GB1199723A - Improvements relating to Electromagnetic Indicators - Google Patents
Improvements relating to Electromagnetic IndicatorsInfo
- Publication number
- GB1199723A GB1199723A GB4116666A GB4116666A GB1199723A GB 1199723 A GB1199723 A GB 1199723A GB 4116666 A GB4116666 A GB 4116666A GB 4116666 A GB4116666 A GB 4116666A GB 1199723 A GB1199723 A GB 1199723A
- Authority
- GB
- United Kingdom
- Prior art keywords
- indicators
- indicator
- electromagnet
- sept
- arms
- 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)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Displays For Variable Information Using Movable Means (AREA)
Abstract
1,199,723. Electromagnetic indicators. PLESSEY CO. Ltd. 12 Sept., 1967 [15 Sept., 1966], No. 41166/66. Heading G4F. [Also in Division H1] An indicator comprises a U-shaped electromagnet 1, 5 and a rotatable indicator member 7 which is attracted to a rest position by a permanent magnet such as 17 but which revolves to positions such as 15 and 16, depending upon the direction of energization of the coil 5, the arms of the electromagnet being asymmetrical so as to provide increased spacing when the indicators are arranged side by side. The spacing prevents flux crossing to other indicators. In Fig. 2 the arms have the shape shown. The indicator shown also includes a viewing lens 2, a lamp 14 and a spark suppression capacitor. The winding of the electromagnet may have two alternatively energizable windings to revolve the indicator in corresponding directions.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4116666A GB1199723A (en) | 1966-09-15 | 1966-09-15 | Improvements relating to Electromagnetic Indicators |
DE19671537645 DE1537645A1 (en) | 1966-09-15 | 1967-09-14 | Electromagnetic display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4116666A GB1199723A (en) | 1966-09-15 | 1966-09-15 | Improvements relating to Electromagnetic Indicators |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1199723A true GB1199723A (en) | 1970-07-22 |
Family
ID=10418416
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4116666A Expired GB1199723A (en) | 1966-09-15 | 1966-09-15 | Improvements relating to Electromagnetic Indicators |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1537645A1 (en) |
GB (1) | GB1199723A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1076017B (en) * | 1977-02-01 | 1985-04-22 | Nuovo Pignone Spa | IMPROVEMENTS IN A SEVEN SEGMENT ELECTROMECHANICAL NUMERIC INDICATOR |
-
1966
- 1966-09-15 GB GB4116666A patent/GB1199723A/en not_active Expired
-
1967
- 1967-09-14 DE DE19671537645 patent/DE1537645A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1537645A1 (en) | 1969-10-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |