BE425453A - Dispositif pour enregistrer ou reproduire des films muets ou sonores - Google Patents
Dispositif pour enregistrer ou reproduire des films muets ou sonoresInfo
- Publication number
- BE425453A BE425453A BE425453A BE425453A BE425453A BE 425453 A BE425453 A BE 425453A BE 425453 A BE425453 A BE 425453A BE 425453 A BE425453 A BE 425453A BE 425453 A BE425453 A BE 425453A
- Authority
- BE
- Belgium
- Prior art keywords
- silent
- reproducing
- recording
- sound films
- films
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
- H05B41/34—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp to provide a sequence of flashes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
- H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
- H05B41/23—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
- H05B41/231—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for high-pressure lamps
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
- H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
- H05B41/23—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
- H05B41/232—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE425453X | 1936-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE425453A true BE425453A (fr) | 1938-01-31 |
Family
ID=41131829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE425453A BE425453A (fr) | 1936-12-29 | 1937-12-27 | Dispositif pour enregistrer ou reproduire des films muets ou sonores |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2134439A (fr) |
| BE (1) | BE425453A (fr) |
| CH (1) | CH201641A (fr) |
| DK (1) | DK56237C (fr) |
| FR (1) | FR831377A (fr) |
| GB (1) | GB492943A (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2575001A (en) * | 1948-02-07 | 1951-11-13 | Hanovia Chemical & Mfg Co | Operating system for discharge devices and vapor arc lamps |
| US2893289A (en) * | 1953-03-09 | 1959-07-07 | Harold E Edgerton | Microscope flash-photography system and apparatus |
| US2856565A (en) * | 1956-12-24 | 1958-10-14 | Elox Corp Michigan | Electrical discharge machining |
| US2943554A (en) * | 1957-04-22 | 1960-07-05 | Kastner Erich | Film printing machine |
| US3114893A (en) * | 1958-03-19 | 1963-12-17 | Ciaude Paz Et Visseaux | Device for marking with light a high voltage overhead line |
| SE411966B (sv) * | 1976-07-12 | 1980-02-11 | Electrolux Ab | Koppling for en glimlampa avsedd att visa fast eller blinkande sken |
| SE516389C2 (en) * | 1997-07-02 | 2002-01-08 | Ignitor=free circuit for tube lighting unit e.g. sodium or fluorescent - has discharge tube in parallel with resistor and diode, and in series with inductor and capacitor paralleled by resistor. |
-
1937
- 1937-12-23 DK DK56237D patent/DK56237C/da active
- 1937-12-24 GB GB35712/37A patent/GB492943A/en not_active Expired
- 1937-12-27 BE BE425453A patent/BE425453A/fr unknown
- 1937-12-27 CH CH201641D patent/CH201641A/de unknown
- 1937-12-27 US US181929A patent/US2134439A/en not_active Expired - Lifetime
- 1937-12-28 FR FR831377D patent/FR831377A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DK56237C (da) | 1939-05-30 |
| FR831377A (fr) | 1938-09-01 |
| CH201641A (de) | 1938-12-15 |
| US2134439A (en) | 1938-10-25 |
| GB492943A (en) | 1938-09-29 |
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