GB1259955A - Magnetic memory device - Google Patents

Magnetic memory device

Info

Publication number
GB1259955A
GB1259955A GB1329568A GB1329568A GB1259955A GB 1259955 A GB1259955 A GB 1259955A GB 1329568 A GB1329568 A GB 1329568A GB 1329568 A GB1329568 A GB 1329568A GB 1259955 A GB1259955 A GB 1259955A
Authority
GB
United Kingdom
Prior art keywords
recording
memory device
magnetic memory
march
operable
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
GB1329568A
Inventor
Jack Evans Thompson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1329568A priority Critical patent/GB1259955A/en
Publication of GB1259955A publication Critical patent/GB1259955A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/12—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers
    • G05B19/16—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers using magnetic record carriers
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/06—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using cams, discs, rods, drums or the like
    • G05B19/063—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using cams, discs, rods, drums or the like for sequential programme-control without delivering a reference value

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

1,259,955. Magnetic recording drums. J. E. THOMPSON. 19 March, 1969 [19 March, 1968], No. 13295/68. Heading G5R. A cylindrical recording surface 5 is formed by smoothing a plurality of turns of wire 2 wrapped around a cylindrical member 1 of non-magnetic, insulating material. The member l may have a single surface co-operable with an erase, record and plurality of playback heads (Fig. 2, not shown), and a number of such members may be coaxially mounted with a playback head of one connected to the recording head of the next to provide a delay (Fig. 3, not shown). Alternatively the member may carry a plurality of recording surfaces co-operable with longitudinally indexed heads (Fig. 4, not shown).
GB1329568A 1968-03-19 1968-03-19 Magnetic memory device Expired GB1259955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1329568A GB1259955A (en) 1968-03-19 1968-03-19 Magnetic memory device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1329568A GB1259955A (en) 1968-03-19 1968-03-19 Magnetic memory device

Publications (1)

Publication Number Publication Date
GB1259955A true GB1259955A (en) 1972-01-12

Family

ID=10020361

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1329568A Expired GB1259955A (en) 1968-03-19 1968-03-19 Magnetic memory device

Country Status (1)

Country Link
GB (1) GB1259955A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee