GB211553A - Improvements in electric inductance coils and the like - Google Patents

Improvements in electric inductance coils and the like

Info

Publication number
GB211553A
GB211553A GB3146622A GB3146622A GB211553A GB 211553 A GB211553 A GB 211553A GB 3146622 A GB3146622 A GB 3146622A GB 3146622 A GB3146622 A GB 3146622A GB 211553 A GB211553 A GB 211553A
Authority
GB
United Kingdom
Prior art keywords
pairs
elements
inductance coils
electric inductance
pair
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
GB3146622A
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.)
HUGH PERCIVAL THOMPSON LEFROY
Original Assignee
HUGH PERCIVAL THOMPSON LEFROY
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 HUGH PERCIVAL THOMPSON LEFROY filed Critical HUGH PERCIVAL THOMPSON LEFROY
Priority to GB3146622A priority Critical patent/GB211553A/en
Publication of GB211553A publication Critical patent/GB211553A/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
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

211,553. Lefroy, H. P. T. Nov. 17, 1922. Regulating-switches.-A step-by-step variable inductance comprises a number of pairs of elements 1, 2, 3, 4 and a switch adapted to connect any number of pairs in series, the elements of each pair in use being connected to assist one another and the elements of each pair not in use connected together in opposition and disconnected from other pairs in order to avoid '' dead-end " loss. The switch shown comprises a barrel 5 mounted on an axis 6 and provided with rows of contacts connected in the required manner. A pointer may be mounted on the spindle to indicate the number of pairs in use.
GB3146622A 1922-11-17 1922-11-17 Improvements in electric inductance coils and the like Expired GB211553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3146622A GB211553A (en) 1922-11-17 1922-11-17 Improvements in electric inductance coils and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3146622A GB211553A (en) 1922-11-17 1922-11-17 Improvements in electric inductance coils and the like

Publications (1)

Publication Number Publication Date
GB211553A true GB211553A (en) 1924-02-18

Family

ID=10323496

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3146622A Expired GB211553A (en) 1922-11-17 1922-11-17 Improvements in electric inductance coils and the like

Country Status (1)

Country Link
GB (1) GB211553A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2788371A1 (en) * 1999-01-12 2000-07-13 Vishay Sa CONFIGURABLE TRANSFORMER

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2788371A1 (en) * 1999-01-12 2000-07-13 Vishay Sa CONFIGURABLE TRANSFORMER
EP1020879A1 (en) * 1999-01-12 2000-07-19 Vishay S.A. Configurable transformer
US6590488B2 (en) 1999-01-12 2003-07-08 Vishay S.A. Configurable transformer

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