GB191020756A - Improvements relating to Photographic Dark Slides - Google Patents
Improvements relating to Photographic Dark SlidesInfo
- Publication number
- GB191020756A GB191020756A GB191020756DA GB191020756A GB 191020756 A GB191020756 A GB 191020756A GB 191020756D A GB191020756D A GB 191020756DA GB 191020756 A GB191020756 A GB 191020756A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slide
- plate
- shutter
- rod
- indicate
- 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
- G03B17/26—Holders for containing light sensitive material and adapted to be inserted within the camera
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Displays For Variable Information Using Movable Means (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
- Indication In Cameras, And Counting Of Exposures (AREA)
Abstract
20,756. Reiser, H. Sept. 6. No Patent granted (Sealing fee not paid). Dark-slides. - A dark-slide is provided with means to indicate whether it contains a sensitive plate and also with means to indicate when the plate has been exposed. To the end or middle of a spring c, which holds the plate in position, is fixed an indicator f bearing the word ' charged ' which appears through a red glass window when the spring is compressed by the plate within the slide. To indicate exposure, a rod h pivoted at e to the slide bottom has a pin m positioned within a recess d on the shutter b adapted to be moved by the end of the shutter into the raised position in the Figure. When closing the shutter b, its end just clears the point m, thus leaving the rod h in the raised position and exhibiting some such word as 'exposed.' The rod h is re-set in its lower position by a button underneath the slide.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB191020756T | 1910-09-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB191020756A true GB191020756A (en) | 1911-05-04 |
Family
ID=32492740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB191020756D Expired GB191020756A (en) | 1910-09-06 | 1910-09-06 | Improvements relating to Photographic Dark Slides |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB191020756A (en) |
-
1910
- 1910-09-06 GB GB191020756D patent/GB191020756A/en not_active Expired
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