GB224976A - Improvements in variable inductances - Google Patents
Improvements in variable inductancesInfo
- Publication number
- GB224976A GB224976A GB2163123A GB2163123A GB224976A GB 224976 A GB224976 A GB 224976A GB 2163123 A GB2163123 A GB 2163123A GB 2163123 A GB2163123 A GB 2163123A GB 224976 A GB224976 A GB 224976A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- coils
- plug
- secured
- wound
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetic Treatment Devices (AREA)
Abstract
224,976. Mansbridge, G. F. Aug. 27, 1923. Inductances.-In a variometer the elements are wound so as to have low distributed capacity and are mounted on discs capable of rotation relative to one another about a common axis passing through the centre of the discs. The elements may be of single layer spaced coils or basket coils or multilayer low-capacity coils of known type. In one form, the stator comprises a pair of opposite wound kidney-shaped coils c, d, Fig. 1, mounted in a recess in an ebonite disc a provided with legs a<1>, Fig. 5. The outer end of the coil c is connected to the inner end of the coil d and the other ends are connected to terminals on the lower side of the disc a. The rotor comprises a similar and similarly connected pair of coils mounted in a, recessed disc b, provided with a central hollow plug g mounted in a bush a<2> in the disc a. The plug g has a threaded end on which is mounted a nut g<2> to keep the discs in engagement. The plug is insulated from the coils by a sleeve g<1>. The rotor windings are connected by flexible leads passing through the plug g to terminals on the stator. Strips of metal are provided for connecting the latter terminals with those connected to the stator windings so that the windings are in series or parallel. A rod b<4> provided with a knob b<3> is secured to the plug g. Rotation is limited by an upstanding lip a<3> in the upper edge of the disc a, taking into a recess b<1> extending partly around the lower edge of the disc b. A pointer h secured to the disc a registers with a bevelled dial b<2> vulcanized or otherwise secured to the disc b. Cores of powdered iron obtained chemically or electrolytically may be inserted in the spaces l and a part or the whole of the mechanical supports may be made of this material. Each pair of coils may alternately be D-shaped or circular. The coils may be wound in sections and means provided for cutting one or more sections out of circuit. Specification 22206/05 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2163123A GB224976A (en) | 1923-08-27 | 1923-08-27 | Improvements in variable inductances |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2163123A GB224976A (en) | 1923-08-27 | 1923-08-27 | Improvements in variable inductances |
Publications (1)
Publication Number | Publication Date |
---|---|
GB224976A true GB224976A (en) | 1924-11-27 |
Family
ID=10166171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2163123A Expired GB224976A (en) | 1923-08-27 | 1923-08-27 | Improvements in variable inductances |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB224976A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE757078C (en) * | 1935-11-20 | 1954-02-01 | Siemens & Halske A G | High frequency variometer with two nested spherical or cylindrical coils |
US2921280A (en) * | 1957-05-13 | 1960-01-12 | Sperry Rand Corp | Variable coupling transformer device |
US3382472A (en) * | 1966-07-06 | 1968-05-07 | Joachim A. Maass | Relatively movable coils in slotted cores |
US3492618A (en) * | 1968-05-07 | 1970-01-27 | Breeze Corp | Split rotary electric transformer |
-
1923
- 1923-08-27 GB GB2163123A patent/GB224976A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE757078C (en) * | 1935-11-20 | 1954-02-01 | Siemens & Halske A G | High frequency variometer with two nested spherical or cylindrical coils |
US2921280A (en) * | 1957-05-13 | 1960-01-12 | Sperry Rand Corp | Variable coupling transformer device |
US3382472A (en) * | 1966-07-06 | 1968-05-07 | Joachim A. Maass | Relatively movable coils in slotted cores |
US3492618A (en) * | 1968-05-07 | 1970-01-27 | Breeze Corp | Split rotary electric transformer |
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