GB757631A - Improvements in or relating to electric lamp shade fittings - Google Patents

Improvements in or relating to electric lamp shade fittings

Info

Publication number
GB757631A
GB757631A GB2406/54A GB240654A GB757631A GB 757631 A GB757631 A GB 757631A GB 2406/54 A GB2406/54 A GB 2406/54A GB 240654 A GB240654 A GB 240654A GB 757631 A GB757631 A GB 757631A
Authority
GB
United Kingdom
Prior art keywords
shade
holder
lamp
annulus
lugs
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
GB2406/54A
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.)
WALTER BOISSEVAIN
Original Assignee
WALTER BOISSEVAIN
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 WALTER BOISSEVAIN filed Critical WALTER BOISSEVAIN
Priority to GB2406/54A priority Critical patent/GB757631A/en
Publication of GB757631A publication Critical patent/GB757631A/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
    • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/14—Covers for frames; Frameless shades
    • F21V1/16—Covers for frames; Frameless shades characterised by the material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • 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
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
    • 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
    • F21V17/06—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages the fastening being onto or by the lampholder
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

757,631. Lamp shade fittings. BOISSEVAIN, W. Oct. 1, 1954 [Jan. 26, 1954], No. 2406/54. Class 75(2). In an electric lamp shade fitting the part attached to an electric lamp holder by which part the shade is suspended comprises a cylindrical or conical element attached to the holder by an annulus having apertures therein, there being a passage between the holder and element. The shade is suspended from the element by flexible adjustable cords, wires &c. In the case of a ceiling light the element may be formed with a flange with holes through which securing means extend to the ceiling. As shown, where the cylindrical element 10 supporting the lamp shade 19 is carried by the lamp holder 14, the element 10 is provided with an internal shoulder 11 resting on top of the annulus 13 provided with holes 16 and clamped between the shoulder of the lamp holder and the usual shade fixing ring 15. The member 10 extends above the annulus 13 to hide the upper part of the holder 14 and below to encircle the neck of the lamp bulb. The bowl e.g. of moulded synthetic translucent resin has a separable rim portion 19 with an inwardly directed recessed flange 20, Fig. 1 or a plurality of lugs 30, Fig. 3 and a bottom part with concentric louvres 22-25 connected together by radiating arms 26 tapering downwards and having portions 27 projecting beyond the outermost louvre 25 to be received into the recess of flange 20 or by the lugs 30 and to be secured thereto by hollow rivets 29. The bottom may be correctly located with respect to the upper part by V -notches in the ends of the projecting arm portions 27 cooperating with V-projections in the recess of rim 20 or lugs 30. A bead-chain 18 has an enlarged ball 31 at one end to prevent its passing through the hollow rivet 29 and the other end of the chain is inserted in a key hole slot 17 of which there may be a series one above the other for adjusting the position of the shade in relation to the lamp holder to suit the lamp bulb used.
GB2406/54A 1954-01-26 1954-01-26 Improvements in or relating to electric lamp shade fittings Expired GB757631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2406/54A GB757631A (en) 1954-01-26 1954-01-26 Improvements in or relating to electric lamp shade fittings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2406/54A GB757631A (en) 1954-01-26 1954-01-26 Improvements in or relating to electric lamp shade fittings

Publications (1)

Publication Number Publication Date
GB757631A true GB757631A (en) 1956-09-19

Family

ID=9738993

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2406/54A Expired GB757631A (en) 1954-01-26 1954-01-26 Improvements in or relating to electric lamp shade fittings

Country Status (1)

Country Link
GB (1) GB757631A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5978524A (en) * 1994-09-09 1999-11-02 Gemfire Corporation Phosphor RE-radiation in integrated optics
DE10118783A1 (en) * 2001-04-17 2002-10-31 Siteco Beleuchtungstech Gmbh System mounting grid components at illumination opening of lighting unit, comprises fastening assembly installed in lamp reflector enclosure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5978524A (en) * 1994-09-09 1999-11-02 Gemfire Corporation Phosphor RE-radiation in integrated optics
US6118908A (en) * 1994-09-09 2000-09-12 Gemfire Corporation Integrated optical device with phosphor in substrate pit
DE10118783A1 (en) * 2001-04-17 2002-10-31 Siteco Beleuchtungstech Gmbh System mounting grid components at illumination opening of lighting unit, comprises fastening assembly installed in lamp reflector enclosure
DE10118783B4 (en) * 2001-04-17 2005-08-04 Siteco Beleuchtungstechnik Gmbh Mounting system for a luminaire component and luminaire with such a mounting system

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