GB623455A - Improvements in and relating to variable inductances - Google Patents
Improvements in and relating to variable inductancesInfo
- Publication number
- GB623455A GB623455A GB109547A GB109547A GB623455A GB 623455 A GB623455 A GB 623455A GB 109547 A GB109547 A GB 109547A GB 109547 A GB109547 A GB 109547A GB 623455 A GB623455 A GB 623455A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- core
- container
- inductance
- magnetic
- 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
- H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
- H01F21/06—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by movement of core or part of core relative to the windings as a whole
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
623,455. Inductances. BROWN, W. F. Jan. 13, 1947, No. 1095. [Class 38 (ii)] In order that the inductance of a coil may be continuously variable over a wide range, the coil, a non-magnetic conductive container and a high permeability magnetic core are all mounted on a common axis, with the container and core fixed relative to one another, and the coil is made relatively movable between a position in which it is completely housed by the container to a position in which it is filled by the core. In a preferred arrangement the coil a1 is relatively movable from a position of minimum inductance in which it is contained by the conducting cylinder 1a, in which position it contains the conducting non-magnetic core g, to a position of maximum inductance in which the coil embraces only the magnetic dust core 2a. The core g may be threaded to provide the adjusting means. The invention may be incorporated with condensers to form tuning units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB109547A GB623455A (en) | 1947-01-13 | 1947-01-13 | Improvements in and relating to variable inductances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB109547A GB623455A (en) | 1947-01-13 | 1947-01-13 | Improvements in and relating to variable inductances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB623455A true GB623455A (en) | 1949-05-18 |
Family
ID=9716064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB109547A Expired GB623455A (en) | 1947-01-13 | 1947-01-13 | Improvements in and relating to variable inductances |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB623455A (en) |
-
1947
- 1947-01-13 GB GB109547A patent/GB623455A/en not_active Expired
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