GB421618A - Improvements in display signs composed of electron discharge tubes - Google Patents
Improvements in display signs composed of electron discharge tubesInfo
- Publication number
- GB421618A GB421618A GB1999833A GB1999833A GB421618A GB 421618 A GB421618 A GB 421618A GB 1999833 A GB1999833 A GB 1999833A GB 1999833 A GB1999833 A GB 1999833A GB 421618 A GB421618 A GB 421618A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lamps
- discharge tubes
- electron discharge
- display signs
- signs composed
- 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
- 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)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
421,618. Changing signs. FROM, V. C., 122, Southampton Row, London. July 14, 1933, No. 19998. [Class 3 (i)] In sign characters &c. comprising a plurality of elongated electric discharge lamps 1, 2, 3, 4, concentrically arranged, the lamps having similar outlines, but being of different sizes so that an effect of contraction and expansion is obtained by illuminating the lamps in succession, the outermost and innermost lamps 1, 4, are of the same colour, and the intermediate lamp or lamps, or some thereof, are of a different colour or colours. The lamps are connected in pairs or otherwise, to a transformer through an interrupter switch 5, which may be of the rotary type with adjustable speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1999833A GB421618A (en) | 1933-07-14 | 1933-07-14 | Improvements in display signs composed of electron discharge tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1999833A GB421618A (en) | 1933-07-14 | 1933-07-14 | Improvements in display signs composed of electron discharge tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB421618A true GB421618A (en) | 1934-12-27 |
Family
ID=10138629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1999833A Expired GB421618A (en) | 1933-07-14 | 1933-07-14 | Improvements in display signs composed of electron discharge tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB421618A (en) |
-
1933
- 1933-07-14 GB GB1999833A patent/GB421618A/en not_active Expired
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