US3025052A - Sheet feeding device - Google Patents

Sheet feeding device Download PDF

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Publication number
US3025052A
US3025052A US762790A US76279058A US3025052A US 3025052 A US3025052 A US 3025052A US 762790 A US762790 A US 762790A US 76279058 A US76279058 A US 76279058A US 3025052 A US3025052 A US 3025052A
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US
United States
Prior art keywords
drum
sheets
sheet
vacuum
hopper
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
US762790A
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English (en)
Inventor
Gutteling Jan
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.)
International Business Machines Corp
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International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
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Publication of US3025052A publication Critical patent/US3025052A/en
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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
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/54—Pressing or holding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/08—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device
    • B65H1/16—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device comprising pneumatic or hydraulic means
    • 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
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/10—Suction rollers
    • 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
    • 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
    • B65H3/52—Friction retainers acting on under or rear side of article being separated
    • 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
    • G06K13/107—Feeding or discharging cards from magazine to conveying arrangement using pneumatic means

Definitions

  • one such known device provides a rotating drum with a vacuum nozzle for picking sheets from a feeder bin or hopper. Positioned adjacent the leading edge of the sheet is another vacuum nozzle to act on the leading edge of the sheets. In this arrangement, if more than two sheets are picked by the rotating drum, the vacuum nozzle at the leading edges will only be able to withhold one of the sheets from passing and the other sheets will jam the feed. This would be due to the bottommost sheet covering the ports on the vacuum nozzle at the leading edge of the sheets and leaving no other means to withhold the inbetween sheets.
  • a rotating vacuum drum is used to pick sheets.
  • the arrangement is used with photographic equipment to separate a sensitized sheet from an original sheet.
  • the two sheets are passed along on a feeder belt and passed between a rotating vacuum drum and a stationary vacuum chamber. Since the sheets stick together, the drum pulls the sensitized sheet away from the original sheet and passes it into a container, with the original sheet passing over the vacu um chamber by the feeding belt into another separate chamber.
  • the feeder drum does not deliver all of the sheets to a single container, but rather, the sheets are separated to pass into separate containers.
  • the machine is not capable of withholding more than two sheets from passing over the stationary or rotating drum so that the drum can thereafter pick the topmost sheet of the remaining sheets.
  • a vacuum drum is provided to pick sheets from a hopper, which sheets are separated by a blast of air from an adjacent chamber.
  • the sheets are separated prior to being picked and no separation means is provided after they are picked. Further, separating sheets by merely a blast of air without entrapping the air between the sheets is unreliable.
  • I provide a rotating vacuum drum moving in the direction of transport of the sheets, which drum is positioned opposite the leading edge of the first sheet in the stack that is to be carried off, and stationary vacuum chambers positioned to either side of the rotating vacuum drum.
  • the vacuum drum contain slots moving over a vacuum chamber which is positioned at the inside or near the leading edge of the stack, other means, such as an endless belt with apertures for moving over a vacuum chamber could also be used.
  • vacuum ports on the stationary vacuum chamber are arranged in such a manner as to provide a. graduated attraction to the sheets and tend to fan out the extra sheets so that they can thereafter be picked up one at a time by the vacuum drum.
  • FIG. 1 is a sectional view of the rotating drum and vacuum chambers arranged to deliver single sheets.
  • FIG. 2 is a top view of the vacuum drum and vacuum chamber showing the relative position of the slots on the drum and the apertures in the stationary vacuum chamber.
  • FIG. 3 is an enlarged view of FIG. 1 showing the position of the sheets when more than two sheets are picked up by the vacuum drum.
  • sheets are shown stacked in a hopper 1, provided with a movable pressure plate 2 for continually urging the sheets upwardly.
  • the movable plate 2 is attached to a piston 4 by means of a connecting rod 3 so as to generally urge the movable plate upwardly.
