GB466446A - Improvements in or relating to optical sound-reproducing apparatus - Google Patents
Improvements in or relating to optical sound-reproducing apparatusInfo
- Publication number
- GB466446A GB466446A GB15109/36A GB1510936A GB466446A GB 466446 A GB466446 A GB 466446A GB 15109/36 A GB15109/36 A GB 15109/36A GB 1510936 A GB1510936 A GB 1510936A GB 466446 A GB466446 A GB 466446A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sound
- record
- film
- coil
- carried
- 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
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
Landscapes
- Moving Of Heads (AREA)
Abstract
466,446. Feeding and winding sound - record films. PINTSCH AKT.-GES., J. May 28, 1936, No. 15109. Convention date, July 15, 1935. [Class 97 (i)] [Also in Group XXXVIII] An endless sound-record film carrving a number of record tracks is carried in a coil 46 on a spool 45 having flanges 9, 44, is drawn from the interior thereof by a glass drum 3, carried by a shaft 37 having a pulley 38 driven by a belt from a motor 12, and returns to the outside of the coil. The film may have a notch 8 permitting a lever 7, engaging the film edge, to rise and free a pendulum 13 secured to a pivot pin 28 carrying the anchor member 14 of an escapement mechanism. The movement of the member 14 results in alteration of the incidence of the light-beam on the sound tracks.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE466446X | 1935-07-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB466446A true GB466446A (en) | 1937-05-28 |
Family
ID=6540537
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15109/36A Expired GB466446A (en) | 1935-07-15 | 1936-05-28 | Improvements in or relating to optical sound-reproducing apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB466446A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2539521A (en) * | 1944-05-19 | 1951-01-30 | Freeman H Owens | Projection machine |
US2543125A (en) * | 1944-05-19 | 1951-02-27 | Freeman H Owens | Projection machine film drive and rewinding mechanism |
-
1936
- 1936-05-28 GB GB15109/36A patent/GB466446A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2539521A (en) * | 1944-05-19 | 1951-01-30 | Freeman H Owens | Projection machine |
US2543125A (en) * | 1944-05-19 | 1951-02-27 | Freeman H Owens | Projection machine film drive and rewinding mechanism |
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