US3870294A - Apparatus for the extraction of sheets - Google Patents

Apparatus for the extraction of sheets Download PDF

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Publication number
US3870294A
US3870294A US324355A US32435573A US3870294A US 3870294 A US3870294 A US 3870294A US 324355 A US324355 A US 324355A US 32435573 A US32435573 A US 32435573A US 3870294 A US3870294 A US 3870294A
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United States
Prior art keywords
stack
sheets
minor
outlet
height
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US324355A
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English (en)
Inventor
Sigmar Donner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kleindienst GmbH and Co KG
Original Assignee
Kleindienst GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kleindienst GmbH and Co KG filed Critical Kleindienst GmbH and Co KG
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Publication of US3870294A publication Critical patent/US3870294A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H83/00—Combinations of piling and depiling operations, e.g. performed simultaneously, of interest apart from the single operation of piling or depiling as such
    • B65H83/02—Combinations of piling and depiling operations, e.g. performed simultaneously, of interest apart from the single operation of piling or depiling as such performed on the same pile or stack
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C1/00—Measures preceding sorting according to destination
    • B07C1/02—Forming articles into a stream; Arranging articles in a stream, e.g. spacing, orientating
    • B07C1/025—Devices for the temporary stacking of objects provided with a stacking and destacking device (interstack device)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G59/00—De-stacking of articles
    • B65G59/06—De-stacking from the bottom of the stack
    • B65G59/067—De-stacking from the bottom of the stack articles being separated substantially perpendicularly to the axis of the stack
    • B65G59/068—De-stacking from the bottom of the stack articles being separated substantially perpendicularly to the axis of the stack by means of endless elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/063—Rollers or like rotary separators separating from the bottom of pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/60—Loosening articles in piles
    • B65H3/62—Loosening articles in piles by swinging, agitating, or knocking the pile
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K13/00—Conveying record carriers from one station to another, e.g. from stack to punching mechanism
    • G06K13/02—Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier having longitudinal dimension comparable with transverse dimension, e.g. punched card
    • G06K13/08—Feeding or discharging cards
    • G06K13/10—Feeding or discharging cards from magazine to conveying arrangement

