GB476094A - Apparatus for obtaining the appearance of handwriting or the like by means of electrical discharge luminous tubes and like devices - Google Patents
Apparatus for obtaining the appearance of handwriting or the like by means of electrical discharge luminous tubes and like devicesInfo
- Publication number
- GB476094A GB476094A GB9043/37A GB904337A GB476094A GB 476094 A GB476094 A GB 476094A GB 9043/37 A GB9043/37 A GB 9043/37A GB 904337 A GB904337 A GB 904337A GB 476094 A GB476094 A GB 476094A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- conducting
- transformer
- segment
- contact
- 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
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
- H05B41/44—Controlling for providing special optical effects, e.g. progressive motion of light
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/004—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes to give the appearance of moving signs
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
476,094. Supply systems for discharge lamps. SOC. COOPERATIVE NEOLUMEN. March 30, 1937, No. 9043. Convention date, March 31, 1936. [Class 38 (iv)] [Also in Group XVIII] Switching control.-In apparatus for illu.. minating progressively an electric discharge tube sign in which the tube is divided by intermediate electrodes into a plurality of sections illuminated successively by switches to give the appearance of luminous writing or drawing, the voltage on the low and on the high tension sides of a single transformer are regulated simultaneously by means of a variable resistance on the low tension winding in such a, manner that an increasing number of sections of a tube are connected one by one in series with a single circuit including the high tension winding, the whole current passing through each section of the tube, so that the correct striking voltage is applied successively to each portion of the tube. The Figure shows a tube H<1> .... L having intermediate electrodes 1-16 which are connected each respectively to contact studs 1-16 on the high voltage side of a rotary switch. The rotary arm Sch carries a contact C connecting a conducting rim in the secondary circuit of the transformer with, in succession, an insulating segment A, the studs 1-16 and a conducting segment D. The arm Sch also carries a contact K connecting a conducting ring in the primary circuit of the transformer with, in succession, an insulating segment B, conducting segments a joined together by resistances R1, R2, R3 and a conducting segment G. It is stated that one transformer will function for a length of tube up to 12 metres. For greater lengths additional transformers are provided, a single rotary switch being adapted for working them in parallel.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE476094X | 1936-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB476094A true GB476094A (en) | 1937-12-01 |
Family
ID=3870245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9043/37A Expired GB476094A (en) | 1936-03-31 | 1937-03-30 | Apparatus for obtaining the appearance of handwriting or the like by means of electrical discharge luminous tubes and like devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB476094A (en) |
-
1937
- 1937-03-30 GB GB9043/37A patent/GB476094A/en not_active Expired
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