GB589901A - An instrument or device for use in navigational or survey work or instruction - Google Patents
An instrument or device for use in navigational or survey work or instructionInfo
- Publication number
- GB589901A GB589901A GB8159/45A GB815945A GB589901A GB 589901 A GB589901 A GB 589901A GB 8159/45 A GB8159/45 A GB 8159/45A GB 815945 A GB815945 A GB 815945A GB 589901 A GB589901 A GB 589901A
- Authority
- GB
- United Kingdom
- Prior art keywords
- base
- sighting
- pointer
- angles
- instrument
- 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
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/02—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by astronomical means
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Astronomy & Astrophysics (AREA)
- Automation & Control Theory (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
589,901. Sighting clinometers. INGLIS, J. N. April 2, 1945, No'. 8159. Convention date, April 15, 1944. [Class 97 (ii)] A sighting instrument for measuring altitudes of celestial bodies, angles of depression and elevation of terrestrial objects. and for other like purposes comprising a vertical member 1 carrying a scale 6 and sighting means 4 and rotatably mounted on a horizontal axis 2a from which depends a pointer 3 which is free to swing under gravity and co-operates with the scale 6. The sighting means 4 consists of apertures in two diametrically opposite lugs 4, 5 fixed to the turnable member. The support 2 of the turnable member 1 is mounted on a turn-table 7 which is provided with scales of horizontal angles indicated by a pointer 12 on the base. A pointer 16 on the turn-table co-operates with scales on the base indicating local apparent time, magnetic deviation or azimuth angles. A magnetic needle 17, spirit level, and means 20 to adjust the base angle may be provided on the base.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IE589901X | 1944-04-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB589901A true GB589901A (en) | 1947-07-02 |
Family
ID=11042337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8159/45A Expired GB589901A (en) | 1944-04-15 | 1945-04-02 | An instrument or device for use in navigational or survey work or instruction |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB589901A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2122348A (en) * | 1982-06-21 | 1984-01-11 | Ronald Morris | Teaching aid |
GB2124375A (en) * | 1982-07-19 | 1984-02-15 | Stolle Corp | Antenna alignment gage |
GB2211609A (en) * | 1987-10-27 | 1989-07-05 | Argosy Electronics Limited | Alignment device |
-
1945
- 1945-04-02 GB GB8159/45A patent/GB589901A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2122348A (en) * | 1982-06-21 | 1984-01-11 | Ronald Morris | Teaching aid |
GB2124375A (en) * | 1982-07-19 | 1984-02-15 | Stolle Corp | Antenna alignment gage |
GB2211609A (en) * | 1987-10-27 | 1989-07-05 | Argosy Electronics Limited | Alignment device |
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