression cylinder in a sheet-fed rotary printing machine
01/12/1995DE4323091A1 Arrangement for monitoring the position of a web edge on a web transporting drum
01/12/1995DE4322416A1 Sheet-conveying device in the sheet feeder of printing machines
01/11/1995CN2187107Y Electrochemical aluminium conveying drive for full-automatic card printing and gold blocking machine
01/04/1995EP0631867A1 Gripper for sheet printing machines
01/03/1995US5377971 Air-flow generating device for a sheet delivery of a sheet-fed printing machine
01/03/1995US5377969 Method and device for separating sheet-type recording media
01/03/1995US5377967 Method and apparatus for lifting printing products off a stack
01/03/1995US5377587 Sheet-fed rotary printing press with inspection-sheet delivery
01/03/1995CA2055586C Device for the smoothening sheets at the impression cylinder in a sheet-fed rotary printing machine
12/1994
12/08/1994DE4318777A1 Device for assisting sheet conveying
11/1994
11/29/1994US5368148 Device for conveying printed sheets in an installation for checking the quality of paper money
11/27/1994CA2122407A1 Device for rigidly connecting a machine element to a structural member movable about its longitudinal axis
11/24/1994WO1994026519A2 Board treatment apparatus
11/23/1994EP0625654A1 Transmission assembly
11/22/1994US5365846 Format-adjustable sheet-turning device with change-over gears on a sheet-fed rotary printing press
11/22/1994US5365845 Method and device for starting and stopping a sheet-turning operation and for format adjusting
11/17/1994EP0624467A1 Sheet transferring apparatus for printing machine
11/17/1994DE4315548A1 Multi-directional shut off slide valve for the suction air of suction grippers on a sheet transfer drum
11/17/1994DE4315541A1 Multi-directional shut off slide valve for the suction air of suction grippers on a sheet transfer drum
11/17/1994DE4315540A1 Device for adjusting the suction gripper position on a sheet transfer drum
11/17/1994DE4315528A1 Device for adapting the format of a sheet transfer drum
11/17/1994DE4315527A1 Multi-directional shut off slide valve for the suction air of suction grippers on a sheet transfer drum
11/17/1994DE4315515A1 Device for adjusting the suction gripper position on a sheet transfer drum
11/17/1994DE4315514A1 Device for adapting the format of a sheet transfer drum
11/15/1994CA2001920C Apparatus for the aligning of front edges of sheets
11/15/1994CA1333079C Paper guide wheel
11/07/1994CA2119813A1 Sheet feeder in a printing machine
10/1994
10/25/1994US5358236 Table cover
10/25/1994US5358233 Sheet delivery in a printing machine
10/25/1994US5357860 Cylinder phase adjustment controlling apparatus for printing press
10/19/1994EP0470204B1 Arrangement for an adjustable sheet turning equipment
10/11/1994US5354046 Paper stacking apparatus for sheet-fed press
10/11/1994CA2035937C Sheet delivery for printing presses or similar
10/05/1994CN1026089C Table of press for supplying of paper
10/05/1994CN1026088C Apparatus for connecting remained paper pile and main paper pile
10/05/1994CN1026080C Vacuum transfer apparatus for rotary sheet-fed printing presses
10/04/1994US5351946 Delivery apparatus for sheet-fed printing press
09/1994
09/22/1994DE4308595A1 Method and device for reducing sheet trailing on the rubber-covered cylinder of an offset printing machine
09/22/1994DE4308276A1 Leiteinrichtung für einen Bogen Guide for an arc
09/14/1994EP0614760A1 Front-edge stop for aligning sheets on a feed table
09/07/1994CN1091695A Thermoprinting die cutting machine with soft transmission of sheet
09/06/1994US5343806 Swivellable pre-gripper of a sheet-fed printing press and method of operation thereof
08/1994
08/30/1994US5341738 Device for transporting sheets within a printing machine
08/24/1994EP0611719A1 Paper ejection device for a stencil printing device
08/23/1994US5339731 Method and apparatus for printing multicolored container body blanks in a single pass
08/09/1994US5335597 Method and device for starting and stopping a sheet turning operation and for format adjusting during sheet transport through a printing press
08/03/1994CN2173158Y Rotary valve for eliminating paper wool of paper feeder
08/02/1994US5333547 Gripper apparatus on sheet-processing machines
07/1994
07/27/1994EP0607538A1 Printing machine with sheet guiding surface
07/26/1994CA2003824C Arrangement for the electrical fuse protection of a clamping device in a sheet guide drum on printing machines
07/19/1994US5329852 Printed sheet monitoring assembly
07/14/1994DE4300266A1 Manufacturing method for clamping faces holding thin sheet material
07/05/1994CA2007787C Sheet guide drum for printing machines for first form or sheet work
06/1994
06/28/1994US5325120 Electrostatic reproduction apparatus having a dielectric ink-phobic imaging member and field-emission write head
06/28/1994US5323892 Apparatus for transferring printed products conveyed in an overlapping stream
06/21/1994US5322012 Method and system for the lateral alignment of sheets
06/14/1994US5320042 Paper web guide roller, particularly for use with a rotary printing machine, to guide a freshly printed paper web
06/14/1994US5320040 Rotary sheet-printing press having a register bar
06/08/1994EP0600183A1 Conveyor gripper for conveying printed products of one or more sheets
06/01/1994EP0599219A1 Delivery apparatus for sheet-fed printing press
06/01/1994DE4239052C1 Sheet guide on printing machine - has grippers on cylinders and drums for sheet guide and format adjustment devices
05/1994
05/31/1994CA2021854C Anti-marking method and apparatus for use with perfector cylinders of rotary sheet-fed printing presses
05/11/1994WO1994009986A1 Device for aligning the front edge of a sheet of paper in a paper sheet processing machine
05/11/1994EP0596372A1 Paper feeding apparatus for sheet-fed press
05/03/1994US5308057 Feed table of a sheet-fed printing press
05/03/1994CA1329225C Transfer roller device for printing presses
04/1994
04/28/1994DE4235917A1 Vorrichtung zum Ausrichten der Bogenvorderkante von Papierbogen in Papierbogen verarbeitenden Maschinen Apparatus for aligning the sheet leading edge of paper into the paper sheet processing machines
04/27/1994CN1085847A Device for alignment of front edges of papers
04/19/1994US5303911 Device for uniting a residual pile of sheets and a main pile of sheets
04/19/1994US5303650 Sheet gripper assembly
04/06/1994EP0590679A1 Sheet-like medium dispensing apparatus
04/05/1994US5299799 Feed table in the vicinity of a side lay
03/1994
03/29/1994US5297789 Device for aligning a leading edge of a sheet
03/22/1994US5295679 Method and apparatus for conveying away flat products supplied in scale flow, particularly printed products
03/17/1994DE4230568A1 Sheet transfer advance gripper for sheet printing machine cylinder - has gripper bearing in guide on swivel arm movable in machine work cycle by a cam drive
03/16/1994EP0586808A1 Methode and device for transferring printed products in a rotary printing press
03/15/1994US5293698 System for temporarily storing printed products removed from a printing machine
03/02/1994EP0584497A1 Safety device in the feeder of a paper sheet processing machine
03/02/1994CN2157867Y Stripper for multicolour printing machine
03/01/1994US5290023 Sheet feeder for sheet-fed press
03/01/1994US5289768 Gripper bar conveyor for multiple color offset rotary printing press
02/1994
02/24/1994DE4227941A1 Printing machine sheet transfer drum - has control disc in drum front side region, tiltable in two opposite bearings
02/23/1994CN1082489A Paper supplying roller in press
02/22/1994US5287809 Method and device for feeding, aligning and holding a sheet on a sheet-processing machine
02/17/1994DE4307712C1 Grip mechanism for sheet-printing press - has control cam for finger in frictional contact with grip spindle and turned on encountering stops
02/17/1994DE4233421C1 Gripper for sheet printing machine - has congruent guide tracks on side wall surfaces of gripper finger in region of screw, each track having roller body locating in gripper retainer
02/10/1994DE4224977A1 Sheet holding system in printing machine turning roller - has ancillary gripper associated with first or second suction cup driving sheet transfer
02/03/1994WO1994002399A1 Paper sheet guiding cylinder for a printing machine
02/03/1994DE4224978A1 Correcting register of colour printing rollers - involves set of linked rods moving rollers and worm drive mechanism to enable irreversible actuation of rods
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