GB708261A - Improvements relating to kinematograph projectors - Google Patents
Improvements relating to kinematograph projectorsInfo
- Publication number
- GB708261A GB708261A GB573151A GB573151A GB708261A GB 708261 A GB708261 A GB 708261A GB 573151 A GB573151 A GB 573151A GB 573151 A GB573151 A GB 573151A GB 708261 A GB708261 A GB 708261A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discs
- disc
- handle
- motion transmitting
- transmitting elements
- 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)
- Toys (AREA)
- Winding Of Webs (AREA)
Abstract
708,261. Kinematograph projectors. HEAL, L. C. March 10, 1952 [March 9, 1951], No. 5731/51. Class 97(1) A reversible film winding means comprises a rockable support, a main driving element and at least two rotatable motion transmitting elements mounted on the support, the motion transmitting elements being adapted to be driven from the driving element, means for rotating said element and a pair of spool driving elements alternatively engaged with the respective motion transmitting elements by rocking the rockable support. In the form shown the member 1 is pivoted on the spindle 9 of the winding handle 10 and carries discs 4, 5 on spindles 6, 7 in slotted holes 8. The discs 4, 5 engage frictionally a disc 3 secured to the shaft 9. Friction pads are provided between the disc 3 and the supporting member 1 so that as the handle is turned the member turns in the same direction to engage one of the discs 4, 5 with one of two discs 14, 15 which drive the film spools directly or through belts. The disc 3 may be belt driven from the handle. The projection system 25 incorporates an optical compensator coupled to a film driven sprocket. A masking frame 26 is provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB573151A GB708261A (en) | 1951-03-09 | 1951-03-09 | Improvements relating to kinematograph projectors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB573151A GB708261A (en) | 1951-03-09 | 1951-03-09 | Improvements relating to kinematograph projectors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB708261A true GB708261A (en) | 1954-05-05 |
Family
ID=9801583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB573151A Expired GB708261A (en) | 1951-03-09 | 1951-03-09 | Improvements relating to kinematograph projectors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB708261A (en) |
-
1951
- 1951-03-09 GB GB573151A patent/GB708261A/en not_active Expired
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