GB1436711A - Magnetic encoding devices - Google Patents

Magnetic encoding devices

Info

Publication number
GB1436711A
GB1436711A GB653873A GB653873A GB1436711A GB 1436711 A GB1436711 A GB 1436711A GB 653873 A GB653873 A GB 653873A GB 653873 A GB653873 A GB 653873A GB 1436711 A GB1436711 A GB 1436711A
Authority
GB
United Kingdom
Prior art keywords
slotted
magnetic encoding
encoding devices
brass
plural
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
GB653873A
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.)
LONDON TRANSPORT EXECUTIVE
Original Assignee
LONDON TRANSPORT EXECUTIVE
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 LONDON TRANSPORT EXECUTIVE filed Critical LONDON TRANSPORT EXECUTIVE
Priority to GB653873A priority Critical patent/GB1436711A/en
Publication of GB1436711A publication Critical patent/GB1436711A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • H01F13/003—Methods and devices for magnetising permanent magnets
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B11/00—Apparatus for validating or cancelling issued tickets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Ticket-Dispensing Machines (AREA)

Abstract

1436711 Permanent magnets; magnetizing LONDON TRANSPORT EXECUTIVE 27 March 1974 [9 Feb 1973] 6538/73 Heading H1P A magnetic encoding roller for ticket issuing machines comprises a brass body 2 slotted at 3 to accommodate a steel keeper 4 having plural axial slots in the peripheral surface; into which plural separate radial magnetic code plates 5 may be inserted at each end retained by a slotted brass locating segment 6. Specification 1,436,712 is referred to.
GB653873A 1973-02-09 1973-02-09 Magnetic encoding devices Expired GB1436711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB653873A GB1436711A (en) 1973-02-09 1973-02-09 Magnetic encoding devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB653873A GB1436711A (en) 1973-02-09 1973-02-09 Magnetic encoding devices

Publications (1)

Publication Number Publication Date
GB1436711A true GB1436711A (en) 1976-05-26

Family

ID=9816330

Family Applications (1)

Application Number Title Priority Date Filing Date
GB653873A Expired GB1436711A (en) 1973-02-09 1973-02-09 Magnetic encoding devices

Country Status (1)

Country Link
GB (1) GB1436711A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987003418A1 (en) * 1985-11-22 1987-06-04 Zahnradfabrik Friedrichshafen Ag Permanent-magnetic foil
EP0237950A1 (en) * 1986-03-18 1987-09-23 Knogo Corporation Method and apparatus for deactivating targets used in electromagnetic type article surveillance systems
EP0722147A2 (en) * 1995-01-10 1996-07-17 Eastman Kodak Company Very high field micro magnetic roller and method of making same
GB2322477A (en) * 1997-02-19 1998-08-26 Portals Ltd Magnetising system for security labels

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987003418A1 (en) * 1985-11-22 1987-06-04 Zahnradfabrik Friedrichshafen Ag Permanent-magnetic foil
EP0237950A1 (en) * 1986-03-18 1987-09-23 Knogo Corporation Method and apparatus for deactivating targets used in electromagnetic type article surveillance systems
EP0722147A2 (en) * 1995-01-10 1996-07-17 Eastman Kodak Company Very high field micro magnetic roller and method of making same
EP0722147A3 (en) * 1995-01-10 2000-11-15 Eastman Kodak Company Very high field micro magnetic roller and method of making same
GB2322477A (en) * 1997-02-19 1998-08-26 Portals Ltd Magnetising system for security labels
GB2322477B (en) * 1997-02-19 1999-01-13 Portals Ltd Magnetising system for security threads and security method

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Legal Events

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