GB448692A - Improvements in neon signs and the like - Google Patents
Improvements in neon signs and the likeInfo
- Publication number
- GB448692A GB448692A GB2941534A GB2941534A GB448692A GB 448692 A GB448692 A GB 448692A GB 2941534 A GB2941534 A GB 2941534A GB 2941534 A GB2941534 A GB 2941534A GB 448692 A GB448692 A GB 448692A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tubes
- signs
- openings
- disc
- frequencies
- 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
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/26—Signs formed by electric discharge tubes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
Abstract
448,692. Changing signs. MINNS, R. H., 21, Chapel Avenue, Addlestone, Surrey. Nov. 4, 1935, No. 29415/34. [Class 3 (i)] In stroboscopic signs and the like in which a disc perforated with clesigns &c. rotates in front of circular concentric electric discharge tubes, the perforations are in the form of two or more rings of openings, all of the same size and equally spaced apart. The number of openings therefore differs in each ring, and with certain lamp frequencies and speeds of the disc d moving effects in different directions are produced. The tubes f, g may be independent and be energized by currents of different frequencies, and current frequency differences may be obtained by the use of half-wave rectifiers. The tubes may be of different colours.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2941534A GB448692A (en) | 1935-11-04 | 1935-11-04 | Improvements in neon signs and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2941534A GB448692A (en) | 1935-11-04 | 1935-11-04 | Improvements in neon signs and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
GB448692A true GB448692A (en) | 1936-06-15 |
Family
ID=10291209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2941534A Expired GB448692A (en) | 1935-11-04 | 1935-11-04 | Improvements in neon signs and the like |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB448692A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5041947A (en) * | 1987-07-30 | 1991-08-20 | Yuen Kwok Tung | Display device |
-
1935
- 1935-11-04 GB GB2941534A patent/GB448692A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5041947A (en) * | 1987-07-30 | 1991-08-20 | Yuen Kwok Tung | Display device |
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