Definitions

  • the invention relates to apparatus for the extraction or withdrawal of sheets, such as documents, vouchers, records or tabulating cards and checks, in which the lowermost sheet is extracted from a pile or stack and subsequently separated with simultaneous acceleration of the speed of extraction or withdrawal.
  • An extraction unit by which single sheets withdrawn at the top, the bottomor laterally from a pile or stack of documents or sheets and transferred to a conveying or feeding device are known.
  • An extraction unit of this type may, operate with a conveyor belt having a high coefficient of friction and a counterrunning feed belt having a low coefficient of friction the effect of which is increased by means of a suction or vacuum shoe.
  • a collecting unit for forming a partial or minor sheet stack or pile of an adjustable, constant height is inserted between a processing unit and a stack or pile containing a larger quantity of the sheets, the lowermost sheet being fed from the partial, minor or small stack or pile to the processing unit.
  • the collecting unit comprises a fixed stop contacted by the leading edges of the sheets extracted from a stack and aligning these edges, means for limiting the height of the intermediate or minor stack or pile, and a withdrawal unit acting upon the lowermost sheet, the planes of conveyance of the withdrawal unit associated with the major stack or pile and of the withdrawal unit of the collecting unit advantageously forming an acute angle with opposed directions of feed of the withdrawal units respectively associated with the major stack or pile and with the collecting unit.
  • the construction according to the invention affords the advantage that it is unnecessary to ensure that actually only one or more sheets are extracted from a stack or pile-This advantage results from the fact that the sheets withdrawn are fed initially to the collecting unit which operates in a manner similar to a balance to ensure that only a partial or minor stack or pile of a determined height and determined weight can form therein. It is thus ensured that sheets at the bottom of the partial or minor stack or pile are extracted therefrom singly and subsequently separated. The major stack or pile may thus be replenished with any number of sheets at longer time intervals.
  • the major stack or pile unit is provided above the processing unit and is of a tiltable construction and may be locked in the desired tilted position. This afford the advantage that the stack or pile unit may be swung clear to allow free access to the separating unit for carrying out assembly operations or fitting or for clearing a defeet.
  • the axis of rotation or pivoting of the major stack unit is advantageously provided in the zone of the axis of the leading roller or cylinder of the extraction unit associated with that stack thus facilitating positioning at the most advantageous angle at which the documents withdrawn from the stack may be fed to the collecting unit.
  • a further advantageous embodiment of the invention may be obtained by constructing the limiter used for producing a partial or minor stack or pile (in the collecting unit) of a determined maximum height in such manner as to enable it to serve as a control element by which the withdrawal or extraction unit associated with the major stack or pile is controlled in such a manner as to stop operation of that withdrawal or extraction unit when the height of the partial or minor stack or pile reaches a determined maximum value.
  • the limiter advantageously comprises at least one strap connected to a micro-switch below which strap the partial or minor stack or pile is formed, a break pulse being generated when the strap is lifted or pushed aside. A reliable control of the formation of a partial or minor stack or pile of a constant height is thus ensured.
  • the extraction unit associated with the collecting unit is provided with a least one device, for example one or more noncircular rollers or the like, by which jolts or vibrations acting upwardly upon the minor stack or pile may be generated.
  • a least one device for example one or more noncircular rollers or the like, by which jolts or vibrations acting upwardly upon the minor stack or pile may be generated.
  • the disadvantage of two or more sheets being on the point of leaving the collecting unit is avoided by providing the separating unit with at least two feed elements, such as rollers, acting upon the incoming sheet at different peripheral speeds, and at least one retarding device, such as a roller, a rotating belt, tape or the like acting downwardly upon the incoming sheet in the opposite direction to the direction of feed thereof.
  • at least one hold-down device for example a curved plate, may advantageously be provided downstream of the outlet of the collecting unit, the hold-down device being effective to press the sheet issuing from the collecting unit against the feed element.
  • One of the feed elements and the retarding device are advantageously provided in a manner similar to a pair of feed or drawing rollers but rotating in the same direction and carrying discs which do not contact each other and the radial spacing of which may also be adjustable.
  • FIG. 1 is a diagrammatic side elevation of the extraction unit with documents therein;
  • FIG. 2 is a corresponding plan view along the line C-C of FIG 1;
  • FIG. 3 is a plan view along the line BB of FIG. I;
  • FiG. 4 is a front elevation of detail A in FIG. 1;
  • FIG. 5 is a side elevation of a further embodiment
