GB435474A - Improvements in the reproduction of sound films - Google Patents
Improvements in the reproduction of sound filmsInfo
- Publication number
- GB435474A GB435474A GB9172/34A GB917234A GB435474A GB 435474 A GB435474 A GB 435474A GB 9172/34 A GB9172/34 A GB 9172/34A GB 917234 A GB917234 A GB 917234A GB 435474 A GB435474 A GB 435474A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- liquid
- sound
- march
- reproduction
- 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
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/12—Cinematrographic processes of taking pictures or printing
- G03C5/14—Cinematrographic processes of taking pictures or printing combined with sound-recording
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
435,474. Optical sound -reproducing apparatus. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort - on - Main, Germany. March 23, 1934, No. 9172. Convention date, March 23, 1933. [Class 40 (ii)] A sound-film of the lenticular type is wetted with a non-inflammable liquid, (having substantially the same refractive index as that of the film), whilst or before it is passed through the reproducing-apparatus, noise due to friction caused by the embossed face of the film being thereby prevented or minimized. A volatile liquid, such as carbon tetrachloride, is preferably used ; or an oil which may be removed from the film by a solvent may be used. The liquid may be applied by a pad, roller, or nozzle.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE435474X | 1933-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB435474A true GB435474A (en) | 1935-09-23 |
Family
ID=6506774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9172/34A Expired GB435474A (en) | 1933-03-23 | 1934-03-23 | Improvements in the reproduction of sound films |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB435474A (en) |
-
1934
- 1934-03-23 GB GB9172/34A patent/GB435474A/en not_active Expired
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