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GB184183A - Improvements in or relating to shades for incandescent electric lamps - Google Patents

Improvements in or relating to shades for incandescent electric lamps

Info

Publication number
GB184183A
GB184183A GB20993/22A GB2099322A GB184183A GB 184183 A GB184183 A GB 184183A GB 20993/22 A GB20993/22 A GB 20993/22A GB 2099322 A GB2099322 A GB 2099322A GB 184183 A GB184183 A GB 184183A
Authority
GB
United Kingdom
Prior art keywords
shades
lamp
shade
relating
incandescent electric
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
GB20993/22A
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.)
APP ECONOMIQUES SOC IND DES
Original Assignee
APP ECONOMIQUES SOC IND DES
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 APP ECONOMIQUES SOC IND DES filed Critical APP ECONOMIQUES SOC IND DES
Publication of GB184183A publication Critical patent/GB184183A/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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/04—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 light source

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Abstract

184,183. Soc. Industrielle des Appareils Economiques. Aug, 6, 1921, [Convention date]. Shades; shadeholders; mounting shades on electric lamp bulbs.-An incandescent electric lamp a, preferably of flattened ellipsoid form, is fitted with a prismatic glass or crystal shade b, of similar shape to the upper portion of the lamp and provided with internal projections which rest on the lamp, the shade being held in position by a metal ring c, which fits over a collar i on the shade and is held by friction on an enlarged part g of the lamp cap d.
GB20993/22A 1921-08-06 1922-08-01 Improvements in or relating to shades for incandescent electric lamps Expired GB184183A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR184183X 1921-08-06

Publications (1)

Publication Number Publication Date
GB184183A true GB184183A (en) 1923-07-05

Family

ID=8878476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20993/22A Expired GB184183A (en) 1921-08-06 1922-08-01 Improvements in or relating to shades for incandescent electric lamps

Country Status (1)

Country Link
GB (1) GB184183A (en)

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