GB1176735A - Improvements in or relating to Gyrocompasses. - Google Patents
Improvements in or relating to Gyrocompasses.Info
- Publication number
- GB1176735A GB1176735A GB1528867A GB1528867A GB1176735A GB 1176735 A GB1176735 A GB 1176735A GB 1528867 A GB1528867 A GB 1528867A GB 1528867 A GB1528867 A GB 1528867A GB 1176735 A GB1176735 A GB 1176735A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- power supply
- contacts
- gyrocompass
- alarm
- 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
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/02—Rotary gyroscopes
- G01C19/34—Rotary gyroscopes for indicating a direction in the horizontal plane, e.g. directional gyroscopes
- G01C19/38—Rotary gyroscopes for indicating a direction in the horizontal plane, e.g. directional gyroscopes with north-seeking action by other than magnetic means, e.g. gyrocompasses using earth's rotation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Gyroscopes (AREA)
Abstract
1,176,735. Control of A.C. motors. TOKYO KEIKI SEIZOSHO CO. Ltd. 4 April, 1967, No. 15288/67. Heading H2J. [Also in Division G1] A starter system for a gyrocompass 1 includes a time switch 4 which enables the gyrocompass to be connected to a power supply 2 to start the gyrocompass at a pre-set time. The 50 c/s. output from the supply 2 is converted to 200-400 c/s. by a rectifier 6 and an inverter 7. In the manual position of the switch 3, when the contact f, is connected to the contact d, a solenoid 51 is energized and its switch 5 connects the power supply to the gyrocompass. For automatic operation, the switch 3 is set so that contacts g and d are connected. At the end of an interval of time, pre-set on the time switch 4, contacts a and c of sets of contacts 41 and 42 are connected. The gyroscompass is therefore connected to the power supply and simultaneously the contacts c and a of a relay 8 are connected. The relay 8 prevents an alarm 11 sounding unless the power supply to the gyroscompass fails in which event the contacts c and b of the relay 8 are connected so that the alarm is connected to a power supply 10 through a changeover switch 9. The second position of the switch 9 switches off the alarm and in this position the alarm will sound again when the power supply is eventually restored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1528867A GB1176735A (en) | 1967-04-04 | 1967-04-04 | Improvements in or relating to Gyrocompasses. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1528867A GB1176735A (en) | 1967-04-04 | 1967-04-04 | Improvements in or relating to Gyrocompasses. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1176735A true GB1176735A (en) | 1970-01-07 |
Family
ID=10056416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1528867A Expired GB1176735A (en) | 1967-04-04 | 1967-04-04 | Improvements in or relating to Gyrocompasses. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1176735A (en) |
-
1967
- 1967-04-04 GB GB1528867A patent/GB1176735A/en not_active Expired
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