GB324849A - Improvements in inductances - Google Patents
Improvements in inductancesInfo
- Publication number
- GB324849A GB324849A GB925829A GB925829A GB324849A GB 324849 A GB324849 A GB 324849A GB 925829 A GB925829 A GB 925829A GB 925829 A GB925829 A GB 925829A GB 324849 A GB324849 A GB 324849A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- coils
- former
- wave
- tuning
- 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
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
- H01F21/12—Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
324,849. Reyner, J. H. March 22, 1929. Inductances. -An inductance for use with a variable condenser for tuning on two wave bands comprises two fixed concentric or coaxial coils a, b, of which the former alone is in circuit when tuning on the longer wave band and both are connected in parallel by means of a switch e when tuning on the lower wave band, coupling being effected either by a tapping f, Fig. 1, on the long-wave coil a or by coils g, h, Fig. 2, coupled more closely with the coil a than with the coil b. Fig. 3 shows a constructional form of the arrangement diagrammatically shown in Fig. 2, the long-wave coil a being wound on a cylindrical former j, and the coil b on a coaxial outer former i. The coils g, h are wound on an inner coaxial former k and are arranged to be closely coupled with the coil a. According to the Provisional Specification, the coils a, b may be placed in series for the long wave band. Reference has been directed by the Comptroller to Specification 321,711.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB925829A GB324849A (en) | 1929-03-22 | 1929-03-22 | Improvements in inductances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB925829A GB324849A (en) | 1929-03-22 | 1929-03-22 | Improvements in inductances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB324849A true GB324849A (en) | 1930-02-06 |
Family
ID=9868500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB925829A Expired GB324849A (en) | 1929-03-22 | 1929-03-22 | Improvements in inductances |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB324849A (en) |
-
1929
- 1929-03-22 GB GB925829A patent/GB324849A/en not_active Expired
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