GB324697A - Improvements in or relating to the reproduction of sound in association with picture projection - Google Patents
Improvements in or relating to the reproduction of sound in association with picture projectionInfo
- Publication number
- GB324697A GB324697A GB3151728A GB3151728A GB324697A GB 324697 A GB324697 A GB 324697A GB 3151728 A GB3151728 A GB 3151728A GB 3151728 A GB3151728 A GB 3151728A GB 324697 A GB324697 A GB 324697A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- sound
- roll
- driven
- lamp
- 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
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Abstract
324,697. Koch, R. von. Oct. 30, 1928. Sound-reproducing apparatus associated with kinematographs.-In the reproduction of sounds and pictures from films, an auxiliary sound film is provided to reproduce special sounds, the apparatus being arranged to permit reproduction from either of the sound films. As shown in Fig. 1, the main sound film 5 is guided over rolls 6 driven from the picture projector 3 and is reproduced by a beam from a lamp 8 directed through the film and an optical system 9 on to a selenium cell 10. The auxiliary sound film 18 is guided over a roll 16, and when it is desired to reproduce from this film, a clutch 19 is moved so that the roll 16 is driven and the lamp 8, optical system 9, and cell 10 are swung round to the dotted positions 8<1>, 9<1>, 10<1>. In a modification, the clutch 19 is dispensed with and the auxiliary film is driven by closure of its film gate which causes a guide-roll thereon to press the film against a driven roll. Further, the lamp 8, optical system 9, and cell 10, may be duplicated and the necessary lamp switched in according to the film to be reproduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3151728A GB324697A (en) | 1928-10-30 | 1928-10-30 | Improvements in or relating to the reproduction of sound in association with picture projection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3151728A GB324697A (en) | 1928-10-30 | 1928-10-30 | Improvements in or relating to the reproduction of sound in association with picture projection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB324697A true GB324697A (en) | 1930-01-30 |
Family
ID=10324259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3151728A Expired GB324697A (en) | 1928-10-30 | 1928-10-30 | Improvements in or relating to the reproduction of sound in association with picture projection |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB324697A (en) |
-
1928
- 1928-10-30 GB GB3151728A patent/GB324697A/en not_active Expired
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