GB361304A - Improvements in and relating to film driving apparatus - Google Patents
Improvements in and relating to film driving apparatusInfo
- Publication number
- GB361304A GB361304A GB14842/30A GB1484230A GB361304A GB 361304 A GB361304 A GB 361304A GB 14842/30 A GB14842/30 A GB 14842/30A GB 1484230 A GB1484230 A GB 1484230A GB 361304 A GB361304 A GB 361304A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- drum
- sprocket
- sound
- reproducing apparatus
- 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
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/56—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function the record carrier having reserve loop, e.g. to minimise inertia during acceleration measuring or control in connection therewith
Landscapes
- Advancing Webs (AREA)
- Automatic Disk Changers (AREA)
Abstract
361,304. Sound recording or reproducing apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Bradford, A. J. ; Alplaus, New York, U.S.A.) May 14, 1930, No. 14842. Convention date, May 14, 1929. Void [Published under Sect. 91 of the Acts]. [Class 40 (ii).] A sound film is moved without vibration through the control point x, Fig. 3, by providing braking, means in the form of a friction sprocket 6 driven by the film 1 as it passes to a drum 8, such means producing a predetermined tension of the film to avoid slippage on the drum. The sprocket 6 with its adjustable spring- pressed friction disc 19 is shown in Fig. 2. In the sound-reproducing apparatus shown in Fig. 3, a loop y in the film is passed over a fixed skid 24 enclosing the photo-electric cell 12. The drum 8 is preferably provided with a flywheel 15 and the film is drawn from the drum by a driving sprocket 10.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US361304XA | 1929-05-14 | 1929-05-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB361304A true GB361304A (en) | 1931-11-16 |
Family
ID=21886802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14842/30A Expired GB361304A (en) | 1929-05-14 | 1930-05-14 | Improvements in and relating to film driving apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB361304A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE969673C (en) * | 1941-04-08 | 1958-07-03 | Klangfilm Gmbh | Magnetic recorder |
-
1930
- 1930-05-14 GB GB14842/30A patent/GB361304A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE969673C (en) * | 1941-04-08 | 1958-07-03 | Klangfilm Gmbh | Magnetic recorder |
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