US1736826A - Colored film - Google Patents
Colored film Download PDFInfo
- Publication number
- US1736826A US1736826A US262903A US26290328A US1736826A US 1736826 A US1736826 A US 1736826A US 262903 A US262903 A US 262903A US 26290328 A US26290328 A US 26290328A US 1736826 A US1736826 A US 1736826A
- Authority
- US
- United States
- Prior art keywords
- film
- perforations
- colored film
- emulsion
- colored
- 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 - Lifetime
Links
- 239000000839 emulsion Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 101100165798 Arabidopsis thaliana CYP86A1 gene Proteins 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Images
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
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/22—Subtractive cinematographic processes; Materials therefor; Preparing or processing such materials
Definitions
- T e single figure of the drawing shows a film A to which has been applied the usual coating.
- the small circular opening 1 around which the material 2 is to be removed produces in the finished film the oval opening 3.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Description
' Nov. 26, 1929. L. HORST 1,736,826
- COLORED FILM Filed March 19. 1928 G O p cy" o I o o r I.) I W I l @1 @122 ca e a ca 6 1 6. 3 I 0 (Eli cal El 9 a INVENTOR. I. floral ATTORNEYS.
Patented Nov. 26, 1929 PATENT OFFICE LUDWIG HORST, F BERLIN-WILMERSDORF, GERMANY COLORED FILM Application filed March 19, 1928, Serial No. 262,903, and in Germany March 18,1927.
My invention relates to a method of producing colored films.
In the production of three-color films the difficulty arises that the three partial pictures do not register accurately so that when the pictures are projected on the screen the pictures show colored edges. This drawback is traceable to the fact that in the manufacture of the film the customary oblong perforations are provided in the edges for feeding it forward, in which the gripper pins have a certain amount of play. During the repeated coating of the film strip with emulsion the strip itself is subject to variations in size and this in con'unction with the play of the pins in the per orations then leads to an inaccurate register of the partial pictures.
The object of my invention is to eliminate this drawback and to provide a method of producing a film which is free from the above recited objection In producing a three-color film according to my invention a positive film coated with an emulsion on both sides is first provided with circular perforations, the diameter of these'perforations being less than the height of the normal perforations. During the application of the partial'pi'ctures upon the two layers the film strip isfed forward by pairs of grippers the pins of which are of circular cross-section and pointed at the free ends. The pins fit accurately into the perforations, so that an accurate register of the partial pictures is ensured with certainty. The film prepared so far is then provided with the third layer of emulsion and then only the normal perforations eing then propelled by the customary gripper Ems.
T e single figure of the drawing shows a film A to which has been applied the usual coating. The small circular opening 1 around which the material 2 is to be removed produces in the finished film the oval opening 3.
Various modifications and changes may be made without departing from the spirit and the scope of the invention, and I desire, therefore, that only such limitations shall be placed thereon as are imposed by the prior art. 60 I claim as my invention:
are punched into it, the film The method of producing a three-color film, which consists in providing a positive film coated with emulsion on both sides with circular perforations of a smaller diameter than the height of the normal perforations, finishing the two-color picture, applying the third layer of emulsion, and finally punching out the normal perforations.
In testimony whereof I have afiixed my sig-,
nature.
LUDWIG HORST.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1736826X | 1927-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1736826A true US1736826A (en) | 1929-11-26 |
Family
ID=7741205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US262903A Expired - Lifetime US1736826A (en) | 1927-03-18 | 1928-03-19 | Colored film |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1736826A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2480941A (en) * | 1946-01-18 | 1949-09-06 | Burndept Ltd | Composite receptacle for flat cells and method of making |
-
1928
- 1928-03-19 US US262903A patent/US1736826A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2480941A (en) * | 1946-01-18 | 1949-09-06 | Burndept Ltd | Composite receptacle for flat cells and method of making |
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