  • a control valve 5 is provided so that air can be admitted through the conduit 5' to provide compressed air which can act on piston 4 to tend to maintain it in its upward position.
  • the control valve 5 is operated by levers 6 which are connected by a cross bar 6' (FIG. 2) which carries freely rotatable rollers 7.
  • the levers 6 are fixed to the outer part of the valve by welding or the like so that the lever 6 can rotate the outer part of the valve around the inner part.
  • the inner part is provided with ports for the inlet and outlet lines for compressed air.
  • the outer part contains ports which are so positioned that when the rollers '7 are in a low position the appropriate ports are so aligned that compressed air is admitted under the piston 4; and, with the rollers 7' in a high position, the appropriate ports are so aligned that the space under the piston is connected with the atmosphere.
  • the control valve 5 In the normal operating position, which is best suited for the feeding of sheets from the hopper, the control valve 5 is closed so that no compressed air is feeding into or out of the chamber below the piston 4.
  • annular drum 8 of tubular cross section is positioned above the paper stack at a sufficient distance to most efliciently pick the sheets.
  • the drum rotates clockwise and is driven by means of a belt 17, running over pulley 18, which is secured to the drum.
  • the drum 8 is provided with through slots 14 (FIG. 2), which are inclined at an angle of approximately 15 to the axis of the shaft so as to just extend beyond each other.
  • rollers 11 and rollers 7, rotatable on fixed shafts 10' and 6 are provided.
  • the front wall 11 of hopper 1 extends to a point at a smail distance from the drum and together with the drum constitute a throat for the sheets. Also, the front wall is slightly bent to assist in guiding the sheets.
  • the front wall 11 of the hopper 1 is provided with a recess which is substantially the width of the drum. Through this recess air can flow into the tapered space between an attracted sheet B and the sheets left behind. This facilitates separation of the attracted sheet from the other sheets. Separating can be improved further by blowing air into the space D by a blower (not shown).
  • the chambers 12 are connected to a source of vacuum 12.
  • the vacuum chambers 12 are also spacedly positioned from the periphery of the drum a sufiicient distance to form a guide path for the sheets that are attracted by the drum.
  • the periphery of the chambers 12 is curved to follow the periphery of the drum 8, Furthermore, the chambers 12 are positioned immediately following the recess 15 to pick up any extra sheets as they pass over the front wall of the hopper.
  • the curved surfaces of the chambers 12 which are adjacent the periphcry of the drum are provided with apertures 16, some of the apertures 16 being arranged to form a Tshaped pattern with the apertures 16.
  • the vacuum chambers 12 are partially coextensive with the chamber h in the drum 8 so that suction through the apertures 16' opposes the suction through the slots 14 in the drum 8.
  • the position of the chambers 12 and their apertures 16 together with the width of the slots 14 are so selected that when the drum 8 attracts and conveys a single sheet from the stack, the suction exercised by the apertures 16 in the stationary chambers 12 is insufiicient to draw it from the drum or to delay a sheet taken along by the drum. To prevent damage to the leading edge of a sheet, the apertures 16 are small and round.
  • the sheet taken along by the drum is guided between two pairs of conveyor belts 13 mounted on either side of the drum (FIGS. 1 and 2), which are designed to have a higher velocity than the circumferential velocity of the drum.
  • Sheet 3 is then carried over sheet C by some of the slots 14 n moved sufficiently along to cover more of the apertures in chambers 12 where it is then arrested.
  • sheet B may be attracted to the drum 8 before sheet A has passed entirely on its way.
  • the timing belts 13 move at a greater speed than the speed of the periphery of the drum 8, sheet A will be pulled away from the leading edge of sheet B.
  • the apertures 16' in chambers 12 exert sufiicient suction so as to hold the bottommost sheet C, and the remaining attracted sheets fan out over the bottommost sheet and are held by the remaining apertures 16 so that even though the first sheet C is first in being held by the apertures 16' in chambers 9, it is the last to be picked by the drum 8 for feeding to the feed belts 13.
  • either thin sheets or cards can be carried off and fed one at a time at a speed of at least 1000 cards per minute.
  • the sheets can be of different thicknesses and stacked promiscuously and still be carried off.
  • this invention also cover an arrangement in which the sheets are carried off from a hopper that feeds the sheets from below instead of above as shown in FIG. 1. This can be accomplished by rotating FIG. 1 clockwise, and omitting the servo mechanism and providing in lieu of the rollers 6 and 7 a stationary bottom, extending partially across the hopper 1 from the back wall to the vicinity of the drum. This will still enable the vacuum to draw the sheets onto the drum.
  • a rotary drum adjacent the hopper and having concentric inner and outer surfaces
