FI71196C - Anordning vid kompasser - Google Patents

Anordning vid kompasser Download PDF

Info

Publication number
FI71196C
FI71196C FI811779A FI811779A FI71196C FI 71196 C FI71196 C FI 71196C FI 811779 A FI811779 A FI 811779A FI 811779 A FI811779 A FI 811779A FI 71196 C FI71196 C FI 71196C
Authority
FI
Finland
Prior art keywords
rose
compass
scale
compass rose
marked
Prior art date
Application number
FI811779A
Other languages
English (en)
Finnish (fi)
Other versions
FI71196B (fi
FI811779L (fi
Inventor
Holger Meiling
Original Assignee
Instrument Verken Ab
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 Instrument Verken Ab filed Critical Instrument Verken Ab
Publication of FI811779L publication Critical patent/FI811779L/fi
Publication of FI71196B publication Critical patent/FI71196B/fi
Application granted granted Critical
Publication of FI71196C publication Critical patent/FI71196C/fi

Links

Classifications

    • 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
    • G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
    • G01C17/20—Observing the compass card or needle
    • 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
    • G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
    • G01C17/10—Comparing observed direction with north indication
    • G01C17/14—Comparing observed direction with north indication by reference marks, e.g. for ships' compasses

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Lenses (AREA)
FI811779A 1980-06-26 1981-06-09 Anordning vid kompasser FI71196C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8004749A SE420127B (sv) 1980-06-26 1980-06-26 Anordning vid kompasser
SE8004749 1980-06-26

Publications (3)

Publication Number Publication Date
FI811779L FI811779L (fi) 1981-12-27
FI71196B FI71196B (fi) 1986-08-14
FI71196C true FI71196C (fi) 1986-11-24

Family

ID=20341304

Family Applications (1)

Application Number Title Priority Date Filing Date
FI811779A FI71196C (fi) 1980-06-26 1981-06-09 Anordning vid kompasser

Country Status (3)

Country Link
FI (1) FI71196C (OSRAM)
FR (1) FR2485721A1 (OSRAM)
SE (1) SE420127B (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE438553B (sv) * 1983-09-09 1985-04-22 Instrument Verken Ab Anordning for att forhindra felvisning av en kompass

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB551165A (en) * 1941-08-06 1943-02-10 Harold Clifford Prins Improved navigational instrument
GB1095966A (en) * 1965-11-04 1967-12-20 Eastern Co Magnetic compass

Also Published As

Publication number Publication date
FI71196B (fi) 1986-08-14
FR2485721A1 (fr) 1981-12-31
SE420127B (sv) 1981-09-14
FI811779L (fi) 1981-12-27
FR2485721B1 (OSRAM) 1984-05-11

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Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: INSTRUMENTVERKEN AB