GB832426A - Improved magnetic head - Google Patents
Improved magnetic headInfo
- Publication number
- GB832426A GB832426A GB30289/57A GB3028957A GB832426A GB 832426 A GB832426 A GB 832426A GB 30289/57 A GB30289/57 A GB 30289/57A GB 3028957 A GB3028957 A GB 3028957A GB 832426 A GB832426 A GB 832426A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coils
- core
- link
- flux
- portions
- 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
- G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
-
- 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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/52—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with simultaneous movement of head and record carrier, e.g. rotation of head
- G11B5/53—Disposition or mounting of heads on rotating support
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
832,426. Magnetic recording and reproducing heads. BURROUGHS CORPORATION. Sept. 27, 1957 [Oct. 22, 1956; May 17, 1957], No. 30289/57. Class 40 (2). A magnetic head for simultaneous recording and reproducing has a core with a portion common to two separate flux paths each of which has a high reluctance gap, recording and reproducing coils wound on separate portions, each of the portions being associated with one path only, and means for eliminating any net flux linking the coils. In the first embodiment, Fig. 1, the core comprises a U-shaped part 10 carrying a coil 22 and an E-shaped part 14 carrying a coil 24 on the middle limb. The two parts 10, 14 are joined by an intermediate portion 16 to form signal gaps 18, 20 associated respectively with the signal coils 22, 24. The arrangement is in effect a magnetic bridge circuit, Fig. 2 (not shown), which may be roughly balanced by notching the core as indicated at 31, and finally balanced by an adjustable shunt in the form of a screw 26. The arrangement of the coils at right angles to each other reduces the effect of external fields. In an alternative embodiment, Fig. 3, the core has three substantially parallel branch portions, the central branch being divided. Shorting coils 56, 58 associated with coils 50, 52, respectively, are provided which each link one particular portion each of the divided branch portions. Thus two flux paths are provided which do not link either of the shorting coils, but do link the signal coils 50, 52 and there is thus no interaction between changes of flux in the two flux paths. Fig. 4 shows a combination of the arrangements of Figs. 1 and 3.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US832426XA | 1956-10-22 | 1956-10-22 | |
US659779A US2969529A (en) | 1957-05-17 | 1957-05-17 | Magnetic read-write head having two gaps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB832426A true GB832426A (en) | 1960-04-13 |
Family
ID=26769091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30289/57A Expired GB832426A (en) | 1956-10-22 | 1957-09-27 | Improved magnetic head |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH355303A (en) |
DE (1) | DE1072830B (en) |
FR (1) | FR1181091A (en) |
GB (1) | GB832426A (en) |
NL (1) | NL125946C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4868510U (en) * | 1971-11-30 | 1973-08-31 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3233046A (en) * | 1960-11-04 | 1966-02-01 | William D Moehring | Magnetic head assembly |
US3187111A (en) * | 1961-01-23 | 1965-06-01 | Ampex | Magnetic recording heads with monitor of recorded signal |
JPS59121613A (en) * | 1982-12-28 | 1984-07-13 | Toshiba Corp | Magnetic head device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2475421A (en) * | 1945-05-30 | 1949-07-05 | Armour Res Found | Combined erasing and recording magnetic transducer |
-
0
- NL NL125946D patent/NL125946C/xx active
- DE DENDAT1072830D patent/DE1072830B/en active Pending
-
1957
- 1957-08-12 CH CH355303D patent/CH355303A/en unknown
- 1957-08-12 FR FR1181091D patent/FR1181091A/en not_active Expired
- 1957-09-27 GB GB30289/57A patent/GB832426A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4868510U (en) * | 1971-11-30 | 1973-08-31 |
Also Published As
Publication number | Publication date |
---|---|
NL125946C (en) | |
DE1072830B (en) | 1960-01-07 |
FR1181091A (en) | 1959-06-11 |
CH355303A (en) | 1961-06-30 |
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