GB492358A - Improvements in use of glow discharge lamps - Google Patents
Improvements in use of glow discharge lampsInfo
- Publication number
- GB492358A GB492358A GB34317/36A GB3431736A GB492358A GB 492358 A GB492358 A GB 492358A GB 34317/36 A GB34317/36 A GB 34317/36A GB 3431736 A GB3431736 A GB 3431736A GB 492358 A GB492358 A GB 492358A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- glow discharge
- discharge lamps
- dec
- groups
- 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
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/313—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being gas discharge devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
492,358. Monogrammic signs. SANDBERG, J. T., and WITTANDER, S. Dec. 14, 1936, No. 34317. Void. Convention date, Dec. 14, 1935. Drawings to Specification. [Class 118 (ii)] [Also in Groups XL and XXXV] An electric glow-discharge tube for use as a monogrammic sign, indicator or the like has the electrodes shaped to form a sign. Electrodes may form points on a map, the various parts of which form further electrodes. The Specification also describes arrangements in which groups of electrodes are alternately energized by means of a switch.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE492358X | 1935-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB492358A true GB492358A (en) | 1938-09-19 |
Family
ID=20310636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34317/36A Expired GB492358A (en) | 1935-12-14 | 1936-12-14 | Improvements in use of glow discharge lamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB492358A (en) |
-
1936
- 1936-12-14 GB GB34317/36A patent/GB492358A/en not_active Expired
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