GB355440A - Improvements in and relating to indicators operated electromagnetically - Google Patents

Improvements in and relating to indicators operated electromagnetically

Info

Publication number
GB355440A
GB355440A GB2051730A GB2051730A GB355440A GB 355440 A GB355440 A GB 355440A GB 2051730 A GB2051730 A GB 2051730A GB 2051730 A GB2051730 A GB 2051730A GB 355440 A GB355440 A GB 355440A
Authority
GB
United Kingdom
Prior art keywords
pivoted
sheet
flap
indicators
london
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
GB2051730A
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.)
Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and 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 Siemens Brothers and Co Ltd filed Critical Siemens Brothers and Co Ltd
Priority to GB2051730A priority Critical patent/GB355440A/en
Publication of GB355440A publication Critical patent/GB355440A/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
    • G09F9/37—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 movable elements
    • G09F9/375—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 movable elements the position of the elements being controlled by the application of a magnetic field
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/24—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission with indicator element moving about a pivot, e.g. hinged flap or rotating vane

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Drawing Aids And Blackboards (AREA)

Abstract

355,440. Monogrammic signs; twoposition indicators. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, London, and GRINSTED, W. H., Under the Plane, London Lane, Bromley, Kent. July 7, 1930, No. 20517. [Classes 40 (i) and 118 (ii).] Monogrammic signs, suitable for multi-unit display indicators for use with totalizators, comprise fields of pivoted elements adapted to be swung electromagnetically into one or other of two positions. Each element consists of a flat plate 1 fitted with springs 7 and pivoted at its edge 6 to the end of a permanent magnet 5 arranged so as to induce like poles at the ends of a U-shaped core 4, 2, 4, each leg 4 being provided with a winding whereby it may be electrically magnetized to repel or attract the plate 1. A stationary sheet 10 of non-magnetic material co-operates with the pivoted flap to give the desired indications. For example, the halves of the sheet 10 may be of contrasting colours to correspond with the colours on each side of the pivoted flap. Alternatively, the sheet 10 may form a background for the indications on the two sides of the flap.
GB2051730A 1930-07-07 1930-07-07 Improvements in and relating to indicators operated electromagnetically Expired GB355440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2051730A GB355440A (en) 1930-07-07 1930-07-07 Improvements in and relating to indicators operated electromagnetically

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2051730A GB355440A (en) 1930-07-07 1930-07-07 Improvements in and relating to indicators operated electromagnetically

Publications (1)

Publication Number Publication Date
GB355440A true GB355440A (en) 1931-08-27

Family

ID=10147183

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2051730A Expired GB355440A (en) 1930-07-07 1930-07-07 Improvements in and relating to indicators operated electromagnetically

Country Status (1)

Country Link
GB (1) GB355440A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5500652A (en) * 1992-11-19 1996-03-19 American Electronic Sign Company Display element with reflective lens
US6677922B1 (en) 1995-12-04 2004-01-13 3M Innovative Properties Company Display element having retroreflective surface

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5500652A (en) * 1992-11-19 1996-03-19 American Electronic Sign Company Display element with reflective lens
US6677922B1 (en) 1995-12-04 2004-01-13 3M Innovative Properties Company Display element having retroreflective surface

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