GB391242A - Improvements to neon signs and the like - Google Patents
Improvements to neon signs and the likeInfo
- Publication number
- GB391242A GB391242A GB3250931A GB3250931A GB391242A GB 391242 A GB391242 A GB 391242A GB 3250931 A GB3250931 A GB 3250931A GB 3250931 A GB3250931 A GB 3250931A GB 391242 A GB391242 A GB 391242A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lamps
- condenser
- lamp
- employing
- employed
- 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
- 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
- H05B41/02—Details
- H05B41/04—Starting switches
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
391,242. Supply systems for vacuum &c. discharge apparatus. FEILD, B. D., 24, Hickling Road; Ilford, Essex. Nov. 24, 1931, Nos. 32509/31 and 36/32. [Class 38 (iv).] The illumination of an electric discharge lamp L is controlled or varied by introducing in series therewith a condenser C and a choke coil K, thus enabling, if desired, several lamps to be connected in parallel with the employment of one transformer T only. The effect of the condenser or choke coil individually is to throw the voltage and amperage curves out of phase, and thus by adjusting them or by employing two or more condensers of different capacities and selectively switching in, the lamp may be brightened or dimmed. By employing both a condenser and choke the out-of-phase condition is rectified, and true power watts pass through the lamps, maintaining steady illumination. When lamps in parallel, or a single elongated lamp having several terminals along its length, are employed, the lamps or sections may be short-circuited across their terminals without affecting the luminosity of the remaining lamps. A magnetic switch may be employed for this purpose.' The lamps may form a uniform field acting as an illuminated background to an interchangeable stencilled or other character. Specifications 331,557 and 357,492 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3250931A GB391242A (en) | 1931-11-24 | 1931-11-24 | Improvements to neon signs and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3250931A GB391242A (en) | 1931-11-24 | 1931-11-24 | Improvements to neon signs and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB391242A true GB391242A (en) | 1933-04-27 |
Family
ID=10339683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3250931A Expired GB391242A (en) | 1931-11-24 | 1931-11-24 | Improvements to neon signs and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB391242A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2423031A (en) * | 1942-06-04 | 1947-06-24 | Callite Tungsten Corp | Fluorescent gaseous discharge lamp system and thermal starting switch |
-
1931
- 1931-11-24 GB GB3250931A patent/GB391242A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2423031A (en) * | 1942-06-04 | 1947-06-24 | Callite Tungsten Corp | Fluorescent gaseous discharge lamp system and thermal starting switch |
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