GB713371A - Magnet core - Google Patents
Magnet coreInfo
- Publication number
- GB713371A GB713371A GB9912/52A GB991252A GB713371A GB 713371 A GB713371 A GB 713371A GB 9912/52 A GB9912/52 A GB 9912/52A GB 991252 A GB991252 A GB 991252A GB 713371 A GB713371 A GB 713371A
- Authority
- GB
- United Kingdom
- Prior art keywords
- april
- magnet core
- ges
- electrolytically
- akt
- 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
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/16—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/23—Gap features
- G11B5/235—Selection of material for gap filler
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Power Engineering (AREA)
- Magnetic Heads (AREA)
- Hard Magnetic Materials (AREA)
Abstract
713,371. Electromagnets. LOEWE OPTA AKT.-GES. April 21, 1952 [April 20, 1951], No. 9912/52. Class 35 A laminated core for an electromagnetic recording or reproducing head has a very narrow air gap produced by coating one or both of the opposite pole faces with cadmium by evaporation under vacuum, cathode splitting, or electrolytically.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL8817A DE893385C (en) | 1951-04-20 | 1951-04-20 | Process for the production of magnetic cores with a gap filled by a diamagnetic material, in particular for magnetic sound recording and reproduction |
Publications (1)
Publication Number | Publication Date |
---|---|
GB713371A true GB713371A (en) | 1954-08-11 |
Family
ID=7257721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9912/52A Expired GB713371A (en) | 1951-04-20 | 1952-04-21 | Magnet core |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE893385C (en) |
GB (1) | GB713371A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2949681A (en) * | 1958-01-04 | 1960-08-23 | Knefeli Vitus | Reckoner for demonstrating arithmetical calculations |
US3079470A (en) * | 1959-12-21 | 1963-02-26 | Armour Res Found | Magnetic transducer head |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE961662C (en) * | 1953-09-10 | 1957-04-11 | Telefunken Gmbh | Gap filling for magnetizing head |
DE1002459B (en) * | 1953-11-27 | 1957-02-14 | Telefunken Gmbh | Device for shielding magnetic fields |
DE1114335B (en) * | 1955-04-26 | 1961-09-28 | Standard App Fabrik G M B H | Magnetic head |
DE1046797B (en) * | 1956-10-17 | 1958-12-18 | Telefunken Gmbh | Magnetic core with a gap calibrated by an insert, in particular magnetic head for magnetic recording and / or playback of signals, e.g. B. for magnetic recorders |
-
1951
- 1951-04-20 DE DEL8817A patent/DE893385C/en not_active Expired
-
1952
- 1952-04-21 GB GB9912/52A patent/GB713371A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2949681A (en) * | 1958-01-04 | 1960-08-23 | Knefeli Vitus | Reckoner for demonstrating arithmetical calculations |
US3079470A (en) * | 1959-12-21 | 1963-02-26 | Armour Res Found | Magnetic transducer head |
Also Published As
Publication number | Publication date |
---|---|
DE893385C (en) | 1953-10-15 |
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