GB1068571A - A photomechanical copying camera - Google Patents
A photomechanical copying cameraInfo
- Publication number
- GB1068571A GB1068571A GB517464A GB517464A GB1068571A GB 1068571 A GB1068571 A GB 1068571A GB 517464 A GB517464 A GB 517464A GB 517464 A GB517464 A GB 517464A GB 1068571 A GB1068571 A GB 1068571A
- Authority
- GB
- United Kingdom
- Prior art keywords
- turret
- lens
- ratchet
- motor
- feb
- 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
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/52—Details
- G03B27/522—Projection optics
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Transmission Devices (AREA)
- Automatic Focus Adjustment (AREA)
Abstract
1,068,571. Lens turrets. SIDNEY R. LITTLEJOHN & CO. Ltd. Feb. 5, 1965 [Feb. 6, 1964], No. 5174/64. Heading G2J. A lens turret 1, for a photo-mechanical copying camera is spring biased to rotate in a clockwise direction as shown and is held in position by a ratchet 9 engaging stops 7, 6, 5 each associated with a lens 4, 3, 2. The turret is rotated against the spring by a motor driven cam 12 having lobes, one associated with each lens, which engage a pivoted member 14 driving a central pinion secured to the turret. A number of flats 21, 22, 23 on the shaft 11 control operation of the motor and are arranged to stop the motor shortly after a stop has passed the ratchet member 9. A second cam 13 is arranged to pivot the ratchet out of engagement with the stops to allow the turret to be rotated by its biasing spring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB517464A GB1068571A (en) | 1964-02-06 | 1964-02-06 | A photomechanical copying camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB517464A GB1068571A (en) | 1964-02-06 | 1964-02-06 | A photomechanical copying camera |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1068571A true GB1068571A (en) | 1967-05-10 |
Family
ID=9791093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB517464A Expired GB1068571A (en) | 1964-02-06 | 1964-02-06 | A photomechanical copying camera |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1068571A (en) |
-
1964
- 1964-02-06 GB GB517464A patent/GB1068571A/en not_active Expired
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