GB483484A - Improvements in and relating to lamp shades - Google Patents
Improvements in and relating to lamp shadesInfo
- Publication number
- GB483484A GB483484A GB28420/36A GB2842036A GB483484A GB 483484 A GB483484 A GB 483484A GB 28420/36 A GB28420/36 A GB 28420/36A GB 2842036 A GB2842036 A GB 2842036A GB 483484 A GB483484 A GB 483484A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- shade
- clear glass
- vertical surfaces
- faced
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
Abstract
483,484. Lampshades. WEINSTEIN, L. Oct. 19, 1936, No. 28420. Convention date, Sept. 23. Addition to 385,561. [Class 75 (ii)] In a lampshade having a stepped lower portion, as described in the parent Specification, the vertical surfaces 4 of the steps are made of diffusing glass and the horizontal surfaces 3 of clear glass with re-entrant folds or channels 6 where they join the vertical surfaces so that the latter are extended and adjacent portions thereof leave no gaps for the escape of any direct rays from the light source. The upper portion 1 and the vertical surfaces 4 may be made of clear glass faced with clouded glass, whilst the bottom 5 may consist of frosted clear glass. The bottom of the shade may be provided with a hole which is closed by an interchangeable dishshaped member. The shade may be formed from a single piece of glass or from independent upper and lower portions held together by means of a ring. The complete shade, or the lower portion only thereof, may be frosted or faced with clouded glass on the inside or outside surface, and then, where necessary, the superficial layers may be partially or completely removed by grinding or etching. The clear glass thus exposed may be subjected to renewed frosting in order to obtain various degrees of transparency.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT483484X | 1936-09-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB483484A true GB483484A (en) | 1938-04-19 |
Family
ID=3674985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28420/36A Expired GB483484A (en) | 1936-09-23 | 1936-10-19 | Improvements in and relating to lamp shades |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB483484A (en) |
-
1936
- 1936-10-19 GB GB28420/36A patent/GB483484A/en not_active Expired
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