GB250323A - Improvements in and connected with photographic cameras - Google Patents
Improvements in and connected with photographic camerasInfo
- Publication number
- GB250323A GB250323A GB73025A GB73025A GB250323A GB 250323 A GB250323 A GB 250323A GB 73025 A GB73025 A GB 73025A GB 73025 A GB73025 A GB 73025A GB 250323 A GB250323 A GB 250323A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- camera
- plate
- released
- setting
- 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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/04—Bodies collapsible, foldable or extensible, e.g. book type
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Diaphragms For Cameras (AREA)
Abstract
250,323. Balston, C. C. Jan. 9, 1925. Iris diaphragms.-In a photographic camera the diaphragm setting lever 20, Fig. 13, is set for an exposure and held, as by the notched plate 16. against the action of means, such as a spring, which automatically returns the setting lever to an initial or standard setting when released from the holding means, as by mechanism operated on closing or opening the camera. The lever 20 is in the form of a resilient blade mounted in a movable housing 18 which latter is under the influence of a coiled spring 10, Fig. 7, on the lens mount. The lever 20 is released by the rotation of a controlling ring 33 behind the plate 16, and the consequent downward movement of another apertured plate 42, Fig. 10, having a shaped surface 42a. The ring 33 is rotated by a rod 54 actuated by trip mechanism 67 when the camera is folded up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB73025A GB250323A (en) | 1925-01-09 | 1925-01-09 | Improvements in and connected with photographic cameras |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB73025A GB250323A (en) | 1925-01-09 | 1925-01-09 | Improvements in and connected with photographic cameras |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB250323A true GB250323A (en) | 1926-04-09 |
Family
ID=9709523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB73025A Expired GB250323A (en) | 1925-01-09 | 1925-01-09 | Improvements in and connected with photographic cameras |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB250323A (en) |
-
1925
- 1925-01-09 GB GB73025A patent/GB250323A/en not_active Expired
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