GB189820027A - Improvements in Electrical Apparatus for Exhibiting and Changing Advertisements, Signs, and the like Devices. - Google Patents

Improvements in Electrical Apparatus for Exhibiting and Changing Advertisements, Signs, and the like Devices.

Info

Publication number
GB189820027A
GB189820027A GB189820027DA GB189820027A GB 189820027 A GB189820027 A GB 189820027A GB 189820027D A GB189820027D A GB 189820027DA GB 189820027 A GB189820027 A GB 189820027A
Authority
GB
United Kingdom
Prior art keywords
signs
word
letter
lamps
board
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
Inventor
Arthur Douglas Douglass
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
Application granted granted Critical
Publication of GB189820027A publication Critical patent/GB189820027A/en
Expired legal-status Critical Current

Links

Landscapes

  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

20,027. Douglass, A. D. Sept. 21. Advertising; signs.-Advertisements, signs, and the like are formed by means of incandescent lamps, each of which is held in a compartment in a board A, any desired letter or numeral being formed by lighting certain lamps. To represent a word several boards are used, each board serving to represent a letter ; but a word may be spelled out by means of a single board on which the letters composing the word are exhibited in succession. The wires connected with the several lamps which go to form each letter are united in terminals F which are automatically thrown into circuit to form any desired letters by means of a switch device consisting of a drum H having fingers or projections which operate contacts threaded on a rod Q. The drum is rotated by a motor, through pawl and ratchet gearing, as shown.
GB189820027D 1898-09-21 1898-09-21 Improvements in Electrical Apparatus for Exhibiting and Changing Advertisements, Signs, and the like Devices. Expired GB189820027A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB189820027T 1898-09-21

Publications (1)

Publication Number Publication Date
GB189820027A true GB189820027A (en) 1899-07-22

Family

ID=32616473

Family Applications (1)

Application Number Title Priority Date Filing Date
GB189820027D Expired GB189820027A (en) 1898-09-21 1898-09-21 Improvements in Electrical Apparatus for Exhibiting and Changing Advertisements, Signs, and the like Devices.

Country Status (1)

Country Link
GB (1) GB189820027A (en)

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