GB908734A - Improvements in or relating to electric lighting fittings - Google Patents

Improvements in or relating to electric lighting fittings

Info

Publication number
GB908734A
GB908734A GB1866360A GB1866360A GB908734A GB 908734 A GB908734 A GB 908734A GB 1866360 A GB1866360 A GB 1866360A GB 1866360 A GB1866360 A GB 1866360A GB 908734 A GB908734 A GB 908734A
Authority
GB
United Kingdom
Prior art keywords
segments
electric
axis
shaped
shades
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
GB1866360A
Inventor
Bryan Berry Milner
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB1866360A priority Critical patent/GB908734A/en
Publication of GB908734A publication Critical patent/GB908734A/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
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/168—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being resilient rings acting substantially isotropically, e.g. split rings

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)

Abstract

908,734. Globes and shades for electric light fittings. GENERAL ELECTRIC CO. Ltd. May 25, 1961 [May 26, 1960], No. 18663/60. Class 75 (2). ' A shade for an electric light fitting comprises a plurality of segments designed to be assembled side by side around an axis to form an almost completely closed shell which is light transmitting over a substantial part and at least at one end of the axis is shaped to co-operate with retaining means designed to encircle and hold the segments together, the segments also being shaped to provide at one or both ends of the axis when assembled a passage or passages for the entry of electric supply conductors. In one form, the shade is made up of three similar sections 1, 2, 3, Fig. 1, fitting together to form a roughly triangular body. The sections are formed with top and bottom projections which combine to form a cylinder and are fitted into two cup-shaped elements 7, 8, the lower of which is secured to the bottom of a support rod 6 through which the electric cables to the lamps pass, the upper element being slidable on the rod 6. Various modifications employing twopart shades held together with end caps or spring retaining rings are described. The segments may be plain or coloured, transparent or translucent and may be provided with internal prisms for modifying the light distribution. Mating grooves may be provided in the segments to form ventilation holes.
GB1866360A 1960-05-26 1960-05-26 Improvements in or relating to electric lighting fittings Expired GB908734A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1866360A GB908734A (en) 1960-05-26 1960-05-26 Improvements in or relating to electric lighting fittings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1866360A GB908734A (en) 1960-05-26 1960-05-26 Improvements in or relating to electric lighting fittings

Publications (1)

Publication Number Publication Date
GB908734A true GB908734A (en) 1962-10-24

Family

ID=10116314

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1866360A Expired GB908734A (en) 1960-05-26 1960-05-26 Improvements in or relating to electric lighting fittings

Country Status (1)

Country Link
GB (1) GB908734A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6084010U (en) * 1983-11-14 1985-06-10 東芝テック株式会社 lighting equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6084010U (en) * 1983-11-14 1985-06-10 東芝テック株式会社 lighting equipment
JPS6348888Y2 (en) * 1983-11-14 1988-12-15

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