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US2576882A - Device for conveying paper and similar substances - Google Patents

Device for conveying paper and similar substances Download PDF

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Publication number
US2576882A
US2576882A US789664A US78966447A US2576882A US 2576882 A US2576882 A US 2576882A US 789664 A US789664 A US 789664A US 78966447 A US78966447 A US 78966447A US 2576882 A US2576882 A US 2576882A
Authority
US
United States
Prior art keywords
paper
conveyor
belt
sheets
coating
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
US789664A
Other languages
English (en)
Inventor
Koole Pieter
Bourgonjon Louis Raymond
Lange Hendrik De
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.)
HARTFORD NAT BAND AND TRUST CO
HARTFORD NATIONAL BAND AND TRUST Co
Original Assignee
HARTFORD NAT BAND AND TRUST CO
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 HARTFORD NAT BAND AND TRUST CO filed Critical HARTFORD NAT BAND AND TRUST CO
Application granted granted Critical
Publication of US2576882A publication Critical patent/US2576882A/en
Anticipated expiration legal-status Critical
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
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
    • B65H5/021—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/005—Electrostatic holding down 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
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/004—Feeding articles separated from piles; Feeding articles to machines using electrostatic force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/261—Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/37—Printing employing electrostatic force
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S271/00—Sheet feeding or delivering
    • Y10S271/901—Magnetic operation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/001—Electric or magnetic imagery, e.g., xerography, electrography, magnetography, etc. Process, composition, or product
    • Y10S430/102—Electrically charging radiation-conductive surface

