GB1321025A - Aligning equipment in ships and other structures - Google Patents
Aligning equipment in ships and other structuresInfo
- Publication number
- GB1321025A GB1321025A GB1321025DA GB1321025A GB 1321025 A GB1321025 A GB 1321025A GB 1321025D A GB1321025D A GB 1321025DA GB 1321025 A GB1321025 A GB 1321025A
- Authority
- GB
- United Kingdom
- Prior art keywords
- theodolite
- ship
- inclinometers
- gun
- datum line
- 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
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
1321025 Aligning equipment in ships BRITISH AIRCRAFT CORP Ltd 16 May 1972 [18 May 1971] 15591/71 Heading G1N Two theodolites equipped with electrolytic inclinometers are used to check the axial directions of a piece of equipment relative to a datum line of the body on which the equipment is mounted, e.g. a gun on a ship. Each inclinometer comprises a bubble 14 (Fig.3) in an electrolyte 16 in a curved container 18, forming a differential resistance between end electrodes 20, 22 and central electrode 24. A first theodolite is lined up with a reference datum line on the ship, the second with a datum line on the gun. The levelling screws 44 (Fig.2) of the latter are adjusted so that inclinometers 12 have the same output signal for each 90 degrees rotation of both theodolites. The ship is then tilted to a roll angle of say 3 degrees. The upper part 40 of the first theodolite is rotated about its nominal vertical axis until the inclinometer output is balanced and the theodolite locked. The second theodolite is similarly adjusted and both horizontal displacement scales set to zero. With the ship restored to its normal attitude, subsequent displacements of both telescopes about the vertical axes are accurately measured by the theodolite scales. In another embodiment the inclinometers are mounted on horizontal platforms with their axes parallel in plan and the ship rotated about a vertical axis. The difference between the inclinometer readings is plotted against angular rotation to enable corrections to be applied to the gun direction.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1559171 | 1971-05-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1321025A true GB1321025A (en) | 1973-06-20 |
Family
ID=10061877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1321025D Expired GB1321025A (en) | 1971-05-18 | 1971-05-18 | Aligning equipment in ships and other structures |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2224365A1 (en) |
FR (1) | FR2138088B1 (en) |
GB (1) | GB1321025A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018214335A1 (en) * | 2017-05-24 | 2018-11-29 | 广船国际有限公司 | Quick erection method of vessel segments |
CN113915478A (en) * | 2021-11-01 | 2022-01-11 | 中国航空工业集团公司北京长城计量测试技术研究所 | High-precision vertical moving platform device |
-
1971
- 1971-05-18 GB GB1321025D patent/GB1321025A/en not_active Expired
-
1972
- 1972-05-18 FR FR7217815A patent/FR2138088B1/fr not_active Expired
- 1972-05-18 DE DE19722224365 patent/DE2224365A1/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018214335A1 (en) * | 2017-05-24 | 2018-11-29 | 广船国际有限公司 | Quick erection method of vessel segments |
CN113915478A (en) * | 2021-11-01 | 2022-01-11 | 中国航空工业集团公司北京长城计量测试技术研究所 | High-precision vertical moving platform device |
Also Published As
Publication number | Publication date |
---|---|
DE2224365A1 (en) | 1972-11-30 |
FR2138088B1 (en) | 1973-07-13 |
FR2138088A1 (en) | 1972-12-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1277401C (en) | Method for determining the heading of an aircraft | |
EP0321127A1 (en) | Electronic tilt measuring system | |
EP0294811A3 (en) | High speed well surveying and land navigation | |
GB1321025A (en) | Aligning equipment in ships and other structures | |
US3432856A (en) | Doppler inertial navigation system | |
US3938258A (en) | Vertical reference device | |
US3492735A (en) | Apparatus for orienting a gyroscopically stabilized inertial platform | |
GB1318872A (en) | Stabilized platform | |
US1141099A (en) | Artificial horizon. | |
US2659976A (en) | Slope level | |
US2533217A (en) | Gyrovertical slaving system | |
US2941082A (en) | Photoelectric automatic sextant | |
US3430238A (en) | Apparatus for providing an accurate vertical reference in a doppler-inertial navigation system | |
Hotine | The orthomorphic projection of the spheroid—IV | |
GB2080972A (en) | Apparatus for Determining North Direction | |
Hotine | A primer of non-classical geodesy | |
US3349630A (en) | Drift compensation computer | |
US3310986A (en) | Three axis navigational apparatus | |
US4809007A (en) | Navigation method | |
US2424254A (en) | Device for determining compass errors | |
RU2062985C1 (en) | Gyro horizon compass for mobile object | |
US2300710A (en) | Universal flight indicator | |
RU1838760C (en) | Method of determination of heading correction of two-mode single-gyroscope course indicator | |
GB2036967A (en) | Device for surveying horizontal boreholes | |
US3936947A (en) | Rotating arm aiming device system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |