GB1323059A - Electric display indicators - Google Patents
Electric display indicatorsInfo
- Publication number
- GB1323059A GB1323059A GB1323059DA GB1323059A GB 1323059 A GB1323059 A GB 1323059A GB 1323059D A GB1323059D A GB 1323059DA GB 1323059 A GB1323059 A GB 1323059A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- polepiece
- winding
- electric display
- display indicators
- 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
Links
Classifications
-
- 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)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Displays For Variable Information Using Movable Means (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
1323059 Electrically-operated display devices; visible signalling apparatus PLESSEY CO Ltd 30 Sept 1970 [1 Oct 1969] 48265/69 Headings G4F and G5C A display indicator comprises an indicator drum 1 having a permanent magnet 5 arranged internally on a spindle 2, and an electromagnet comprising an iron core 11 embraced by an energizing winding 6, and provided with a curved polepiece 7. Energization of the winding 6 with direct current causes a magnetic polarity in the polepiece 7 which attracts one end of the magnet and repels the other (shown dotted in Fig. 1), and thus rotates the drum 1. Similarly, if the coil is energized in the opposite sense, the opposite side of the drum will be displayed. The drum is viewed through a window at the left-hand end of the device as seen in Fig. 1.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4826569 | 1969-10-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1323059A true GB1323059A (en) | 1973-07-11 |
Family
ID=10447977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1323059D Expired GB1323059A (en) | 1969-10-01 | 1969-10-01 | Electric display indicators |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1323059A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2446547C2 (en) * | 2010-01-25 | 2012-03-27 | Общество с ограниченной ответственностью "Механотронные дисплеи" | Electromechanical drive of three-coloured head of raster image element |
RU2501150C1 (en) * | 2012-07-31 | 2013-12-10 | Общество с ограниченной ответственностью "Механотронные дисплеи" | Electromechanical drive for detecting head of bitmap image element (versions) and electromechanical display manufactured with use of above drive |
-
1969
- 1969-10-01 GB GB1323059D patent/GB1323059A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2446547C2 (en) * | 2010-01-25 | 2012-03-27 | Общество с ограниченной ответственностью "Механотронные дисплеи" | Electromechanical drive of three-coloured head of raster image element |
RU2501150C1 (en) * | 2012-07-31 | 2013-12-10 | Общество с ограниченной ответственностью "Механотронные дисплеи" | Electromechanical drive for detecting head of bitmap image element (versions) and electromechanical display manufactured with use of above drive |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |