GB175414A - Improvements in and relating to illuminated signs or advertisements - Google Patents

Improvements in and relating to illuminated signs or advertisements

Info

Publication number
GB175414A
GB175414A GB3236320A GB3236320A GB175414A GB 175414 A GB175414 A GB 175414A GB 3236320 A GB3236320 A GB 3236320A GB 3236320 A GB3236320 A GB 3236320A GB 175414 A GB175414 A GB 175414A
Authority
GB
United Kingdom
Prior art keywords
sheets
angles
illuminated
advertisements
relating
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
GB3236320A
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 GB3236320A priority Critical patent/GB175414A/en
Publication of GB175414A publication Critical patent/GB175414A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0409—Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

175,414. Beville, W. J. Nov. 16, 1920. Signs.-A stencilled or like sign is illuminated by light from an electric or other lamp transmitted through two adjacent sheets of prismatic glass, the ridges on the sheets being at right-angles or at other angles to each other. As shown in section in Fig. 4, the ridges 2 on the glass sheets 1 are at right-angles to, and in contact with, each other. The sheets may be slightly separated, their edges being sealed to exclude dust. When a sign is divided into separately-illuminated sections, the sheets are divided into corresponding sections, and each pair is separated from the adjacent pairs by strips of opaque material or by painting the edges.
GB3236320A 1920-11-16 1920-11-16 Improvements in and relating to illuminated signs or advertisements Expired GB175414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3236320A GB175414A (en) 1920-11-16 1920-11-16 Improvements in and relating to illuminated signs or advertisements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3236320A GB175414A (en) 1920-11-16 1920-11-16 Improvements in and relating to illuminated signs or advertisements

Publications (1)

Publication Number Publication Date
GB175414A true GB175414A (en) 1922-02-16

Family

ID=10337452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3236320A Expired GB175414A (en) 1920-11-16 1920-11-16 Improvements in and relating to illuminated signs or advertisements

Country Status (1)

Country Link
GB (1) GB175414A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118114A (en) * 1974-08-21 1978-10-03 Minnesota Mining And Manufacturing Company Low-glare overhead projector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118114A (en) * 1974-08-21 1978-10-03 Minnesota Mining And Manufacturing Company Low-glare overhead projector

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