GB614936A - Improvements in or relating to sliding-core inductance coils - Google Patents

Improvements in or relating to sliding-core inductance coils

Info

Publication number
GB614936A
GB614936A GB12978/46A GB1297846A GB614936A GB 614936 A GB614936 A GB 614936A GB 12978/46 A GB12978/46 A GB 12978/46A GB 1297846 A GB1297846 A GB 1297846A GB 614936 A GB614936 A GB 614936A
Authority
GB
United Kingdom
Prior art keywords
coil
windings
sliding
relating
inductances
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
GB12978/46A
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
Philips Gloeilampenfabrieken NV
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 Philips Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB614936A publication Critical patent/GB614936A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

614,936. Inductances. PHILIPS LAMPS, Ltd. April 30, 1946, No. 12978. Convention date, Jan. 28, 1942. Drawings to Specification. [Class 38 (ii)] A sliding core inductance wherein the coil comprises one or more windings having a progressively varying inductance is provided with a comparatively short iron core movably arranged in such manner that it always remains within the coil, i.e. all parts of it lie between the outer limits of the windings which constitute the coil. The progressive variation of the winding may be discontinuous, with the coil consisting of a plurality of discrete seriesconnected windings of unequal inductances, or it may be continuous, as when there is a single winding with progressively varying pitch. Specifications 535,719, 536,505 and 552,785 are referred to.
GB12978/46A 1942-01-28 1946-04-30 Improvements in or relating to sliding-core inductance coils Expired GB614936A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL614936X 1942-01-28

Publications (1)

Publication Number Publication Date
GB614936A true GB614936A (en) 1948-12-30

Family

ID=19788230

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12978/46A Expired GB614936A (en) 1942-01-28 1946-04-30 Improvements in or relating to sliding-core inductance coils

Country Status (1)

Country Link
GB (1) GB614936A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2957124A (en) * 1956-11-26 1960-10-18 Aeronautical Comm Equipment In High frequency choke coil
US4857824A (en) * 1987-07-16 1989-08-15 Cadillac Gage Textron Inc. Movable core position transducer
US20150008906A1 (en) * 2013-07-03 2015-01-08 Dennis K. Briefer Position sensing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2957124A (en) * 1956-11-26 1960-10-18 Aeronautical Comm Equipment In High frequency choke coil
US4857824A (en) * 1987-07-16 1989-08-15 Cadillac Gage Textron Inc. Movable core position transducer
US20150008906A1 (en) * 2013-07-03 2015-01-08 Dennis K. Briefer Position sensing device

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