GB616842A - Improvements in and relating to photographic apparatus - Google Patents
Improvements in and relating to photographic apparatusInfo
- Publication number
- GB616842A GB616842A GB2352646A GB2352646A GB616842A GB 616842 A GB616842 A GB 616842A GB 2352646 A GB2352646 A GB 2352646A GB 2352646 A GB2352646 A GB 2352646A GB 616842 A GB616842 A GB 616842A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- barrel
- lead screw
- gun barrel
- optical system
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A31/00—Testing arrangements
- F41A31/02—Testing arrangements for checking gun barrels
Abstract
616,842. Photographic cameras. WHITAKER, H. S., and MITCHELL, S. S. C. Aug. 8, 1946, No. 23526. [Class 98 (i)] An uninterrupted image of the interior surface of a pipe or tube is made by producing a relative longitudinal and rotational movement between such surface and an optical system so as to scan the surface progressively and to transfer the image to a photographic film arranged in the form of a cylinder or tube. As used for examination of a Browning Aircraft machine gun barrel the optical system consists of a tube 1, Fig. 1, thirty-six inches long and of a diameter to fit into the barrel, provided with a pea lamp 4 and scanning prism 2 at one end and a transferring prism 3 masked by a semicylindrical mask 6 with a helical slot 7 at the other end and lenses 5 between; and this assembly is attached by screw thread 18 to a lead screw 19, Fig. 2, which is revolved by chain driven sprocket 22 with a key 23 acting in a longitudinal slot in the lead screw which is itself in screw thread engagement with flanged nut 20 and so driven in helix form into the gun barrel (not shown). The lamp 4 is lit with the aid of contacts in the lead screw and the rays from the helical slot 7 are caused to act on a strip of film arranged in the form of a tube of diameter of the gun barrel and contained in a cassette which is held in alignment with the barrel and at the further end of it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2352646A GB616842A (en) | 1946-08-08 | 1946-08-08 | Improvements in and relating to photographic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2352646A GB616842A (en) | 1946-08-08 | 1946-08-08 | Improvements in and relating to photographic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB616842A true GB616842A (en) | 1949-01-27 |
Family
ID=10197060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2352646A Expired GB616842A (en) | 1946-08-08 | 1946-08-08 | Improvements in and relating to photographic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB616842A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2737864A (en) * | 1951-11-09 | 1956-03-13 | Robert P Gutterman | Borehole camera |
| US2894436A (en) * | 1953-09-18 | 1959-07-14 | Lytax Werke Gmbh | Camera for photographing the inner surface of a hollow body |
-
1946
- 1946-08-08 GB GB2352646A patent/GB616842A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2737864A (en) * | 1951-11-09 | 1956-03-13 | Robert P Gutterman | Borehole camera |
| US2894436A (en) * | 1953-09-18 | 1959-07-14 | Lytax Werke Gmbh | Camera for photographing the inner surface of a hollow body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS4932484U (en) | ||
| GB616842A (en) | Improvements in and relating to photographic apparatus | |
| US2339503A (en) | Motion picture projector | |
| GB987861A (en) | Illumination device for photographic purposes, in particular electronic flashlight apparatus | |
| JPS534418A (en) | Pick up unit | |
| US1874193A (en) | Apparatus for projecting motion pictures | |
| JPS54111218A (en) | Image pickup unit | |
| SU91321A1 (en) | Camera Reproduction Console | |
| SU123999A1 (en) | Optical head of compact television camera for viewing tubes | |
| JPS5775069A (en) | Television camera | |
| FR2250124A1 (en) | Low cost roll film viewing device - constructed to imitate camera has lens through which pictures are viewed | |
| SU125334A1 (en) | Bronchoscope | |
| GB374237A (en) | A new or improved lens mount for photographic cameras and the like | |
| SU107502A1 (en) | Rapid motion picture camera with continuous film motion and slit obturator | |
| GB592537A (en) | View-finders and shutters for motion picture cameras | |
| SU49814A1 (en) | Attachment to the film chamber for focusing on the frosted glass | |
| GB591695A (en) | Improvements relating to photographic cameras | |
| GB649698A (en) | Improvements in and relating to cinematograph projectors | |
| GB805226A (en) | Improvements in or relating to optical projectors | |
| GB734237A (en) | Improvements in or relating to photographic and cinematographic apparatus | |
| GB619907A (en) | Improvements in and relating to continuous feed kinematograph projectors | |
| GB590981A (en) | Improvements in or relating to photomicrographic cameras | |
| GB588345A (en) | An improved film-feed indicator for kinematograph projectors | |
| GB822053A (en) | Improvements in or relating to optical projectors and enlargers | |
| GB775493A (en) | Improvements relating to viewing arrangements |