Class 271/179 - Screw or helix

Subclass of Class 271 - Sheet feeding or delivering
Definition: Device wherein the member includes a surface that simultaneously
No. of patents: 38
Last issue date: 10/11/2011

Number	Title	Issue Date
8033542	Equipment for storing in an orderly way banknotes and/or papers and the like An equipment (43) for storing in an orderly way banknotes (52) and/or papers and the like, for instance banknotes (52) for an automatic machine (39), provided for the formation of a stack (53). The equipment (43) comprises t...	10/11/2011
6715752	Device for stacking flat postal articles The present invention relates to an apparatus for stacking articles. The articles may comprise mail pieces. The apparatus comprises a base having a top surface. The top surface defines a rake element having extending fingers defining open spaces therebetween. A rece...	04/06/2004
5823738	Method and unit for forming stacks of articles A method and unit for forming stacks of articles, whereby the articles are conveyed on a conveying surface and in a first traveling direction to a pickup station, and are lifted successively in a second traveling direction, crosswise to the first directio...	10/20/1998
5816570	Apparatus for buffering the transport of documents The apparatus of this invention is a buffering device for the transport of documents that comprises four variable pitch screws that have a tapered outside diameter and a tapered root diameter at the input portion of the screw. A upstream screw and a downs...	10/06/1998
5765827	Sorting compartment arrangement for flat items A sorting compartment arrangement for flat items includes a conveying section for conveying the flat items successively in a vertical position. Switches are disposed along the conveying section. A plurality of individual stacking compartments are arranged...	06/16/1998
5667213	Small-size-sheet stacking unit and cleaning sheet therefor A small-size-sheet stacking unit is attached on a printed sheet tray of a printing machine so as to receive printed sheets of small size, and is detached from the printing machine after such sheets are printed. The sheet stacking unit comprises a guide pl...	09/16/1997
5575464	Urge roller for registering bottom edges of flat articles in a stacker An improvement in a stacking system having an urge roller, an input guide, a spring loaded backup paddle, a substantially horizontal surface and a substantially vertical registration wall. The improvement comprising a rib wrapped around the surface of the...	11/19/1996
5547182	Apparatus for feeding distorted documents An apparatus for buffering transport of inked, distorted documents is comprised of an upper deck oriented at an acute angle. The apparatus has a plurality of opposite, parallel, threaded screw conveyers orthogonal to the upper deck. The screw conveyers ar...	08/20/1996
5544876	Printed paper receiving and stacking apparatus for an image reproduction machine An inkjet printer is operative to horizontally discharge successive printed paper sheets printed side up into a specially designed sheet receiving and stacking section of the printer. A spaced plurality of vertically oriented helical drive members dispose...	08/13/1996
5480135	Sheet collating or storage device A device for collating sheets, in which the sheets are offered at an input of the device, which comprises conveyor member which convey the sheets in a circuit arranged between the input and an output of the device, the conveyor member comprising at least ...	01/02/1996
5465950	Paper sheet conveying and arranging apparatus In a paper sheet conveying and arranging apparatus, a low-friction paper sheet guide member (18) is located in a parallel relationship to a paper sheet advancing direction, and a rotating spiral contact (19) having an axis inclined with respect to a horiz...	11/14/1995
5429349	Apparatus for buffering transport of document using conical screw conveyers An apparatus is provided for buffering transport of freshly inked documents. The apparatus has a plurality of opposite, parallel, threaded conical screw conveyers. Each pitch of the screw conveyer creates a drying station for an inked document. As inked d...	07/04/1995
5409206	Apparatus for buffering transport of documents An apparatus for buffering transport of freshly inked documents is comprised of an upper deck oriented at an acute angle with respect to a horizontal plane. The apparatus has a plurality of opposite, parallel, threaded screw conveyers orthogonal to the up...	04/25/1995
5253859	Apparatus and method for stacking sheet-like articles An apparatus and method for stacking a plurality of flat articles on edge, comprising a discharge magazine for sequentially receiving and stacking the flat articles in a stack, the discharge magazine including moveable discharge support belts adapted to s...	10/19/1993
5217218	Dual auger stacking device and control therefor A dual auger stacking device for use with a document sorting and conveying apparatus defining a document path and including a plurality of gates for diverting documents from the path into a preselected document receiving station of a plurality of such sta...	06/08/1993
5186452	Power stacking apparatus A power stacker for collecting delivered articles such as envelopes from a mailing machine is comprised of a support housing having a deck fixably mounted along the housing. A registration wall is fixably mounted to the housing and extending generally per...	02/16/1993
5172909	Secondary pivotal drive stacker roller enabling stacking of small and large documents A secondary pivotal drive stacker roller assembly for a document sorting and conveying apparatus adapted for sorting documents of various lengths, preferably from a primary document path to at least one secondary document path leading to a document stacki...	12/22/1992
5150894	Diverter mechanism for flat document conveyor system A conveyor system for conveying generally flat documents on-edge includes a primary conveyor belt defining a primary conveyor path, and at least one secondary conveyor belt defining a diverter station and having a first reach disposed in juxtaposed relati...	09/29/1992
