GB311065A - Improvements in tubular electric lamps - Google Patents
Improvements in tubular electric lampsInfo
- Publication number
- GB311065A GB311065A GB33959/27A GB3395927A GB311065A GB 311065 A GB311065 A GB 311065A GB 33959/27 A GB33959/27 A GB 33959/27A GB 3395927 A GB3395927 A GB 3395927A GB 311065 A GB311065 A GB 311065A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- frame
- end caps
- tubular electric
- caps
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S4/00—Lighting devices or systems using a string or strip of light sources
- F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
-
- 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
- F21V15/00—Protecting lighting devices from damage
- F21V15/01—Housings, e.g. material or assembling of housing parts
-
- 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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
-
- 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)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
311,065. Pye, E., and Heale, S. J. Oct. 15, 1928. Lamps forming a line of light. -One or more tubular electric lamp bulbs 7 arecontained within an elongated translucent glass tube 1 having metallic end caps 2 through which extend the threaded ends 4 of a frame 3 supporting the bulb holders 6, . nut 5 securing the frame to the caps. The tube 1 may be of blue-tinted glass and may be secured to a wall, ceiling, shop window &c. by brackets or suspension devices. Half of the tube may be silvered internally or otherwise made opaque and the tube used in conjunction with a trough-shaped reflector. Stencil letters or designs can be formed on the tube. The end caps are provided with ventilation holes and insulating bushes for the electric leads, and may have internal screw threads cemented to the tube 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB33959/27A GB311065A (en) | 1928-10-15 | 1928-10-15 | Improvements in tubular electric lamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB33959/27A GB311065A (en) | 1928-10-15 | 1928-10-15 | Improvements in tubular electric lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB311065A true GB311065A (en) | 1929-05-16 |
Family
ID=10359583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB33959/27A Expired GB311065A (en) | 1928-10-15 | 1928-10-15 | Improvements in tubular electric lamps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB311065A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3112962A1 (en) * | 1981-04-01 | 1982-10-14 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Luminaire for fluorescent lamps having a protective tube |
GB2180388A (en) * | 1985-09-14 | 1987-03-25 | Linolite Ltd | Lamp housing for signs |
US5493482A (en) * | 1994-05-27 | 1996-02-20 | Bowen; Donald A. | Enhanced portable fluorescent work light |
US5848836A (en) * | 1996-03-04 | 1998-12-15 | Woodhead Industries, Inc. | Tube light with fluorescent lamps |
EP0981012A2 (en) * | 1998-08-20 | 2000-02-23 | Fränkische Leuchten GmbH | Lamp |
-
1928
- 1928-10-15 GB GB33959/27A patent/GB311065A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3112962A1 (en) * | 1981-04-01 | 1982-10-14 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Luminaire for fluorescent lamps having a protective tube |
GB2180388A (en) * | 1985-09-14 | 1987-03-25 | Linolite Ltd | Lamp housing for signs |
US5493482A (en) * | 1994-05-27 | 1996-02-20 | Bowen; Donald A. | Enhanced portable fluorescent work light |
US5848836A (en) * | 1996-03-04 | 1998-12-15 | Woodhead Industries, Inc. | Tube light with fluorescent lamps |
EP0981012A2 (en) * | 1998-08-20 | 2000-02-23 | Fränkische Leuchten GmbH | Lamp |
EP0981012A3 (en) * | 1998-08-20 | 2001-10-31 | Fränkische Leuchten GmbH | Lamp |
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