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GB725142A - Improvements in or relating to method and means for magnetic reproduction of pictures - Google Patents

Improvements in or relating to method and means for magnetic reproduction of pictures

Info

Publication number
GB725142A
GB725142A GB5745/52A GB574552A GB725142A GB 725142 A GB725142 A GB 725142A GB 5745/52 A GB5745/52 A GB 5745/52A GB 574552 A GB574552 A GB 574552A GB 725142 A GB725142 A GB 725142A
Authority
GB
United Kingdom
Prior art keywords
magnetic
sheet
powder
record
image
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
Application number
GB5745/52A
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.)
RALPH BLAISDELL ATKINSON
Original Assignee
RALPH BLAISDELL ATKINSON
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 RALPH BLAISDELL ATKINSON filed Critical RALPH BLAISDELL ATKINSON
Publication of GB725142A publication Critical patent/GB725142A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/23—Reproducing arrangements
    • H04N1/27—Reproducing arrangements involving production of a magnetic intermediate picture
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G19/00—Processes using magnetic patterns; Apparatus therefor, i.e. magnetography
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)

Abstract

725,142. Printing processes. ATKINSON, R. B. March 5, 1952 [April 14, 1951], No. 5745/52. Drawings to Specification. Class 100 (2). [Also in Group XL (b)] Images are reproduced by first forming a magnetic record of the image and then applying a material having magnetic properties to the record in such a manner as to cause the material to be selectively distributed in accordance with the magnetic pattern and thereby to reproduce the image visibly. The magnetic record material comprises a sheet of plastic coated with a magnetic material such as iron oxide, the record being built up by scanning the surface with a magnetic recording head, and the material for reproducing the image visibly comprises a magnetic powder, such as iron, carbonyl iron or iron oxide, which is either dusted over the magnetized sheet or mixed with oil and flown over the sheet, the oil being removed subsequently by a solvent such as carbon tetrachloride or gasolene. The magnetized sheet with its coating of powder may form the final reproduction, in which case the powder is selected to have a colour which contrasts with the sheet. Alternatively the powder may be transferred to another support, such as paper, by coating the paper with an adhesive in the form of gelatine or a sizing and pressing the paper into contact with the magnetized sheet. As a further alternative, the magnetic powder may be coated with a pigment which is transferred by pressing to a final support moistened with a solvent for the pigment. These last two processes permit the magnetic record to be used for repeated reproduction. Colour images are reproduced by combining a plurality of component colour reproductions. In the particular embodiment disclosed, the magnetic reproduction is produced from an original image by apparatus operating in a conventional manner to effect synchronous helical scanning of the original and the magnetic sheet. The original is scanned photo-electrically although the apparatus may also be arranged with a magnetic pick-up head in order to reproduce from magnetic records. It is stated that the recording part of the apparatus may be located at a distance from the image analyser. Specification 686,009, [Group XL (b)], is referred to.
GB5745/52A 1951-04-14 1952-03-05 Improvements in or relating to method and means for magnetic reproduction of pictures Expired GB725142A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US221044A US2826634A (en) 1951-04-14 1951-04-14 Method and means for magnetic reproduction of pictures

Publications (1)

Publication Number Publication Date
GB725142A true GB725142A (en) 1955-03-02

Family

ID=22826109

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5745/52A Expired GB725142A (en) 1951-04-14 1952-03-05 Improvements in or relating to method and means for magnetic reproduction of pictures

Country Status (4)

Country Link
US (1) US2826634A (en)
DE (1) DE1044118B (en)
FR (1) FR1053634A (en)
GB (1) GB725142A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2924653A (en) * 1954-08-16 1960-02-09 Fairchild Camera Instr Co Apparatus for producing screened record sheets for image reproduction
US2909118A (en) * 1956-01-05 1959-10-20 Warren S D Co Magnetically imageable planographic plate
DE1671549B1 (en) * 1965-11-09 1971-06-24 Heller Jun William Charles Process for the permanent connection of fine-grain magnetic particles with the surface of a porous base made of non-magnetic material, in particular paper or the like.
GB1170007A (en) * 1968-01-25 1969-11-12 Standard Telephones Cables Ltd Apparatus for Displaying and Printing Information
US3627682A (en) * 1968-10-16 1971-12-14 Du Pont Encapsulated particulate binary magnetic toners for developing images
GB1230022A (en) * 1968-11-14 1971-04-28
JPS5148853B2 (en) * 1971-12-09 1976-12-23
US4163979A (en) * 1976-07-28 1979-08-07 Iwatsu Electric Co., Ltd. Method and apparatus for recording latent images on a magnetic medium in magnetography
US4121261A (en) * 1977-04-28 1978-10-17 Xerox Corporation Synchronous helical scan-helical record magnetic imaging
US4256818A (en) * 1979-11-05 1981-03-17 Xerox Corporation Magnetic or electrostatographic imaging and high speed fusing method uses polyamide resin in toner
US4323929A (en) * 1979-11-30 1982-04-06 E. I. Du Pont De Nemours And Company Printing process using lithographic plates made from toned amplitude modulated magnetic images
WO2001020570A1 (en) 1999-09-16 2001-03-22 Automotive Systems Laboratory, Inc. Magnetic field sensor

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1426384A (en) * 1919-06-23 1922-08-22 William E Hoke Method of and means for detecting defects in paramagnetic material
US1590399A (en) * 1922-06-02 1926-06-29 Tykocinski-Tyeociner Joseph Method of and means for reproducing sound
DE500722C (en) * 1927-01-26
US1867542A (en) * 1928-12-06 1932-07-12 Jr John Hays Hammond System of television
US1974911A (en) * 1929-12-27 1934-09-25 Buecker Heinrich Television
US1917509A (en) * 1930-03-17 1933-07-11 Patco Inc Apparatus for magnetically recording motion pictures
FR795574A (en) * 1934-03-22 1936-03-17 Egyesuelt Izzolampa Method and apparatus for producing images by means of electric charges
GB475383A (en) * 1937-01-04 1937-11-18 Clifford Alexander Blaker Improvements relating to fluids for use in magnetic tests for detecting surface flaws or cracks
USRE22869E (en) * 1939-06-06 1947-04-15 Process and apparatus fob elec
US2236373A (en) * 1940-07-05 1941-03-25 Anthony C Kowalski Method of permanently recording defects in metals
GB606133A (en) * 1945-09-17 1948-08-06 Desmond Deverell White Improvements in electrical means for reproducing photographs or like pictures including multicoloured pictures
US2520761A (en) * 1946-08-07 1950-08-29 Jr George J Giel Facsimile recording apparatus
US2530564A (en) * 1948-06-30 1950-11-21 Rca Corp Editing and inspection of invisible sound tracks
US2573881A (en) * 1948-11-02 1951-11-06 Battelle Development Corp Method and apparatus for developing electrostatic images with electroscopic powder
US2543051A (en) * 1948-12-06 1951-02-27 Haloid Co Method of charging and exposing electrophotographic plates
US2517808A (en) * 1948-12-22 1950-08-08 Rca Corp Image recording and reproducing apparatus
US2657932A (en) * 1949-04-16 1953-11-03 Rca Corp Combination photographic and magnetic sound record and method for producing same
US2698875A (en) * 1950-03-24 1955-01-04 Magnecord Inc Plural track magnetic recording and/or reproducing apparatus

Also Published As

Publication number Publication date
DE1044118B (en) 1958-11-20
US2826634A (en) 1958-03-11
FR1053634A (en) 1954-02-03

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