GB1275787A - Improvements in and relating to variable inductances - Google Patents

Improvements in and relating to variable inductances

Info

Publication number
GB1275787A
GB1275787A GB4383669A GB4383669A GB1275787A GB 1275787 A GB1275787 A GB 1275787A GB 4383669 A GB4383669 A GB 4383669A GB 4383669 A GB4383669 A GB 4383669A GB 1275787 A GB1275787 A GB 1275787A
Authority
GB
United Kingdom
Prior art keywords
sept
relating
inductances
variable inductances
drake
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
GB4383669A
Inventor
Michael John Daniels
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.)
DRAKE TRANSFORMERS Ltd
Original Assignee
DRAKE TRANSFORMERS 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 DRAKE TRANSFORMERS Ltd filed Critical DRAKE TRANSFORMERS Ltd
Priority to GB4383669A priority Critical patent/GB1275787A/en
Publication of GB1275787A publication Critical patent/GB1275787A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
    • H01F29/10—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable part of magnetic circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

1275787 Inductors DRAKE TRANSFORMERS Ltd 4 Sept 1970 [4 Sept 1969] 43836/69 Heading H1T A ferromagnetic disc A of varying thickness is rotatable in the air gap F of a magnetic core C to vary its reluctance; the thickness variation may continue through a 270 degrees sector. The inductances of coils D, E is thereby varied. They may form part of an oscillator of variable frequency, one limb of a bridge or of an impedance voltage divider. Two or more devices as shown may be operated from a common shaft.
GB4383669A 1969-09-04 1969-09-04 Improvements in and relating to variable inductances Expired GB1275787A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4383669A GB1275787A (en) 1969-09-04 1969-09-04 Improvements in and relating to variable inductances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4383669A GB1275787A (en) 1969-09-04 1969-09-04 Improvements in and relating to variable inductances

Publications (1)

Publication Number Publication Date
GB1275787A true GB1275787A (en) 1972-05-24

Family

ID=10430523

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4383669A Expired GB1275787A (en) 1969-09-04 1969-09-04 Improvements in and relating to variable inductances

Country Status (1)

Country Link
GB (1) GB1275787A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0280444A1 (en) * 1987-02-19 1988-08-31 Westinghouse Electric Corporation Electromagnetic contactor with lightweight wide range current transducer
EP0279596B1 (en) * 1987-02-19 1993-09-29 Westinghouse Electric Corporation Electromagnetic contactor with lightweight wide range current transducer with sintered powdered metal core
US5402096A (en) * 1992-03-27 1995-03-28 Penny & Giles Position Sensors Limited Transducers
CN109817422A (en) * 2019-01-22 2019-05-28 东莞市昱懋纳米科技有限公司 A kind of transformer and manufacturing process

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0280444A1 (en) * 1987-02-19 1988-08-31 Westinghouse Electric Corporation Electromagnetic contactor with lightweight wide range current transducer
JPS63282666A (en) * 1987-02-19 1988-11-18 イートン　コーポレイション Current-voltage transducer
AU595678B2 (en) * 1987-02-19 1990-04-05 Westinghouse Electric Corporation Electromagnetic contactor with lightweight wide range current transducer
EP0279596B1 (en) * 1987-02-19 1993-09-29 Westinghouse Electric Corporation Electromagnetic contactor with lightweight wide range current transducer with sintered powdered metal core
US5402096A (en) * 1992-03-27 1995-03-28 Penny & Giles Position Sensors Limited Transducers
CN109817422A (en) * 2019-01-22 2019-05-28 东莞市昱懋纳米科技有限公司 A kind of transformer and manufacturing process

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees