GB674338A - Improvements in light-spotting devices for display purposes - Google Patents
Improvements in light-spotting devices for display purposesInfo
- Publication number
- GB674338A GB674338A GB2693349A GB2693349A GB674338A GB 674338 A GB674338 A GB 674338A GB 2693349 A GB2693349 A GB 2693349A GB 2693349 A GB2693349 A GB 2693349A GB 674338 A GB674338 A GB 674338A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- illuminating
- davis
- oct
- counter
- 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)
- Illuminated Signs And Luminous Advertising (AREA)
- Displays For Variable Information Using Movable Means (AREA)
Abstract
674,338. Changing signs. DAVIS ADVERTISING SERVICE, Ltd., and DAVIS, B. Oct. 2, 1950 [Oct. 20, 1949], No. 26933/49. Class 3(i) [Also in Group XV] A display device comprises an information carrying sheet supported by a front panel in an outer framework which sheet is backed by a thick sheet of material 12 having apertures 14 corresponding to selected areas of the information carrying sheet, each aperture 14 having a counter-bore at the side remote from the front sheet in each of which illuminating means 11 extends, the illuminating means being secured in a backing sheet 10 of electrically' conducting material disposed adjacent the counter-bores, means being provided for selectively operating the illuminating. means. The lamps may be controlled in groups and illuminated advertising panels may surround the information sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2693349A GB674338A (en) | 1949-10-20 | 1949-10-20 | Improvements in light-spotting devices for display purposes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2693349A GB674338A (en) | 1949-10-20 | 1949-10-20 | Improvements in light-spotting devices for display purposes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB674338A true GB674338A (en) | 1952-06-25 |
Family
ID=10251492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2693349A Expired GB674338A (en) | 1949-10-20 | 1949-10-20 | Improvements in light-spotting devices for display purposes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB674338A (en) |
-
1949
- 1949-10-20 GB GB2693349A patent/GB674338A/en not_active Expired
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