GB472186A - Improvements in magnetic compasses for ships and aircraft - Google Patents
Improvements in magnetic compasses for ships and aircraftInfo
- Publication number
- GB472186A GB472186A GB1204136A GB1204136A GB472186A GB 472186 A GB472186 A GB 472186A GB 1204136 A GB1204136 A GB 1204136A GB 1204136 A GB1204136 A GB 1204136A GB 472186 A GB472186 A GB 472186A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ring
- index
- carries
- protractor
- bowl
- 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
- G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
472,186. Magnetic compasses. PINCKNEY, V. April 28, 1936, No. 12041. [Class 97 (ii)] Relates to improvements in grid steering compasses. The bowl A carries two rotatable rings B and C. The ring B carries an index D which may be offset relatively 'to the fore- and-aft line G by an amount corresponding to the local variation, a scale E being provided on the ring B to co-operate with an index F on the bowl A. The ring C carries the grid wires K and a protractor scale H to co-operate with the index D. When set to the .desired course, the ring C is clamped to the ring B by a screw L so that when the ring B is moved to adjust the variation setting the ring C is simultaneously given a corresponding adjustment. An additional protractor scale I, in which each graduation is displaced by an amount equal and opposite to the deviation on the corresponding course may be provided. The positions of the index D and protractor scales H, I, may be interchanged. In a modification the grid wires K are placed inside the glass of the compass bowl, and the latter carries the protractor scales H, I, and is rotatable in the ring B which in turn is rotatable in a further ring carrying the gimbal pivots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1204136A GB472186A (en) | 1936-04-28 | 1936-04-28 | Improvements in magnetic compasses for ships and aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1204136A GB472186A (en) | 1936-04-28 | 1936-04-28 | Improvements in magnetic compasses for ships and aircraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB472186A true GB472186A (en) | 1937-09-20 |
Family
ID=9997356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1204136A Expired GB472186A (en) | 1936-04-28 | 1936-04-28 | Improvements in magnetic compasses for ships and aircraft |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB472186A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2293239A (en) * | 1994-09-15 | 1996-03-20 | Fredun Ruston | Correction of errors in a magnetic compass |
-
1936
- 1936-04-28 GB GB1204136A patent/GB472186A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2293239A (en) * | 1994-09-15 | 1996-03-20 | Fredun Ruston | Correction of errors in a magnetic compass |
| US5566462A (en) * | 1994-09-15 | 1996-10-22 | Ruston; Fredun | True magnetic compass |
| AU700431B2 (en) * | 1994-09-15 | 1999-01-07 | Fredun Ruston | True magnetic compass |
| GB2293239B (en) * | 1994-09-15 | 1999-03-10 | Fredun Ruston | True magnetic compass |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US1927992A (en) | Coordinatograph | |
| GB472186A (en) | Improvements in magnetic compasses for ships and aircraft | |
| GB537924A (en) | Improvements in and relating to sun compasses | |
| GB445312A (en) | Improvements in and relating to compasses | |
| GB244593A (en) | Improvements in magnetic compasses | |
| GB494997A (en) | Improvements in nautical course correctors | |
| GB429651A (en) | Improvements in or relating to maps, charts and the like | |
| US2364149A (en) | Vector calculating machine | |
| GB373334A (en) | A combined drawing instrument, which can be used as a ruler, set-squares, protractor, scale, and printing guide | |
| GB435045A (en) | Improvements relating to laying off courses, bearings, angles and the like | |
| GB340360A (en) | Improvements in overlap regulators for sequence picture-makers | |
| GB131687A (en) | Improvements in Appparatus for Use in Steering Aircraft | |
| GB570446A (en) | Improvements in or relating to devices for facilitating the taking of bearings by compasses | |
| GB357925A (en) | Improvements in drawing and like squares | |
| GB519346A (en) | Improvements in indicating means for indicating devices | |
| GB331857A (en) | An improved clinometer for aircraft | |
| GB707427A (en) | Improvements in or relating to micrometers | |
| GB554244A (en) | Improvements in or relating to compensating means for magnetic compasses | |
| GB818613A (en) | Attitude-indicating instrument for aircraft | |
| GB573251A (en) | Improvements in and relating to gyro indicating devices | |
| GB516987A (en) | An indicating instrument for use in aircraft | |
| GB125285A (en) | Clinometer. | |
| GB105300A (en) | Improvements in Clinometers. | |
| GB388178A (en) | Improvements in or relating to magnetic compasses | |
| GB268183A (en) | An improved instrument for determining and plotting bearings and courses on a chart or the like |