Abstract: There is disclosed a device for orienting a sheet having a rectangular shape into a straight position. A sheet, which is fed forward in a position inclined in one way and then brought into contact engagement at one corner on the leading edge thereof with one of two working surfaces of the device is turned into a straight position by the feeding force acting on the sheet to move it forward and of the force of a working surface of the device acting on that corner to move it in a direction perpendicular to that of the feeding force and away from the other corner on the same leading edge of the sheet.

Abstract: A system is disclosed for registering a sheet in punch press or other apparatus having a control system carrying out a programmed position of the sheet during punching operations, in which a movable locator plate is urged into an advanced position along an axis of movement so as to be displaced when the sheet is moved a fixed distance along one axis. A distance transducer generates a continuously varying electrical signal corresponding to the displacement of the locator plate from its advanced position, which signal is transmitted to the control system to modify the part program in accordance with the actual location of the sheet.

Abstract: An integral sheet stopping, stacking and lateral registration system, in which sequential incoming sheets are fed into a tray and stopped at an edge registration position and also repositioned laterally by lateral sheet repositioning scuffers engaging an edge of the sheets at the edge registration position, with improved protection against sheet edge distortion or damage provided by movable partial sheet stopping surfaces partially shielding the incoming sheet lead edge from full impact with the lateral scuffers but without interfering with the subsequent lateral movement of the sheets by the lateral scuffers. The incoming sheets are fed in and stacked under a stack-floating curved input guide baffle and floating frictional input flapper scuffers feeding and holding an incoming sheet downstream against the lateral scuffers for improved lateral registration.

Abstract: A device which includes a camera arranged above a feed table to simultaneously scan a front edge and a lateral edge of a plate-shaped piece or sheet having a printed area adjacent the edges of the sheet characterized by transmitting an output of the camera to a signal processor and calculating unit to compare the output of the camera to a reference signal to create error signals which are used to operate motors for moving the lateral stops and front stops in accordance with the amount of error signals to correct misalignment of the sheet.

Abstract: A method and apparatus for an improved active sheet registration system which provides deskewing and registration of sheets along a paper path in X, Y and .THETA. directions. Sheet drivers are independently controllable to selectively provide differential and non-differential driving of the sheet in accordance with the position of the sheet as sensed by an array of at least three sensors. The sheet is driven non-differently until the initial random skew of the sheet is measured. The sheet is then driven differentially to correct the measured skew, and to induce a known skew. The sheet is then driven non-differentially until a side edge is detected, whereupon the sheet is driven differentially to compensate for the know skew. Upon final deskewing, the sheet is driven non-differentially outwardly from the deskewing and registration arrangement. A fourth sensor may be provided to measure the position of the sheet after registration with respect to desired machine timing.

Abstract: A dual vacuum belt transport system for compiling copy sheet sets in a compiling tray includes a first vacuum belt that picks up a copy sheet and moves it to a forward registration wall for front edge alignment, and releases it. A second vacuum belt then picks up the copy sheet and moves it to a side registration wall to complete the compiling sequence. Each vacuum belt is angled with respect to a vertical plane in order to drive each copy sheet into a corner formed by the intersection of the forward and side registration walls.

Abstract: A three-side cutting apparatus which cuts a carried-in book at its top, bottom and side.

Abstract: In a machine including driving apparatus and structure for sensing a sheet fed to the machine; an improvement comprising: a rotary timing cam; an actuating member movable into and out of locking engagement with the cam; a source of supply of d.c. power; a first circuit connected across the power supply and including a solenoid and a trip switch actuatable for energizing the solenoid; a second circuit connected across the power supply and including a d.c. motor and a motor switch actuatable for energizing and deenergizing the motor; and the trip switch actuated in response to the sensing structure sensing a sheet fed to the machine, and the driving apparatus causing the actuating member to move out of locking engagement with the cam and actuate the motor switch for energizing the motor to drive the cam when the solenoid is energized.

Abstract: In a mailing machine including a postage meter, wherein the postage meter includes rotary printing structure for printing indicia on a sheet fed to the machine, and the machine includes apparatus for driving the printing structure, wherein the driving apparatus includes a drive gear, the driving apparatus includes a locking member movable into and out of locking engagement with the drive gear, the driving apparatus includes an actuating member for moving the locking member, and wherein the machine includes trip structure for sensing a sheet fed to the machine, an improvement comprising: a source of supply of d.c. power; a first circuit connected across the power supply and including a solenoid and a trip switch actuatable for energizing the solenoid; a second circuit connected across the power supply and including a d.c.

