GB191011750A - Improvements in Sighting Compasses and like Instruments. - Google Patents
Improvements in Sighting Compasses and like Instruments.Info
- Publication number
- GB191011750A GB191011750A GB191011750DA GB191011750A GB 191011750 A GB191011750 A GB 191011750A GB 191011750D A GB191011750D A GB 191011750DA GB 191011750 A GB191011750 A GB 191011750A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compasses
- sighting
- instruments
- clinometers
- sight
- 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
- G01C17/02—Magnetic compasses
- G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
- G01C17/10—Comparing observed direction with north indication
- G01C17/12—Comparing observed direction with north indication by sighting means, e.g. for surveyors' compasses
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Aerials With Secondary Devices (AREA)
- Telescopes (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
11,750. Beames, F. May 12. Prismatic compasses; sighting-clinometers.-A device for attachment to compasses, clinometers, and like instruments for sighting and reading angles, of the type provided with a hinged sight g, and a hinged reflector d, has toes a' upon the frame a to engage with the case of the compass or the like, and a sight-line e inscribed on the mirror d in which the scale is reflected.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB191011750T | 1910-05-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB191011750A true GB191011750A (en) | 1911-05-04 |
Family
ID=32561874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB191011750D Expired GB191011750A (en) | 1910-05-12 | 1910-05-12 | Improvements in Sighting Compasses and like Instruments. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB191011750A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2953060A (en) * | 1957-02-15 | 1960-09-20 | Ilon Ind Inc | Position finding device |
-
1910
- 1910-05-12 GB GB191011750D patent/GB191011750A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2953060A (en) * | 1957-02-15 | 1960-09-20 | Ilon Ind Inc | Position finding device |
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