GB715630A - Improvements relating to adjustable permanent magnets - Google Patents

Improvements relating to adjustable permanent magnets

Info

Publication number
GB715630A
GB715630A GB2622151A GB2622151A GB715630A GB 715630 A GB715630 A GB 715630A GB 2622151 A GB2622151 A GB 2622151A GB 2622151 A GB2622151 A GB 2622151A GB 715630 A GB715630 A GB 715630A
Authority
GB
United Kingdom
Prior art keywords
adjustable
permanent magnet
shunt
magnetic
class
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
GB2622151A
Inventor
Rupert Evan Howard Carpenter
Frederick Emil Rommel
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.)
Telephone Manufacturing Co Ltd
Original Assignee
Telephone Manufacturing Co 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 Telephone Manufacturing Co Ltd filed Critical Telephone Manufacturing Co Ltd
Priority to GB2622151A priority Critical patent/GB715630A/en
Priority to DE1952T0002915 priority patent/DE1741268U/en
Publication of GB715630A publication Critical patent/GB715630A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01F7/0226—PM with variable field strength

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Breakers (AREA)

Abstract

715,630. Electromagnetic relays. CARPENTER, R. E. H., and TELEPHONE MANUFACTURING CO., Ltd. Oct. 27, 1952 [Nov. 8, 1951], No. 26221/51. Class 38(5) [Also in Group XXXV] A permanent magnet body for polarized relays has an adjustable internal shunt by which the magnetic strength of the body may be adjusted. The invention is shown as applied to a relay as described in Specification 619,546 in which the magnets 9 are replaced by magnet bodies A, B according to the invention. The magnet body comprises a permanent magnet section B fixed to a soft-iron section A and the shunt F is adjustable by means of screw threads G, D, so that it enters an aperture E in the permanent magnet part to a controllable extent and so internally shunts an adjustable part of the magnetic flux, to vary the effective magnetic power of the body. In a modification, not shown, the adjustable shunt may slide in a groove in the' magnetic body. Specifications 315,496, [Class 38(v)], and 559,047 also are referred to.
GB2622151A 1951-11-08 1951-11-08 Improvements relating to adjustable permanent magnets Expired GB715630A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2622151A GB715630A (en) 1951-11-08 1951-11-08 Improvements relating to adjustable permanent magnets
DE1952T0002915 DE1741268U (en) 1951-11-08 1952-11-07 ADJUSTABLE PERMANENT MAGNET AND A POLARIZED ELECTROMAGNETIC RELAY EQUIPPED WITH IT.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2622151A GB715630A (en) 1951-11-08 1951-11-08 Improvements relating to adjustable permanent magnets

Publications (1)

Publication Number Publication Date
GB715630A true GB715630A (en) 1954-09-15

Family

ID=10240237

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2622151A Expired GB715630A (en) 1951-11-08 1951-11-08 Improvements relating to adjustable permanent magnets

Country Status (2)

Country Link
DE (1) DE1741268U (en)
GB (1) GB715630A (en)

Also Published As

Publication number Publication date
DE1741268U (en) 1957-03-14

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