Definitions

  • a paper conveying device in which the surface of the paper lies completely free and in which clamps, bands, suctiondevices and the like are not needed. It should furthermore be possible to hold the paper in position against gravity.
  • a paper-conveying device of this kind is desirable, for example, in facsimile devices and may be used in printing presses, stamping machines, sorting machines and the like.
  • electro-static measuring instruments and condenser loudspeakers (the latter having never been in common use), only few or no fields of application of electro-static forces are known in industry. This may be due to the fact that it is dimcult to separate the two kinds of charges occurring side by side in nature, since this leads to high, sometimes even to very high tensions. Yet in solving the problem initially mentioned it has surprisingly been found that, owing to the nature of the material the electro-static method leads to a very satisfactory result. It has been found that to this result contributes in the first place the fact that paper, even when very dry, still exhibits a slight conductivity, so that with respect to highly insulating substances it must be regarded as a conductor. It is furthermore possible to obtain the electro-static charges, for example,
  • a device should preferably be provided for neutralizing the elcctro-statlc forces by electrical means.
  • the conveyor of electrically insulating ma tcrial is caused to pass between two bodies, 01 which one. which primarily comes into contact with the paper, is provided with at least one earthed coating of electrically conductive material, whereas the other body, which is always solely in contact with the conveyor, is coated with a substance capable, upon friction against the electrically insulating material of the com veyor, of producing an electro static charge on this material.
  • the substance referred to may be, for example, a cat-skin, felt, silk or a similar substance.
  • the body coated with a substance capable of producing, due to friction against an electrically insulating material, an electro-statlc charge on this material preferably exhibits the shape of a cylinder the periphery of which has, with respect to the conveyor a speed which differs from zero a sufiicient amount of friction between the conveyor and the friction-substance being thus obtained.
  • the conveyor of electrically insulating material is provided, on the side remote from the paper required to be conveyed, with narrow strips of thin, electrically conducting material which are electrically separated from one another in a direction at right angles to the direction of movement of the conveyor, the electrostatic charge being produced by successively connecting the strips to one terminal of a source of direct-current voltage, the other terminal of which is connected to a sheet of paper required to be conveyed and located on the other side of the conveyor.
  • a further, preferahe embodiment of the invention consists in that that side of the conveyor which is remote from the paper required to be conveved is provided with an electrically conductive coating whilst that side of the paper which is remote from the conveyor is brou ht into contact with a body which is also provided with an electrically conductive coating, the electro-static charge being produced by connecting the coating of the conveyor to one terminal of a source of direct-current voltage, of which the other terminal is connected to the coating of the body which is in contact with the paper. Also in this embodiment it is fundamentally immaterial how the source of direct-current voltage is connected. In this case it is, however, preferable to connect the side which is not connected to 4 paper and the conveyer is thus correspondingly increased.
  • the paper sheet Because of the essentially insulating properties of the paper sheet a charge of opposite polarity is initiallv induced in the surface of the paper adjacent to the conveyer surface. Similarly because of the insulating nature of the conveyer belt a charge of opposite polarity to the applied charge is induced on the surface adjacent to the paper. Thus the adjacent surfaces of the paper and conveyer have initially opposite charges which remain separated due to the air gap normally existing to a greater or lesser extent between paper and conveyer. In practice, the paper is not an absolute insulator so that the charge induced on the conveyer side of paper is neutralized to a greater or lesser extent because of the conduction throu h the paper.
  • the adjacent surfaces of the paper and the conveyer now assume the same polarity to a greater or lesser extent and the attraction forces between them are reduced.
  • the charge on the conveyer outer surface is transferred to the paper and is distributed through the paper. Since the transferred charge is opposite in polarity to the charge on the inner surface of the conveyer the attraction b tween the adhesion between the conveyor and the paper to be conveyed.
  • This is preferably effected, according to the invention, by electrical agency, in such manner that the conveyor together with the paper is passed between two bodies between which an alternating field prevails.
  • the peak voltage of which is preferably chosen to be of an order of magnitude such that between the coating and the paper a, now alternating, field strength eoual to that produced by the charging with direct-current voltage the'paper appears to be released by the conveyor. If desired use mav be made, in addition of a simple, mechanical device, for removing the paper.
  • t e contact bet een conveyor and paper is as intimate as possible.
  • means are provided to clear the convevor of dust before it receives the paper. This may be effected, for example by guidin the conveyor along a felt brush connected to a vacuum conduit or a vacuum cleaner.
