GB319680A - Improvements in and relating to reproducing magnets for telegraphones - Google Patents
Improvements in and relating to reproducing magnets for telegraphonesInfo
- Publication number
- GB319680A GB319680A GB10930/29A GB1093029A GB319680A GB 319680 A GB319680 A GB 319680A GB 10930/29 A GB10930/29 A GB 10930/29A GB 1093029 A GB1093029 A GB 1093029A GB 319680 A GB319680 A GB 319680A
- Authority
- GB
- United Kingdom
- Prior art keywords
- enlargement
- wire
- disc
- plates
- magnets
- 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
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/60—Guiding record carrier
- G11B15/602—Guiding record carrier for track selection, acquisition or following
-
- 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
- G11B5/54—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 provision for moving the head into or out of its operative position or across tracks
Landscapes
- Magnetic Heads (AREA)
- Wire Processing (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
319,680. Stille, C. April 9, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 27, 1929]. No Patent granted (Sealing fee not paid). Electromagnetic apparatus.-Telegraphone reproducing heads are constructed so that the passage for the record wire between the magnets is automatically increased to permit passage of an enlargement such as might be produced in riveting or welding the wire after removal of a portion, as for example in resynchronizing it with a repaired picture film. The plates 3, 4, which carry the magnets 5, 6 and are spaced to provide a passage for the record wire 2, are mounted on right and left-handed screws 7<1>, 7<11> and 8<1>, 8<11> on discs 7, 8. The wire enters the head at a funnelshaped inlet and any enlargement 1 thereon contacts and rotates the disc 7 which is geared by toothed segments 11, 12 with the disc 8, and thereby separates the plates 3, 4 to allow the enlargement to pass until this, acting on the disc 8, returns the plates to normal position again as the enlargement passes from the head.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1828260X | 1928-09-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB319680A true GB319680A (en) | 1930-07-09 |
Family
ID=9976925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10930/29A Expired GB319680A (en) | 1928-09-26 | 1929-04-09 | Improvements in and relating to reproducing magnets for telegraphones |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1828260A (en) |
| DE (1) | DE564538C (en) |
| FR (1) | FR681287A (en) |
| GB (1) | GB319680A (en) |
| NL (1) | NL28943C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2723315A (en) * | 1948-11-05 | 1955-11-08 | Indiana Steel Products Co | Method and means for duplicating magnetic records by magnetic transfer phenomenon |
| US2747026A (en) * | 1948-11-18 | 1956-05-22 | Armour Res Found | Recording apparatus and method for making duplicate magnetic records |
| US2677019A (en) * | 1951-12-22 | 1954-04-27 | Bell Telephone Labor Inc | Magnetic head and method of making same |
| ZA4105B (en) * | 1953-08-14 |
-
1928
- 1928-10-24 DE DE1928564538D patent/DE564538C/en not_active Expired
-
1929
- 1929-04-09 GB GB10930/29A patent/GB319680A/en not_active Expired
- 1929-04-12 US US354684A patent/US1828260A/en not_active Expired - Lifetime
- 1929-09-04 FR FR681287D patent/FR681287A/en not_active Expired
- 1929-09-24 NL NL48168A patent/NL28943C/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| NL28943C (en) | 1933-02-15 |
| DE564538C (en) | 1932-11-19 |
| FR681287A (en) | 1930-05-13 |
| US1828260A (en) | 1931-10-20 |
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