Abstract: A pull guide mechanism for moving a copy sheet transversely of a conveyor board into proper registration in a printing, duplicating or like machine. A drive wheel is rotatably mounted in the conveyor board and a pressure wheel is disposed above the conveyor board for sandwiching a copy sheet therebetween and pulling the sheet into proper registration in response to driven rotation of the drive wheel. A carriage is mounted on the machine for reciprocal movement toward and away from the conveyor board and the drive wheel. A spring biased piston is mounted on the carriage for limited yielding movement relative to the carriage. The pressure wheel is rotatably mounted on the piston for movement with the carriage toward and away from the drive wheel and for gripping a copy sheet between the wheels against the spring bias. A first adjusting device adjusts the position of the piston relative to the carriage and thereby adjusts the dwell time that the wheels grip the copy sheet.

Abstract: A differential motion translating and document drive delivery system wherein the system includes power, a first element for delivery of documents sequentially along a first path, a device for establishing orientation relative to a planar reference, and an element related to the first delivery element for translating the direction of movement of the documents angularly relative to the first path along a second path, the paths being generally perpendicular and hence the second path is substantially parallel relative to the reference.

Abstract: In a mailing machine including a postage meter, wherein the postge meter includes rotary structure for printing indicia on a sheet fed to the machine, wherein the machine includes apparatus for driving the printing structure, wherein the machine includes apparatus for feeding a sheet fed thereto downstream in a path of travel through the machine, wherein the sheet feeding apparatus includes an impression roller rotatably mounted beneath the rotary printing structure, and wherein the impression roller has an inner end and an outer end, an improvement comprising: apparatus for aligning a sheet fed to the machine with the path of travel, the aligning apparatus including a registration fence aligned with the path of travel, the aligning apparatus including an elongate stop lever and a shaft on which the lever is pivotally mounted outboard of the outer end of the impression roller, the stop lever extending into the path of travel for pivoting a sheet fed thereto toward the registration fence, the aligning apparatu

Abstract: A sheet-fed rotary printing machine having an impression cylinder, rotary members movable in accordance with the motion of the impression cylinder, a paper cassette disposed near the impression cylinder for containing a stack of sheets of printing paper, and a feed member for holding each sheet of the printing paper by suction from above to feed it directly to a predetermined position on the impression cylinder. The feed member feeds the printing paper to the outer circumference of the impression cylinder by means of a vertically moving mechanism and a horizontally moving mechanism. Also, the feed member moves in synchronization with the rotation of the impression cylinder by means of a first timing mechanism and a second timing mechanism.

Abstract: This relates to an attachment kit for an offset printing press of the type manufactured and sold by A. B. Dick Company, which attachment comprises a leveling system including a pair of pivoting boards constructed to be mounted in parallel relation on a base board set on the feed table of the press to support two piles of envelopes in side-by-side relation. The vertical leg of a T-shaped guide bar having its cross bar and spacer fastened to the main bar of the press, passes between the two piles of envelopes and projects into a slot in the base board. A pair of backing plates having vertically-projecting members which bear against the rear of the envelope piles, are constructed to be fastened on opposite sides of the main bar of the printing press. This arrangement enables two piles of envelopes to pass through and be printed simultaneously by the press.

Abstract: Apparatus for registering one or more sheets in a registration position defined for example in a corner formed by two edge stops has a sheet support member and a tamping member that engage the edge or edges of the sheet or sheets on the support member. The tamping member is mounted on the end of an arm which is mounted for angular movement about a shaft. On movement of the arm the tamper moves so as to push the sheet(s) into the registration position. The tamping member includes a brush having bristles that engage the edge(s) of the sheet(s).

Abstract: A table top buckle chute fold machine is disclosed in which improved and more reliable squaring of the paper to the folding rolls is accomplished by lightly driving an inserted sheet of paper with a friction roller against a selected one of several deflector assemblies. The deflector assemblies each include a deflector member spaced away from the rollers to direct the advancing edge of the paper inwardly so as to be abutted against the back of a recessed guide groove. An intermittently engaged drive roller causes the squared paper to be forcibly advanced against the groove, causing the sheet to buckle and be nipped between another pair of driven nip rollers, forming a first fold at the location determined by the location of the particular deflector assembly activated.

Abstract: In the feeding of sheet material to a machine such as a tire building former a sheet is first placed on a table and one edge of the sheet is aligned with a first datum line, preferably by tilting the table and supplying floatation air under the sheet. The sheet is then picked up and moved transversely through a predetermined distance by a gripping device to align one edge with a second datum line so as to enable the sheet to be fed in appropriate alignment to a machine.

