GB202009A - Improvements in shades for application to or use with electric lamps requiring shades - Google Patents
Improvements in shades for application to or use with electric lamps requiring shadesInfo
- Publication number
- GB202009A GB202009A GB1278822A GB1278822A GB202009A GB 202009 A GB202009 A GB 202009A GB 1278822 A GB1278822 A GB 1278822A GB 1278822 A GB1278822 A GB 1278822A GB 202009 A GB202009 A GB 202009A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rings
- ring
- shades
- wires
- extremity
- 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
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
- F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
202,009. Haworth, A. N. May 6, 1922. Shades.-An electric-lamp shade consists of a succession of uniformly shaped and spaced opaque reflecting rings a, b, Fig. 1, or parts of rings a, b, Fig. 5, of truncated conical or pyramidal form connected to one another and spaced apart by independent connecting-devices, such as wires c, so that light is projected forwardly and through the spaces between the rings. The first ring a of the series has its inner end lying about the bayonet joint of the lamp. The connecting-means may consist of a bracket f, Fig. 7, locked on the lamp holder by a ring nut g, and provided with an extension f<1> soldered to the inner end of one of the rings b and two or three extensions f<2> soldered to the outer ends cf all the rings. Other connecting- means described include slotted bars, plates cut and stamped with concave and convex bearings strung on wires between the rings, or tubes or beads strung on wires between the rings. A further modification consists of a clip m, Fig. 14, of which three or more are used between adjacent rings, one extremity m<1> being bent over the upper edge of one ring and the other extremity m bent over the lower edge of the ring below. The ring elements may be hinged or pivotally connected to the supports, or the supports pivoted to allow re. lative adjustment of the rings. Reference has been directed by the Comptroller to Specification 524/98.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1278822A GB202009A (en) | 1922-05-06 | 1922-05-06 | Improvements in shades for application to or use with electric lamps requiring shades |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1278822A GB202009A (en) | 1922-05-06 | 1922-05-06 | Improvements in shades for application to or use with electric lamps requiring shades |
Publications (1)
Publication Number | Publication Date |
---|---|
GB202009A true GB202009A (en) | 1923-08-07 |
Family
ID=10011122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1278822A Expired GB202009A (en) | 1922-05-06 | 1922-05-06 | Improvements in shades for application to or use with electric lamps requiring shades |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB202009A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2899543A (en) * | 1959-08-11 | X t table lamp and shade | ||
EP0014839A1 (en) * | 1979-01-18 | 1980-09-03 | Alois Loher | Device for sterilizing the air using a vertically disposed rod-like U.V. radiation device |
EP1074787A2 (en) * | 1999-08-06 | 2001-02-07 | iGUZZINI ILLUMINAZIONE S.R.L. | Lighting apparatus with controlled light emission |
-
1922
- 1922-05-06 GB GB1278822A patent/GB202009A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2899543A (en) * | 1959-08-11 | X t table lamp and shade | ||
EP0014839A1 (en) * | 1979-01-18 | 1980-09-03 | Alois Loher | Device for sterilizing the air using a vertically disposed rod-like U.V. radiation device |
EP1074787A2 (en) * | 1999-08-06 | 2001-02-07 | iGUZZINI ILLUMINAZIONE S.R.L. | Lighting apparatus with controlled light emission |
EP1074787A3 (en) * | 1999-08-06 | 2003-10-29 | iGUZZINI ILLUMINAZIONE S.R.L. | Lighting apparatus with controlled light emission |
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