GB913014A - Synchronizing device for a film projector and a sound tape apparatus - Google Patents
Synchronizing device for a film projector and a sound tape apparatusInfo
- Publication number
- GB913014A GB913014A GB2722559A GB2722559A GB913014A GB 913014 A GB913014 A GB 913014A GB 2722559 A GB2722559 A GB 2722559A GB 2722559 A GB2722559 A GB 2722559A GB 913014 A GB913014 A GB 913014A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sound tape
- wiper
- motor
- lever
- resistor
- 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
- G03B31/04—Associated working of cameras or projectors with sound-recording or sound-reproducing means in which sound track is not on, but is synchronised with, a moving-picture film
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
913,014. Automatic speed-control systems. VOCKENHUBER, K., and HAUSER, C. Aug. 10, 1959 [Aug. 12, 1958], No. 27225/59. Class 38 (4). When a sound tape 11 is fed in the direction of an arrow 24, a loop 25 increases in size and a lever 9 moves downwardly under the influence of a spring 22 so that a wiper 6 engages a resistor 5 for energizing a film projector motor 1 through its field winding 3. The motor drives a roller 16 in the anti-clockwise direction, thereby decreasing the length of the loop until a balanced position is reached. If the sound tape is fed in the direction of arrow 26, the length of the loop is reduced whereby resistor 4 is connected in circuit with the motor 1 which operates in the reverse direction. Stoppage of the sound tape apparatus causes the wiper 6 to move to its neutral position to disconnect the motor 1, the wiper being carried by inertia into engagement with the resistor 5 for producing a counter torque. The sound tape is pressed on to the roller 16 by roll 17 mounted on lever 18 coacting with pins 45, 46, in slidable plate 19. A pin 20 in the lever 9 moves into a guide in the slidable plate for bringing the lever to its central position. In another arrangement the wiper 6 is actuated by differential gearing having elements respectively connected to the film drive and to the sound tape, Fig. 2 (not shown). In other arrangements the projector motor has a single-field winding only, Figs. 4, 5 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT563758A AT209191B (en) | 1958-08-12 | 1958-08-12 | Synchronizing arrangement for a film projector and a tape recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB913014A true GB913014A (en) | 1962-12-12 |
Family
ID=3577972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2722559A Expired GB913014A (en) | 1958-08-12 | 1959-08-10 | Synchronizing device for a film projector and a sound tape apparatus |
Country Status (3)
| Country | Link |
|---|---|
| AT (1) | AT209191B (en) |
| BE (1) | BE581599A (en) |
| GB (1) | GB913014A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1129049B (en) * | 1960-08-04 | 1962-05-03 | Telefunken Patent | Device for synchronous operation of a picture film device with a separately installed tape recorder |
| DE1223252B (en) * | 1962-03-08 | 1966-08-18 | Telefunken Patent | Magnetic recorder for synchronous drive with a separately installed projector |
-
1958
- 1958-08-12 AT AT563758A patent/AT209191B/en active
-
1959
- 1959-08-10 GB GB2722559A patent/GB913014A/en not_active Expired
- 1959-08-12 BE BE581599A patent/BE581599A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AT209191B (en) | 1960-05-25 |
| BE581599A (en) | 1959-12-01 |
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