GB352294A - Improvements relating to cinematograph cameras - Google Patents
Improvements relating to cinematograph camerasInfo
- Publication number
- GB352294A GB352294A GB2392330A GB2392330A GB352294A GB 352294 A GB352294 A GB 352294A GB 2392330 A GB2392330 A GB 2392330A GB 2392330 A GB2392330 A GB 2392330A GB 352294 A GB352294 A GB 352294A
- Authority
- GB
- United Kingdom
- Prior art keywords
- turret
- barrel
- lens
- septum
- bush
- 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
- G03B19/18—Motion-picture cameras
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lens Barrels (AREA)
- Shutters For Cameras (AREA)
Abstract
352,294. Kinematograph cameras. ALLDRIDGE, R. S., 15, Wellington Road, Harrow, Middlesex. Aug. 9, 1930, No. 23923. [Class 97 (i).] In apparatus having a lens turret to enable lenses of different focal lengths to be rapidly interchanged, the camera front is provided with an aperture to receive the rear ends of the lens barrels or extensions thereof, and the barrels are mounted to slide axially in the turret so that any one of them can be pushed into the aperture when brought into register therewith. The turret consists of a disc 10 mounted on a boss 12 on the camera front 14 and carrying a number of lenses, of which only one is shown, the lens barrel 28 being slidable in a bush 30 fixed in a hole in the disc and having a rearward extension 32 fitting a hole 34 in the front 14. The barrel may be moved in or out of the hole by hand, but is preferably actuated by a nut 38 rotating freely on the bush 30 and engaging threaded projections 46 on the barrel, these projections being seated in slots 44 in the bush. The rearward movement of the barrel is limited by the engagement of a shoulder 48 thereon with an adjustable screwed-on ring 50. The lens assembly shown is of the kind described in Specifications 352,292 and 352,293, comprising two parallel objectives 54 for colour photography, and is provided with a septum 52, extending nearly to the shutter 56, for separating the two images on the film. With this arrangement the rear surface of the extension 32 is made flush with the rear edge of the septum, so that the turret cannot be rotated until the septum is withdrawn clear of the aperture 34.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2392330A GB352294A (en) | 1930-08-09 | 1930-08-09 | Improvements relating to cinematograph cameras |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2392330A GB352294A (en) | 1930-08-09 | 1930-08-09 | Improvements relating to cinematograph cameras |
Publications (1)
Publication Number | Publication Date |
---|---|
GB352294A true GB352294A (en) | 1931-07-09 |
Family
ID=10203488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2392330A Expired GB352294A (en) | 1930-08-09 | 1930-08-09 | Improvements relating to cinematograph cameras |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB352294A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1086995B (en) * | 1959-01-14 | 1960-08-11 | Zeiss Ikon Ag | Camera, preferably a film camera |
DE1087447B (en) * | 1959-07-03 | 1960-08-18 | Zeiss Carl Fa | Photographic cameras, in particular motion picture cameras |
-
1930
- 1930-08-09 GB GB2392330A patent/GB352294A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1086995B (en) * | 1959-01-14 | 1960-08-11 | Zeiss Ikon Ag | Camera, preferably a film camera |
DE1087447B (en) * | 1959-07-03 | 1960-08-18 | Zeiss Carl Fa | Photographic cameras, in particular motion picture cameras |
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