GB359777A - Improvements in and relating to reflectors for electric lighting fittings - Google Patents

Improvements in and relating to reflectors for electric lighting fittings

Info

Publication number
GB359777A
GB359777A GB36222/30A GB3622230A GB359777A GB 359777 A GB359777 A GB 359777A GB 36222/30 A GB36222/30 A GB 36222/30A GB 3622230 A GB3622230 A GB 3622230A GB 359777 A GB359777 A GB 359777A
Authority
GB
United Kingdom
Prior art keywords
reflectors
centre
white
progressively towards
elements
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
GB36222/30A
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.)
WILLIAM BLANCHARD TOPP
Original Assignee
WILLIAM BLANCHARD TOPP
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 WILLIAM BLANCHARD TOPP filed Critical WILLIAM BLANCHARD TOPP
Publication of GB359777A publication Critical patent/GB359777A/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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • 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
    • F21V13/10—Combinations of only two kinds of elements the elements being reflectors and screens

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

359,777. Semi-indirect lighting. TOPP, W. B., 32, Laburnum Street, Blackburn, Victoria, Australia. Dec. 1, 1930, No. 36222. Convention date, Jan. 24. [Class 75 (ii).] Reflectors and reflector holders.- A pendant, standard or bracket lamp for semiindirect lighting comprises an electric lamp bulb B surrounded by a plurality of substantially straight - walled elements A having inner and outer highly polished or matt reflecting surfaces and arranged concentrically in stepped formation. The elements A may be circular or polygonal in cross section, their depths may increase progressively towards the centre, and they may be carried by brackets C so that their spacing is uniform or decreases progressively towards the centre. They may be made of metal or other opaque non-fragile material coated with white, cream, or other coloured lacquer or enamel, or they may be made of white opal or other glass.
GB36222/30A 1930-01-24 1930-12-01 Improvements in and relating to reflectors for electric lighting fittings Expired GB359777A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU359777X 1930-01-24

Publications (1)

Publication Number Publication Date
GB359777A true GB359777A (en) 1931-10-29

Family

ID=3723250

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36222/30A Expired GB359777A (en) 1930-01-24 1930-12-01 Improvements in and relating to reflectors for electric lighting fittings

Country Status (1)

Country Link
GB (1) GB359777A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625648A (en) * 1951-01-20 1953-01-13 Fred S Zenda Collapsible and invertible lamp shade

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625648A (en) * 1951-01-20 1953-01-13 Fred S Zenda Collapsible and invertible lamp shade

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