GB191204761A - Improvements in Mariners' Compasses. - Google Patents
Improvements in Mariners' Compasses.Info
- Publication number
- GB191204761A GB191204761A GB191204761DA GB191204761A GB 191204761 A GB191204761 A GB 191204761A GB 191204761D A GB191204761D A GB 191204761DA GB 191204761 A GB191204761 A GB 191204761A
- Authority
- GB
- United Kingdom
- Prior art keywords
- indicator
- compasses
- card
- course
- ring
- 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)
- External Artificial Organs (AREA)
Abstract
4761. Chetwynd, L. W. P. Feb. 26. Mariners' compasses.-Relates to compasses having course-indicators and provided with means, external to the bowl, for holding the card against rotation and rotating the indicator. The pivot g of the float chamber is yieldingly mounted in the socket h, and the lower side of the float chamber is provided with detents j adapted to engage notches k<1> in the edge cf the fixed disk k. The course-indicator d is carried by a ring m so as normally to rotate with the card b, the ring m being formed with notches adapted to be engaged by the arms n<1> when the plunger n is pushed down, while at the same time the detents enter the slots k<1> so that the indicator can be rotated while the card is held stationary. The indicator may be fitted with luminous tubes e, the lubber's point or points f being preferably luminous also.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB191204761T | 1912-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB191204761A true GB191204761A (en) | 1912-12-19 |
Family
ID=32367722
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB191204761D Expired GB191204761A (en) | 1912-02-26 | 1912-02-26 | Improvements in Mariners' Compasses. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB191204761A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4089118A (en) * | 1974-12-24 | 1978-05-16 | Bernard Howard | Course indicator |
US4184267A (en) * | 1977-06-07 | 1980-01-22 | Rustan Lenberg | Compass having a course directing pointer |
US5367781A (en) * | 1993-08-18 | 1994-11-29 | Hsu; Simon | Directional indicator |
-
1912
- 1912-02-26 GB GB191204761D patent/GB191204761A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4089118A (en) * | 1974-12-24 | 1978-05-16 | Bernard Howard | Course indicator |
US4184267A (en) * | 1977-06-07 | 1980-01-22 | Rustan Lenberg | Compass having a course directing pointer |
US5367781A (en) * | 1993-08-18 | 1994-11-29 | Hsu; Simon | Directional indicator |
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