GB464090A - Improvements in and relating to electric control devices - Google Patents
Improvements in and relating to electric control devicesInfo
- Publication number
- GB464090A GB464090A GB30925/36A GB3092536A GB464090A GB 464090 A GB464090 A GB 464090A GB 30925/36 A GB30925/36 A GB 30925/36A GB 3092536 A GB3092536 A GB 3092536A GB 464090 A GB464090 A GB 464090A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inductance
- magnetic material
- relating
- control devices
- electric control
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
464,090. Inductances. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 12, 1936, No. 30925. Convention date, Nov. 13, 1935. [Class 38 (ii)] [Also in Group XXXVIII] The inductance of a choke is varied by inserting in a gap in its core a magnetic or a non-magnetic material. As shown in Fig. 2, the half 9 of the disc 8 is of magnetic material, such as iron, and the other half 10 is of non- magnetic material such as aluminium. As the join in the disc is turned into the gap the inductance of the choke rises suddenly. The rate of rise of inductance can be varied by tapering the join between the two materials as shown in Fig. 3a by varying the width of the poles 7 as shown in Fig. 3b or by having a gradual transition between the two materials by a mixture of iron powder and aluminium powder combined by an adhesive.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE464090X | 1935-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB464090A true GB464090A (en) | 1937-04-12 |
Family
ID=6540212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30925/36A Expired GB464090A (en) | 1935-11-13 | 1936-11-12 | Improvements in and relating to electric control devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB464090A (en) |
-
1936
- 1936-11-12 GB GB30925/36A patent/GB464090A/en not_active Expired
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