GB311065A - Improvements in tubular electric lamps - Google Patents

Improvements in tubular electric lamps

Info

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
Application number
GB33959/27A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB33959/27A priority Critical patent/GB311065A/en
Publication of GB311065A publication Critical patent/GB311065A/en
Expired legal-status Critical Current

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.
GB33959/27A 1928-10-15 1928-10-15 Improvements in tubular electric lamps Expired GB311065A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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