GB924714A - Improvements relating to indicator devices - Google Patents
Improvements relating to indicator devicesInfo
- Publication number
- GB924714A GB924714A GB1823060A GB1823060A GB924714A GB 924714 A GB924714 A GB 924714A GB 1823060 A GB1823060 A GB 1823060A GB 1823060 A GB1823060 A GB 1823060A GB 924714 A GB924714 A GB 924714A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotor
- coils
- pillar
- air gap
- magnetic circuit
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
924,714. Electric selective signalling. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. May 8, 1961 [May 24, 1960], No. 18230/60. Class 40 (1). An indicator comprises a plurality of coils A, Fig. 1, a selected one of which may be energized to set up a magnetic circuit through core B, base C, pillar D and rotor E, the latter being shaped, e.g. as shown in Fig. 3, so as to form a variable air gap between itself and the coils, the rotor taking up a position in which the minimum air gap is in the magnetic circuit set up by the energized coil. The tip L of rotor E may be bent over towards the coils, and the rotor may extend radially beyond the coils, as shown in Fig. 1, or the maximum radius of the rotor may be less than the radial distance of the coils from pillar D. A plate carrying translucent or cut-out characters is mounted for rotation with rotor E, the characters being projected on to a screen. An extra electromagnet may be provided whereby the rotor may be maintained in its last-assumed position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1823060A GB924714A (en) | 1960-05-24 | 1960-05-24 | Improvements relating to indicator devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1823060A GB924714A (en) | 1960-05-24 | 1960-05-24 | Improvements relating to indicator devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB924714A true GB924714A (en) | 1963-05-01 |
Family
ID=10108886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1823060A Expired GB924714A (en) | 1960-05-24 | 1960-05-24 | Improvements relating to indicator devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB924714A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4719419A (en) * | 1985-07-15 | 1988-01-12 | Harris Graphics Corporation | Apparatus for detecting a rotary position of a shaft |
| US5027067A (en) * | 1989-05-24 | 1991-06-25 | Robert Bosch Gmbh | Measuring device for contactless measurement of a rotational angle of a rotating shaft using eddy currents |
| US5083084A (en) * | 1986-12-13 | 1992-01-21 | Robert Bosch Gmbh | Device for contactless measuring of rotational angle or rotational speed |
-
1960
- 1960-05-24 GB GB1823060A patent/GB924714A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4719419A (en) * | 1985-07-15 | 1988-01-12 | Harris Graphics Corporation | Apparatus for detecting a rotary position of a shaft |
| US5083084A (en) * | 1986-12-13 | 1992-01-21 | Robert Bosch Gmbh | Device for contactless measuring of rotational angle or rotational speed |
| US5027067A (en) * | 1989-05-24 | 1991-06-25 | Robert Bosch Gmbh | Measuring device for contactless measurement of a rotational angle of a rotating shaft using eddy currents |
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