GB524636A - Improvements in electric lamps and fittings - Google Patents
Improvements in electric lamps and fittingsInfo
- Publication number
- GB524636A GB524636A GB3515/39A GB351539A GB524636A GB 524636 A GB524636 A GB 524636A GB 3515/39 A GB3515/39 A GB 3515/39A GB 351539 A GB351539 A GB 351539A GB 524636 A GB524636 A GB 524636A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shade
- fittings
- end fittings
- tubes
- junction boxes
- 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
- F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
-
- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
-
- 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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
-
- 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
- F21V31/00—Gas-tight or water-tight arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
524,636. Electric lamp fittings. CURTIS, A. H. Feb. 2, 1939, No. 3515. [Classes 75 (ii) and 75 (iv)] An electric lamp fitting comprises a tubular transparent or translucent shade of elliptical cross-section clamped between gasket provided end fittings rendering the lamp water and vapour proof. The gaskets may be plain or channelled and held in annular grooves 11 of the end fittings 7. One side portion of the shade may be provided or backed with a reflecting surface or with a reflecting guard mounted on bracing rods 8 passing through lugs 10 on the end fittings 7. To vary the direction of the light emitted the shade may be rotatably mounted about pivots 16 on end cap junction boxes 13 housing the lampbulb sockets and connected by tubes 18 and further junction boxes (not shown) to a horizontal tubular support housing the electric leads from the mains. Cooling air for the shade may be supplied through the said tubes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3515/39A GB524636A (en) | 1939-02-02 | 1939-02-02 | Improvements in electric lamps and fittings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3515/39A GB524636A (en) | 1939-02-02 | 1939-02-02 | Improvements in electric lamps and fittings |
Publications (1)
Publication Number | Publication Date |
---|---|
GB524636A true GB524636A (en) | 1940-08-12 |
Family
ID=9759778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3515/39A Expired GB524636A (en) | 1939-02-02 | 1939-02-02 | Improvements in electric lamps and fittings |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB524636A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2644027A (en) * | 1949-09-06 | 1953-06-30 | Columbia Electric And Mfg Comp | Outdoor fixture for tubular lights |
US2964616A (en) * | 1958-05-01 | 1960-12-13 | Jack B Seidman | Lighting fixture |
US2980792A (en) * | 1959-09-28 | 1961-04-18 | Gen Electric | Lighting fixture |
-
1939
- 1939-02-02 GB GB3515/39A patent/GB524636A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2644027A (en) * | 1949-09-06 | 1953-06-30 | Columbia Electric And Mfg Comp | Outdoor fixture for tubular lights |
US2964616A (en) * | 1958-05-01 | 1960-12-13 | Jack B Seidman | Lighting fixture |
US2980792A (en) * | 1959-09-28 | 1961-04-18 | Gen Electric | Lighting fixture |
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