GB541852A - Improvements in roll film cameras - Google Patents
Improvements in roll film camerasInfo
- Publication number
- GB541852A GB541852A GB11502/40A GB1150240A GB541852A GB 541852 A GB541852 A GB 541852A GB 11502/40 A GB11502/40 A GB 11502/40A GB 1150240 A GB1150240 A GB 1150240A GB 541852 A GB541852 A GB 541852A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- roll
- camera
- opening
- roll film
- 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
- G03B19/00—Cameras
- G03B19/02—Still-picture cameras
- G03B19/04—Roll-film cameras
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Cameras Including Film Mechanisms (AREA)
Abstract
541,852. Roll-film cameras. ZEISS IKON AKT.-GES. July 10, 1940, No. 11502. Convention date, Nov. 18, 1938. [Class 98 (i)] To indicate whether a roll-film camera, especially one unprovided with a film number exposing window, is loaded with film or not, an opening 1 is provided in the rear wall through which a marking 5 is visible when no film is in the camera, the film when in position covering the mark, which may be carried by the frame bounding the exposure aperture. The opening is covered by a non-actinic window, and, as shown is closed by a spring-urged slide 2 movable by a button to open it.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE541852X | 1938-11-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB541852A true GB541852A (en) | 1941-12-15 |
Family
ID=6559429
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11502/40A Expired GB541852A (en) | 1938-11-18 | 1940-07-10 | Improvements in roll film cameras |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB541852A (en) |
-
1940
- 1940-07-10 GB GB11502/40A patent/GB541852A/en not_active Expired
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