GB901164A - Magnetic head for tape recorder - Google Patents
Magnetic head for tape recorderInfo
- Publication number
- GB901164A GB901164A GB3730159A GB3730159A GB901164A GB 901164 A GB901164 A GB 901164A GB 3730159 A GB3730159 A GB 3730159A GB 3730159 A GB3730159 A GB 3730159A GB 901164 A GB901164 A GB 901164A
- Authority
- GB
- United Kingdom
- Prior art keywords
- helix
- ring
- winding
- gap
- rings
- 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
- 238000004804 winding Methods 0.000 abstract 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 abstract 1
- 239000000696 magnetic material Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 238000007747 plating Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
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
- G11B5/10—Structure or manufacture of housings or shields for heads
- G11B5/105—Mounting of head within housing or assembling of head and housing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
901,164. Making magnetic heads. EPSYLON RESEARCH & DEVELOPMENT CO. Ltd. Nov. 2, 1960 [Nov. 3, 1959], No. 37301/59. Class 83 (2). [Also in Group XXXVIII] A method of making a magnetic head for a tape recorder comprises the steps of winding a strip 11 of magnetic material around a mandrel 12 to form a multi-turn helix, severing the wound helix in a direction parallel to the axis thereof to divide it into a number of separate rings having their ends spaced apart laterally, forming a winding 17 on each ring and then pressing the ends of each ring sideways towards each other to close the ring. After winding the helix and mandrel are clamped between jaws 13 and 14 and the helix is cut with a saw or abrasive disc 15. The winding 17 is on a flexible or pre-formed former 19 which may have cheeks. The gap 22 is at an angle to the plane of the ring equal to the helix angle of the original helix and the completed head may be mounted as shown in Fig. 8 so that the gap is transverse to the line of movement of the tape, or may be mounted with the plane of the ring parallel to the movement of the tape. The rings may be made of a high permeability alloy and annealed after forming and cutting, to restore their magnetic properties. The recording gap is provided by copper-plating the rings with a thickness of copper equal to half the width of the required recording gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3730159A GB901164A (en) | 1959-11-03 | 1959-11-03 | Magnetic head for tape recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3730159A GB901164A (en) | 1959-11-03 | 1959-11-03 | Magnetic head for tape recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB901164A true GB901164A (en) | 1962-07-18 |
Family
ID=10395389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3730159A Expired GB901164A (en) | 1959-11-03 | 1959-11-03 | Magnetic head for tape recorder |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB901164A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3249774A (en) * | 1961-06-23 | 1966-05-03 | Philips Corp | Stator for a small electric motor |
| EP0094382A4 (en) * | 1981-11-24 | 1984-05-17 | Eastman Technology | Multitrack magnetic head employing double helix structure and method of making same. |
-
1959
- 1959-11-03 GB GB3730159A patent/GB901164A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3249774A (en) * | 1961-06-23 | 1966-05-03 | Philips Corp | Stator for a small electric motor |
| EP0094382A4 (en) * | 1981-11-24 | 1984-05-17 | Eastman Technology | Multitrack magnetic head employing double helix structure and method of making same. |
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