GB590630A - Improvements in feed mechanism for sound film - Google Patents
Improvements in feed mechanism for sound filmInfo
- Publication number
- GB590630A GB590630A GB383245A GB383245A GB590630A GB 590630 A GB590630 A GB 590630A GB 383245 A GB383245 A GB 383245A GB 383245 A GB383245 A GB 383245A GB 590630 A GB590630 A GB 590630A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- wheel
- drum
- shaft
- fly
- 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
- G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
- G03B31/02—Associated working of cameras or projectors with sound-recording or sound-reproducing means in which sound track is on a moving-picture film
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photographic Developing Apparatuses (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
590,630. Feeding sound films. MYNARD, A. E. Feb. 15, 1945, No. 3832. [Class 97 (i)] [Also in Group XXXVIII] The speed of the film is provided with extra stabilization by means of a fly-wheel on a sleeve rotatably mounted on the stabilizing- drum shaft and resiliently connected to the mechanism so that its direction of rotation tends to neutralize the effect of friction acting on the drum shaft. Fig. 2 shows a sectional view of the mechanism in which a gear-wheel 3, connected to a power source, drives the sleeve 22 by means of a gear-wheel 4 rigidly fixed to it. The sleeve 22 is free to rotate about the drum shaft 18, which is fitted with a fly-wheel 21 and mounted in a bearing 20. A secondary sleeve 25, free to move on, but in frictional contact with the sleeve 22, is also fitted' with a fly-wheel 26 and is driven through. a spring filter 7 by the sleeve 22, and drives in turn the film sprocket shaft 8 via gear-wheels 5 and 6. The sound film passes over the drum 2 (with which is associated the sound gate 9, lamp 10, Fig. 1 (not shown), optical unit 11 and photocell 12), back over the filtered sprocket 1, and has a loose loop before passing over the holdback sprocket 13 coupled to the sleeve 22 via gear-wheels 15 and 16. The direction of rotation of the drum-shaft 18 is accordingly similar to that of the sleeve 22.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB590630A true GB590630A (en) | 1947-07-23 |
Family
ID=1627821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB383245A Expired GB590630A (en) | 1945-02-15 | Improvements in feed mechanism for sound film |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB590630A (en) |
-
1945
- 1945-02-15 GB GB383245A patent/GB590630A/en not_active Expired
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