GB423214A - Improvements in and relating to electric signs - Google Patents

Improvements in and relating to electric signs

Info

Publication number
GB423214A
GB423214A GB36462/33A GB3646233A GB423214A GB 423214 A GB423214 A GB 423214A GB 36462/33 A GB36462/33 A GB 36462/33A GB 3646233 A GB3646233 A GB 3646233A GB 423214 A GB423214 A GB 423214A
Authority
GB
United Kingdom
Prior art keywords
visible
opening
lamps
sheet
amber
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
GB36462/33A
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.)
WILLIAM MERCER HOLLANDS
Original Assignee
WILLIAM MERCER HOLLANDS
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 WILLIAM MERCER HOLLANDS filed Critical WILLIAM MERCER HOLLANDS
Priority to GB36462/33A priority Critical patent/GB423214A/en
Publication of GB423214A publication Critical patent/GB423214A/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
    • G09F13/12—Signs, boards or panels, illuminated from behind the insignia using a transparent mirror or other light reflecting surface transparent to transmitted light whereby a sign, symbol, picture or other is visible only when illuminated
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/50—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels
    • G02B30/56—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels by projecting aerial or floating images

Landscapes

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

Abstract

423,214. Electric signalling systems. HOLLANDS, W. M., Hill Cottage, Portsmouth Road, Esher, Surrey. May 3, 1934, No. 36462/33. [Classes 40 (i) and 118 (ii)] At the front opening of the casing of the final indicator of an electric indicator is provided a grid of horizontally-disposed spacedapart strips to restrict entry of light, the indicator comprising two lamps adapted to illuminate stencils visible through the front opening, one stencil being visible through an inclined sheet of glass and the other being visible by reflection from the glass. The invention is described as applied to a road traffic control sign in which the words " stop " and " go " are made visible through the opening and in which red, amber and green lights are also provided. As shown the casing 4, provided with the strips 14 to prevent light from entering the casing, carries two lamps 6 and 8 and a sheet of transparent reflecting material 7, which is inclined so that light from lamp 6 shines through the sheet to the opening 5, whilst that from lamp 8 is reflected by the sheet towards the opening. Glass panels 11 and 13 carry the words " stop " and " go respectively, so that when the lamps 6 and 8 are lit the words are visible through the opening. Windows 16, coloured red, amber and green, are also provided, the windows being illuminated by lamps 17, 18 and 19 respectively, and the wiring being arranged so that the red signal and the word " stop " are visible together as are the green signal and the word "go." Neither sign is illuminated when the lamp 18, behind the amber windows is alight.
GB36462/33A 1934-05-03 1934-05-03 Improvements in and relating to electric signs Expired GB423214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB36462/33A GB423214A (en) 1934-05-03 1934-05-03 Improvements in and relating to electric signs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36462/33A GB423214A (en) 1934-05-03 1934-05-03 Improvements in and relating to electric signs

Publications (1)

Publication Number Publication Date
GB423214A true GB423214A (en) 1935-01-28

Family

ID=10388363

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36462/33A Expired GB423214A (en) 1934-05-03 1934-05-03 Improvements in and relating to electric signs

Country Status (1)

Country Link
GB (1) GB423214A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3363245A (en) * 1965-02-10 1968-01-09 Friden Inc Digital display having laterally interjacent characters projected by mirror means
US3368198A (en) * 1965-01-22 1968-02-06 Bliss E W Co Traffic signal having plural lens projection apparatus
US3676845A (en) * 1970-02-19 1972-07-11 Anthony Siksai Turn signal indicating system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3368198A (en) * 1965-01-22 1968-02-06 Bliss E W Co Traffic signal having plural lens projection apparatus
US3363245A (en) * 1965-02-10 1968-01-09 Friden Inc Digital display having laterally interjacent characters projected by mirror means
US3676845A (en) * 1970-02-19 1972-07-11 Anthony Siksai Turn signal indicating system

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