  • I desi nates a conveyor of electrically insulating material, for example, rubber, or of flexible thermoplastic insulatin material, which is stretched in form of an endless belt between two cvlindersl and 3.
  • Cylinder 2 is made of electrically insulating material such for example as synthetic resin.
  • Above the conveyor is provided a guide 4 along which a sheet of paper 5 can slide on to the belt I.
  • Cylinder 8 which is made of metal, is earthed and is adapted to rotate freely. After having passed paper has to be removed again from the belt.
  • the cylinder 3 is made of metal and connected to an alternating-voltage source. of which the other terminal is connected to a metal cylinder II. The remaining adhesion is so slight that the paper cannot follow now the curvature of cylinder 3 and drops from the belt along a guide I2.
  • the latter Before the point at which the paper arrives on the belt, the latter is provided with a simple device for removing dust, soil and the like, consisti'n'gof a brush l3 and a suction-pipe I4, the
  • suction-pipe of a vacuum cleaner for example the suction-pipe of a vacuum cleaner.
  • the belt i is internally coated with strips of tin-foil 26 which extend'transversely to the direction of movement of the belt.
  • a cylinder 2i presses against these tin-foil strips and is connected to the positive side of a source of direct-current voltage.
  • the negative side is connected to an endless metal band 22 stretched around two cylinders 23.
  • the tin-foil coating of the belt is short-circuited with respect to the paper and this short-circuit enhances the adhesion of the paper to the belt.
  • the cylinder 2 may also be of metal and be earthed.
  • the cylinder 3 may be made of metal and be earthed.
  • the body 26 may be dispensed with and the body 25 is arranged opposite the cylinder 3.
  • a simple heating tical to those of Figs. 1 and 2.
  • the device for neutralizing the electro-static adhesive force consists of a body 34 connected to one terminal device constituted by a heating element 28 and a reflector ill, the cylinder 3 and the belt i being thus heated and dried, which is conducive to the adhesion of the paper to the belt.
  • the other parts of this embodiment are idenof an alternating-voltage source, ofwhich'the other terminal is connected to the (metal) cylinder 3. 1
  • one of the terminals of the source of alternating voltage must be earthed and connected to the cylinder 3.
  • the heating element 21, 28 is now arranged in such manner that the belt is heated at the point at which the paper arrives on the belt.
  • a device for conveying material in the form of sheets comprising a conveyor belt member of electrically insulating material having a first exposed surface for receiving the said sheets on one side of the conveyor and having a second surface on an opposite side of said conveyor member, means to apply the sheets to be conveyed onto said first surface, an electrically conducting coating on a portion of said second surface, and means to apply electrostatic charges to the exposed surface of the sheets to be conveyed and to the said coating.
  • a device for conveying material in the form of sheets comprising a conveyor belt member of electrically insulating material having a first exposed surface for receiving the said sheets on one side of the conveyor and having a second surface on an opposite side of said conveyor member, said conveyor member being movable in a given direction, means to apply the sheets to be conveyed onto said first surface, said second surface being provided with a plurality of electrically conducting coating spaced apart and ex tending in a direction transverse to the direction of movement of said conveyor, and means to apply electrostatic charges to the exposed surface of the sheets to be conveyed and to the said coatings successively.
  • a device for conveying material in the form of sheets comprising a conveyor belt member of electrically insulating material having a first exposed surface for receiving the said sheets on one side of the conveyor and having a second surface on an opposite side of said conveyor member, said conveyor member being movable in a given direction, means to apply the sheets to be conveyed onto said first surface, an electrically conducting layer forming a layer forming a continuous coating on said second surface, and means to apply electrostatic charges to the exposed surface of the sheets to be conveyed and to the said conducting coating.
  • a device for conveying material in the form of sheets comprising a conveyor belt member of electrically insulating material having a first exposed surface for receiving the said sheets on one side of the conveyor and having a second surface on the opposite side of said conveyor member, means to longitudinally move said conveyor member, means to apply the sheets to be conveyed onto said first surface, an electrically conducting coating on a portion of said second surface, means to apply electrostatic charges to the exposed surface of the sheets to be conveyed and to the of electrically insulating material having a first exposed surface for receiving the said sheets on one side of the conveyor and having a second surface on the opposite side of said conveyor member, means to longitudinally move said conveyor member, means .to apply the sheets to be conveyed onto said-first surface, an electrically conducting coating on a portion of said second surface, means to apply electrostatic charges to the exposed surface of the sheets to be conveyed and to the said conducting coating at a given point along the length of the conveyor, and means spaced from said given point in the direction of travel of the conveyor member to apply an

