GB226586A - Improvements in or relating to variable self-induction apparatus - Google Patents

Improvements in or relating to variable self-induction apparatus

Info

Publication number
GB226586A
GB226586A GB2183923A GB2183923A GB226586A GB 226586 A GB226586 A GB 226586A GB 2183923 A GB2183923 A GB 2183923A GB 2183923 A GB2183923 A GB 2183923A GB 226586 A GB226586 A GB 226586A
Authority
GB
United Kingdom
Prior art keywords
drums
wire
wound
gearing
variable
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
GB2183923A
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.)
MARREC Ltd
Original Assignee
MARREC 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 MARREC Ltd filed Critical MARREC Ltd
Priority to GB2183923A priority Critical patent/GB226586A/en
Publication of GB226586A publication Critical patent/GB226586A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/005—Inductances without magnetic core

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)

Abstract

226,586. Marrec, Ltd., and Marrec, Y. Aug. 29, 1923. Inductances.-A variable inductance comprises a length of wire or strip the end portions of which are wound inductively on two drums, the middle point of the wire being fastened to a third drum on which the remainder of the wire is wound non- inductively. The drums are connected by gearing. The conductor may be of round, square or rectangular section, and mav be wound in helical grooves on the drums, or it may be flat strip wound in a plane spiral. The drums may be of such cross-section as to provide a special relation between the inductance and the amount of turning. The inductive windings may be provided with magnetic cores which may be independent or coupled. According to the Provisional Specification the drums may be connected by friction gearing to allow slip when, as in the case of flat spiral windings, the speed ratio is variable. In a modification gearing is dispensed with, the wire being kept in tension by a spring applied to one of the drums.
GB2183923A 1923-08-29 1923-08-29 Improvements in or relating to variable self-induction apparatus Expired GB226586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2183923A GB226586A (en) 1923-08-29 1923-08-29 Improvements in or relating to variable self-induction apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2183923A GB226586A (en) 1923-08-29 1923-08-29 Improvements in or relating to variable self-induction apparatus

Publications (1)

Publication Number Publication Date
GB226586A true GB226586A (en) 1924-12-29

Family

ID=10169660

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2183923A Expired GB226586A (en) 1923-08-29 1923-08-29 Improvements in or relating to variable self-induction apparatus

Country Status (1)

Country Link
GB (1) GB226586A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2583133A (en) * 1947-06-19 1952-01-22 Westinghouse Electric Corp Variable inductance
US2629812A (en) * 1947-09-20 1953-02-24 Westinghouse Electric Corp Adjustable dielectric heating equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2583133A (en) * 1947-06-19 1952-01-22 Westinghouse Electric Corp Variable inductance
US2629812A (en) * 1947-09-20 1953-02-24 Westinghouse Electric Corp Adjustable dielectric heating equipment

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