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Class 271/203 - By cyclicly varying conveyor speed


Subclass of Class 271 - Sheet feeding or delivering
Definition: Device provided with means whereby said conveyor or at least
No. of patents: 45
Last issue date: 05/18/2010


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NumberTitleIssue Date
7717420Apparatus for feeding sheets with variable overlap length and sheet arrival control and printing press having the apparatus
An apparatus for feeding sheets in sheet-processing machines includes a transport belt which transports sheets from a first location to a second location. The transport belt can be driven at variable speed by a drive. The speed of the transport belt can be controlle...
05/18/2010
7383016Electrophotographic device capable of performing an imaging operation and a fusing operation at different speeds
An electrophotographic imaging device comprises generally, an image transfer station configured to transfer a toned image to a substrate, a fuser assembly configured to fuse the toned image to the substrate and a transport device configured to transfer the substrate...
06/03/2008
7364158Conveyor apparatus
A conveyor apparatus includes a receiving clearance adjustment mechanism for adjusting the vertical clearance between portions of downstream-side upper belts, the portion being located furthest upstream with respect to the conveyance direction of signatures, and ups...
04/29/2008
7168550Method and device for delivering books in the lying-flat condition
For the purpose of delivering, in the lying-flat condition, book blocks or books which are fed in, standing on their back or on the front cut and at defined timing intervals along their height, from a preceding machine in a transport path, provision is made, accordi...
01/30/2007
7108219Winder apparatus with transfer brush roll
A winder apparatus for winding webs of material into rolls includes a conveyor, and a winding turret with a plurality of rotatably driven winding spindles thereon. The winding turret indexes the winding spindles relative to the apparatus conveyor, with each spindle ...
09/19/2006
7103964Method of manufacturing a circuit for an electrical machine
A method of manufacturing a magnetic circuit for an electrical machine, the method comprising: using a cutting station to cut out at least one strip of sectors that are interconnected by deformable connections; and
09/12/2006
6650436Automatic sheet feed control
A printer in which the speed at which the recording medium is loaded into the printer prior to printing, at which the recording medium is moved through the printer during printing, and at which the recording medium is ejected from the printer after printi...
11/18/2003
6561507Apparatus for decelerating and shingling signatures
A folder apparatus includes a conveyor and knock-down wheel assembly to receive signatures from, for example, a tape system output. The conveyor and knock-down wheel assembly slow down the signatures from the tape system and create a shingled output strea...
05/13/2003
6443448Speed changing device
The invention relates to a device to change the speed of individual flat shipments that are jammed and displaced one behind the other on a two-part conveyance system. In order to carry out any desired speed changes, without subjecting the shipments to pul...
09/03/2002
6092801Mailroom conveyor system with an electric linear device
A mailroom conveyor system for transporting and handling a stream of printed and folded signatures supplied by high speed tapes of a folding apparatus of a printing press. The system includes a plurality of grippers, a rail system for guiding the grippers...
07/25/2000
6068255Document transport apparatus
Document transport apparatus (10) includes at least one pair of cooperating rollers (20A, 20B) for engaging documents therebetween and for defining a first stage (18) of a document transport path (16) for movement of documents therealong, the first stage ...
05/30/2000
6022017Method for handling a small gap order change in a corrugator
Certain parameters in a high speed order change in a corrugator, including a small gap between orders and the relative lengths of the old and new order sheets, require altered order change and discharge routines on the downstacker conveyor system in order...
02/08/2000
5918878Machine for finishing printed sheets
A finishing machine is proposed for printed sheets delivered individually in rapid succession by a reproduction machine such as a printing press or a copier. The machine renders possible the manufacture in a production line in a completely automatic manne...
07/06/1999
5803450Device for conveying flat floppy products
A device for conveying flat floppy products has an inlet conveyor belt with a constant velocity, an intermediate conveyor belt with a periodically changing velocity and an outlet conveyor belt with constant velocity. The intermediate conveyor belt causes ...
09/08/1998
5626336Storage and stacking device for sheets of laminar material
An automatic storage and stacking device for sheets of laminar material, such as corrugated cardboard or the like, comprises a transportation unit which removes the sheets of laminar material from a cutting group, overlaps them and conveys them towards a ...
05/06/1997
5570878Interleaving apparatus for rolled-up segments
Rolls of individual plastic bags are formed on apparatus that overlaps the bags before the bags are fed into the roll to provide a compact roll of individual bags. The apparatus overlaps portions of the bags so that a plurality of bags can be continuously...
11/05/1996
5560595Envelope ejection speed control system and method
A control system and method for ejecting an envelope having: a feeder for feeding the envelope out of the envelope handling device, a sensor for sensing the trailing edge of the envelope, and a microcontroller for controlling the feeder and in communicati...
10/01/1996
5480136Device for depositing sheets
In the case of a device for depositing sheets on a stack table having stack abutments, comprises a conveying system which includes a plurality of endless conveyor belts arranged in parallelism and mechanism to drive the conveyor belts at the same speed to...
01/02/1996
5415389Storage and stacking device for sheets of laminar material
An automatic storage and stacking device for sheets of laminar material, such as corrugated cardboard or the like, comprises a transportation unit which removes the sheets of laminar material from a cutting group, overlaps them and conveys them towards a ...
05/16/1995
5375824Selectable pin spacing on gathering chain
A binding line having selectable pin spacing on a gathering chain includes a gathering section including the gathering chain having a plurality of spaced pusher pins for transporting gathered signatures seriatim therealong to a signature exit end. A stitc...
