BE468509A - - Google Patents
Info
- Publication number
- BE468509A BE468509A BE468509DA BE468509A BE 468509 A BE468509 A BE 468509A BE 468509D A BE468509D A BE 468509DA BE 468509 A BE468509 A BE 468509A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/04—Feeding or guiding single record carrier to or from transducer unit
- G11B17/05—Feeding or guiding single record carrier to or from transducer unit specially adapted for discs not contained within cartridges
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/485—Direct positive emulsions
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/022—Positioning or locking of single discs
- G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
- G11B17/032—Positioning by moving the door or the cover
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/02—Arrangements of heads
- G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
- G11B3/085—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers using automatic means
- G11B3/08503—Control of drive of the head
- G11B3/08506—Control of drive of the head for pivoting pick-up arms
- G11B3/08509—Control of drive of the head for pivoting pick-up arms using mechanical detecting means
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1690939A GB533356A (en) | 1939-06-09 | 1939-06-09 | Improvements in or relating to apparatus for playing gramophone records |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE468509A true BE468509A (pt) |
Family
ID=10085862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE468509D BE468509A (pt) | 1939-06-09 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE468509A (pt) |
| FR (1) | FR950283A (pt) |
| GB (1) | GB533356A (pt) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1068909B (pt) * | 1959-11-12 | |||
| US4493069A (en) * | 1983-01-27 | 1985-01-08 | The Quaker Oats Company | Phonograph |
-
0
- BE BE468509D patent/BE468509A/xx unknown
-
1939
- 1939-06-09 GB GB1690939A patent/GB533356A/en not_active Expired
-
1946
- 1946-08-28 FR FR950283D patent/FR950283A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR950283A (fr) | 1949-09-22 |
| GB533356A (en) | 1941-02-12 |