  • a stationary member within said drum having an arcuate surface concentric with and wiped by said inner surface as the drum rotates, said member having a vacuum chamber opening through the arcuate surface intermediate its ends
  • said drum having a plurality of through openings, different ones of which successively register according to a constant time sequence with said chamber as the drum rotates, for picking a sheet off the stack and attracting it directly to said outer surface and advancing such sheet along a predetermined feed path
  • stationary means providing suction ports spaced at different distances downpath of the pick-up point of the drum openings and exerting a suction force opposing and of lesser magnitude than the suction force exerted by vacuum in the vacuum chamber acting through the then registered openings, said drum normally picking successive single sheets off the stack and advancing them serially past the suction ports, those suction ports nearest the hopper being of greater effective area than those remote from the
  • a device for feeding sheets successively from a stack in a hopper the combination of a rotary annular drum adjacent the hopper and of substantially narrower width than and longitudinally aligned with the sheets; a stationary sector member within said drum having an arcuate surface concentric with and wiped by the inner surface of said drum as the drum rotates, said member having a vacuum chamber opening through its arcuate surface intermediate the ends thereof; said drum having a plurality of through openings which successively register with said chamber as the drum rotates for picking a sheet off the stack and attracting it directly to said outer surface and advancing such sheet along a predetermined feed path; and stationary means spaced at each axial side of the drum and providing suction ports spaced at diiterent distances downpath of the pick-up point of the drum openings, said ports exerting a suction force acting near the side edges of the sheet and in opposition to and of lesser magnitude than the suction force exerted by vacuum in the vacuum chamber acting through the then registered openings, said drum normally picking successive single sheets off the stack and
  • openings through the drum are in the form of equally spaced slots each extending at a uniform predetermined angle to the axis of the drum, said angle being of such magnitude that any plane passing through the drum axis will pass through the leading and trailing end portions of adjacent slots.
  • a device for feeding sheets successively from a stack in a hopper the combination of a rotary drum adjacent the hopper and having concentric inner and outer surfaces; a stationary member within said drum having an arcuate surface concentric with and wiped by said inner surface as the drum rotates and having a vacuum chamber opening through said arcuate surface; said drum having a plurality of through openings successively exposed to the vacuum chamber as they rotate therepast for picking a sheet off the stack and attracting it directly to said outer surface and advancing such sheet along a path, stationary means providing suction ports spaced progressively at different distances downpath from the pick-up point of said drum and exerting a suction force on the sheets opposing and of lesser magnitude than that exerted by vacuum in the vacuum chamber acting through such exposed openings, and take-away means disposed downpath of the ports and less than one sheet length from the pick-up point of the drum for accelerating a sheet ad vanced thereto by the drum to strip it from the drum,
  • suction ports being eifective in event a plurality of sheet stick and are moved toward said ports by said drum to retard advance of all sheets except that leading one in physical contact with the drum so that said one sheet will he slid relative to the remaining sticking sheets and advanced to the take-away means, whereupon said drum will fully attract the sheet adjacent said one sheet and advance same as soon as said one sheet is taken away from the drum by said take-away means.
  • a rotating annular drum having a plurality of openings extending generally radially therethrough
  • a stationary member Within the drum having an arcuate surface wiped by the inner surface of the drum as the latter rotates, said member having a cavity intermediate the ends of the arcuate surface and forming part of a vacuum chamber with which different ones of said openings successively reg ister periodically as the drum rotates thereby to cause successive sheets to be picked from the stack by attraction directly to the then registered openings for advancement by the drum through a throat
  • stationary means spaced slightly from the drum and cooperating therewith to define the throat
  • said stationary means providing suction ports opening through its throat-defining surface and spaced progressively at difierent distances downpath from the pickup point of the drum and exerting a suction force opposing, and of lesser magnitude than, the suction force exerted by the vacuum in the vacuum chamber acting through the then registered openings, such that if a plurality of sheets stick and are concurrent

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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)
US762790A 1958-02-25 1958-09-23 Sheet feeding device Expired - Lifetime US3025052A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL849797X 1958-02-25

Publications (1)

Publication Number Publication Date
US3025052A true US3025052A (en) 1962-03-13

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US762790A Expired - Lifetime US3025052A (en) 1958-02-25 1958-09-23 Sheet feeding device

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US (1) US3025052A (en))
DE (1) DE1118810B (en))
FR (1) FR1225119A (en))
GB (1) GB849797A (en))
NL (1) NL225276A (en))

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3253824A (en) * 1964-11-18 1966-05-31 L & L Mfg Inc Apparatus for separating pieces from a stack, and the like
US3330555A (en) * 1962-04-24 1967-07-11 Plastic Coating Corp Pneumatic sheet feeding platen and supply magazine
US3384366A (en) * 1966-02-07 1968-05-21 Lyle V. Dutro Outfeed mechanism
US3431139A (en) * 1965-07-21 1969-03-04 Azoplate Corp Process and apparatus for successively withdrawing individual articles from a stack
US3445106A (en) * 1966-06-24 1969-05-20 Vidosa Sa Apparatus for receiving upon an elevationally displaceable table a stack of flat material
US3455274A (en) * 1964-11-13 1969-07-15 Beloit Corp Sheet feeder
US3466983A (en) * 1964-10-23 1969-09-16 Jagenberg Werke Ag Method of and apparatus for inserting marking strips into stacks of sheets
US3655183A (en) * 1970-07-13 1972-04-11 Xerox Corp Sheet feed apparatus
US3938799A (en) * 1972-10-24 1976-02-17 Hydrabind, Inc. Signature arranging device and method
US3976291A (en) * 1973-11-21 1976-08-24 G.A.O. Gesellschaft Fur Automation Und Organisation M.B.H. Arrangement for separating sheets of paper and the like
US4030723A (en) * 1975-12-15 1977-06-21 Pitney-Bowes, Inc. Vacuum-controlled, sheet-material separator and feeder system
JPS5656440A (en) * 1979-10-08 1981-05-18 Toshiba Corp Paper sheet transfer device
JPS5661243A (en) * 1979-10-25 1981-05-26 Toshiba Corp Conveyance device for sheet
JPS5751632A (en) * 1980-09-12 1982-03-26 Toshiba Corp Sheet transport apparatus
US4432540A (en) * 1981-02-05 1984-02-21 Bell & Howell Company Mail sorting machine with improved conveyor and envelope separating device
FR2538797A1 (fr) * 1982-12-30 1984-07-06 Hotchkiss Brandt Sogeme Dispositif d'empilage d'objets plats
US4506876A (en) * 1982-02-13 1985-03-26 Sharp Kabushiki Kaisha Sheet paper attracting system
US4585335A (en) * 1979-05-29 1986-04-29 Dainippon Screen Mfg. Co., Ltd. Automatic process camera
US4648587A (en) * 1983-03-24 1987-03-10 Nec Corporation Flat article feeding apparatus
EP0175566A3 (en) * 1984-09-21 1987-06-10 Cameronics Technology Corporation Limited Camera
FR2631321A1 (fr) * 1988-05-11 1989-11-17 Cga Hbs Depileur d'objets plats non normes
US5152521A (en) * 1990-04-20 1992-10-06 Fuji Photo Film Co., Ltd. Sheet feed mechanism
EP0508859A1 (fr) * 1991-04-12 1992-10-14 Fournier S.A. Dispositif de raccordement d'un écran drainant et/ou isolant dans une tranchée
US5213319A (en) * 1992-02-24 1993-05-25 International Paper Box Machine Company, Inc. Adjustable feeder for shingling carton blanks from a stack and method for feeding therefrom
US5290022A (en) * 1991-07-25 1994-03-01 Compagnie Generale D'automatisme Cga-Hbs Device for feeding pieces of mail, especially unsealed pieces, from a stack and a method of operating the device
US5431384A (en) * 1994-05-10 1995-07-11 Polaroid Corporation Method and apparatus for feeding print media
US5813669A (en) * 1996-06-08 1998-09-29 Horizon International, Inc. Paper supplying device and a rotor therefor
US6254079B1 (en) * 1998-11-24 2001-07-03 Kabushiki Kaisha Toshiba Sheet processing unit
US6416049B1 (en) * 1999-10-26 2002-07-09 Giesecke & Devrient Gmbh Singling apparatus for flat sheet material
US20110193285A1 (en) * 2010-02-10 2011-08-11 Ricoh Company, Limited Feeding device and image forming apparatus
US20130027492A1 (en) * 2011-07-27 2013-01-31 Nobuaki Yoneyama Medium conveyance apparatus and image forming apparatus
US20130168918A1 (en) * 2011-12-30 2013-07-04 Pitney Bowes Inc. Vacuum roller assembly
CN110621441A (zh) * 2017-05-16 2019-12-27 豪迈股份公司 给料装置和给料方法
US20200321647A1 (en) * 2019-04-05 2020-10-08 Hanon Systems New assembly method to install sheet material
US11752285B2 (en) 2016-04-28 2023-09-12 Invent Medical Corporation System and method for accurate estimation of intentional and unintentional leaks in flow generation systems

