GB368852A - Improvements in the manufacture of sound films - Google Patents
Improvements in the manufacture of sound filmsInfo
- Publication number
- GB368852A GB368852A GB27626/31A GB2762631A GB368852A GB 368852 A GB368852 A GB 368852A GB 27626/31 A GB27626/31 A GB 27626/31A GB 2762631 A GB2762631 A GB 2762631A GB 368852 A GB368852 A GB 368852A
- Authority
- GB
- United Kingdom
- Prior art keywords
- emulsion
- sensitizing
- films
- gelatine
- sept
- 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)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
368,852. Kinematograph films; photosensitive layers. SCHINZEL, K., 4, Beethoven Place, Troppau, Silesia, Czecho - Slovakia, Sept. 4, 1930, No. 27626/31. Convention date, Sept. 4, 1929. Divided on 369,221. [Class 98 (ii).] In making photographic sound records, films are used having a highly sensitized grainless or very finely grained emulsion, such as a Lippmann emulsion with a size of grains between À1 to À5 microns. The sensitizing may be effected bv means of ammonia and dissolved silver salts with the addition of sensitizing dyes such as eosine or pinaflavol. The emulsion is protected by a layer of gelatine, casein, dextrin, &c., permeable by the developer. Specification 369,221 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) on the 5th October, 1931, refers also to the use of hydrogen peroxide and isocyanines for sensitizing the emulsion. It further states that the protecting layer of gelatine &c., or an intermediate film between the carrier and the emulsion, for preventing halation, are preferably coloured with red or other dyes that can easily be decoloured or washed out. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE368852X | 1929-09-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB368852A true GB368852A (en) | 1932-03-04 |
Family
ID=6318140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27626/31A Expired GB368852A (en) | 1929-09-04 | 1930-09-04 | Improvements in the manufacture of sound films |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB368852A (en) |
-
1930
- 1930-09-04 GB GB27626/31A patent/GB368852A/en not_active Expired
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