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
US789664A 1946-09-04 1947-12-04 Device for conveying paper and similar substances Expired - Lifetime US2576882A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2576882X 1946-09-04

Publications (1)

Publication Number Publication Date
US2576882A true US2576882A (en) 1951-11-27

Family

ID=19874833

Family Applications (1)

Application Number Title Priority Date Filing Date
US789664A Expired - Lifetime US2576882A (en) 1946-09-04 1947-12-04 Device for conveying paper and similar substances

Country Status (4)

Country Link
US (1) US2576882A (de)
BE (1) BE478098A (de)
FR (1) FR955849A (de)
NL (1) NL65047C (de)

Cited By (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627406A (en) * 1951-03-14 1953-02-03 Mestre Luis Sheet-mounting machine
US2684902A (en) * 1951-11-23 1954-07-27 Haloid Co Image transfer mechanism for electrostatically adhering images
US2684901A (en) * 1950-12-19 1954-07-27 Haloid Co Image transfer device
US2794390A (en) * 1953-03-20 1957-06-04 Jr Jerry A Burke Stock feeding means for rotary printing machine
US2825558A (en) * 1955-04-25 1958-03-04 Honeywell Regulator Co Electrostatic tape and methods of construction
US2826408A (en) * 1955-04-15 1958-03-11 Honeywell Regulator Co Electrostatic tape drive control systems
US2831678A (en) * 1954-12-28 1958-04-22 Soroban Engineering Inc Electrostatic tape drive
US2859962A (en) * 1955-04-15 1958-11-11 Honeywell Regulator Co Capstan for electrostatic tape drives
US2891668A (en) * 1956-05-31 1959-06-23 Sylvania Electric Prod Static escapement device
US2919785A (en) * 1956-11-29 1960-01-05 Columbia Ribbon Carbon Mfg Typewriter ribbon control
US2920987A (en) * 1958-01-24 1960-01-12 Norton Co Electrostatic device
US2937912A (en) * 1954-05-14 1960-05-24 Cymmer Thomas Device for making a record and displaying it
US2956718A (en) * 1955-04-15 1960-10-18 Honeywell Regulator Co Bidirectional tape transport apparatus
US2980933A (en) * 1955-11-08 1961-04-25 Samuel M Schwartz Static cleaning and dust and particle removal
US3016904A (en) * 1959-03-16 1962-01-16 Schmermund Maschf Alfred Method and equitment suitable for the formation of cut tobacco strands in cigarette making machines
US3017982A (en) * 1957-07-12 1962-01-23 Walsco Company Method and apparatus for handling charged particles
US3039388A (en) * 1958-01-02 1962-06-19 Harris Intertype Corp Printing press and sheet control device therefor
US3048088A (en) * 1960-05-13 1962-08-07 Champlain Company Inc Window applying machine for containers
US3068528A (en) * 1960-05-03 1962-12-18 Du Pont Method for conveying and stretching thermoplastic film
US3071179A (en) * 1961-03-30 1963-01-01 Us Rubber Co Tire building apparatus and method
US3268766A (en) * 1964-02-04 1966-08-23 Du Pont Apparatus for removal of electric charges from dielectric film surfaces
US3272505A (en) * 1965-08-30 1966-09-13 Sanderson Robert Arthur Capacitive guiding apparatus for record elements
US3309960A (en) * 1964-04-21 1967-03-21 Delplanque Marcel Lo Alexandre Photographic reproducing apparatus
US3322424A (en) * 1965-01-25 1967-05-30 Warren S D Co Apparatus and method for sheet transport and control
US3353734A (en) * 1963-04-03 1967-11-21 Kinelogic Corp Drive systems involving electrostatic forces
US3384815A (en) * 1962-11-23 1968-05-21 British Cellophane Ltd Moisture content measuring method and apparatus including a roller for periodically contacting a flexible travelling sheet member
US3419264A (en) * 1967-04-21 1968-12-31 Xerox Corp Document handling system
US3437336A (en) * 1966-04-28 1969-04-08 Meteor Siegen Apparat Schmeck Transport system for single sheets of photosensitive material
US3508824A (en) * 1967-03-08 1970-04-28 Eastman Kodak Co Means for handling electrophotographic transfer sheets
US3528592A (en) * 1968-09-13 1970-09-15 Du Pont Process of handling a charged web
US3549251A (en) * 1964-06-12 1970-12-22 Rca Corp Electrophotographic method and apparatus
US3601654A (en) * 1970-06-22 1971-08-24 Certron Corp Electrostatic-free tape cassette
US3612270A (en) * 1969-06-16 1971-10-12 Clark Aiken Co Cutter piler with electrostatic layboy
US3642362A (en) * 1969-06-02 1972-02-15 Xerox Corp Apparatus for conveying sheet material
US3690646A (en) * 1970-07-08 1972-09-12 Addressograph Multigraph Electrostatic conveyor
US3726520A (en) * 1969-08-13 1973-04-10 Hitachi Ltd Apparatus for automatically conveying sheets of paper by means of electrostatic adsorption
US3870515A (en) * 1970-05-20 1975-03-11 Xerox Corp Method for electrostatic paper stripping by neutralization of transfer charge
US3912257A (en) * 1974-01-02 1975-10-14 Eastman Kodak Co Detacking apparatus
US3926428A (en) * 1971-07-28 1975-12-16 Seaco Computer Display Inc Sheet feeding apparatus
US3927877A (en) * 1973-04-20 1975-12-23 Fuji Xerox Co Ltd Paper feed tray for use with copying machine and the like
US3981498A (en) * 1975-03-24 1976-09-21 Xerox Corporation Non-uniform charging of sheet material
US3998536A (en) * 1970-05-20 1976-12-21 Xerox Corporation Apparatus for electrostatic paper stripping
US4027201A (en) * 1975-10-06 1977-05-31 International Business Machines Corporation Apparatus and method for neutralizing static charges in sheet/web feeding devices
JPS5532079A (en) * 1978-08-29 1980-03-06 Ricoh Co Ltd Transfer menber holding method
US4244465A (en) * 1978-04-21 1981-01-13 Taihei Chemicals Limited Electrostatic holding and conveying apparatus
US4249689A (en) * 1980-02-21 1981-02-10 Western Electric Company, Inc. Methods of and apparatus for advancing elongated material
US4256249A (en) * 1978-01-10 1981-03-17 Fuji Photo Film Co., Ltd. Photographing film conveying device
US4764842A (en) * 1986-03-07 1988-08-16 Hoechst Aktiengesellschaft Process for the electrostatic charging of recording materials and apparatus for implementation of the process
DE3833302A1 (de) * 1987-09-30 1989-04-20 Asahi Optical Co Ltd Papiertransport fuer die elektrofotografische bilderzeugung
US4856769A (en) * 1986-11-08 1989-08-15 Edward W. Andrew, Ltd. Apparatus for conveying sheets
US5121170A (en) * 1989-05-12 1992-06-09 Ricoh Company, Ltd. Device for transporting sheet members using an alternating voltage
US5172173A (en) * 1988-09-01 1992-12-15 Canon Kabushiki Kaisha Image forming device and transfer belt having contact-type electricity feeding means
US5176374A (en) * 1989-11-30 1993-01-05 Ricoh Company, Ltd. Paper transporting device for image forming equipment
US5211760A (en) * 1992-04-15 1993-05-18 Xerox Corporation Paper cleaner subsystem
US5286542A (en) * 1992-06-16 1994-02-15 Advanced Belt Technology Welded non-woven endless belt
US5427021A (en) * 1993-02-13 1995-06-27 Sulzer Papertec Krefeld Gmbh Calender for material webs or the like
US5593151A (en) * 1994-12-19 1997-01-14 Xerox Corporation Self biasing electrostatic paper transport
US6439372B1 (en) * 1998-03-25 2002-08-27 Schober Gmbh Werkzeug - Und Maschinenbau Conveyor device
US20040233264A1 (en) * 2003-05-24 2004-11-25 Smith David E. Media electrostatic hold down and conductive heating assembly
US20050190250A1 (en) * 2004-02-26 2005-09-01 Hewlett-Packard Development Company, L.P. Media hold down system
US20060115630A1 (en) * 2004-11-30 2006-06-01 Eastman Kodak Company Image element with electrostatic transport capability
WO2012054304A1 (en) * 2010-10-22 2012-04-26 Laitram, L.L.C. Conveyor system, belt, and method for measuring and controlling static electricity
JP2014156316A (ja) * 2013-02-15 2014-08-28 Ricoh Co Ltd シート搬送装置とシート繰り出し装置及び画像形成装置
US20180244012A1 (en) * 2017-02-28 2018-08-30 Packaging Progressions, Inc. Flap folding assembly