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1207406B (de) 1959-07-09 1965-12-23 Ibm Einrichtung zum Abheben des jeweils obersten Blattes eines aus Blaettern unterschiedlicher Groesse und Dicke bestehenden Blattstapels
DE1159201B (de) * 1960-07-14 1963-12-12 Telefunken Patent Einrichtung zur Sicherung bzw. Herstellung der vereinzelten Lage von flachen Sendungen, wie insbesondere Postsendungen
DE1211661B (de) * 1962-04-04 1966-03-03 Parnall & Sons Ltd Vorrichtung zum Vereinzeln und Weiterleiten von gestapelten Blaettern
GB1031828A (en) * 1963-05-20 1966-06-02 Sperry Rand Corp Document advancing machine
DE1275548B (de) * 1964-04-08 1968-08-22 Telefunken Patent Einrichtung zum Vereinzeln von flachen Gegenstaenden wie beispielsweise Briefen
DE1273541B (de) * 1964-11-13 1968-07-25 Beloit Corp Vorrichtung zum Vereinzeln und Abfoerdern von Bogen eines Bogenstapels
AT363320B (de) * 1978-02-03 1981-07-27 Walli Papier Zellstoffwatte Durchstroemungstrockner zum trocknen eines faservlieses oder einer papierbahn
DE3068657D1 (en) * 1979-04-20 1984-08-30 Tokyo Shibaura Electric Co Sheet transport apparatus
DE19743120A1 (de) 1997-09-30 1999-04-01 Focke & Co Gebindepackung für Zigaretten sowie Verfahren und Vorrichtung zum Herstellen derselben
CN111757841B (zh) * 2018-02-20 2022-05-13 富士通先端科技株式会社 纸张分离装置和纸张分离方法

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US1196437A (en) * 1913-07-26 1916-08-29 C S Britton Method of conditioning paper preparatory to printing thereon.
US1196438A (en) * 1914-09-29 1916-08-29 Charles S Britton Suction-nozzle attachment for printing-presses.
US2057279A (en) * 1936-05-07 1936-10-13 Wesley P Shomaker Feeding mechanism
US2184229A (en) * 1936-12-24 1939-12-19 Spiess Georg Control device for sheet feeding apparatus
US2729448A (en) * 1951-08-31 1956-01-03 Backhouse Headley Townsend Sheet feeding mechanisms
US2812941A (en) * 1953-04-14 1957-11-12 Headley Townsend Backhouse Sheet separating machines

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DE544141C (de) * 1932-02-13 Erich Reents Vorrichtung zum Trennen von Postsachen
DE20639C (de) * J. H. R. DlNS-MORE und F. HOYER in Liverpool Neuerung an pneumatischen Bogenanlegern für Buchdruckpressen
GB168069A (en) * 1920-08-23 1922-09-28 Georg Spiess Improvements in or relating to paper or the like sheet feeding mechanism
US2151228A (en) * 1936-10-31 1939-03-21 Charles F Pflanze Sheet feeding and forwarding mechanism
US2240818A (en) * 1939-08-02 1941-05-06 Wale Bruce Sheet-feeding mechanism
GB640529A (en) * 1946-10-12 1950-07-19 Deixter Folder Company Improvements in automatic sheet feeding apparatus
GB755494A (en) * 1953-11-09 1956-08-22 Alonzo William Noon Improvements in or relating to sheet-separating apparatus
DE1007340B (de) 1955-02-26 1957-05-02 Falz Und Heftmaschinenwerk Lei Verfahren zur Bogenvereinzelung und -weiterfoerderung mittels Saugtrommel, insbesondere an Druckmaschinen
GB780692A (en) * 1955-04-29 1957-08-07 Paul Heinz Wendt Improvements in sheet-separating apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1196437A (en) * 1913-07-26 1916-08-29 C S Britton Method of conditioning paper preparatory to printing thereon.
US1196438A (en) * 1914-09-29 1916-08-29 Charles S Britton Suction-nozzle attachment for printing-presses.
US2057279A (en) * 1936-05-07 1936-10-13 Wesley P Shomaker Feeding mechanism
US2184229A (en) * 1936-12-24 1939-12-19 Spiess Georg Control device for sheet feeding apparatus
US2729448A (en) * 1951-08-31 1956-01-03 Backhouse Headley Townsend Sheet feeding mechanisms
US2812941A (en) * 1953-04-14 1957-11-12 Headley Townsend Backhouse Sheet separating machines

