GB204713A - Switch mechanism for electric light advertisements - Google Patents

Switch mechanism for electric light advertisements

Info

Publication number
GB204713A
GB204713A GB24051/23A GB2405123A GB204713A GB 204713 A GB204713 A GB 204713A GB 24051/23 A GB24051/23 A GB 24051/23A GB 2405123 A GB2405123 A GB 2405123A GB 204713 A GB204713 A GB 204713A
Authority
GB
United Kingdom
Prior art keywords
switchboard
switchboards
lamps
sign
plate
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
GB24051/23A
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
Publication of GB204713A publication Critical patent/GB204713A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/004—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes to give the appearance of moving signs

Landscapes

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

Abstract

204,713. Hirsch, H. Sept. 27, 1922, [Convention date]. Stencil switches.-A monogrammic sign comprising a field 1 of lamps selectively illuminated is provided with two controlling switchboards 2, 3 arranged in parallel so that a word set by one switchboard can be changed to a. word set by the other switchboard without any interval of darkness, by moving the switch 6 so that first one, then both, then the other of the switchboards is operative. Each lamp is connected to a corresponding contact 17, Fig. 2, in each switchboard, and opposite the contacts 17 are plunger contacts 20 all connected to a main through the plate 15, and so through a current source to the opposite poles of the lamps. When the plate is shut down, contact is made selectively by those plungers 20 which are able to pass through perforations in a sheet 18. In order to produce successive illumination of the letters in the sign, an imperforate sheet 19 may be gradually withdrawn while the switchboard is in circuit.
GB24051/23A 1922-09-27 1923-09-26 Switch mechanism for electric light advertisements Expired GB204713A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE204713X 1922-09-27

Publications (1)

Publication Number Publication Date
GB204713A true GB204713A (en) 1924-04-24

Family

ID=5783326

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24051/23A Expired GB204713A (en) 1922-09-27 1923-09-26 Switch mechanism for electric light advertisements

Country Status (1)

Country Link
GB (1) GB204713A (en)

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