GB1365131A - Magnetic heads - Google Patents
Magnetic headsInfo
- Publication number
- GB1365131A GB1365131A GB5184071A GB5184071A GB1365131A GB 1365131 A GB1365131 A GB 1365131A GB 5184071 A GB5184071 A GB 5184071A GB 5184071 A GB5184071 A GB 5184071A GB 1365131 A GB1365131 A GB 1365131A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nov
- magnetic
- plates
- rod
- cores
- 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
- 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
- G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
- G11B5/295—Manufacture
-
- 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
- G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
1365131 Magnetic transducers MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 8 Nov 1971 [7 Nov 1970 10 Nov 1970 16 Nov 1970 (2) 17 Nov 1970 24 March 1971] 51840/71 Heading G5R A multi-track magnetic head assembly comprises a plurality of annular magnetic cores 20, each having a non-magnetic gap 21 and a oneturn winding in the form of a conductive rod 24 extending through the opening 23 of the core 20 and in electrical contact with conductive plates 25 disposed on opposite sides of the core 20. The rod 24 may be common to all the heads. The adjacent plates 25 of adjacent heads are separated by insulating layers 26, which may be of magnetic material to form magnetic shields. The adjacent plates 25 may, as shown, lie in parallel planes, or, Fig. 10 (not shown), in the same plane. The plates 25 may have a recess (33), Fig. 6 (not shown) or an opening (34), Fig. 7 (not shown), to accommodate the rod 24. The plates 25 may alternatively be L-shaped, Figs. 8, 9 (not shown), in a staggered arrangement. The magnetic cores 20 may have a sufficiently high electrical resistance to render insulation between the cores 20 and the rod 24 unnecessary. Methods of manufacturing such assemblies are disclosed in Specification 1,356,814.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9858370A JPS5023971B1 (en) | 1970-11-07 | 1970-11-07 | |
JP11226370U JPS5019795Y1 (en) | 1970-11-10 | 1970-11-10 | |
JP10174570A JPS5018766B1 (en) | 1970-11-16 | 1970-11-16 | |
JP10174670 | 1970-11-16 | ||
JP10159470 | 1970-11-17 | ||
JP1742071A JPS5311844B1 (en) | 1971-03-24 | 1971-03-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1365131A true GB1365131A (en) | 1974-08-29 |
Family
ID=27548723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5184071A Expired GB1365131A (en) | 1970-11-07 | 1971-11-08 | Magnetic heads |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1365131A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4569492A (en) * | 1982-09-13 | 1986-02-11 | Shape Inc. | Tape cassette pressure flap assembly |
US4606513A (en) * | 1984-05-31 | 1986-08-19 | Shape Inc. | Tape cassette pressure flap assembly |
-
1971
- 1971-11-08 GB GB5184071A patent/GB1365131A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4569492A (en) * | 1982-09-13 | 1986-02-11 | Shape Inc. | Tape cassette pressure flap assembly |
US4606513A (en) * | 1984-05-31 | 1986-08-19 | Shape Inc. | Tape cassette pressure flap assembly |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |