GB568400A - Improvements in or relating to electric signalling systems - Google Patents
Improvements in or relating to electric signalling systemsInfo
- Publication number
- GB568400A GB568400A GB1589343A GB1589343A GB568400A GB 568400 A GB568400 A GB 568400A GB 1589343 A GB1589343 A GB 1589343A GB 1589343 A GB1589343 A GB 1589343A GB 568400 A GB568400 A GB 568400A
- Authority
- GB
- United Kingdom
- Prior art keywords
- follow
- pointer
- condenser
- milliammeter
- resistances
- 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
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Meter Arrangements (AREA)
Abstract
568,400. Telemetering systems. STANDARD TELEPHONES & CABLES, Ltd., and CHAMBERS, C. H. Sept. 28, 1943, No. 15893. [Class 40 (i)] In a telemetering system in which a follow-up member 2, 3 straddles the pointer 1, contact between the two members varies the charge on a large-capacity condenser C1 which controls the grid potential of a thermionic valve V1 and the anode current of the latter flows in series through a milliammeter M1 actuating the follow-up member and a distant milliammeter M2. A recording instrument M3 may also be included in the circuit. The condenser C1 is connected between the grid and the junction point of two resistances R4, R5 which are connected between the cathode and the negative terminal of the supply, and alternative circuits for charging the condenser in opposite directions are made through adjustable high resistances R1, R2 when the pointer 1 engages the arms 2, 3 of the follow-up member. Instead of the members making contact, an optical method may be employed for detecting the relative positions of the pointer and follow-up member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1589343A GB568400A (en) | 1943-09-28 | 1943-09-28 | Improvements in or relating to electric signalling systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1589343A GB568400A (en) | 1943-09-28 | 1943-09-28 | Improvements in or relating to electric signalling systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB568400A true GB568400A (en) | 1945-04-03 |
Family
ID=10067434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1589343A Expired GB568400A (en) | 1943-09-28 | 1943-09-28 | Improvements in or relating to electric signalling systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB568400A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE945133C (en) * | 1951-12-12 | 1956-06-28 | Marcel Levy Lebar | Device for the electrical control of the adjustments of a moving body |
| DE964102C (en) * | 1953-11-28 | 1957-05-16 | Licentia Gmbh | Follow-up circuit to increase the torque |
-
1943
- 1943-09-28 GB GB1589343A patent/GB568400A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE945133C (en) * | 1951-12-12 | 1956-06-28 | Marcel Levy Lebar | Device for the electrical control of the adjustments of a moving body |
| DE964102C (en) * | 1953-11-28 | 1957-05-16 | Licentia Gmbh | Follow-up circuit to increase the torque |
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