GB612388A - Improvements in and relating to direction indicators - Google Patents
Improvements in and relating to direction indicatorsInfo
- Publication number
- GB612388A GB612388A GB15830/46A GB1583046A GB612388A GB 612388 A GB612388 A GB 612388A GB 15830/46 A GB15830/46 A GB 15830/46A GB 1583046 A GB1583046 A GB 1583046A GB 612388 A GB612388 A GB 612388A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pointer
- shaft
- indicating
- hub
- index
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Details Of Measuring And Other Instruments (AREA)
Abstract
612,388. Indicating-apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. May 24, 1946, No. 15830. Convention date, May 25, 1945. [Class 106 (iv)] [Also in Group XX] In a direction indicating instrument, an auxiliary pointer is adjustably mounted on the shaft carrying the main pointer. The shaft 7 rotated by a directional gyro or a compass, carries a pointer 6 indicating compass heading with reference to a fixed dial 4, which may be dished so that its index markings are coplanar with the tip of the pointer 6. The hub 28 of the pointer 6 and a three-armed spring 27 are rigidly mounted in a groove 29 of the shaft 7. The spring 27 forces the hub 25 of a second, course-indicating pointer 23 against a shoulder 26 of the shaft so that the second pointer can rotate therewith. A clutching member 33 has fingers 34 for engagement with openings 35 in the hub 25 when the shaft 30 of the member 33 is pushed inwardly against the force of a return spring 36 by a control knob 37 so that pointer 23 can be set against a fixed index 22 by depressing and rotating the knob 37. The index 22 is stepped out from the dial so as to be coplanar with the tip of the pointer 23.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US612388XA | 1945-05-25 | 1945-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB612388A true GB612388A (en) | 1948-11-11 |
Family
ID=22034525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15830/46A Expired GB612388A (en) | 1945-05-25 | 1946-05-24 | Improvements in and relating to direction indicators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB612388A (en) |
-
1946
- 1946-05-24 GB GB15830/46A patent/GB612388A/en not_active Expired
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