GB1184823A - Method of Producing Multi-Track, Single or Multi-Gap, Ferritic Magnetic Reproducing and Recording Heads - Google Patents
Method of Producing Multi-Track, Single or Multi-Gap, Ferritic Magnetic Reproducing and Recording HeadsInfo
- Publication number
- GB1184823A GB1184823A GB1172267A GB1172267A GB1184823A GB 1184823 A GB1184823 A GB 1184823A GB 1172267 A GB1172267 A GB 1172267A GB 1172267 A GB1172267 A GB 1172267A GB 1184823 A GB1184823 A GB 1184823A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mouldings
- gap
- track
- heads
- magnetic
- 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
- G11B5/1272—Assembling or shaping of elements
-
- 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
1,184,823. Making multi-track magnetic recording and reproducing heads. INSTYTUT MASZYN MATEMATYCZNYCH. 13 March, 1967 [12 March, 1966; 17 Jan., 1967], No. 11722/67. Heading G5R. A method of producing multi-track, single or multigap ferritic magnetic heads for recording and reproducing, comprises the steps of grinding at least two ferritic mouldings to a predetermined shape, aligning the mouldings apart to define an operational gap, pouring a liquid bonding material prepared from pulverized glass into the gap to form a glass bond between the two mouldings, gluing the bonded mouldings to a plate 8, carrying out machining operations on the mouldings including cutting the mouldings to form elementary heads disposed in tracks and each comprising two cores each of which has a magnetic pole adjacent the gap and a narrowed portion for a coil, positioning on the mouldings components including coils 11, screens 12, 14, anti-magnetic spacers 15, and armatures (16), Fig. 4 (not shown), covering the assembled unit with an epoxy resin, removing the plate 8, mounting the assembled unit in a housing 20, and removing excess material beyond an axis 4 to magnetically separate the elementary heads and shape the front of the multi-track head.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL113464A PL54159B1 (en) | 1966-03-12 | ||
PL118532A PL55826B1 (en) | 1967-01-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1184823A true GB1184823A (en) | 1970-03-18 |
Family
ID=26652799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1172267A Expired GB1184823A (en) | 1966-03-12 | 1967-03-13 | Method of Producing Multi-Track, Single or Multi-Gap, Ferritic Magnetic Reproducing and Recording Heads |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE695332A (en) |
DE (1) | DE1524778A1 (en) |
FR (1) | FR1514537A (en) |
GB (1) | GB1184823A (en) |
NL (1) | NL6703780A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0116450A2 (en) * | 1983-02-08 | 1984-08-22 | Ampex Corporation | A monolithic multichannel multistack magnetic transducer assembly and method of manufacturing thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3544982A (en) * | 1968-05-01 | 1970-12-01 | Rca Corp | Multi-head magnetic transducer |
-
1967
- 1967-03-10 BE BE695332D patent/BE695332A/xx unknown
- 1967-03-10 FR FR98237A patent/FR1514537A/en not_active Expired
- 1967-03-13 NL NL6703780A patent/NL6703780A/xx unknown
- 1967-03-13 GB GB1172267A patent/GB1184823A/en not_active Expired
- 1967-03-13 DE DE19671524778 patent/DE1524778A1/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0116450A2 (en) * | 1983-02-08 | 1984-08-22 | Ampex Corporation | A monolithic multichannel multistack magnetic transducer assembly and method of manufacturing thereof |
EP0116450A3 (en) * | 1983-02-08 | 1987-01-14 | Ampex Corporation | A monolithic multichannel multistack magnetic transducer assembly and method of manufacturing thereof |
Also Published As
Publication number | Publication date |
---|---|
FR1514537A (en) | 1968-02-23 |
DE1524778A1 (en) | 1970-10-08 |
NL6703780A (en) | 1967-09-13 |
BE695332A (en) | 1967-08-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
429A | Application made for amendment of specification (sect. 29/1949) | ||
429D | Case decided by the comptroller ** specification amended (sect. 29/1949) | ||
429H | Application (made) for amendment of specification now open to opposition (sect. 29/1949) |
Free format text: INPADOC CORRECTION: JOURNAL 4256, PAGE 3200 FOR 184823 READ 1184823 |
|
PLNP | Patent lapsed through nonpayment of renewal fees |