GB806288A - Apparatus for magnetically recording and printing graphic symbols - Google Patents

Apparatus for magnetically recording and printing graphic symbols

Info

Publication number
GB806288A
GB806288A GB6155/56A GB615556A GB806288A GB 806288 A GB806288 A GB 806288A GB 6155/56 A GB6155/56 A GB 6155/56A GB 615556 A GB615556 A GB 615556A GB 806288 A GB806288 A GB 806288A
Authority
GB
United Kingdom
Prior art keywords
belt
magnetic
heads
recording
ink
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
GB6155/56A
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.)
Clevite Corp
Original Assignee
Clevite 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 Clevite Corp filed Critical Clevite Corp
Publication of GB806288A publication Critical patent/GB806288A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/385—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material
    • B41J2/43—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material for magnetic printing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)

Abstract

806,288. Selective printing. CLEVITE CORPORATION. Feb. 28, 1956 [March 1, 1955], No. 6155/56. Class 100(4) [Also in Group XXXVIII] A high-speed character recording apparatus comprises a magnetic storage, e.g. an endless belt 20; having a layer of magnetic material, a number of magnetic recording heads 22 each of which forms a character from a number of separate elements, and means for advancing the belt 20 and selectively energizing the heads 22. The recording heads are in a rectangular non-magnetic block 40 and a number of thin wires, e.g. 0.003 inches in diameter, extend through the block to present flat segments 1-16 positioned in an array so that by the appropriate energization of pulsing circuith 83 various characters may be formed. A magnetic image is formed in the belt 20 which is then passed through a bath 25 through which ink 26, containing magnetizable particles, is circulated by, e.g. a pump 26a. The ink adheres to the magnetized areas of the belt 20 and is transferred to an ordinary web 28 by the coaction of rollers 27 and 29. The latent images on the belt 20 are erased by erase heads 31 and any remaining ink is removed by spraying a solvent by nozzles 30. A rotary brush 30a rubs off the dissolved ink. If necessary, the erase heads could be located after the brush 30a. The belt 20 is advanced, preferably uninterruptedly, and receives a magnetic flux set up by current pulses having a duration of about 0.1 to 0.25 microsecond. Pulse currents up to 30 amperes may be used with the diameter of copper wire .003 inches and which currents are set up by valve circuits, Figs. 4 and 5 (not shown). The value circuits are operated by sensing heads 81 scanning a magnetic record tape 80, having sixteen record channels corresponding to the recording elements 1-16. In a modification, the construction of the recording head, Fig. 7 (not shown), comprises seven thin dielectric boards suitably mounted side-by-side, each with five thin copper wires looped so that thirty-five re cording loops are positionel along the edges of the boards (see Group XXXVIII).
GB6155/56A 1955-03-01 1956-02-28 Apparatus for magnetically recording and printing graphic symbols Expired GB806288A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US806288XA 1955-03-01 1955-03-01

Publications (1)

Publication Number Publication Date
GB806288A true GB806288A (en) 1958-12-23

Family

ID=22158582

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6155/56A Expired GB806288A (en) 1955-03-01 1956-02-28 Apparatus for magnetically recording and printing graphic symbols

Country Status (1)

Country Link
GB (1) GB806288A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2219588A1 (en) * 1973-02-27 1974-09-20 Team
FR2387491A1 (en) * 1977-04-04 1978-11-10 Addressograph Multigraph Magnetic head for fine matrix paper printing - uses tint transfer and has different conductivity sheets varying current proximity

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2219588A1 (en) * 1973-02-27 1974-09-20 Team
FR2387491A1 (en) * 1977-04-04 1978-11-10 Addressograph Multigraph Magnetic head for fine matrix paper printing - uses tint transfer and has different conductivity sheets varying current proximity

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