GB1165873A - Improvements in or relating to Electromagnetic Non-Percussive Printing and for Display Apparatus - Google Patents

Improvements in or relating to Electromagnetic Non-Percussive Printing and for Display Apparatus

Info

Publication number
GB1165873A
GB1165873A GB630568A GB630568A GB1165873A GB 1165873 A GB1165873 A GB 1165873A GB 630568 A GB630568 A GB 630568A GB 630568 A GB630568 A GB 630568A GB 1165873 A GB1165873 A GB 1165873A
Authority
GB
United Kingdom
Prior art keywords
magnetic
printing
drum
percussive
relating
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
GB630568A
Inventor
Robert James Hodges
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB630568A priority Critical patent/GB1165873A/en
Publication of GB1165873A publication Critical patent/GB1165873A/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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/14—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by electrographic printing, e.g. xerography; by magnetographic printing

Landscapes

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

Abstract

1,165,873. Selective printing. STANDARD TELEPHONES & CABLES Ltd. 8 Feb., 1968 No. 6305/68. Heading B6F. In an electromagnetic printing apparatus the magnetic ink powder is recovered by a scavenging device comprising a rotatable non- magnetic drum 1 having at the periphery thereof a plurality of permanent or electromagnets 2, and a non-magnetic shim 11 shaped around and just clear of part of the drum so that the magnetic lines of flux which are at right angles to the axis 3 of the drum attract the ink powder at 14. The shim 11 may be metallic or non-metallic provided the effects of static charges are obviated.
GB630568A 1968-02-08 1968-02-08 Improvements in or relating to Electromagnetic Non-Percussive Printing and for Display Apparatus Expired GB1165873A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB630568A GB1165873A (en) 1968-02-08 1968-02-08 Improvements in or relating to Electromagnetic Non-Percussive Printing and for Display Apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB630568A GB1165873A (en) 1968-02-08 1968-02-08 Improvements in or relating to Electromagnetic Non-Percussive Printing and for Display Apparatus

Publications (1)

Publication Number Publication Date
GB1165873A true GB1165873A (en) 1969-10-01

Family

ID=9812083

Family Applications (1)

Application Number Title Priority Date Filing Date
GB630568A Expired GB1165873A (en) 1968-02-08 1968-02-08 Improvements in or relating to Electromagnetic Non-Percussive Printing and for Display Apparatus

Country Status (1)

Country Link
GB (1) GB1165873A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee