ES352945A3 - Railroad travel circuit apparatus to detect the presence of a train in a position given. (Machine-translation by Google Translate, not legally binding) - Google Patents
Railroad travel circuit apparatus to detect the presence of a train in a position given. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES352945A3 ES352945A3 ES352945A ES352945A ES352945A3 ES 352945 A3 ES352945 A3 ES 352945A3 ES 352945 A ES352945 A ES 352945A ES 352945 A ES352945 A ES 352945A ES 352945 A3 ES352945 A3 ES 352945A3
- Authority
- ES
- Spain
- Prior art keywords
- regulation
- signal
- train
- point
- receiver means
- 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
- 230000033228 biological regulation Effects 0.000 abstract 9
- 230000004913 activation Effects 0.000 abstract 1
- 238000013459 approach Methods 0.000 abstract 1
- 230000005284 excitation Effects 0.000 abstract 1
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
Abstract
A railway track circuit apparatus for detecting the presence of a train at a given position of a two-way railroad, comprising: excitation means for applying a constant alternating current signal through the rails of said railroad at said point ; first receiver means connected through said lanes at said point, which respond to changes in the voltage amplitude of said alternating current signal to generate a first regulation signal; an island relay connected to said first receiver means and adapted to be activated by the decrease of said first regulation signal; second receiver means connected through said lanes at a location separated from said point, and responding to changes in the voltage amplitude of said alternating current signal to generate a second regulation signal; a first regulation relay connected to said second receiver means and adapted to be activated by the decrease of said second regulation signal; third receiver means connected through said lanes, in a location separated from said point in a direction along said lanes opposite the location of said connection of the second receiver and responding to changes in the voltage amplitude of said signal of alternating current to generate a third regulation signal; a second regulation relay connected to said third receiver means and adapted to be activated by the decrease of said third regulation signal; and means responsive to the activation of said first and second regulation relays and said island relay, to indicate the direction in which the train approaches and the presence of said train, at said point. (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES352945A ES352945A3 (en) | 1968-04-20 | 1968-04-20 | Railroad travel circuit apparatus to detect the presence of a train in a position given. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES352945A ES352945A3 (en) | 1968-04-20 | 1968-04-20 | Railroad travel circuit apparatus to detect the presence of a train in a position given. (Machine-translation by Google Translate, not legally binding) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES352945A3 true ES352945A3 (en) | 1969-09-01 |
Family
ID=8448696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES352945A Expired ES352945A3 (en) | 1968-04-20 | 1968-04-20 | Railroad travel circuit apparatus to detect the presence of a train in a position given. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES352945A3 (en) |
-
1968
- 1968-04-20 ES ES352945A patent/ES352945A3/en not_active Expired
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