GB218826A - Improvements in or relating to impedance bonds for use in railway signalling systems - Google Patents
Improvements in or relating to impedance bonds for use in railway signalling systemsInfo
- Publication number
- GB218826A GB218826A GB1637423A GB1637423A GB218826A GB 218826 A GB218826 A GB 218826A GB 1637423 A GB1637423 A GB 1637423A GB 1637423 A GB1637423 A GB 1637423A GB 218826 A GB218826 A GB 218826A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bond
- cable
- signalling systems
- rails
- core
- 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
- 230000011664 signaling Effects 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000000696 magnetic material Substances 0.000 abstract 1
- 239000002356 single layer Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/18—Railway track circuits
- B61L1/181—Details
- B61L1/187—Use of alternating current
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
218,826. Automatic Telephone Manufacturing Co., Ltd., Roseby, P. N., and Hudd, A. E. June 23, 1923. Inductances.-An impedance bond for use in railway signalling systems has a core 1 consisting of a number of straight rods or strips of Swedish iron or like magnetic material. Two lengths of stranded copper cable 3 are wound side by side in a single layer over the core, which may be first wound with oiled linen. The cable is surrounded only by sufficient insulation to bind the strands together for example, a binding of ordinary insulating tape. 30 turns of 37/12 S. W. G. cable may be used. The bond may be embedded in concrete 4 preferably reinforced, so as to form a rectangular block adapted to fit between the two rails. The bond is secured to the rails or to the sleepers by V-bolts. The ends of the windings are led out through holes 6. One end of each winding is connected to a rail the other ends being connected together and to the corresponding point of the next impedance bond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1637423A GB218826A (en) | 1923-06-23 | 1923-06-23 | Improvements in or relating to impedance bonds for use in railway signalling systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1637423A GB218826A (en) | 1923-06-23 | 1923-06-23 | Improvements in or relating to impedance bonds for use in railway signalling systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB218826A true GB218826A (en) | 1924-07-17 |
Family
ID=10076155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1637423A Expired GB218826A (en) | 1923-06-23 | 1923-06-23 | Improvements in or relating to impedance bonds for use in railway signalling systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB218826A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001083281A1 (en) * | 2000-04-28 | 2001-11-08 | Siemens Aktiengesellschaft | Meshed track circuit |
-
1923
- 1923-06-23 GB GB1637423A patent/GB218826A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001083281A1 (en) * | 2000-04-28 | 2001-11-08 | Siemens Aktiengesellschaft | Meshed track circuit |
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