GB474510A - Improvements in or relating to pivoted or rotating shutter blades for photographic apparatus - Google Patents
Improvements in or relating to pivoted or rotating shutter blades for photographic apparatusInfo
- Publication number
- GB474510A GB474510A GB617037A GB617037A GB474510A GB 474510 A GB474510 A GB 474510A GB 617037 A GB617037 A GB 617037A GB 617037 A GB617037 A GB 617037A GB 474510 A GB474510 A GB 474510A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pivoted
- rotating shutter
- relating
- blade
- shutter blades
- 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
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/08—Shutters
- G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
- G03B9/18—More than two members
- G03B9/22—More than two members each moving in one direction to open and then in opposite direction to close, e.g. iris type
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Shutters For Cameras (AREA)
Abstract
474,510. Making optical shutters. JUNGHANS, H. March 2, 1937, No. 6170. [Class 83 (ii)] [Also in Group XX] The blade for a pivoted or rotating shutter is stamped from a strip of metal which is thicker at one edge than at the other and has one flat or plane face. The point of insertion a for the actuating pin and the bearing bare provided in the thick portion c<10> of the tapered blade c<1>, which may have one or both faces plane. In Fig. 4, a thickened portion d is provided for the attachment and bearing apertures a, b, the remainder of the blade being tapered.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB617037A GB474510A (en) | 1937-03-02 | 1937-03-02 | Improvements in or relating to pivoted or rotating shutter blades for photographic apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB617037A GB474510A (en) | 1937-03-02 | 1937-03-02 | Improvements in or relating to pivoted or rotating shutter blades for photographic apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB474510A true GB474510A (en) | 1937-11-02 |
Family
ID=9809684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB617037A Expired GB474510A (en) | 1937-03-02 | 1937-03-02 | Improvements in or relating to pivoted or rotating shutter blades for photographic apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB474510A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4401380A (en) * | 1977-10-31 | 1983-08-30 | Nippon Kogaku K.K. | Blade for focal plane shutter |
-
1937
- 1937-03-02 GB GB617037A patent/GB474510A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4401380A (en) * | 1977-10-31 | 1983-08-30 | Nippon Kogaku K.K. | Blade for focal plane shutter |
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