GB918171A - A method of magnetising a permanently magnetisible body - Google Patents

A method of magnetising a permanently magnetisible body

Info

Publication number
GB918171A
GB918171A GB1060560A GB1060560A GB918171A GB 918171 A GB918171 A GB 918171A GB 1060560 A GB1060560 A GB 1060560A GB 1060560 A GB1060560 A GB 1060560A GB 918171 A GB918171 A GB 918171A
Authority
GB
United Kingdom
Prior art keywords
disc
fingers
field
march
periphery
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
GB1060560A
Inventor
Bruce Wilton Atkinson
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.)
S Smith and Sons Ltd
S Smith and Sons England Ltd
Original Assignee
S Smith and Sons Ltd
S Smith and Sons England Ltd
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 S Smith and Sons Ltd, S Smith and Sons England Ltd filed Critical S Smith and Sons Ltd
Priority to GB1060560A priority Critical patent/GB918171A/en
Publication of GB918171A publication Critical patent/GB918171A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D9/00—Demagnetising devices
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

918,171. Magnetizing apparatus. SMITH & SONS (ENGLAND) Ltd., S. March 21, 1961 [March 25, 1960], No. 10605/60. Class 35. A method of producing peripheral poles on a barium ferrite disc (Fig. 11) comprises two operations, firstly subjecting the disc to a strong axiallyapplied field (Figs. 1-4, not shown) to polarize the disc faces (with the exception of the extreme rim) and secondly subjecting the periphery of the disc to a strong radially applied field to produce the required number of peripheral poles (Fig. 5) and (Figs. 6-10, not shown). This radial field is applied by the arrangement shown in Fig. 5 which comprises pole members 14, 15 each having a plurality of extending fingers 22, 19 which converge towards the common axis of the pole members 14, 15, to terminate in pole faces 20 which lie on a cylindrical surface, coaxial with the common axis, and of a diameter slightly greater than that of the disc 5. Enclosed by each set of fingers 22, 19 is a brass disc 24, 21. The sets of fingers 22, 19, interlock around the periphery of the disc 5 when the polepieces 14, 15 are brought together.
GB1060560A 1960-03-25 1960-03-25 A method of magnetising a permanently magnetisible body Expired GB918171A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1060560A GB918171A (en) 1960-03-25 1960-03-25 A method of magnetising a permanently magnetisible body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1060560A GB918171A (en) 1960-03-25 1960-03-25 A method of magnetising a permanently magnetisible body

Publications (1)

Publication Number Publication Date
GB918171A true GB918171A (en) 1963-02-13

Family

ID=9970929

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1060560A Expired GB918171A (en) 1960-03-25 1960-03-25 A method of magnetising a permanently magnetisible body

Country Status (1)

Country Link
GB (1) GB918171A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0181597A1 (en) * 1984-11-07 1986-05-21 Sumitomo Bakelite Company Limited Method of producing permanent magnet
RU2492539C2 (en) * 2011-10-26 2013-09-10 Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Профессионального Образования "Саратовский Государственный Университет Имени Н.Г. Чернышевского" Miniature device for mangetisation and thermal stabilisation of ferrite microwave resonators

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0181597A1 (en) * 1984-11-07 1986-05-21 Sumitomo Bakelite Company Limited Method of producing permanent magnet
RU2492539C2 (en) * 2011-10-26 2013-09-10 Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Профессионального Образования "Саратовский Государственный Университет Имени Н.Г. Чернышевского" Miniature device for mangetisation and thermal stabilisation of ferrite microwave resonators

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