GB557061A - Improvements in or relating to photographic film apparatus such as a camera or optical projection apparatus - Google Patents
Improvements in or relating to photographic film apparatus such as a camera or optical projection apparatusInfo
- Publication number
- GB557061A GB557061A GB18611/42A GB1861142A GB557061A GB 557061 A GB557061 A GB 557061A GB 18611/42 A GB18611/42 A GB 18611/42A GB 1861142 A GB1861142 A GB 1861142A GB 557061 A GB557061 A GB 557061A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- spool
- spring
- camera
- arm
- 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
- G03B23/00—Devices for changing pictures in viewing apparatus or projectors
- G03B23/08—Devices for changing pictures in viewing apparatus or projectors in which pictures are attached to a movable carrier
- G03B23/12—Devices for changing pictures in viewing apparatus or projectors in which pictures are attached to a movable carrier linear strip carrier
-
- 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
- G03B19/02—Still-picture cameras
- G03B19/04—Roll-film cameras
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Cameras Including Film Mechanisms (AREA)
Abstract
557,061. Film cameras and projectors. KODAK, Ltd. Dec. 31, 1942, No. 18611. Convention date, Feb. 13, 1942. [Classes 97 (i) and 98 (i)] In a photographic film apparatus, such as a camera, or in a film projector, a manual winding member rotates a member engaging the film spool to unwind the film and pass it to a takeup chamber in which it coils upon itself, and at the same time tensions the spring of a motor which rotates the spool to re-wind the film on it after each exposure. In the camera shown, the film is first wound from the supply spool S into a take-up chamber 29 by the winding Handle 87, which through gearing rotates the driving-spindle 18 and also winds up a spring 35. Return of the film by the spring is prevented by a pawl 37 engaging the gear 34 and mounted on a spindle 41 which also carries an arm 39 adaptable to engage in slots 38 formed in the edge of the film and spaced at distances equal to the length of the film to be fed. The camera is provided with a shutter comprising a pair of arcuate oscillatable blades 7, 8 the latter of which carries a pivoted trip member 42 which, on the return of the shutter members after an exposure, trips the arm 39 and with it the pawl 37. The spring 35 then winds the film back on to the spool S until the mechanism is arrested by the arm 39 engaging the next slot in the film. The film is wider than the distance between the peripheries 22 of the spool flanges, and is caused to wind freely by being given a transverse curvature by a concave guide roller 24. The free end of the film is caused to coil upon itself in the chamber 29 by a leaf spring 30. An optical projection apparatus is described in which a film is similarly wound back on to the supply spool, a pivoted arm locking the mechanism when a pin carried by it engages a notch in the film and releasing it to feed the film when the pin is raised by a slide moved by a Bowden cable.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US557061XA | 1942-02-13 | 1942-02-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB557061A true GB557061A (en) | 1943-11-02 |
Family
ID=21999633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18611/42A Expired GB557061A (en) | 1942-02-13 | 1942-12-31 | Improvements in or relating to photographic film apparatus such as a camera or optical projection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB557061A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5590645A (en) * | 1990-03-02 | 1997-01-07 | Glaxo Group Limited | Inhalation device |
| US6536427B2 (en) | 1990-03-02 | 2003-03-25 | Glaxo Group Limited | Inhalation device |
| US6792945B2 (en) | 1990-03-02 | 2004-09-21 | Glaxo Group Limited | Inhalation device |
-
1942
- 1942-12-31 GB GB18611/42A patent/GB557061A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5590645A (en) * | 1990-03-02 | 1997-01-07 | Glaxo Group Limited | Inhalation device |
| US5860419A (en) * | 1990-03-02 | 1999-01-19 | Glaxo Group Limited | Inhalation device |
| US5873360A (en) * | 1990-03-02 | 1999-02-23 | Glaxo Group Limited | Inhalation device |
| US6032666A (en) * | 1990-03-02 | 2000-03-07 | Glaxo Group Limited | Inhalation device |
| US6536427B2 (en) | 1990-03-02 | 2003-03-25 | Glaxo Group Limited | Inhalation device |
| US6792945B2 (en) | 1990-03-02 | 2004-09-21 | Glaxo Group Limited | Inhalation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2360255A (en) | Automatic film winding mechanism | |
| GB558515A (en) | Improvements in or relating to photographic apparatus employing roll film | |
| GB557061A (en) | Improvements in or relating to photographic film apparatus such as a camera or optical projection apparatus | |
| GB1216573A (en) | Improvements in or relating to photographic or cinematographic cameras and to film cassettes therefor | |
| GB1216571A (en) | Photographic camera | |
| US3433143A (en) | Photographic camera | |
| US3075427A (en) | Film pressure guide for motion picture cameras | |
| ES349801A1 (en) | Film advancing and rewinding mechanism | |
| GB525112A (en) | Improvements in or relating to roll film photographic cameras | |
| GB921706A (en) | Method and apparatus for operating motion picture cameras without exchange of reels | |
| GB1034902A (en) | Demonstration roll-film magazine | |
| US1779468A (en) | Cinematographic camera | |
| US2664798A (en) | Camera body construction | |
| US2135984A (en) | Motor drive unit for cameras | |
| GB494527A (en) | Improvements in and relating to photographic hand cameras | |
| GB345549A (en) | Improvements in or relating to kinematograph projectors | |
| GB961969A (en) | Film counting mechanism for photographic cameras | |
| GB656685A (en) | Improvements in or relating to roll film photographic cameras | |
| GB736611A (en) | Improvements in stereoscopic photographic cameras | |
| GB656548A (en) | Improvements relating to photographic cameras | |
| US3281091A (en) | Film guiding structure for a motion picture camera | |
| GB1209247A (en) | Improvements in and relating to photographic exposure counters | |
| GB541642A (en) | Improvements in or relating to a roll film photographic camera | |
| GB144652A (en) | Magazine dark slide for photographic films | |
| GB872057A (en) | Improvements in or relating to photographic cameras |