GB2344887B - Surveying navigation and astronomy instrument - Google Patents

Surveying navigation and astronomy instrument

Info

Publication number
GB2344887B
GB2344887B GB9827473A GB9827473A GB2344887B GB 2344887 B GB2344887 B GB 2344887B GB 9827473 A GB9827473 A GB 9827473A GB 9827473 A GB9827473 A GB 9827473A GB 2344887 B GB2344887 B GB 2344887B
Authority
GB
United Kingdom
Prior art keywords
surveying
navigation
astronomy
instrument
astronomy 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 - Fee Related
Application number
GB9827473A
Other versions
GB2344887A (en
GB2344887A9 (en
GB9827473D0 (en
Inventor
Crichton Edward Mcgrego Miller
Chris J Tillbrook
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9827473A priority Critical patent/GB2344887B/en
Publication of GB9827473D0 publication Critical patent/GB9827473D0/en
Priority to GB9929088A priority patent/GB2344654B/en
Publication of GB2344887A publication Critical patent/GB2344887A/en
Publication of GB2344887A9 publication Critical patent/GB2344887A9/en
Application granted granted Critical
Publication of GB2344887B publication Critical patent/GB2344887B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G01C9/12—Measuring inclination, e.g. by clinometers, by levels by using a single pendulum plumb lines G01C15/10
    • 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
    • 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
    • G01C9/02—Details
    • G01C9/06—Electric or photoelectric indication or reading means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Automation & Control Theory (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
GB9827473A 1998-12-10 1998-12-10 Surveying navigation and astronomy instrument Expired - Fee Related GB2344887B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9827473A GB2344887B (en) 1998-12-10 1998-12-10 Surveying navigation and astronomy instrument
GB9929088A GB2344654B (en) 1998-12-10 1999-12-08 Survey and navigation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9827473A GB2344887B (en) 1998-12-10 1998-12-10 Surveying navigation and astronomy instrument

Publications (4)

Publication Number Publication Date
GB9827473D0 GB9827473D0 (en) 1999-02-10
GB2344887A GB2344887A (en) 2000-06-21
GB2344887A9 GB2344887A9 (en) 2000-07-07
GB2344887B true GB2344887B (en) 2000-11-01

Family

ID=10844173

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9827473A Expired - Fee Related GB2344887B (en) 1998-12-10 1998-12-10 Surveying navigation and astronomy instrument
GB9929088A Expired - Fee Related GB2344654B (en) 1998-12-10 1999-12-08 Survey and navigation device

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9929088A Expired - Fee Related GB2344654B (en) 1998-12-10 1999-12-08 Survey and navigation device

Country Status (1)

Country Link
GB (2) GB2344887B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100523725C (en) * 2006-03-10 2009-08-05 中国海洋大学 Anchor horizontal oblique angle measuring device and using method thereof
CN101398302B (en) * 2007-09-26 2011-03-23 力帆实业(集团)股份有限公司 Front inclination angle measurement mechanism for motorcycle
DE102008010844B4 (en) * 2008-02-25 2017-11-02 Mohamed El-Habib Rahal Crescent-tracking device
CN103196427A (en) * 2013-02-26 2013-07-10 罗斌 Semicircular built-in counterweight type slope gauge applicable to heading face in pit
CN103884320A (en) * 2014-03-10 2014-06-25 中国华冶科工集团有限公司 Detection method of structure perpendicularity
CN104949654A (en) * 2014-03-31 2015-09-30 雷万军 No-water-gauge type level gauge
CN108036770A (en) * 2017-12-11 2018-05-15 合肥霞康电子商务有限公司 A kind of high accuracy road gradient detection trolley
CN109470212A (en) * 2018-11-22 2019-03-15 国网天津市电力公司电力科学研究院 A kind of Lightning-Rod Protection Disign In Substations shaft tower gradient detecting instrument and its application method
CN111809894A (en) * 2020-04-30 2020-10-23 中冶(上海)钢结构科技有限公司 Self-calibration net rack suitable for uneven terrain and construction method thereof
CN113251995B (en) * 2021-05-18 2023-03-21 中国科学院云南天文台 Method for obtaining all-weather astronomical longitude and latitude indirect measurement value
CN113819888B (en) * 2021-11-22 2022-03-08 郯城县水务集团有限公司 Open-air building gradient measuring device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB556379A (en) * 1942-09-09 1943-10-01 Reginald Victor Edwards Improvements in or relating to builder's levels
GB722828A (en) * 1952-02-07 1955-02-02 Frederick Bowes D Enis Improvements in or relating to clinometers
GB1411598A (en) * 1972-12-12 1975-10-29 Dunn G R Navigation instrument
WO1981002783A1 (en) * 1980-03-26 1981-10-01 I Johnsson Device for setting inclination
US4586263A (en) * 1985-03-15 1986-05-06 Brattain Charles E Pendulum level
GB2292220A (en) * 1994-08-11 1996-02-14 Dennis George Yeo Levelling aid
GB2298275A (en) * 1995-02-24 1996-08-28 Grohe Armaturen Friedrich Level indicator for articles on a wall
GB2317012A (en) * 1996-09-10 1998-03-11 Mark Paul Footitt Apparatus for use on construction sites

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1258518A (en) * 1969-02-28 1971-12-30
US3828436A (en) * 1972-12-24 1974-08-13 C King Swinging t-square
GB2143639A (en) * 1983-07-20 1985-02-13 John Derek Stafford Townshend Perspective clinometer
US4914823A (en) * 1987-06-11 1990-04-10 Harris Kenneth W Float biased level apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB556379A (en) * 1942-09-09 1943-10-01 Reginald Victor Edwards Improvements in or relating to builder's levels
GB722828A (en) * 1952-02-07 1955-02-02 Frederick Bowes D Enis Improvements in or relating to clinometers
GB1411598A (en) * 1972-12-12 1975-10-29 Dunn G R Navigation instrument
WO1981002783A1 (en) * 1980-03-26 1981-10-01 I Johnsson Device for setting inclination
US4586263A (en) * 1985-03-15 1986-05-06 Brattain Charles E Pendulum level
GB2292220A (en) * 1994-08-11 1996-02-14 Dennis George Yeo Levelling aid
GB2298275A (en) * 1995-02-24 1996-08-28 Grohe Armaturen Friedrich Level indicator for articles on a wall
GB2317012A (en) * 1996-09-10 1998-03-11 Mark Paul Footitt Apparatus for use on construction sites

Also Published As

Publication number Publication date
GB2344887A (en) 2000-06-21
GB2344887A9 (en) 2000-07-07
GB9827473D0 (en) 1999-02-10
GB9929088D0 (en) 2000-02-02
GB2344654A (en) 2000-06-14
GB2344654B (en) 2002-12-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20091210