Abstract: Copy finishing apparatus includes a compiling surface (62) for compiling sheets into sets, a registration device (71) for driving sheets into a registration corner defined by end (69) and side registration stops and a conveyor system (63, 67, 68) for conveying sheets on to surface (62) in a first direction, the surface (62) sloping downwardly towards end registration stop (69) in the opposite direction. Sheets are delivered to the surface (62) beyond the registration device (71) and the slope of surface (62) is such that they slide under gravity beneath the device (71). The apparatus suitably also includes set ejecting mechanism (73, 74) and stapler (72) and the path (63) extends over these also.

Abstract: To increase the operating speed of a printing machine in which sheets are fed from a make-ready table (5) to a printing system (P, G; 2, 3, 65, 63), sheets are fed to the make-ready table in a transport direction and a lateral force is applied to the sheets as they are being fed to the make-ready table, for example by inclined belts (6-9).

Abstract: The present invention comprises a dual tote sorting and stacking apparatus for continuously transporting, sorting and stacking sequentially fed sheets of paper such as from printing, copying and duplicating machinery. The apparatus employs mass airflow type of conveyors for paper transport. A diverter is provided for selectively diverting the sheet to designated receiving trays or, optionally, for expelling the sheet from the apparatus. A jogger is provided for jogging the sheets which are deposited into the trays into individually aligned job stacks. An assembly may also be provided for flipping the sheets as they enter the apparatus or for feeding individual sequentially fed sheets into the apparatus.

Abstract: A loop is formed between upstream and downstream pairs of rollers by driving the downstream pair slower than the upstream pair and/or by a direction changing guide. The downstream pair of rollers is axially movable to bring an in-track edge of a sheet to a predetermined sensed position to cross-track register the sheet. The loop permits cross-track movement of the sheet despite engagement of the sheet with the upstream pair of rollers.

Abstract: An improved device for the automatic feeding of silk screen printing machines with extension platens. The apparatus comprises:a storage magazine for the sheets to be printed, piled flat in a pile;structure associated with the printing platen and comprising a positioning support in an extension of the plane of this platen;apparatus to seize and transfer individual sheets from the pile onto the positioning support;frontal and lateral positioning structure for the sheet placed onto the positioning support; andpositioned sheet transfer apparatus to seize and transfer the sheet from the positioning support to the printing platen.

Abstract: A plain film platform for projection screen apparatus for X-ray apparatus has a platform member, a first fixed guiding strip for a film extending along one vertical side, a second fixed guiding strip extending along a lower side near the opposite vertical side over a small part of the platform member, and a third movable guiding strip extending between the first and second guiding strips and displaceable parallel to the lower second guiding strip.

Abstract: An apparatus for glueing together two different material layers, of which one is intended to form a first cover in a folder, file or the like and the other a second cover and/or a spine in the folder, file or the like, the glueing being carried out in an area where the layers overlap each other, by a glueing device included in the apparatus, said device coating one side of one layer with a glue strip along or close to one edge thereof. The apparatus also includes an aligning means (23, 25), which aligns both layers relative each other so that they overlap each other in an area which is at least as wide as the width of the glue strip, a pressing means (26, 28) pressing both layers towards each other in the area for the glue strip therebetween, and a feed means (6-10, 15-18, 29-32) for feeding the layers through the apparatus.

Abstract: A device for positioning an original in sheet form on the exposure platen of a copying machine, comprising abutment strips which extend parallel to each other at opposite sides of the platen and which are displaceable to and from each other for adjusting them to the width of an original fed between the strips on to the exposure platen. In front of each strip and displaceable therewith is at least one pair of rollers disposed with their axis parallel to the strips. A first roller of each pair being closer to the exposure platen and the associated strip than the other roller of that pair. A flexible belt for pressing an original on to the platen is trained between the platen and the said first rollers of each pair and about said first rollers and in opposite direction over said other rollers and then over the strips towards the frame of the device.

Abstract: In the feeding of sheet material to a machine such as a tire building former a sheet is first placed on a table and one edge of the sheet is aligned with a first datum line, preferably by tilting the table and supplying floatation air under the sheet. The sheet is then picked up and moved transversely through a predetermined distance by a gripping device to align the edge with a second datum line so as to enable the sheet to be fed in appropriate alignment to a machine.

Abstract: The invention relates to apparatus for the lateral registration and registration in the feed direction of sheets which are fed in a sheet stream across a feed table to a sheet treating machine, e.g. a printing press. They stretch out the sheet transversely to the feed direction. The apparatus includes two suction plates arranged at a distance one from another at right angles to the feed direction, which are each respectively drivable in rotation about an axis. By use of suction openings which can be subjected to suction, the respective frontmost sheet of the sheet stream can be grasped in the region of its front edge and moved to bring its side edge to lie against a side stop and to bring its front edge to lie against a front stop. In accordance with the invention, one suction plate is drivable rotatably in a first rotational sense and the second suction plate in the opposite rotational sense.

Abstract: This specification discloses a sheet conveying device for correcting oblique feeding of sheets and conveying the sheets in a predetermined direction of conveyance. The sheet conveying device has first sheet conveying apparatus for conveying sheets, second sheet conveying apparatus provided downstream of the first sheet conveying apparatus with respect to the direction of conveyance, and apparatus for forming a loop between the first and the second sheet conveying apparatus by the conveying force of the first sheet conveying apparatus and thereafter displacing the second sheet conveying apparatus holding a sheet thereon in a direction perpendicular to the predetermined direction of conveyance.

Abstract: A printed circuit board imaging system automatically aligns apertures on a board with reference points established by light beams located outside an exposure unit. The reference points have a known spatial relation to alignment pins in the enclosure. A movable arm engages an aligned board, moves it into the exposure unit and deposits it on the pins.

Abstract: A method and apparatus for aligning and feeding sheets for printing presses having a conveyor for supplying the sheets individually from a feed stack to the front and side lays in a feed table of the press. The method includes the steps of causing the sheets to strike the front lays, drawing the sheets against a side abutment of the side lay, engaging the sheets from below utilizing a vacuum device and then again pressing the sheets against the front lays.The apparatus includes a vacuum device and front and side lays. The vacuum device includes suction arms disposed below the sheets and ahead of the front lays with respect to the direction of the sheet movement. The front lays are movable reciprocably in the direction of the sheet movement while the side lays are movable transversely to the direction of the sheet movement.

Abstract: Multiple simultaneous envelope duplicating apparatus has a windowed feed elevator supplying envelope stacks to an offset duplicator. The elevator has an open frame supporting a pair of spaced apart parallel envelope stack supporting plates. The plates and the frame define windows for receiving in vertically movable relationship, guide members to maintain the envelope stacks upright and in alignment with suction feet at a receiving station of the offset duplicator. A delivery end of the duplicator having a receding stacker also has an open frame supporting a pair of spaced apart envelope stack supporting plates to receive printed envelopes, and define windows for receiving in vertically movable relationship, a second set of guide members to maintain the printed envelope stacks upright. Upright member supporting bases are adjustable so that the guide members can be fitted to bound the sides of different sized envelopes. Bulk envelope chargers have envelope receiving side plates and a back retaining plate.

Abstract: A device for aligning sheets fed by a sheet feeder to a sheet-processing machine includes a suction pull bar located in an aligning region of the sheet feeder, drive device for reciprocatingly displacing the suction pull bar in the plane of a sheet transversely to sheet travel direction through the sheet feeder, air control device through which the drive device is connected to a vacuum generator, positioning device for controlling the drive device the suction pull bar being acuatable for applying suction to the underside of a sheet which has reached the aligning region and after the sheet has been aligned by the leading edge thereof, the suction bar being actuatable for moving the sheet into an in-register side position and having device for applying fresh air thereto for releasing the sheet exactly in the side position simultaneously with a take-over of the sheet-in register by the sheet conveying device and a method for operating the device.

Abstract: An apparatus for in-register feeding a sheet into a sheet-processing machine by conveying the sheet in a given feed direction over a feed table includes front lays engageably by a leading edge of the sheet for aligning the leading edge of the sheet, a pair of said pull-type lays located in the feed table respectively on mutually opposite operator and drive sides of the feed table at a slight spacing from the front lays, both the side lays being movable in the plane of the feed table transversely to the given feed direction of the sheet, a device for driving at least one of the side lays, a device for positioning the sheet having at least one sensor for controlling a displacement stroke of the driven side lay, an air control device connected to a vacuum generator and to both of the side lays for controlling suction air flow to the side lays, at least one of the side lays having a device for applying suction to the sheet until static friction is assured preparatory to aligning a respective lateral edge of the s

Abstract: This specification discloses a sheet aligning device for aligning conveyed sheets by bringing rotatable paddles comprising a plurality of flexible members into contact with two surfaces substantially orthogonal to each other and in which the sheets are aligned by a rotatable main paddle member for imparting to the sheet a draw-in force in the direction of intersection of the two surfaces substantially orthogonal to each other and a rotatable auxiliary paddle member for causing the sheet to be conveyed to one of the two surfaces with a draw-in force weaker than the draw-in force of the main paddle member.