12/27/1994
5375827Feeding apparatus for metal sheets
A sheet feeding apparatus includes a first feeding device having an endless traction member circulated at a constant speed and a carrier pawl mounted on the traction member for engaging a trailing edge of a sheet to be advanced. The apparatus further has ...
12/27/1994
5348285Hold-down device on handling machines, in particular punching machines, for thin, flat objects in particular sheets of paper
In handling machines, in particular punching machines, operating in discrete steps, for sheets of paper or similar objects, a warping, waving or wrinkling of the sheets occurs during the deceleration movements of the sheets ahead of the delivery station. ...
09/20/1994
5275394Device for forming a train of underlapping articles
A device for the formation of a train of underlapping sheet-like articles and more particularly for the formation of an overlapped stream during conveying sheets cut by a preceding transverse cutter device from a web of paper to a feed table of a paper pr...
01/04/1994
5265863System for slowing continuously arriving sheets before stacking
A succession of sheets are delivered by a main conveyor in a direction at high speed to a braking station and are thereafter piled up by a stacker. A braking apparatus at the station has an endless braking belt having a section of predetermined limited le...
11/30/1993
5265861Sheet braking method and device with downward deflection of sheet ends for shingling
A method and apparatus for the stacking of paper engages the oncoming sheets at their rear ends between clamping elements on upper and lower belts and is so provided that the rear ends are deflected perpendicular to the direction of feed so that the oncom...
11/30/1993
5141221Deceleration device in the folder of a rotary printing machine
The invention relates to a deceleration device for folded products, with which folded products following one behind the other are gripped by decelerable transport devices (6, 7) and conveyed. The oppositely arranged transport devices (6, 7) tracing a path...
08/25/1992
5141219Apparatus and method for separating a stream of lapped signatures into discrete batches
A method and apparatus for separating a stream of signatures into discrete batches includes an infeed conveyor transporting signatures at a constant velocity V1, an outfeed conveyor transporting signatures at a higher constant velocity V2
08/25/1992
5127209Multi-purpose stacker with overlapping material handling devices
A conveyor system is disclosed having two independent conveyor belts which travel along the same path at various speeds. Each conveyor belt has at least one set of material handling platens attached thereto. Product is fed into the space between each pair...
07/07/1992
4887809Endless revolving transport apparatus for piece goods
The transport apparatus comprises an endless guide device extending in a closed path and at which there are guided a number of entrainment elements. These entrainment elements are interconnected by a toothed belt deformed into a substantially wave-shaped ...
12/19/1989
4863154Conveyor system for planar objects
A conveyor system for reducing the speed of double-piece cut banks being fed to a stacker is provided. Cut-blanks are fed in pairs with the spacing between the blanks of the pair being small and the spacing between the pairs of objects being large along a...
09/05/1989
4805890Sheet stacking machine
A machine for handling flat sheets employs a pair of conveyors in series to receive the sheets from a processing machine and to deliver them to a downwardly moving platform to form a stack thereon and to deliver the stack so formed. Both conveyors operate...
02/21/1989
4781368Method of and apparatus for changing the conveying speed of shingled paper products
A method of and an apparatus for changing the conveying speed of shingled paper products after each of the individual products has been seized and accelerated, whereby the products are seized on its upper surface or its lower surface as a result of a cycl...
11/01/1988
4729555Compact high speed stacker
Sheet material 10 is advanced from a reel 11, cut by cutter 14 and then each segment is moved parallel to its cut edges through sewing machines 22, 23 so as to sew the hems of the work product. The finished product is advanced rapidly in its direction of ...
03/08/1988
4645194Method and apparatus for creating a gap in a sheet stream
Method and apparatus for creating a gap in a stream of sheets, and also moving the sheets at a uniform rate onto a take-off conveyor. The function is accomplished by diverting a portion of a conveyor to have it move through a longer path than the original...
02/24/1987
4632381Process and apparatus for transferring a sheet of material from one assembly to another
The invention relates to a process and to an apparatus for transferring a sheet of material. The process is characterized in that: at least two successive conveyors (11, 12) are connected, the second conveyor having a coefficient of adhesion which is higher th...
12/30/1986
4618391Automatic device for bringing into register a tool mounted on a rotary cylinder for processing products in sheet form
Device for bringing into register a tool mounted on a rotary cylinder for processing products in sheet form, such as a tool for cutting out, creasing, or printing sheets of cardboard in a machine for making and printing corrugated cardboard boxes, compris...
10/21/1986
4471955Method and apparatus for developing and handling stacks of web material
This invention relates to a method and apparatus for developing and handling stacks of web material and, more particularly, to such articles as towels (folded or unfolded), tissues, impregnated non-woven sheets and other relatively flimsy webs which are e...
09/18/1984
4341334Apparatus for spacing sheets and moving groups of spaced sheets
A conveyor section advances a ribbon into a cutting station where sheets are severed from the glass ribbon. The sheets are advanced onto downstream conveyor rolls where the sheet is accelerated for a given period of time to space the trailing edge of the ...
07/27/1982
4313600Sheet stacking method and apparatus
A sheet stacking method and apparatus having conveyor belts for feeding overlapping cut sheets of cardboard in a flow to a stacking station, in which in order to form a gap in the flow a second conveyor belt is driven faster than a first conveyor belt and...
02/02/1982
4270879Sheet stacking apparatus
A sheet stacking device includes a plurality of endless belts spaced from one another and rotating at a predetermined speed toward a sheet shipping container mounted at a loading position. A sheet held against the belt by vacuum pulled between the belts m...
06/02/1981
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