GB542855A - Improvements in and relating to masks for vehicle head lamps - Google Patents

Improvements in and relating to masks for vehicle head lamps

Info

Publication number
GB542855A
GB542855A GB16424/40A GB1642440A GB542855A GB 542855 A GB542855 A GB 542855A GB 16424/40 A GB16424/40 A GB 16424/40A GB 1642440 A GB1642440 A GB 1642440A GB 542855 A GB542855 A GB 542855A
Authority
GB
United Kingdom
Prior art keywords
filter
casing
slots
strips
filters
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
GB16424/40A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB16424/40A priority Critical patent/GB542855A/en
Publication of GB542855A publication Critical patent/GB542855A/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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof

Landscapes

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

Abstract

542,855. Masks for vehicle lamps BRYDE, E. A. Nov. 13, 1940, No. 16424. [Class 75 (iv)] A vehicle head-lamp mask comprising a sheet metal disc or filter fitting the head lamp aperture and formed with'rectangular slots 2, 3, 4, 5, a rectangular casing 6, and a front filter 7 slotted to correspond with the rear filter 1 is provided adjacent the ends of the slots with parabolically curved reflecting strips 14 to increase the lateral spread of the beam. The mask may be fitted on its rear surface with a frosted glass diffuser plate 11 secured in position by the screws 12 which secure the casing to the filter 1. The strips 14 may have bent ends passing through the filter 1 and clamped in position by the plate 11. Additional filters 8, 9, 10 may be provided in the casing 6, the rear filters 9, 10 being notched to support the front ends of the strips 14. The slots in the filters are so arranged that the issuing light is directed below the horizontal. A flap 23 pivoted at the front of the casing may be turned downwardly when the headlamp is not in use to exclude dirt and damp.
GB16424/40A 1940-11-13 1940-11-13 Improvements in and relating to masks for vehicle head lamps Expired GB542855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB16424/40A GB542855A (en) 1940-11-13 1940-11-13 Improvements in and relating to masks for vehicle head lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16424/40A GB542855A (en) 1940-11-13 1940-11-13 Improvements in and relating to masks for vehicle head lamps

Publications (1)

Publication Number Publication Date
GB542855A true GB542855A (en) 1942-01-29

Family

ID=10077065

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16424/40A Expired GB542855A (en) 1940-11-13 1940-11-13 Improvements in and relating to masks for vehicle head lamps

Country Status (1)

Country Link
GB (1) GB542855A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507552A (en) * 1944-01-08 1950-05-16 Us Commerce Blackout automobile headlight mask

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507552A (en) * 1944-01-08 1950-05-16 Us Commerce Blackout automobile headlight mask

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