GB1088411A - Ferro-magnetic cores - Google Patents

Ferro-magnetic cores

Info

Publication number
GB1088411A
GB1088411A GB27512/64A GB2751264A GB1088411A GB 1088411 A GB1088411 A GB 1088411A GB 27512/64 A GB27512/64 A GB 27512/64A GB 2751264 A GB2751264 A GB 2751264A GB 1088411 A GB1088411 A GB 1088411A
Authority
GB
United Kingdom
Prior art keywords
laminations
tool
holes
slots
shaped
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
GB27512/64A
Inventor
Eric Paddison
Gordon John Lally
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.)
English Electric Co Ltd
Original Assignee
English Electric 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 English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB27512/64A priority Critical patent/GB1088411A/en
Priority to US467263A priority patent/US3355689A/en
Priority to DE19651489840 priority patent/DE1489840B2/en
Priority to CH928565A priority patent/CH437512A/en
Priority to SE08833/65A priority patent/SE326763B/xx
Publication of GB1088411A publication Critical patent/GB1088411A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0233—Manufacturing of magnetic circuits made from sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Electromagnets (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Linear Motors (AREA)

Abstract

1,088,411. Electromagnets. ENGLISH ELECTRIC CO. Ltd. July 1, 1965 [July 3, 1964], No. 27512/64. Heading H1P. In a laminated ferro-magnetic core 11, such as an electromagnet, holes provided in first and second laminations are arranged to overlap one another so that an adjusting tool may be inserted through these holes at 15 or 16 to effect relative movement of the first and second laminations on rotation of the tool. As shown, slots 18 enable the upper set of laminations 13 to move relative to the fixed lower set of laminations secured at 17 so as to vary air gap 19 as the tool is rotated. Alternatively both sets of laminations may be movable. The laminations may be F-shaped (Figs. 3 and 4, not shown), and the holes may be slot, circular, or triangular shaped. The slots (20) of the upper laminations (Fig. 3) are arranged to overlap the circular holes (21) of the lower laminations so that on inserting a tool (such as in Fig. 2, not shown), a cam surface (25) on the tool moves the slots (20) within the holes (21) to effect relative movement of the laminations. Also a combination T- and E-shaped laminations (Fig. 5, not shown), may be used.
GB27512/64A 1964-07-03 1964-07-03 Ferro-magnetic cores Expired GB1088411A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB27512/64A GB1088411A (en) 1964-07-03 1964-07-03 Ferro-magnetic cores
US467263A US3355689A (en) 1964-07-03 1965-06-28 Ferromagnetic core with an adjustable air gap
DE19651489840 DE1489840B2 (en) 1964-07-03 1965-07-01 Three-legged lamellar core made of layered sheet metal
CH928565A CH437512A (en) 1964-07-03 1965-07-02 Laminated ferromagnetic core
SE08833/65A SE326763B (en) 1964-07-03 1965-07-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27512/64A GB1088411A (en) 1964-07-03 1964-07-03 Ferro-magnetic cores

Publications (1)

Publication Number Publication Date
GB1088411A true GB1088411A (en) 1967-10-25

Family

ID=10260777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27512/64A Expired GB1088411A (en) 1964-07-03 1964-07-03 Ferro-magnetic cores

Country Status (5)

Country Link
US (1) US3355689A (en)
CH (1) CH437512A (en)
DE (1) DE1489840B2 (en)
GB (1) GB1088411A (en)
SE (1) SE326763B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7656267B2 (en) * 2005-04-28 2010-02-02 Tyco Electronics Corporation Electrical transformers and assemblies
US9980396B1 (en) 2011-01-18 2018-05-22 Universal Lighting Technologies, Inc. Low profile magnetic component apparatus and methods

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2261323A (en) * 1940-07-26 1941-11-04 Union Switch & Signal Co Means for adjusting the impedance of electromagnetic devices
US2930998A (en) * 1956-02-09 1960-03-29 Ward Leonard Electric Co Fluorescent lamp dimming ballast

Also Published As

Publication number Publication date
CH437512A (en) 1967-06-15
SE326763B (en) 1970-08-03
US3355689A (en) 1967-11-28
DE1489840A1 (en) 1969-04-03
DE1489840B2 (en) 1970-09-10

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