Abstract: The sheet feeding apparatus is used to feed a rectangular sheet of material mounted on a table to a press or the like. A sucking and transferring means for sucking and transferring the sheet are provided to move the sheet until adjacent side edges thereof come to engage clamping means and a stop member for correctly positioning the sheet with reference to the clamping means.

Abstract: The solution according to the invention serves to position textile surface configurations, especially cut parts for pieces of clothing. It is the object of the invention to create an apparatus, with which sewing material parts can be positioned in two coordinates in a simple manner. In the invention, the sewing material is moved against a contact edge of a positioning table in the x-direction by air nozzles, which are alternately guided by sensors. The sewing material edge is clamped by a vertically-adjustable clamping device. The positioning table is then moved in the y-direction until the sewing material edge reaches a sensor.

Abstract: The invention relates to a guide stop for positioning sheet products. It is characterized by the fact that the stop guide is made up of a series of thin strips (9, 10) which, on the one hand, are substantially parallel to each other and, on the other, normal both to the plane P of the sheet (6) and to the corresponding edge (4 or 5) of said sheet (6) which the stop guide (2 or 3) is to position. The invention is used for positioning sheets of paper or cardboard in feed tables, printing or cutting presses or stacking machines.

Abstract: A mechanism for registering sheets, respectively notched at their leading edge and transported by a sheet transport apparatus along a travel path, in both an in-track and cross-track direction at a preselected location in such travel path. The registration mechanism comprises an elongated member supported for movement transverse to its longitudinal axis. Such member is selectively movable along its longitudinal axis to a first position intercepting the travel path adjacent to the preselected location or a second position remote from the travel path. When the member is in its first position, a portion of the member is received in an opening of a receiver located adjacent to the travel path. The opening is oppositely directed to, and generally aligned with, the notch in the lead edge of a transported sheet. Thus when the transported sheet engages the member, the member is urged by the portion of the sheet forming the notch into the opening.

Abstract: Sheet stacking and registration apparatus in which a jogging finger is slidable along an arm which is mounted for movement about a pivot axis between a lowered position and a raised position relatively adjacent the sheets being registered. The jogging finger is resiliently urged away from the stack in the raised position of the arm, while the arm is normally resiliently urged toward its lowered position. Tensioning of a line coupled to the jogging finger first draws the arm to its raised position adjacent the stack and then draws the jogging finger against the adjacent edge of the stack to register the sheets against a remote registration surface. In a preferred embodiment, a common actuating member is used to tension a plurality of such lines to actuate several jogging mechanisms simultaneously.

Abstract: Panel-like members are aligned as they are transferred sequentially from a pick-up station to a discharge station by a primary carriage mounted for linear movement selectively to the pick-up position and to a position adjacent the discharge station. At least one extensible, secondary carriage is carried by the primary carriage and is rotatable about a vertical axis selectively to a transport position and to an aligned position and is movable linearly to an extended position and to a retracted position. The secondary carriage and a pick-up head carried thereby is movable selectively to an upper transport position and to a lower pick-up and discharge position. Linear movement of the primary carriage is stopped prior to its reaching the discharge station with the secondary carriage being movable toward an extended position after movement of the primary carriage is stopped.

Abstract: A sheet registration apparatus and device for registering a sheet on a surface 72 against a registration stop 75 or 74, 75 includes a wiper device 100 having a plurality of resilient blades 101 rotatable about an axis 103 which is generally normal to the surface 72. The blades lie in radial planes through the axis and extend in the direction of the axis towards sheet-engaging tips 106 which are arranged to wipe across the sheet surface over a limited arc of rotation so as to urge the sheets towards the registration stop. To this end the blades are held out of contact with the sheets during part of each revolution by a swash plate 102 having an arcuate opening 114.

Abstract: The positioning device is used in an exposing and developing apparatus for printing forms comprising an exposure table having an exposure position with a forward side, a rear side, and two lateral sides, and a transport device for transporting printing forms onto the exposure table. The positioning device comprises a mechanism for positioning individual printing forms in the transverse direction comprising stop pins mounted on the exposure table on one side of the exposure position, a pressure member mounted opposite the stop members and a pressure mechanism for moving the pressure member laterally of the exposure position toward the stop pins for forcing a printing form laterally against the stop pins.

