GB719401A - Improvements in or relating to devices for illuminating transparent pictures - Google Patents
Improvements in or relating to devices for illuminating transparent picturesInfo
- Publication number
- GB719401A GB719401A GB50352A GB50352A GB719401A GB 719401 A GB719401 A GB 719401A GB 50352 A GB50352 A GB 50352A GB 50352 A GB50352 A GB 50352A GB 719401 A GB719401 A GB 719401A
- Authority
- GB
- United Kingdom
- Prior art keywords
- holes
- compartment
- partition
- air
- compartments
- 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
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
- G09F13/08—Signs, boards or panels, illuminated from behind the insignia using both translucent and non-translucent layers
- G09F13/10—Signs, boards or panels, illuminated from behind the insignia using both translucent and non-translucent layers using transparencies
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/02—Viewing or reading apparatus
- G02B27/022—Viewing apparatus
- G02B27/024—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies
Abstract
719,401. Signs. DALISON, A. W. M. March 13, 1953 [Jan. 7, 1952], No. 503/52. Class 3(2) [Also in Group XV] A device for illuminating signs comprises two compartments 6, 7 separated from each other by a heat resisting transparent partition 10 and communicating with each other only under the partition as at 14, or through holes in the bottom of the partition, air holes 20, 21 being provided only at or near the top of the compartments, a source of light 16 being placed in the compartment 6 and the sign being mounted in a frame 3 at the front of the compartment 7. The compartments are provided in a box-like structure 1 to which the frame 3 is attached by studs 4 which fit in holes in the box. The partition 10 may be held in a holder 11 by clip 12 and the air holes 20, 21 may be provided with light traps 22, 23. The sign is mounted in the frame 3 between a sheet of plain glass and a sheet of opal glass or between suitable plastic sheets. As the air in the compartment 6 is heated by the light 16 the hot air escapes through the holes 20 and cool air is drawn into the compartment through the opening 14 after being drawn into the compartment 7 through the holes 21 and over the back of the picture so as to have a cooling effect thereon.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB50352A GB719401A (en) | 1952-01-07 | 1952-01-07 | Improvements in or relating to devices for illuminating transparent pictures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB50352A GB719401A (en) | 1952-01-07 | 1952-01-07 | Improvements in or relating to devices for illuminating transparent pictures |
Publications (1)
Publication Number | Publication Date |
---|---|
GB719401A true GB719401A (en) | 1954-12-01 |
Family
ID=9705492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB50352A Expired GB719401A (en) | 1952-01-07 | 1952-01-07 | Improvements in or relating to devices for illuminating transparent pictures |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB719401A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2199676A1 (en) * | 2002-06-10 | 2004-02-16 | Bayon Oscar Basterrechea | Luminous system for decorative, informative and publicity applications. (Machine-translation by Google Translate, not legally binding) |
-
1952
- 1952-01-07 GB GB50352A patent/GB719401A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2199676A1 (en) * | 2002-06-10 | 2004-02-16 | Bayon Oscar Basterrechea | Luminous system for decorative, informative and publicity applications. (Machine-translation by Google Translate, not legally binding) |
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