GB138672A - Improvements in the mariner's compass - Google Patents
Improvements in the mariner's compassInfo
- Publication number
- GB138672A GB138672A GB106319A GB106319A GB138672A GB 138672 A GB138672 A GB 138672A GB 106319 A GB106319 A GB 106319A GB 106319 A GB106319 A GB 106319A GB 138672 A GB138672 A GB 138672A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bowl
- screwed
- ring
- pivot pin
- support
- 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)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
138,672. Whyte, W. D. July 15, 1919. Compasses, magnetic.-In mariners' compasses of the liquid type, provision is made whereby the pivot pin for the card may be withdrawn through the bottom of the bowl, the card then resting on a hollow support. As shown in Fig. 1, the bottom a is of glass and has fitted therein a ring b into which a socket c, securing a cup-like member e, is screwed. Within the bowl, a cross-bar i supports a hollow pivot or support g. The pivot pin j is screwed within the support g, and access to it can be obtained by unscrewing a plug k, which is normally tight on a leather washer f. The ring b is slightly dished, so that when the bowl is inverted and the pivot pin removed, any air bell which may be formed will be located at the ring b, and can be removed by pouring liquid into the cup c. In a modification, Fig. 5, the glass bottom is replaced by a flexible diaphragm l, and the parts b, c, e are replaced by a socket m into which the plug k is screwed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB106319A GB138672A (en) | 1919-07-15 | 1919-07-15 | Improvements in the mariner's compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB106319A GB138672A (en) | 1919-07-15 | 1919-07-15 | Improvements in the mariner's compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB138672A true GB138672A (en) | 1920-02-19 |
Family
ID=9715516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB106319A Expired GB138672A (en) | 1919-07-15 | 1919-07-15 | Improvements in the mariner's compass |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB138672A (en) |
-
1919
- 1919-07-15 GB GB106319A patent/GB138672A/en not_active Expired
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