GB208388A - Improvements in or relating to searchlights or other projection apparatus - Google Patents

Improvements in or relating to searchlights or other projection apparatus

Info

Publication number
GB208388A
GB208388A GB3509422A GB3509422A GB208388A GB 208388 A GB208388 A GB 208388A GB 3509422 A GB3509422 A GB 3509422A GB 3509422 A GB3509422 A GB 3509422A GB 208388 A GB208388 A GB 208388A
Authority
GB
United Kingdom
Prior art keywords
searchlights
relating
projection apparatus
reflector
search
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
GB3509422A
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 GB3509422A priority Critical patent/GB208388A/en
Publication of GB208388A publication Critical patent/GB208388A/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
    • F21V7/00—Reflectors for light sources

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

208,388. Hughes, G. A. Dec. 23, 1922. Search-lights; projectors. - A search-light or like light-projector is provided with a main aperture d for a normal parallel beam and a smaller supplemental aperture e for a diverging beam produced by displacing an electric arc or other source of illumination either above or below, or to one side or the other, relatively to the axis of the reflector. Preferably the reflector is tilted as by means of a handle f.
GB3509422A 1922-12-23 1922-12-23 Improvements in or relating to searchlights or other projection apparatus Expired GB208388A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3509422A GB208388A (en) 1922-12-23 1922-12-23 Improvements in or relating to searchlights or other projection apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3509422A GB208388A (en) 1922-12-23 1922-12-23 Improvements in or relating to searchlights or other projection apparatus

Publications (1)

Publication Number Publication Date
GB208388A true GB208388A (en) 1923-12-20

Family

ID=10373730

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3509422A Expired GB208388A (en) 1922-12-23 1922-12-23 Improvements in or relating to searchlights or other projection apparatus

Country Status (1)

Country Link
GB (1) GB208388A (en)

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