GB386189A - Improvements in and relating to indicating systems - Google Patents

Improvements in and relating to indicating systems

Info

Publication number
GB386189A
GB386189A GB11621/32A GB1162132A GB386189A GB 386189 A GB386189 A GB 386189A GB 11621/32 A GB11621/32 A GB 11621/32A GB 1162132 A GB1162132 A GB 1162132A GB 386189 A GB386189 A GB 386189A
Authority
GB
United Kingdom
Prior art keywords
relays
april
energized
relating
lamps
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
GB11621/32A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB386189A publication Critical patent/GB386189A/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
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/307—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being incandescent filaments

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

386,189. Monogrammic signs. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Johnston, A. J. ; .112, East Magnolia Avenue, Aldan, Pennsylvania, U.S.A.) April 22, 1932, No. 11621. Convention date, April 24, 1931. [Class 118 (ii).] Monogrammic signs for displaying numerals for score boards, Fig. 3, and other purposes comprise each a field of electric lamps L<1> .. L<24> selectively controlled at a distance by a system including only four relays A .. D, which are selectively energized by keys K<0> .. K9 to give the corresponding numerals 1 .. 10. The relays are provided with contacts a<1> .. al4, b<1> .. b<15>, c<1> .. c<15>, d<1> .. d<15>, so connected that not more than two of the relays have to be energized to form any one digit or character, and three lamps constitute the maximum number connected in series with any relay contact under any normal operating condition.
GB11621/32A 1931-04-24 1932-04-22 Improvements in and relating to indicating systems Expired GB386189A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US386189XA 1931-04-24 1931-04-24

Publications (1)

Publication Number Publication Date
GB386189A true GB386189A (en) 1933-01-12

Family

ID=21900932

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11621/32A Expired GB386189A (en) 1931-04-24 1932-04-22 Improvements in and relating to indicating systems

Country Status (1)

Country Link
GB (1) GB386189A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174834A (en) * 1985-04-24 1986-11-12 Gen Instr Lamps Ltd Display assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174834A (en) * 1985-04-24 1986-11-12 Gen Instr Lamps Ltd Display assembly
US4724629A (en) * 1985-04-24 1988-02-16 VCH International Limited Illuminated display board

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