GB615964A - Improvements in or relating to electric choke coils - Google Patents
Improvements in or relating to electric choke coilsInfo
- Publication number
- GB615964A GB615964A GB2530946A GB2530946A GB615964A GB 615964 A GB615964 A GB 615964A GB 2530946 A GB2530946 A GB 2530946A GB 2530946 A GB2530946 A GB 2530946A GB 615964 A GB615964 A GB 615964A
- Authority
- GB
- United Kingdom
- Prior art keywords
- casing
- winding
- choke
- magnetic material
- relating
- 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
- H01F37/00—Fixed inductances not covered by group H01F17/00
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
615,964. inductances; supply systems for space discharge lamps. STURDY ELECTRIC CO., Ltd., LARK, G. T. K., and DAVIE, R. B. Aug. 23, 1946, No. 25309. [Classes 38 (ii) and 38 (iv)] A choke coil 1 comprises one or more windings 1a, 1b of rectangular or other cross-section of greater width than height and an inner core 2 of straight laminations with a casing 3 of sheet magnetic material surrounding the winding, such as the steel trough of a reflector for a discharge lamp or a shallow casing of similar shape mounted on top thereof. The winding(s) may extend beyond one end of the core to form an air gap in the magnetic circuit and the casing 3 may contain components associated with the choke, such as an auto-transformer 4, condensers 5 and 6 and a vibrator 7, the remaining space being filled with an insulating compound. The casing may be divided into compartments by transverse partitions of magnetic material; these may be placed close to the ends of the choke winding(s) to provide a magnetic path to the sides of the case. Terminal blocks 8 and 9 may be fitted on the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2530946A GB615964A (en) | 1946-08-23 | 1946-08-23 | Improvements in or relating to electric choke coils |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2530946A GB615964A (en) | 1946-08-23 | 1946-08-23 | Improvements in or relating to electric choke coils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB615964A true GB615964A (en) | 1949-01-13 |
Family
ID=10225615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2530946A Expired GB615964A (en) | 1946-08-23 | 1946-08-23 | Improvements in or relating to electric choke coils |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB615964A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2682644A (en) * | 1946-10-23 | 1954-06-29 | Wiremold Co | Duct and choke coil for fluorescent lighting units |
| DE977013C (en) * | 1950-02-02 | 1964-11-05 | Siemens Ag | Electrical capacitor to improve the power factor of fluorescent lamps |
-
1946
- 1946-08-23 GB GB2530946A patent/GB615964A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2682644A (en) * | 1946-10-23 | 1954-06-29 | Wiremold Co | Duct and choke coil for fluorescent lighting units |
| DE977013C (en) * | 1950-02-02 | 1964-11-05 | Siemens Ag | Electrical capacitor to improve the power factor of fluorescent lamps |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1428708A (en) | Ballast apparatus for operating a gaseous discharge device | |
| GB747736A (en) | Improvements in or relating to devices comprising a circuit of highly-permeable material and a permanent magnet for producing a pre-magnetizing field in said circuit | |
| ES422973A1 (en) | Electric transformers | |
| GB615964A (en) | Improvements in or relating to electric choke coils | |
| GB1350108A (en) | Coil former | |
| GB991918A (en) | Improvements in ballast inductors for discharge lamps | |
| GB660474A (en) | Improvements in or relating to choke coil assemblies for use in discharge lamp circuits | |
| GB1080320A (en) | Electrical transformers | |
| GB693288A (en) | Improvements in and relating to electric induction apparatus | |
| US3107317A (en) | Regulating ballast for fluorescent lamps | |
| GB647995A (en) | Improvements in or relating to current limiting devices or choke coils | |
| GB710719A (en) | Improvements in and relating to electric induction apparatus | |
| GB1021360A (en) | An electric choke | |
| GB879085A (en) | Improved bobbin for coils | |
| GB1158734A (en) | Laminated Core Inductive Devices | |
| GB887081A (en) | Improvements in and relating to laminated cores | |
| JPS5539136A (en) | No-electrode fluorescent lamp device | |
| GB1102772A (en) | Improvements in and relating to circuit for supplying gas discharge lamps | |
| SU468307A1 (en) | Current limiting transformer for power supply ion-heterogeneous vacuum pumps | |
| GB788222A (en) | Improvements in or relating to electromagnetic induction apparatus for fluorescent lamps | |
| GB880815A (en) | Improvements in or relating to electrical inductors | |
| GB643637A (en) | Improvements in or relating to ballasts for use in the circuits of electric discharge lamps | |
| GB1143912A (en) | Improvements relating to ferrite core assemblies | |
| GB660089A (en) | Improvements in and relating to electric induction devices particularly transformers | |
| GB939042A (en) | Improvements in ballast apparatus |