GB633107A - Improvements in or relating to coils comprising a core of ferro-magnetic material - Google Patents
Improvements in or relating to coils comprising a core of ferro-magnetic materialInfo
- Publication number
- GB633107A GB633107A GB9584/47A GB958447A GB633107A GB 633107 A GB633107 A GB 633107A GB 9584/47 A GB9584/47 A GB 9584/47A GB 958447 A GB958447 A GB 958447A GB 633107 A GB633107 A GB 633107A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- cylinder
- ferro
- april
- replaced
- 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
- 239000003302 ferromagnetic material Substances 0.000 title 1
- 230000005294 ferromagnetic effect Effects 0.000 abstract 2
- 229910000859 α-Fe Inorganic materials 0.000 abstract 2
- 239000011230 binding agent Substances 0.000 abstract 1
- 238000007654 immersion Methods 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
- 239000004922 lacquer Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/043—Fixed inductances of the signal type with magnetic core with two, usually identical or nearly identical parts enclosing completely the coil (pot cores)
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
633,107. Transformers and inductances. PHILIPS LAMPS, Ltd. April 10, 1947, No. 9584. Convention date, April 13, 1946. [Class 38 (ii)] The core of an inductance or transformer, which consists of sintered ferro-magnetic ferrite material preferably as set out in Specification 626,946, is in the form of a pot comprising a cylinder 1, end discs 3, 5 and a central rod 7 with an air-gap between rod 7 and disc 3 in which can move an adjusting ferromagnetic member 13 which passes through a gap 11 ground or moulded in the, cylinder. Member 13 may be a layer of ferrite with a binder on a cardboard strip and may extend through holes in opposite sides of the cylinder. In manufacture,. the member 13 may be replaced by a slightly larger dummy member, the core with coil in place filled with insulating material by immersion, the member 15 replaced and fixed into place with lacquer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL633107X | 1946-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB633107A true GB633107A (en) | 1949-12-12 |
Family
ID=19788790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9584/47A Expired GB633107A (en) | 1946-04-13 | 1947-04-10 | Improvements in or relating to coils comprising a core of ferro-magnetic material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB633107A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1088626B (en) * | 1953-07-22 | 1960-09-08 | Siemens Ag | Sieve, mesh or comb-like shaped ferromagnetic adjusting piece for the introduction into the air gap of cores made of individual sheets for coils and transmitters |
| DE976763C (en) * | 1951-04-20 | 1964-04-16 | Siemens Ag | Magnetizable pot core for telecommunications coils |
-
1947
- 1947-04-10 GB GB9584/47A patent/GB633107A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE976763C (en) * | 1951-04-20 | 1964-04-16 | Siemens Ag | Magnetizable pot core for telecommunications coils |
| DE1088626B (en) * | 1953-07-22 | 1960-09-08 | Siemens Ag | Sieve, mesh or comb-like shaped ferromagnetic adjusting piece for the introduction into the air gap of cores made of individual sheets for coils and transmitters |
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