Abstract: Automatically feeding document pages into registration over the conventional platen of a copier wherein the document pages comprise single page individual sheets and plural page connected unseparated segments of elongate computer forms webs, comprising: feeding the first document page automatically to the platen and registering it in an individual sheet document mode regardless of whether the first document page is an individual sheet or the first page of an elongate computer forms web; automatically sensing whether a computer forms web was so fed to the platen by sensing whether the document length exceeds a preset length and that said document has sprocket holes; and then automatically switching from said individual sheet document mode to a computer forms web document mode for the feeding and registering of subsequent document pages of a computer forms web in response to said sensing of a computer forms web, wherein in said computer forms web document mode the subsequent computer forms web page feeding and

Abstract: Sheet item stacking apparatus wherein an eccentric drive oscillating articulated arm carries a friction wheel at one end, and wherein an angularly disposed cross link pivoted at one end to the arm and at the opposite end to a fixed support causes the oscillating arm to move both forwardly and rearwardly as well as from side to side effective to edge align incoming sheet items within an operably associated item hopper from which the items are "front" removable.

Abstract: Horizontally conveyed flat glass articles are halted and oriented in a precise location. Vertical stop pins removably affixed to a table attached to one end of the apparatus arrest the leading edge of the moving article whereupon pins removably mounted in a pair of transversely movable tables advance toward the article substantially normal to its arrival direction, thus engaging the edges of the article and orienting it in a vise-like manner. Lastly, adjustable pins mounted in a vertically and longitudinally moving table engage the trailing edge of the article and urge it toward the stop pins, thus orienting and aligning the article in a precise position relative to a fixed reference point. The apparatus is particularly adapted to the precise orientation and alignment of pattern cut sheets of glass to be removed from a conveyor platform by a robot.

Abstract: The present invention relates to a suction device for securely holding printing plates in a processing position by sub-atmospheric pressure. The suction device comprises a turnstile arrangement with four suction tables in two mutually perpendicular planes and is connected to a motor which rotates the turnstile arrangement in 90.degree. steps. Four suction chambers are located in a hub part of the turnstile arrangement, these chambers being connected, via pressure lines, to a vacuum source for generating sub-atmospheric pressure. The supporting surface of each suction table comprises suction slots, which communicate in pairs, each of these communicating pairs of suction slots being connected to the associated suction chamber via a common suction passage. Each suction chamber comprises a piston with its piston rod being guided outwardly through an end face of the hub part and carrying a circular plate.

Abstract: Methods of a human operator processing first and second interrelated documents in pairs relative to a processing station provide a first document entry station for receiving a first document from the human operator, and a second document entry station for receiving a second document from the human operator. The human operator separates the interrelated first and second documents from each other and deposits the first document in the first document entry station while depositing the second document in the second document entry station. The deposited first document is transported from the first document entry station relative to the processing station, and the second document is transferred from the second to the first document entry station, for subsequent transport from such first station relative to the processing station.

Abstract: A document feeder for automatically inverting a duplexed original so that the second side may be copied. The inverting mechanism is a turnaround roll located at the exit of the copy station. The inverting mechanism cooperates with rollers located above the document glass for moving documents thereacross. The rollers are inclined at an angle to the direction of paper movement in order to position paper against a side reference edge. When receiving a document from the turnaround roll and moving it in the reverse direction, the inclination of the rollers is removed or altered to a minus angle. Alternatively, a second set of rollers, inclined at a minus angle, are brought into active use when documents are moved in the reverse direction.

Abstract: Documents are inserted into a bin beneath a document stack already in the bin. An air bearing holds the document stack above the floor of the bin. A lifting mechanism lifts the stack along one edge so that a document is driven between the last sheet in the stack and the floor of the bin. A selectively activated drive means positioned on the floor of the bin advances the document into proper registration into the bin. Documents can be fed from the top of the stack simultaneously with the bottom stacking operation.

Abstract: An apparatus for precisely locating a windshield at the take-off end of a conveyor for subsequent removal by a transfer apparatus. The locating apparatus includes a carriage having a lift device for raising the windshield off the conveyor up to a predetermined level. The carriage also is provided with a slide for moving the elevated windshield horizontally in a first direction against a first stop. The carriage is then actuated to move the windshield in a direction normal to the first direction against a second stop oriented 90.degree. from the first stop.