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US287957A (en) * 1883-11-06 Electrical apparatus for and method of controlling paper
US450854A (en) * 1891-04-21 Adolf weidenbusch
US1636977A (en) * 1926-01-05 1927-07-26 Int Precipitation Co Method and apparatus for supplying fibrous material in aligned condition
US1916109A (en) * 1933-06-27 Other material while
US2333213A (en) * 1942-02-02 1943-11-02 Slayter Games Static eliminator
US2375304A (en) * 1943-10-19 1945-05-08 Us Ind Chemicals Inc Static eliminator

Patent Citations (6)

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US287957A (en) * 1883-11-06 Electrical apparatus for and method of controlling paper
US450854A (en) * 1891-04-21 Adolf weidenbusch
US1916109A (en) * 1933-06-27 Other material while
US1636977A (en) * 1926-01-05 1927-07-26 Int Precipitation Co Method and apparatus for supplying fibrous material in aligned condition
US2333213A (en) * 1942-02-02 1943-11-02 Slayter Games Static eliminator
US2375304A (en) * 1943-10-19 1945-05-08 Us Ind Chemicals Inc Static eliminator

Cited By (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2684901A (en) * 1950-12-19 1954-07-27 Haloid Co Image transfer device
US2627406A (en) * 1951-03-14 1953-02-03 Mestre Luis Sheet-mounting machine
US2684902A (en) * 1951-11-23 1954-07-27 Haloid Co Image transfer mechanism for electrostatically adhering images
US2794390A (en) * 1953-03-20 1957-06-04 Jr Jerry A Burke Stock feeding means for rotary printing machine
US2937912A (en) * 1954-05-14 1960-05-24 Cymmer Thomas Device for making a record and displaying it
US2831678A (en) * 1954-12-28 1958-04-22 Soroban Engineering Inc Electrostatic tape drive
US2859962A (en) * 1955-04-15 1958-11-11 Honeywell Regulator Co Capstan for electrostatic tape drives
US2826408A (en) * 1955-04-15 1958-03-11 Honeywell Regulator Co Electrostatic tape drive control systems
US2956718A (en) * 1955-04-15 1960-10-18 Honeywell Regulator Co Bidirectional tape transport apparatus
US2825558A (en) * 1955-04-25 1958-03-04 Honeywell Regulator Co Electrostatic tape and methods of construction
US2980933A (en) * 1955-11-08 1961-04-25 Samuel M Schwartz Static cleaning and dust and particle removal
US2891668A (en) * 1956-05-31 1959-06-23 Sylvania Electric Prod Static escapement device
US2919785A (en) * 1956-11-29 1960-01-05 Columbia Ribbon Carbon Mfg Typewriter ribbon control
US3017982A (en) * 1957-07-12 1962-01-23 Walsco Company Method and apparatus for handling charged particles
US3039388A (en) * 1958-01-02 1962-06-19 Harris Intertype Corp Printing press and sheet control device therefor
US2920987A (en) * 1958-01-24 1960-01-12 Norton Co Electrostatic device
US3016904A (en) * 1959-03-16 1962-01-16 Schmermund Maschf Alfred Method and equitment suitable for the formation of cut tobacco strands in cigarette making machines
US3068528A (en) * 1960-05-03 1962-12-18 Du Pont Method for conveying and stretching thermoplastic film
US3048088A (en) * 1960-05-13 1962-08-07 Champlain Company Inc Window applying machine for containers
US3071179A (en) * 1961-03-30 1963-01-01 Us Rubber Co Tire building apparatus and method
US3384815A (en) * 1962-11-23 1968-05-21 British Cellophane Ltd Moisture content measuring method and apparatus including a roller for periodically contacting a flexible travelling sheet member
US3353734A (en) * 1963-04-03 1967-11-21 Kinelogic Corp Drive systems involving electrostatic forces
US3268766A (en) * 1964-02-04 1966-08-23 Du Pont Apparatus for removal of electric charges from dielectric film surfaces
US3309960A (en) * 1964-04-21 1967-03-21 Delplanque Marcel Lo Alexandre Photographic reproducing apparatus
US3549251A (en) * 1964-06-12 1970-12-22 Rca Corp Electrophotographic method and apparatus
US3322424A (en) * 1965-01-25 1967-05-30 Warren S D Co Apparatus and method for sheet transport and control
US3272505A (en) * 1965-08-30 1966-09-13 Sanderson Robert Arthur Capacitive guiding apparatus for record elements
US3437336A (en) * 1966-04-28 1969-04-08 Meteor Siegen Apparat Schmeck Transport system for single sheets of photosensitive material
US3508824A (en) * 1967-03-08 1970-04-28 Eastman Kodak Co Means for handling electrophotographic transfer sheets
US3419264A (en) * 1967-04-21 1968-12-31 Xerox Corp Document handling system
US3528592A (en) * 1968-09-13 1970-09-15 Du Pont Process of handling a charged web
US3642362A (en) * 1969-06-02 1972-02-15 Xerox Corp Apparatus for conveying sheet material
US3612270A (en) * 1969-06-16 1971-10-12 Clark Aiken Co Cutter piler with electrostatic layboy
US3726520A (en) * 1969-08-13 1973-04-10 Hitachi Ltd Apparatus for automatically conveying sheets of paper by means of electrostatic adsorption
US3870515A (en) * 1970-05-20 1975-03-11 Xerox Corp Method for electrostatic paper stripping by neutralization of transfer charge
US3998536A (en) * 1970-05-20 1976-12-21 Xerox Corporation Apparatus for electrostatic paper stripping
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BE478098A (de)
NL65047C (de)
FR955849A (de) 1950-01-20

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