GB374141A - Improvements in or relating to self-luminous signs - Google Patents
Improvements in or relating to self-luminous signsInfo
- Publication number
- GB374141A GB374141A GB694331A GB694331A GB374141A GB 374141 A GB374141 A GB 374141A GB 694331 A GB694331 A GB 694331A GB 694331 A GB694331 A GB 694331A GB 374141 A GB374141 A GB 374141A
- Authority
- GB
- United Kingdom
- Prior art keywords
- varnish
- cement
- layer
- luminous
- letter
- 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
- G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Luminescent Compositions (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
<PICT:0374141/III/1> A sign, letter, or other body is coated first with a layer of non-metallic material such as varnish or cement in a liquid or semiliquid condition, and then with a luminous preparation, preferably radio-active, which is protected by a cellulose ester or like varnish. As shown in section, a cut-out aluminium letter 10 is first given a protective layer 12 which extends all over it, by dipping it into cellulose acetate, cellulose nitrate, or like varnish. A second front coating 13 of the varnish is then applied, either before or after the layer 12 has dried, to serve as a base for the luminous preparation and preserve it from contact with the metal. Finally the layer 14 is applied, which consists of a mixture of the varnish and the luminous preparation. Any or all of the layers 12, 13, 14 may incorporate a suitable white filler such as cement or zinc oxide to improve the daylight visibility. The letters may be provided with suitable pins for mounting. According to the Provisional Specification, a letter may be formed as a shallow tray filled with cement, the luminous composition being applied to the cement surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB694331A GB374141A (en) | 1931-03-05 | 1931-03-05 | Improvements in or relating to self-luminous signs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB694331A GB374141A (en) | 1931-03-05 | 1931-03-05 | Improvements in or relating to self-luminous signs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB374141A true GB374141A (en) | 1932-06-06 |
Family
ID=9823680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB694331A Expired GB374141A (en) | 1931-03-05 | 1931-03-05 | Improvements in or relating to self-luminous signs |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB374141A (en) |
-
1931
- 1931-03-05 GB GB694331A patent/GB374141A/en not_active Expired
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