GB309801A - Improvements relating to film projection machines - Google Patents
Improvements relating to film projection machinesInfo
- Publication number
- GB309801A GB309801A GB2188628A GB2188628A GB309801A GB 309801 A GB309801 A GB 309801A GB 2188628 A GB2188628 A GB 2188628A GB 2188628 A GB2188628 A GB 2188628A GB 309801 A GB309801 A GB 309801A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rollers
- sprocket
- projector
- belt
- driven
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/32—Details specially adapted for motion-picture projection
Abstract
309,801. Burger, P. L., and Auto Natural Color Films, Ltd. July 27, 1928. Kinematograph apparatus.-In a projector, a coiled endless film is carried on a group of rollers, some of which are driven, and the coils are kept in position laterally by conical or multitudinous disc rollers. As shown, the coiled film is carried by smooth rollers 3, 4 mounted on horizontal axes carried by a vertical plate 5, the rollers 3 being connected by a belt 27 and being driven by a belt 26 from a sprocket 16. The shaft of the sprocket 16 is connected by chain gearing 21 to the driving shaft of the projector which is itself driven by a belt 19 and pulley 18 from a motor 2. The shaft of the .sprocket 16 also drives a sprocket 11 through bevel gearing, and a sprocket 8 through a chain 25, all the rollers and sprockets being driven at the same peripheral speed. The film 7 passes from the projector over the sprocket 16 &c. to the outermost coil, and from the innermost coil round the sprockets 8, 11, and flanged rollers 12 - - - 15, to the projector. Rollers of multitudinous disc forms, or conical rollers 28, engage the edges of the coils on each side to keep them in place. A spring-biassed arm 32 having a roller 33 engaging the driving belt 19, carries a contact 30 in the projector light circuit, so that breakage of the belt causes the projector light tobe extinguished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2188628A GB309801A (en) | 1928-07-27 | 1928-07-27 | Improvements relating to film projection machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2188628A GB309801A (en) | 1928-07-27 | 1928-07-27 | Improvements relating to film projection machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB309801A true GB309801A (en) | 1929-04-18 |
Family
ID=10170461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2188628A Expired GB309801A (en) | 1928-07-27 | 1928-07-27 | Improvements relating to film projection machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB309801A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3295782A (en) * | 1963-10-29 | 1967-01-03 | Kenneth W Stark | Endless tape cartridge |
-
1928
- 1928-07-27 GB GB2188628A patent/GB309801A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3295782A (en) * | 1963-10-29 | 1967-01-03 | Kenneth W Stark | Endless tape cartridge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB309801A (en) | Improvements relating to film projection machines | |
| GB520494A (en) | Improvements in or relating to film developing apparatus | |
| US1282006A (en) | Panoramagraph. | |
| US2270244A (en) | Apparatus for producing ground or polished glass strip | |
| US1660472A (en) | Recording means | |
| GB336820A (en) | Improvements in conveying apparatus | |
| GB282196A (en) | A stereoscopic kinematographic camera | |
| GB273216A (en) | Improvements in or relating to film winding mechanism for kinematographic apparatus | |
| GB196155A (en) | An improved display apparatus | |
| GB191225A (en) | Advertising and displaying apparatus, moving and changing | |
| GB296728A (en) | Improvements in cinematographic apparatus | |
| GB318535A (en) | Improvements in apparatus and process for moving pictures | |
| GB222613A (en) | Improvements in or connected with moving picture appliances or kinematographs | |
| GB447916A (en) | An improved apparatus for use in producing kinematographic effects with opaque picture strips | |
| GB438849A (en) | Improvements in method of and device for the rewinding of photographic films | |
| GB482503A (en) | Improvements in or relating to film projecting and the like cinematograph apparatus | |
| GB282883A (en) | Improvements in optical projection apparatus for advertising and like purposes | |
| GB331180A (en) | Improvements in and relating to film-winding means for kinematograph projectors | |
| GB328785A (en) | Improvements in kinematograph projecting apparatus | |
| GB503611A (en) | Improvements in or relating to optical projecting apparatus | |
| GB207962A (en) | Improvements in driving mechanism of film winding apparatus for kinematograph films | |
| GB263679A (en) | Film projection apparatus | |
| GB290564A (en) | Improvements in or connected with talking motion picture apparatus | |
| GB327402A (en) | An improved kinematograph projector | |
| GB399078A (en) | An improved picture-projecting apparatus |