GB459579A - Improvements in or relating to electric signalling or controlling systems - Google Patents
Improvements in or relating to electric signalling or controlling systemsInfo
- Publication number
- GB459579A GB459579A GB1942235A GB1942235A GB459579A GB 459579 A GB459579 A GB 459579A GB 1942235 A GB1942235 A GB 1942235A GB 1942235 A GB1942235 A GB 1942235A GB 459579 A GB459579 A GB 459579A
- Authority
- GB
- United Kingdom
- Prior art keywords
- windings
- relating
- controlling systems
- primary
- electric signalling
- 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
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
- G01R17/02—Arrangements in which the value to be measured is automatically compared with a reference value
- G01R17/06—Automatic balancing arrangements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
459,579. Transformers. ELECTROFLO METERS CO., Ltd., and WEY, R. J., Abbey Road, Park Royal, London. July 8, 1935, No. 19422. Addition to 454,012, [Group XXXVIII]. [Class 38 (ii)] [See also Group XXXVIII] In a system wherein a secondary member is controlled in accordance with a primary member through the action of a transformer, the circuits of which are balanced when the primary and secondary members are in corresponding positions, the transformer comprises balancing windings A, B and output windings C, D and leakage flux is minimized by providing metallic shields g, h, i on one or more of the windings or employing windings of the sandwich type. When sandwich coils are used, the windings C, D may be placed at each end of the windings A, B, Fig. 2 (not shown), or arranged outside the windings, Fig. 3 (not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1942235A GB459579A (en) | 1935-07-08 | 1935-07-08 | Improvements in or relating to electric signalling or controlling systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1942235A GB459579A (en) | 1935-07-08 | 1935-07-08 | Improvements in or relating to electric signalling or controlling systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB459579A true GB459579A (en) | 1937-01-08 |
Family
ID=10129098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1942235A Expired GB459579A (en) | 1935-07-08 | 1935-07-08 | Improvements in or relating to electric signalling or controlling systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB459579A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE975852C (en) * | 1949-11-01 | 1962-11-22 | Siemens Ag | Arrangement for controlling the speed and direction of rotation of a DC servomotor |
-
1935
- 1935-07-08 GB GB1942235A patent/GB459579A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE975852C (en) * | 1949-11-01 | 1962-11-22 | Siemens Ag | Arrangement for controlling the speed and direction of rotation of a DC servomotor |
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