GB313584A - Improvements in or relating to magnetic materials - Google Patents
Improvements in or relating to magnetic materialsInfo
- Publication number
- GB313584A GB313584A GB27497/28A GB2749728A GB313584A GB 313584 A GB313584 A GB 313584A GB 27497/28 A GB27497/28 A GB 27497/28A GB 2749728 A GB2749728 A GB 2749728A GB 313584 A GB313584 A GB 313584A
- Authority
- GB
- United Kingdom
- Prior art keywords
- materials
- per cent
- iron
- another
- construction
- 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
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
- H01F1/0304—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions adapted for large Barkhausen jumps or domain wall rotations, e.g. WIEGAND or MATTEUCCI effect
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetic Treatment Devices (AREA)
- Burglar Alarm Systems (AREA)
Abstract
313,584. Electrical Research Products, Inc., (Assignees of Elmen, G. W.). June 15, 1928, [Convention date]. Cables with inductances. - A composite magnetic body comprises a number of materials in juxtaposition, one material having a higher permeability at low magnetizing forces and also lower coercivity than iron known under the registered Trade Mark "Armco," another material having very high coercivity. The free poles of the materials react upon one another. Separate portions may comprise hard steel and an iron nickel alloy, the nickel content being 30 to 80 per cent of the whole, or the nickel content of one of the materials can be 75 to 85 per cent and iron 15 to 25 per cent. In one construction, Fig. 1, a conductor comprises a core of piano wire 20 having a surrounding tube 21 of permalloy about 0.006 inch in thickness. Alternatively, a bundle of piano wire and permalloy wire bound with tape, varnish or material known under the registered Trade Mark as " Bakelite " can be employed. In another construction, Fig. 3, a laminated core comprises alternate sheets of different material about 0.014 inch in thickness. One or more airgaps 25 may be provided and these may be arranged in staggered formation. In another construction, Fig. 4, the materials are powdered, insulated, mixed together, and pressed into rings. Specifications 188,688; and 273,638, [Class 82 (i), Metals, Extracting &c.], are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US313584XA | 1928-06-15 | 1928-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB313584A true GB313584A (en) | 1929-12-27 |
Family
ID=21859005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27497/28A Expired GB313584A (en) | 1928-06-15 | 1928-09-25 | Improvements in or relating to magnetic materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB313584A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1195656B (en) * | 1955-06-30 | 1965-06-24 | Siemens Ag | Process for the production of magnetizable ferrite cores |
| DE3901792A1 (en) * | 1989-01-21 | 1990-08-09 | Philips Patentverwaltung | Toroidal (ring) core made of ferrite or iron powder |
-
1928
- 1928-09-25 GB GB27497/28A patent/GB313584A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1195656B (en) * | 1955-06-30 | 1965-06-24 | Siemens Ag | Process for the production of magnetizable ferrite cores |
| DE3901792A1 (en) * | 1989-01-21 | 1990-08-09 | Philips Patentverwaltung | Toroidal (ring) core made of ferrite or iron powder |
| DE3901792C2 (en) * | 1989-01-21 | 2002-06-20 | Lucent Technologies Inc | Toroidal core made of ferrite or iron powder material |
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