GB673267A - Magnetic cores for electric induction apparatus - Google Patents

Magnetic cores for electric induction apparatus

Info

Publication number
GB673267A
GB673267A GB1231450A GB1231450A GB673267A GB 673267 A GB673267 A GB 673267A GB 1231450 A GB1231450 A GB 1231450A GB 1231450 A GB1231450 A GB 1231450A GB 673267 A GB673267 A GB 673267A
Authority
GB
United Kingdom
Prior art keywords
core
trough
filler
adjusted
screws
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
GB1231450A
Inventor
William Frank Glover
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB1231450A priority Critical patent/GB673267A/en
Publication of GB673267A publication Critical patent/GB673267A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • H01F17/062—Toroidal core with turns of coil around it

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

673,267. Making transformer &c. cores. STANDARD TELEPHONES & CABLES, Ltd. May 17, 1950, No. 12314/50. Classes 83 (ii) and 83 (iv). [Also in Group XXXV] Angular beading.-The method of manufacturing a toroidal magnetic core having adjusted permeability comprises the steps of winding a ribbon of magnetic material into a spiral having insulation between successive turns, cutting a radial slot in the core, inserting a filler of magnetic material into the slot, adjusting the width of the residual air gaps between the filler and the sides of the slots by applying inwardly directed radial pressure to the periphery of the core and holding the airgaps in the adjusted position. The wound core 1 and the filler 2 are placed in a trough 3 and put in a jig 4, pressure being applied by the screws 5. After the air-gaps have been adjusted the free space in the trough is filled with a hard setting material and, after setting, the screws are withdrawn. The trough may be of insulating or conducting material.
GB1231450A 1950-05-17 1950-05-17 Magnetic cores for electric induction apparatus Expired GB673267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1231450A GB673267A (en) 1950-05-17 1950-05-17 Magnetic cores for electric induction apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1231450A GB673267A (en) 1950-05-17 1950-05-17 Magnetic cores for electric induction apparatus

Publications (1)

Publication Number Publication Date
GB673267A true GB673267A (en) 1952-06-04

Family

ID=10002237

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1231450A Expired GB673267A (en) 1950-05-17 1950-05-17 Magnetic cores for electric induction apparatus

Country Status (1)

Country Link
GB (1) GB673267A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014189A (en) * 1956-12-28 1961-12-19 Gen Electric Canada Electrical reactor with magnetic shielding
US3018455A (en) * 1955-05-24 1962-01-23 Magnetics Inc Apparatus for encasing magnetic cores
US3150340A (en) * 1958-06-24 1964-09-22 David C Kalbfell Toroidal core for high-q coil
DE3238439A1 (en) * 1982-10-16 1984-04-19 Vacuumschmelze Gmbh, 6450 Hanau RINGBAND CORE WITH AIR GAP AND METHOD FOR PRODUCING SUCH A RINGBAND CORE
US4603314A (en) * 1982-10-26 1986-07-29 Tdk Corporation Inductor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3018455A (en) * 1955-05-24 1962-01-23 Magnetics Inc Apparatus for encasing magnetic cores
US3014189A (en) * 1956-12-28 1961-12-19 Gen Electric Canada Electrical reactor with magnetic shielding
US3150340A (en) * 1958-06-24 1964-09-22 David C Kalbfell Toroidal core for high-q coil
DE3238439A1 (en) * 1982-10-16 1984-04-19 Vacuumschmelze Gmbh, 6450 Hanau RINGBAND CORE WITH AIR GAP AND METHOD FOR PRODUCING SUCH A RINGBAND CORE
US4603314A (en) * 1982-10-26 1986-07-29 Tdk Corporation Inductor

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