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3330555A (en) * 1962-04-24 1967-07-11 Plastic Coating Corp Pneumatic sheet feeding platen and supply magazine
US3466983A (en) * 1964-10-23 1969-09-16 Jagenberg Werke Ag Method of and apparatus for inserting marking strips into stacks of sheets
US3455274A (en) * 1964-11-13 1969-07-15 Beloit Corp Sheet feeder
US3253824A (en) * 1964-11-18 1966-05-31 L & L Mfg Inc Apparatus for separating pieces from a stack, and the like
US3431139A (en) * 1965-07-21 1969-03-04 Azoplate Corp Process and apparatus for successively withdrawing individual articles from a stack
US3384366A (en) * 1966-02-07 1968-05-21 Lyle V. Dutro Outfeed mechanism
US3445106A (en) * 1966-06-24 1969-05-20 Vidosa Sa Apparatus for receiving upon an elevationally displaceable table a stack of flat material
US3655183A (en) * 1970-07-13 1972-04-11 Xerox Corp Sheet feed apparatus
US3938799A (en) * 1972-10-24 1976-02-17 Hydrabind, Inc. Signature arranging device and method
US3976291A (en) * 1973-11-21 1976-08-24 G.A.O. Gesellschaft Fur Automation Und Organisation M.B.H. Arrangement for separating sheets of paper and the like
US4030723A (en) * 1975-12-15 1977-06-21 Pitney-Bowes, Inc. Vacuum-controlled, sheet-material separator and feeder system
US4585335A (en) * 1979-05-29 1986-04-29 Dainippon Screen Mfg. Co., Ltd. Automatic process camera
JPS5656440A (en) * 1979-10-08 1981-05-18 Toshiba Corp Paper sheet transfer device
JPS5661243A (en) * 1979-10-25 1981-05-26 Toshiba Corp Conveyance device for sheet
JPS5751632A (en) * 1980-09-12 1982-03-26 Toshiba Corp Sheet transport apparatus
US4432540A (en) * 1981-02-05 1984-02-21 Bell & Howell Company Mail sorting machine with improved conveyor and envelope separating device
US4506876A (en) * 1982-02-13 1985-03-26 Sharp Kabushiki Kaisha Sheet paper attracting system
FR2538797A1 (fr) * 1982-12-30 1984-07-06 Hotchkiss Brandt Sogeme Dispositif d'empilage d'objets plats
EP0115237A1 (fr) * 1982-12-30 1984-08-08 Hbs Dispositif d'empilage d'objets plats
US4648587A (en) * 1983-03-24 1987-03-10 Nec Corporation Flat article feeding apparatus
EP0175566A3 (en) * 1984-09-21 1987-06-10 Cameronics Technology Corporation Limited Camera
FR2631321A1 (fr) * 1988-05-11 1989-11-17 Cga Hbs Depileur d'objets plats non normes
US5152521A (en) * 1990-04-20 1992-10-06 Fuji Photo Film Co., Ltd. Sheet feed mechanism
EP0508859A1 (fr) * 1991-04-12 1992-10-14 Fournier S.A. Dispositif de raccordement d'un écran drainant et/ou isolant dans une tranchée
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Also Published As

Publication number Publication date
NL225276A (en))
DE1118810B (de) 1961-12-07
FR1225119A (fr) 1960-06-29
GB849797A (en) 1960-09-28

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