GB190426966A - Improvements in Angle-measuring Instruments for Surveying and like purposes. - Google Patents
Improvements in Angle-measuring Instruments for Surveying and like purposes.Info
- Publication number
- GB190426966A GB190426966A GB190426966DA GB190426966A GB 190426966 A GB190426966 A GB 190426966A GB 190426966D A GB190426966D A GB 190426966DA GB 190426966 A GB190426966 A GB 190426966A
- Authority
- GB
- United Kingdom
- Prior art keywords
- scale
- telescope
- angle
- roof
- measuring instruments
- 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
Landscapes
- Telescopes (AREA)
Abstract
26,966. K÷nig, A. Dec. 10. Angle-measuring instruments.-Relates to instruments in which the direction of an object is measured in relation to the direction of a terrestrial force, for example, gravity or the horizontal component of the earth's magnetism. The observing- telescope is held in the hand, while the scale is free to move in the field of the telescope under the influence of the directing force. Fig. 1 shows the application to an azimuth instrument. The transparent cylindrical scale s moves with the compass needle ni in the focal plane F of the telescope. In modifications shown in Figs. 3, 5, and 6, a plane transparent scale is used, the image being erected by the roof-faced prism a, Fig. 3, or the Porro reversing system I, II, III, IV, Figs. 5 and 6. Fig. 2 shows the application to a clinometer, the scale being controlled by the pendulum p. In the modification shown in Fig. 4, a flat scale is used together with Prandl and roof-faced prisms. The radius of the scale is in all cases equal to the focal length of the objective.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190426966T | 1904-12-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190426966A true GB190426966A (en) | 1905-11-02 |
Family
ID=32167584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190426966D Expired GB190426966A (en) | 1904-12-10 | 1904-12-10 | Improvements in Angle-measuring Instruments for Surveying and like purposes. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190426966A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112304315A (en) * | 2020-10-20 | 2021-02-02 | 西安工程大学 | Positioning method for aerial striking unmanned aerial vehicle |
-
1904
- 1904-12-10 GB GB190426966D patent/GB190426966A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112304315A (en) * | 2020-10-20 | 2021-02-02 | 西安工程大学 | Positioning method for aerial striking unmanned aerial vehicle |
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