  • FIG. 6 is a plan view along the line D-D of FIG. 5;
  • FIG. 7 is a front elevation of a separating unit in which the rollers are provided in laterally staggered relation',
  • FIG. 8 is a side elevation of the construction shown in FIG. 7;
  • FiG. 9 is a front elevationofa separating unit with superimposed rollers.
  • the main units shown in the drawings include a major stack or pile unit 29, a collecting unit and a separating unit 31.
  • Main Stack Unit 29 The main-stack unit 29 is diagrammatically illustrated in FIGS. 1, 3 and 4.
  • Two conveyor belts 11 run about rollers 8 and 10.
  • One of the rollers 8 or 10 is driven through an electromagnetic clutch (not shown) which is switched on and off by a microswitch 19 provided in the collecting unit 30.
  • the rollers or cylinders 9, which are not directly driven, serve merely to support the conveyor belts 11.
  • a plate 15 is provided with a bevel at the bottom and with one or more rectangular, small plates or lamellae 16 in the middle or at laterally displaced positions.
  • FIG. 1 shows a large stack or pile of documents or sheets 21 inserted in the unit 29.
  • the conveyor belts 11 are switched on and thus start to move, small piles of documents, that is to say, several superimposed documents or several documents overlapping in the manner of fish scales are conveyed through the slot forming the outlet between the plate 15 and the roller 8 or the conveyor belt 11, into the collecting unit 30.
  • the bevel'of the plate 15 and the rectangular lamellae 16 perform an important function, the bevel ensuring reliable conveyance of documents having imperfect edges, and the lamellae or lamellae 16 limiting the number of sheets.
  • FIG. 4 shows a front elevation of a detail of the plates 15 or 13 and of the lamellae 16 or 14.
  • the whole unit 29 is swingable about the central axis of the roller 8 at pivot 8.
  • the pivot bearings are provided with a frictional device enabling the receptacle or unit to remain in any optional position.
  • a plurality of fixed locking positions may be provided. eg as diagramatically shown at 29a.
  • the unit 29 is adjustable for the following two important reasons: When the separating unit 31 disposed exactly below the unit 29 is clogged or obstructed by paper, or for any other reason, the whole unit 29 may be swung upwards thus affording better access to the parts below it, namely the separating unit 31 or the conveying device.
  • the unit 29 is tilted at the angle substantially determined by the length of the respective documents in such manner that the documents transferred from the unit 29 to the collecting unit 30 run substantially into the gap a of the strap 18 provided on the microswitch 19.
  • the adjustment is not very critical, since the documents are allowed to contact the bottom of the collecting unit 30 before contacting the stop 17.
  • the collecting unit 30, which is diagrammatically illustrated in FIGS. 1 and 2 comprises, among other component parts, the rollers 3, 4 and 5 to which the documents from the stack 29 are fed.
  • the documents contact a stop 17 which may be adjusted to the length of the respective documents.
  • a microswitch 19 is secured at a position below the rear stop 17, preferably to the underside of the stop 17.
  • the switch lever of the microswitch 19 is extended into a wire strap 18.
  • the strap 18 may be made of a variety of metals or of a synthetic resin.
  • the wire strap is so contructed as to project laterally from the stop 17 at an adjustable distance a from the lower, documentsupporting surface.
  • the contact of the microswitch 19 is closed; when the withdrawal operation is switched on, the belts 11 are driven through an electromagnetic clutch (not shown).
  • the documents 21 are thus introduced into the collecting unit 30 at a position below the strap 18 until the minor stack in the collecting unit 30 has attained the height a.
  • the strap 18 is then forced to move clear by subsequent documents 21, thus operating the microswitch 19 whereby the supply of documents is stopped.
  • the microswitch 19 is automatically operated whereby the supply of documents to the collecting unit 30 is re-started.
  • the height a of the stack in the collecting unit 30 is adjustable in order to ensure that a substantially constant weight is applied by the paper to the rollers 3, 4 and 5.
  • the documents 21 are fed by the driven rollers 3, 4 and 5 to a separating unit 31.
  • the roller 5 is constructed as a vibrating roller which is flat on two sides. The vibrating orjarring process has a positive influence upon the separating operation in the separating unit 31 and particularly improves the separation of individual documents 21.
  • Either a single vibrating roller 5, as shown in the drawings, or a pair of rollers similar to the pairs of rollers 3 and 4 may be provided.
  • the rollers are conventionally made of or covered with a material, for example rubber, Vulkolan or the like, which has good paper-gripping properties.
  • the documents 21 leave the collecting unit 30 through a device comprising a plate 13 provided wth a bevel and a lamellae 14 of the kind described in relation to the main stack unit 29.
  • the separating unit 31 comprises essentially rollers 1 and 2 and a hold-down sheet or member 12.
  • the separating unit 31 is diagrammatically illustrated in FIGS. 1, 2, 5, 6, 7, 8 and 9.
  • the rollers 1, which move in the direction of conveyance or feed, constitute the actual extraction or withdrawal rollers. Their peripheral speed corresponds to the peripheral speeds of the rollers 3 and 4.
  • the peripheral speed of the rollers 1, 3 and 4 is, however, below the peripheral speed of the rollers 6 and 7 on the path of conveyance downstream of the rollers l and 2.
  • the rollers 1 may be mounted on a cylinder as shown in FIGS. 7, 8 and 9. The rollers 1 are fixed and thus not adjustable.
  • the rollers 2, which are disposed above the rollers 1, rotate in the opposite direction at considerably lower peripheral speeds, for example only half the speed of the rollers 1.
  • the roller 2 performs the following function:
  • a hold-down plate 12 presses the document 21 disposed above the drawing-off or extraction rollers 1 against the rollers 1 under a light pressure and lifts it off the rollers 2 thus ensuring that the force applied to the document 21 in the direction of conveyance exceeds the force applied thereto in the opposite direction.
  • the document may leave the separating unit 31 without stopping.
  • the holdvdown plate or plates 12 thus have to become operative whenever the feed compartment 30 contains one or more documents 21.
  • the collecting unit 30 contains a normal stack of documents 21 the height of which corresponds to an adjusted value, the documents 21, as a result of their weight, perform substantially the function of the holding-down plate or plates 12.
  • FIG. 7, 8 and 9 show two alternative constructions of separation unit 31.
  • counter-rotating rollers 2 are disposed in the gaps between the rollers 1, the rollers 2 being, moreover, slightly narrower than the rollers l.
  • the hold-down plates 12 are provided to the right and to the left of the outer rollers 1. This is a more advantageous construction than the construction illustrated in FIG. 9, inasmuch as the adjustment of the rollers 2 to the thickness of the paper is less critical than in the construction shown in FIG. 9.
  • the counterrotating rollers 2 are disposed at positions exactly above the rollers l.
  • the plate is provided with recesses at positions above and below the rollers.
  • the hold-down plates 12 ensure also that the upper surface of the document 21 between the rollers l and 2 is contacted not at all or only slightly by the counterrotating rollers and the typed or written matter on the document 21 is prevented from being blurred or erased.
  • FIGS. 5 and 6 show a further construction of the collecting unit 30 and of the separating unit 31.
  • the rollers l, 3 and 4 are replaced by rollers 22, 25 and 26 which drive one or more belts 27 by which the documents 21 are fed to the separating unit 31 and thence to the path of conveyance.
  • the counterrotating rollers 2 are replaced by contrarotating rollers 23 and 24 and a belt 28. As viewed from the collecting unit 30, a V-shaped gap is formed between the belts 27 and 28.
  • the roller 23 is also adjustable in the upward or downward direction.
  • the counterrotating belt 28 may be provided between the belts 27.
  • a plurality of belts 28 may be provided exactly above the belts 27.
  • Belts of this design are particularly capable of ensuring that the documents 21 are held more reliably in position laterally during the extraction and separating operations and also ofensuring a reduced displacement or canting of the documents issuing from the extraction unit.
  • sheet and sheets whenever used in the following claims include record and tabulating sheets and cards, back checks and other documents which may be subject to data processing or similar operation.
  • An apparatus for feeding sheets to a processing unit comprising:
  • a magazine adapted to receive a main stack of sheets of variable height and having a support surface at the bottom of the magazine and an outlet at said surface for passing sheets from the bottom of said main stack in one direction;
  • first feed means for advancing sheets from the bottom of said main stack through said outlet in said direction
  • a further surface disposed below the first-mentioned surface and ahead of said outlet in said direction for receiving a minor stack of sheets, said first surface being inclined at an acute angle to said further surface;
  • an abutment extending generally transversely to said further surface remote from said outlet for intercepting leading edges of sheets fed through said outlet and depositing same upon said further surface in said minor stack with the sheets thereof aligned along said edges;
  • stack-height-detection means on said abutment and responsive to the height of the minor stack on said further surface for controlling said first means to maintain at least the maximum height of said minor stack constant.
  • said first feed means includes a plurality of rollers spaced apart along said first surface, said magazine being pivotal about the axis of the roller proximal to said outlet.
  • stack-height-detection means includes a switch operable to deactivate said first feed means upon said minor stack attaining said maximum height.
  • said second feed means includes at least two elements engageable with a sheet on said further surface for advancing same in said opposite direction, and at least one retarding device engageable with a sheet entrained in said opposite direction and acting thereon in said one direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Conveyance By Endless Belt Conveyors (AREA)
  • Pile Receivers (AREA)
US324355A 1972-01-26 1973-01-17 Apparatus for the extraction of sheets Expired - Lifetime US3870294A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2203626A DE2203626C2 (de) 1972-01-26 1972-01-26 Vorrichtung zur Entnahme von Blättern aus einem Hauptstapel

Publications (1)

Publication Number Publication Date
US3870294A true US3870294A (en) 1975-03-11

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Application Number Title Priority Date Filing Date
US324355A Expired - Lifetime US3870294A (en) 1972-01-26 1973-01-17 Apparatus for the extraction of sheets

Country Status (6)

Country Link
US (1) US3870294A (OSRAM)
JP (1) JPS4886256A (OSRAM)
DE (1) DE2203626C2 (OSRAM)
FR (1) FR2169605A5 (OSRAM)
GB (1) GB1404891A (OSRAM)
IT (1) IT978371B (OSRAM)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098551A (en) * 1975-02-13 1978-07-04 Canon Kabushiki Kaisha Both side copying machine
US4114870A (en) * 1976-07-12 1978-09-19 Brandt-Pra, Inc. Document handling and counting device having guide fingers for facilitating the feeding of curled, folded and creased documents and further having improved outfeed stacker means for facilitating the neat stacking of documents of the aforementioned type
US4134580A (en) * 1977-03-07 1979-01-16 W. F. Hall Printing Company Method and apparatus for hopper loader
US4241909A (en) * 1978-07-21 1980-12-30 Input Business Machines, Inc. Document stacking apparatus
US4273321A (en) * 1978-04-06 1981-06-16 Luther & Maelzer Gmbh Apparatus for feeding conductor plates into a conductor plate tester
US4361317A (en) * 1979-04-14 1982-11-30 Lapp Emden Helmut Process and apparatus for the singling of the sheets of a paper stack
US4544147A (en) * 1982-05-26 1985-10-01 Oce-Nederland B.V. Apparatus for feeding sheets one by one
US4548395A (en) * 1983-02-04 1985-10-22 Donald L. Snellman Microfiche feeder
US4699371A (en) * 1984-11-30 1987-10-13 Eastman Kodak Company Sheet feeder
US5026038A (en) * 1990-05-17 1991-06-25 Mccain Manufacturing Corporation Signature feeder operable with either flat or standing stacks
US5324018A (en) * 1992-03-31 1994-06-28 Eastman Kodak Company Paper transport system
US6105952A (en) * 1996-02-23 2000-08-22 Bowe Systec Ag Stacked-sheet prefeeder
US20030160377A1 (en) * 2002-02-28 2003-08-28 Meckes David A. System and method for monitoring grouped resources
US20080122159A1 (en) * 2006-11-16 2008-05-29 Neopost Technologies Device for automatically loading envelopes
US11639278B2 (en) * 2019-12-23 2023-05-02 Seiko Epson Corporation Media feeding apparatus and image reading apparatus

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT381809B (de) * 1983-01-21 1986-12-10 Jungfer Akkumulatoren Vorrichtung zum vereinzeln von in einem stapel angeordneten plattenfoermigen separatoren, beispielsweise fuer akkumulatoren
DE3442123A1 (de) * 1984-11-17 1986-05-22 Luther & Maelzer Gmbh, 3050 Wunstorf Vorrichtung zum vereinzeln gestapelter platten
US4869486A (en) * 1988-01-19 1989-09-26 R. A. Jones & Co. Inc. Method and apparatus for feeding carton blanks
US4930764A (en) † 1988-12-28 1990-06-05 Pitney Bowes Inc. Front end feeder for mail handling machine
DE19606832C2 (de) * 1996-02-23 1999-04-22 Boewe Systec Ag Vorrichtung zum Erzeugen eines Schuppenstromes mit regelbarer Schuppenstromdicke
DE102006057465B4 (de) * 2006-12-06 2018-07-12 Kolbus Gmbh & Co. Kg Anleger für eine Zusammentragmaschine
CN111302079A (zh) * 2020-02-26 2020-06-19 山东科技大学 电动汽车电池模块堆垛装置

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US2359856A (en) * 1941-07-21 1944-10-10 Addressograph Multigraph Printing machine
US2737388A (en) * 1951-05-26 1956-03-06 Gottscho Inc Adolph Feeding mechanisms for marking machines
US3173684A (en) * 1962-10-31 1965-03-16 Sperry Rand Corp Document feeder
US3191927A (en) * 1963-06-20 1965-06-29 Crown Zellerbach Corp Stacking apparatus and method
US3339917A (en) * 1964-06-10 1967-09-05 Telefunken Patent Separating device incorporating means for selectively conveying one flat article at a time from a separating zone
US3488048A (en) * 1965-06-01 1970-01-06 Lundy Electronics & Syst Inc Document feeder
US3522943A (en) * 1968-03-27 1970-08-04 Donnelley & Sons Co Signature feeder for gathering machine
US3612511A (en) * 1969-06-05 1971-10-12 Edward S Godlewski Feeding mechanism
US3705719A (en) * 1970-09-28 1972-12-12 Xerox Corp Article handling apparatus

