GB205668A - Improvements in surveying instruments - Google Patents
Improvements in surveying instrumentsInfo
- Publication number
- GB205668A GB205668A GB2679122A GB2679122A GB205668A GB 205668 A GB205668 A GB 205668A GB 2679122 A GB2679122 A GB 2679122A GB 2679122 A GB2679122 A GB 2679122A GB 205668 A GB205668 A GB 205668A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bar
- bubble
- centre
- piece
- central hole
- 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
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
205,668. Verschoyle, W. D., and Tallack, H. T. Oct. 4, 1922. Sigh ting-clinometers. - A bar A, having its ends bent at right-angles and provided with a sight opening B and cross-wires C, is pivoted on a centre-piece D carrying a graduated disc E fitted with a bevel G of which the bubble is viewed by reflection from a prism I carried by the bar A and through a central hole in the centre-piece D and the graduations are read by use of a vernier or index carried by the bar A. The level G is enclosed in a casing H formed with a central hole to admit light to the bubble.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2679122A GB205668A (en) | 1922-10-04 | 1922-10-04 | Improvements in surveying instruments |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2679122A GB205668A (en) | 1922-10-04 | 1922-10-04 | Improvements in surveying instruments |
Publications (1)
Publication Number | Publication Date |
---|---|
GB205668A true GB205668A (en) | 1923-10-25 |
Family
ID=10249252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2679122A Expired GB205668A (en) | 1922-10-04 | 1922-10-04 | Improvements in surveying instruments |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB205668A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2157433A (en) * | 1984-03-31 | 1985-10-23 | Ronald Robert Morris | Rotary spirit level |
GB2226405A (en) * | 1988-12-20 | 1990-06-27 | Ronald Morris | A device for indicating angles |
-
1922
- 1922-10-04 GB GB2679122A patent/GB205668A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2157433A (en) * | 1984-03-31 | 1985-10-23 | Ronald Robert Morris | Rotary spirit level |
GB2226405A (en) * | 1988-12-20 | 1990-06-27 | Ronald Morris | A device for indicating angles |
GB2226405B (en) * | 1988-12-20 | 1993-01-13 | Ronald Morris | A device for indicating angles |
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