GB495533A - Improvements in or relating to electric incandescent lamps - Google Patents

Improvements in or relating to electric incandescent lamps

Info

Publication number
GB495533A
GB495533A GB4813/38A GB481338A GB495533A GB 495533 A GB495533 A GB 495533A GB 4813/38 A GB4813/38 A GB 4813/38A GB 481338 A GB481338 A GB 481338A GB 495533 A GB495533 A GB 495533A
Authority
GB
United Kingdom
Prior art keywords
relating
shade
incandescent lamps
electric incandescent
feb
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
GB4813/38A
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.)
Gluehlampenfabrik Gloria A G
Original Assignee
Gluehlampenfabrik Gloria A G
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 Gluehlampenfabrik Gloria A G filed Critical Gluehlampenfabrik Gloria A G
Publication of GB495533A publication Critical patent/GB495533A/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
    • 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)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

495,533. Lampshades. GLUHLAMPENFABRIK GLORIA AKT.-GES. Feb. 16, 1938, No. 4813. Convention date, Feb. 19, 1937. [Class 75 (ii)] For A.R.P. purposes an aluminium shade 2, having a light exit aperture of diameter b less than the height a of the shade can be slipped on over an electric bulb 1 which may be coloured and insulated if necessary from the shade.
GB4813/38A 1937-02-19 1938-02-16 Improvements in or relating to electric incandescent lamps Expired GB495533A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH495533X 1937-02-19

Publications (1)

Publication Number Publication Date
GB495533A true GB495533A (en) 1938-11-15

Family

ID=4516737

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4813/38A Expired GB495533A (en) 1937-02-19 1938-02-16 Improvements in or relating to electric incandescent lamps

Country Status (1)

Country Link
GB (1) GB495533A (en)

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