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Publication number Priority date Publication date Assignee Title
CH103230A (de) * 1923-01-05 1924-02-01 Scheuner Johann Apparat zum Einlegen von gefalzten Einlegstücken in Druckmaschinen.
DE1159853B (de) * 1958-07-31 1963-12-19 Standard Elektrik Lorenz Ag In eine Hochkantfoerderanlage geschalteter Pufferspeicher
NL256660A (OSRAM) * 1959-10-08
US3776544A (en) * 1968-09-23 1973-12-04 Xerox Inc Automatic loading apparatus

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2359856A (en) * 1941-07-21 1944-10-10 Addressograph Multigraph Printing machine
US2737388A (en) * 1951-05-26 1956-03-06 Gottscho Inc Adolph Feeding mechanisms for marking machines
US3173684A (en) * 1962-10-31 1965-03-16 Sperry Rand Corp Document feeder
US3191927A (en) * 1963-06-20 1965-06-29 Crown Zellerbach Corp Stacking apparatus and method
US3339917A (en) * 1964-06-10 1967-09-05 Telefunken Patent Separating device incorporating means for selectively conveying one flat article at a time from a separating zone
US3488048A (en) * 1965-06-01 1970-01-06 Lundy Electronics & Syst Inc Document feeder
US3522943A (en) * 1968-03-27 1970-08-04 Donnelley & Sons Co Signature feeder for gathering machine
US3612511A (en) * 1969-06-05 1971-10-12 Edward S Godlewski Feeding mechanism
US3705719A (en) * 1970-09-28 1972-12-12 Xerox Corp Article handling apparatus

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098551A (en) * 1975-02-13 1978-07-04 Canon Kabushiki Kaisha Both side copying machine
US4114870A (en) * 1976-07-12 1978-09-19 Brandt-Pra, Inc. Document handling and counting device having guide fingers for facilitating the feeding of curled, folded and creased documents and further having improved outfeed stacker means for facilitating the neat stacking of documents of the aforementioned type
US4134580A (en) * 1977-03-07 1979-01-16 W. F. Hall Printing Company Method and apparatus for hopper loader
US4273321A (en) * 1978-04-06 1981-06-16 Luther & Maelzer Gmbh Apparatus for feeding conductor plates into a conductor plate tester
US4241909A (en) * 1978-07-21 1980-12-30 Input Business Machines, Inc. Document stacking apparatus
US4361317A (en) * 1979-04-14 1982-11-30 Lapp Emden Helmut Process and apparatus for the singling of the sheets of a paper stack
US4544147A (en) * 1982-05-26 1985-10-01 Oce-Nederland B.V. Apparatus for feeding sheets one by one
US4548395A (en) * 1983-02-04 1985-10-22 Donald L. Snellman Microfiche feeder
US4699371A (en) * 1984-11-30 1987-10-13 Eastman Kodak Company Sheet feeder
US5026038A (en) * 1990-05-17 1991-06-25 Mccain Manufacturing Corporation Signature feeder operable with either flat or standing stacks
US5324018A (en) * 1992-03-31 1994-06-28 Eastman Kodak Company Paper transport system
US6105952A (en) * 1996-02-23 2000-08-22 Bowe Systec Ag Stacked-sheet prefeeder
US20030160377A1 (en) * 2002-02-28 2003-08-28 Meckes David A. System and method for monitoring grouped resources
US7048273B2 (en) * 2002-02-28 2006-05-23 Bowe Bell + Howell Company System and method for monitoring grouped resources
US20080122159A1 (en) * 2006-11-16 2008-05-29 Neopost Technologies Device for automatically loading envelopes
US7758037B2 (en) * 2006-11-16 2010-07-20 Neopost Technologies Device for automatically loading envelopes
US11639278B2 (en) * 2019-12-23 2023-05-02 Seiko Epson Corporation Media feeding apparatus and image reading apparatus

Also Published As

Publication number Publication date
DE2203626C2 (de) 1983-03-03
JPS4886256A (OSRAM) 1973-11-14
GB1404891A (en) 1975-09-03
IT978371B (it) 1974-09-20
FR2169605A5 (OSRAM) 1973-09-07
DE2203626A1 (de) 1973-08-02

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