GB2199927B - Direction indicating apparatus - Google Patents

Direction indicating apparatus

Info

Publication number
GB2199927B
GB2199927B GB08314811A GB8314811A GB2199927B GB 2199927 B GB2199927 B GB 2199927B GB 08314811 A GB08314811 A GB 08314811A GB 8314811 A GB8314811 A GB 8314811A GB 2199927 B GB2199927 B GB 2199927B
Authority
GB
United Kingdom
Prior art keywords
direction indicating
indicating apparatus
indicating
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
Application number
GB08314811A
Other versions
GB2199927A (en
Inventor
Frederick John James
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.)
ML Aviation Ltd
Original Assignee
ML Aviation Ltd
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 ML Aviation Ltd filed Critical ML Aviation Ltd
Publication of GB2199927A publication Critical patent/GB2199927A/en
Application granted granted Critical
Publication of GB2199927B publication Critical patent/GB2199927B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/10—Aiming or laying means with means for compensating for canting of the trunnions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/02—Magnetic compasses
    • G01C17/28—Electromagnetic compasses
    • G01C17/30—Earth-inductor compasses

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
GB08314811A 1982-06-07 1983-06-01 Direction indicating apparatus Expired GB2199927B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8216508 1982-06-07

Publications (2)

Publication Number Publication Date
GB2199927A GB2199927A (en) 1988-07-20
GB2199927B true GB2199927B (en) 1988-11-30

Family

ID=10530875

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08314811A Expired GB2199927B (en) 1982-06-07 1983-06-01 Direction indicating apparatus

Country Status (1)

Country Link
GB (1) GB2199927B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005017320A1 (en) * 2004-04-17 2005-11-10 Vectronix Ag A method of estimating the accuracy of azimuth orientations and portable targeting apparatus

Also Published As

Publication number Publication date
GB2199927A (en) 1988-07-20

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Legal Events

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