GB524636A - Improvements in electric lamps and fittings - Google Patents

Improvements in electric lamps and fittings

Info

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
Application number
GB3515/39A
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 GB3515/39A priority Critical patent/GB524636A/en
Publication of GB524636A publication Critical patent/GB524636A/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
    • 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.
GB3515/39A 1939-02-02 1939-02-02 Improvements in electric lamps and fittings Expired GB524636A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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