4974826	Document stacking apparatus Apparatus for stacking a plurality of documents on one edge thereof in vertically disposed position which comprises a movable stacker carriage adapted for movement between a forward and a rear position. An upper stacking screw worm rotatable about a horiz...	12/04/1990
4903955	Document stacking apparatus Apparatus and method for stacking a plurality of documents on one edge thereof. The apparatus comprises a motor-driven revolving hollow helix device into which fed documents are individually injected substantially transversely to the helix axis between co...	02/27/1990
4884795	Document feeder apparatus The invention provides an improved auger conveyor in the magazine section of a document feeder apparatus which is capable of feeding large amounts of documents to a document sorting machine in a rapid and efficient manner. The auger conveyor includes: thr...	12/05/1989
4705266	Sheet convey device A sheet convey device includes a plurality of feed rollers for conveying a sheet in a standing state, and guide plates for guiding the sheet to be conveyed. The device has helical rings, wound on two ends of the feed rollers in different winding direction...	11/10/1987
4657241	Distribution line for flat objects and particularly for letters A device for use in conjunction with a compartmented distribution line for flat articles, such as letters, which arrive in succession over a conveying path. The device comprises a succession of stacking compartments arranged one behind the other to which ...	04/14/1987
4621798	Envelope feeding mechanism for mail sorting machines In a high speed mail sorting machine, a mechanism for feeding envelopes one at a time to a pickoff device such as a vacuum belt system. The envelopes are loaded onto a floor panel which inclines from side to side. A chain conveyor moves the envelope suppl...	11/11/1986
4573676	Sheet material transfer apparatus An apparatus for transferring sheet materials comprises a plurality of externally threaded rods having threads spaced at equal pitches and grooves therebetween. The threaded rods extend parallel to each other and are mounted in a one-sided box-shaped hous...	03/04/1986
4560157	Transport device for individual sheets to be combined into a stack A device for transporting individual sheets to or from a magazine housing containing the sheets in a stack, particularly useful in x-ray installations, includes a threaded rotary screw member disposed within the magazine containing the stack of sheets for...	12/24/1985
4547114	Positive control stacker A stacker for rigid and semi-rigid sheet or pad-like products forming individual stacks thereof of specific count and with the edges of the product in each stack aligned. The stacker comprises at least one pair of multi-thread screws, being mirror images ...	10/15/1985
4518160	Flat article stacking and tray loading apparatus A tray loading apparatus includes an inclined support having a displaceable front part so that the front wall of a tray can be brought into abutment with the front end of a stack carried by the support and to be loaded in the tray after a backing plate su...	05/21/1985
4509739	Apparatus for stacking letter mail An apparatus for stacking sheet-like articles such as envelopes side by side, i.e., horizontally, in the upright state is disclosed. An article urging lever is disposed in the neighborhood of an article supply path, along which an article to be stacked pr...	04/09/1985
4441702	Device for collecting and stacking photographic prints The device comprises a container defining an inlet opening, an input area in alignment with the inlet opening and a stacking area adjoining the input area. A feeding mechanism, such as two pairs of worm conveyors, a pair of frictional rollers, a conveyor ...	04/10/1984
4432540	Mail sorting machine with improved conveyor and envelope separating device A high speed mail sorting machine which includes an improved screw conveyor in the magazine section and an improved pick off device for separating the individual envelopes from one another. The screw conveyor includes four driven rollers having spiral gro...	02/21/1984
4425068	Bundle former for paperboard boxes An improved bundle former for corrugated paperboard boxes in which the timing of the lift mechanisms and the squaring plates is completely independent of the timing of the flexo-folder-gluer. Also, the stacking belt drive roll is mounted near the pull rol...	01/10/1984
4378938	Document stacking device Document stacking device for tags or other documents, which device may comprise counter-rotating helical stacker members, is provided with a gripper mounted thereon for removing the documents from the stacker members. The hopper in which the stacking devi...	04/05/1983
4270747	Document packing system A document packing system for closely packing sorted documents into a pocket of a document sorting system having many pockets includes an auger. The auger is a hollow cylinder with multiple, discontinuous, raised helicies to initially engage documents sor...	06/02/1981
4270910	Apparatus for separating portions of flat material cut-out from a web or sheet The invention provides apparatus for separating portions of flat material cut-out from a web or sheet. First and second grippers respectively, which engage with first and second cut portions of flat material, are provided to travel along and define paths ...	06/02/1981
4252308	Auger jogger assembly An auger jogger assembly for a high speed item sorter pocket receptacle wherein a fixed shaft carries the armature of an electric drive eddy current motor. The fixed nonmagnetic reluctance member of which is a thin cylindrical metallic sleeve-like member ...	02/24/1981
3998141	Batch delivery An apparatus and method are disclosed for receiving a continuous stream of forms at high speed and automatically stacking the forms into discrete batches of accurate count. The forms are first shingled into a uniform and accurate shingle by spiral screws,...	12/21/1976
3995851	Document jogger transport A document feeding apparatus is provided which includes a hopper for holding a stack of documents edgewise, feed means for serially removing documents from the hopper, and a follower or pressure flag for biasing the stack towards the feed means. Augers ar...	12/07/1976

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Class 271/179 - Screw or helix