GB191508185A - Means for Detecting the Passage of Ships. - Google Patents
Means for Detecting the Passage of Ships.Info
- Publication number
- GB191508185A GB191508185A GB191508185DA GB191508185A GB 191508185 A GB191508185 A GB 191508185A GB 191508185D A GB191508185D A GB 191508185DA GB 191508185 A GB191508185 A GB 191508185A
- Authority
- GB
- United Kingdom
- Prior art keywords
- float
- circuit
- floats
- contact
- series
- 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
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves
Abstract
8185. Shipman, C. S. June 2. Signals indicating proximity of vessels.-For detecting the passage of a submarine or other vessel, a number of submerged anchored floats, containing contact devices which operate when a float is tilted from its normal vertical position, are connected by a cable 27 to a signal station on shore. Each float contains a balljointed vertical plumb-rod 22 the weighted end of which hangs normally in the middle of a circle of connected contact springs 18, but when the float tilts, one of the springs 18 is moved away from a corresponding contact 16 of an inner series and against a contact 17 of an outer series, thus completing the circuit of a bell A, B, or C indmidual to the float. A relay 37 at the signal station is normally energized by a circuit which passes through the contacts 16, 18 of all the floats in series; but when the cable is cut or any of the floats tilted, the relay de-energizes and closes the circuit of a bell D.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB191508185T | 1915-06-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB191508185A true GB191508185A (en) | 1916-01-13 |
Family
ID=32675031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB191508185D Expired GB191508185A (en) | 1915-06-02 | 1915-06-02 | Means for Detecting the Passage of Ships. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB191508185A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2723390A (en) * | 1951-09-28 | 1955-11-08 | James H Robertson | Float supported signalling device |
-
1915
- 1915-06-02 GB GB191508185D patent/GB191508185A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2723390A (en) * | 1951-09-28 | 1955-11-08 | James H Robertson | Float supported signalling device |
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