GB906156A - Improvements in or relating to coupling devices for obtaining synchronous operation of a film projector and a device for reproducing magnetic records on a tape - Google Patents
Improvements in or relating to coupling devices for obtaining synchronous operation of a film projector and a device for reproducing magnetic records on a tapeInfo
- Publication number
- GB906156A GB906156A GB138959A GB138959A GB906156A GB 906156 A GB906156 A GB 906156A GB 138959 A GB138959 A GB 138959A GB 138959 A GB138959 A GB 138959A GB 906156 A GB906156 A GB 906156A
- Authority
- GB
- United Kingdom
- Prior art keywords
- projector
- tape
- motor
- relay
- circuit
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/18—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual dc motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
-
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D17/00—Control of torque; Control of mechanical power
- G05D17/02—Control of torque; Control of mechanical power characterised by the use of electric means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/36—Scanning of motion picture films, e.g. for telecine
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
906,156. Control of motors. PHILIPS ELECTRICAL INDUSTRIES Ltd. Jan. 14, 1959 [Jan. 15, 1958], No. 1389/59. Class 38 (3). [Also in Group XXXVIII] To enable a kine projector, coupled for associated working with a tape-recorder, to reach operating speed and synchronism rapidly, a resistor, normally connected in series with the projector motor, is initially short-circuited to provide a higher than normal starting torque. The tape is driven by a capstan 11 and pinchroller 14 forming part of the projector drive and a rocker-mounted roller 7, in known manner, gauges the tape-loop 16 and varies a rheostat 4 connected in series with the projector motor. In the circuit of Fig. 2, the voltage across the motor 13 is rectified by the network 18 to operate the relay 19 via the slugging arrangement 20, 21, 22. The delay in operation of the relay depends inversely on the voltage available across the motor 13 so that after an interval appropriate to the mains voltage available, the relay 19 opens the contact 19 to restore to the circuit the resistors 15, 17. Resistor 15 will normally be present in the projector, 17 can be finely adjusted. The time-constant of the circuit 19, 21, 22 is so arranged as to prevent relaxation oscillations in the control gear.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP19993A DE1055948B (en) | 1958-01-15 | 1958-01-15 | Electromechanical coupling device for a cinema projector to be operated in synchronism with a magnetic sound device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB906156A true GB906156A (en) | 1962-09-19 |
Family
ID=7367671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB138959A Expired GB906156A (en) | 1958-01-15 | 1959-01-14 | Improvements in or relating to coupling devices for obtaining synchronous operation of a film projector and a device for reproducing magnetic records on a tape |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1055948B (en) |
| GB (1) | GB906156A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1194254B (en) * | 1961-12-09 | 1965-06-03 | Ernst Plank | Arrangement for the synchronous coupling of a tape recorder with a projector |
| DE19744729A1 (en) * | 1997-10-10 | 1999-04-15 | Fahrzeugklimaregelung Gmbh | Electric motor run-up device |
-
1958
- 1958-01-15 DE DEP19993A patent/DE1055948B/en active Pending
-
1959
- 1959-01-14 GB GB138959A patent/GB906156A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1055948B (en) | 1959-04-23 |
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