GB721992A - Improvements in or relating to apparatus for scanning cinematograph film, for the purpose of generating or recording television signals - Google Patents
Improvements in or relating to apparatus for scanning cinematograph film, for the purpose of generating or recording television signalsInfo
- Publication number
- GB721992A GB721992A GB1310550A GB1310550A GB721992A GB 721992 A GB721992 A GB 721992A GB 1310550 A GB1310550 A GB 1310550A GB 1310550 A GB1310550 A GB 1310550A GB 721992 A GB721992 A GB 721992A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- spring
- relating
- scanning
- generating
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/36—Scanning of motion picture films, e.g. for telecine
- H04N3/38—Scanning of motion picture films, e.g. for telecine with continuously moving film
-
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/32—Details specially adapted for motion-picture projection
- G03B21/43—Driving mechanisms
- G03B21/44—Mechanisms transmitting motion to film-strip feed; Mechanical linking of shutter and intermittent feed
- G03B21/46—Mechanisms transmitting motion to film-strip feed; Mechanical linking of shutter and intermittent feed affording adjustment for framing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Details Of Television Scanning (AREA)
- Facsimile Scanning Arrangements (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Radiography Using Non-Light Waves (AREA)
- Studio Devices (AREA)
Abstract
721,992. Kiriematograph apparatus. ELECTRIC & ' MUSICAL INDUSTRIES, Ltd. May 25, 1951 [May 25, 1950], No. 13105/50. Addition to 690,482, [Group XL (b)]. Class 97 (1). In apparatus in accordance with the parent Specification relative rotation of the two sprockets is detected by a spring constructed so that its electrical resistance is a function of its tension, e.g. a helical spring having a preload varying along its length so that the turns, separate in sequence with increasing tension. As shown, the film 2 is driven by sprockets 1 and 7 carried respectively on a shaft 4 and a hollow shaft 8 also carrying a disc 9 with a projecting pin 10 to which is secured one end of the special spring 11. The shaft 8 runs on an inner shaft 14 which carries a collar 13 with a projecting arm to which the other end of the spring is secured. A slip-ring connection 18 is provided to the collar 13. The shafts 4, 14 are both driven from a shaft 6 by worm gearing. Alternatively they may be coupled by cranks and connecting-rods.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB118949A GB690482A (en) | 1950-05-25 | 1949-01-15 | Improvements relating to apparatus for scanning cinematograph film for the purpose of generating or recording television signals |
GB3232549A GB690487A (en) | 1950-05-25 | 1949-01-15 | Improvements relating to apparatus for controlling the time relationship between different occurrences, especially as applied to apparatus for scanning cinematograph film for the purpose of generating or recording television signals |
GB1310550A GB721992A (en) | 1950-05-25 | 1950-05-25 | Improvements in or relating to apparatus for scanning cinematograph film, for the purpose of generating or recording television signals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1310550A GB721992A (en) | 1950-05-25 | 1950-05-25 | Improvements in or relating to apparatus for scanning cinematograph film, for the purpose of generating or recording television signals |
Publications (1)
Publication Number | Publication Date |
---|---|
GB721992A true GB721992A (en) | 1955-01-19 |
Family
ID=10016920
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB118949A Expired GB690482A (en) | 1950-05-25 | 1949-01-15 | Improvements relating to apparatus for scanning cinematograph film for the purpose of generating or recording television signals |
GB3232549A Expired GB690487A (en) | 1950-05-25 | 1949-01-15 | Improvements relating to apparatus for controlling the time relationship between different occurrences, especially as applied to apparatus for scanning cinematograph film for the purpose of generating or recording television signals |
GB1310550A Expired GB721992A (en) | 1950-05-25 | 1950-05-25 | Improvements in or relating to apparatus for scanning cinematograph film, for the purpose of generating or recording television signals |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB118949A Expired GB690482A (en) | 1950-05-25 | 1949-01-15 | Improvements relating to apparatus for scanning cinematograph film for the purpose of generating or recording television signals |
GB3232549A Expired GB690487A (en) | 1950-05-25 | 1949-01-15 | Improvements relating to apparatus for controlling the time relationship between different occurrences, especially as applied to apparatus for scanning cinematograph film for the purpose of generating or recording television signals |
Country Status (1)
Country | Link |
---|---|
GB (3) | GB690482A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2922841A (en) * | 1953-08-17 | 1960-01-26 | Motorola Inc | Film scanning system |
US3002423A (en) * | 1956-04-26 | 1961-10-03 | Bauer Eugen Gmbh | Cinematographic projector |
US3014090A (en) * | 1959-03-03 | 1961-12-19 | Wayne D Bartley | Picture recording apparatus |
CN108279548B (en) * | 2017-01-06 | 2021-02-02 | 深圳光峰科技股份有限公司 | Projection system |
-
1949
- 1949-01-15 GB GB118949A patent/GB690482A/en not_active Expired
- 1949-01-15 GB GB3232549A patent/GB690487A/en not_active Expired
-
1950
- 1950-05-25 GB GB1310550A patent/GB721992A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB690482A (en) | 1953-04-22 |
GB690487A (en) | 1953-04-22 |
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