SE8304852L - Anordning for att forhindra felvisning av en kompass - Google Patents

Anordning for att forhindra felvisning av en kompass

Info

Publication number
SE8304852L
SE8304852L SE8304852A SE8304852A SE8304852L SE 8304852 L SE8304852 L SE 8304852L SE 8304852 A SE8304852 A SE 8304852A SE 8304852 A SE8304852 A SE 8304852A SE 8304852 L SE8304852 L SE 8304852L
Authority
SE
Sweden
Prior art keywords
compass
pendulum
casing
pivotably mounted
relative
Prior art date
Application number
SE8304852A
Other languages
Unknown language ( )
English (en)
Other versions
SE438553B (sv
SE8304852D0 (sv
Inventor
C G Lindskog
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
Priority to SE8304852A priority Critical patent/SE438553B/sv
Publication of SE8304852D0 publication Critical patent/SE8304852D0/sv
Priority to FI843430A priority patent/FI843430A/fi
Priority to US06/647,421 priority patent/US4571843A/en
Priority to FR8413783A priority patent/FR2551862B1/fr
Publication of SE8304852L publication Critical patent/SE8304852L/sv
Publication of SE438553B publication Critical patent/SE438553B/sv

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
    • G01C17/10—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)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
SE8304852A 1983-09-09 1983-09-09 Anordning for att forhindra felvisning av en kompass SE438553B (sv)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE8304852A SE438553B (sv) 1983-09-09 1983-09-09 Anordning for att forhindra felvisning av en kompass
FI843430A FI843430A (fi) 1983-09-09 1984-08-31 Anordning foer att foerhindra felvisning av en kompass.
US06/647,421 US4571843A (en) 1983-09-09 1984-09-05 Device for preventing error in a compass
FR8413783A FR2551862B1 (fr) 1983-09-09 1984-09-07 Dispositif pour empecher une erreur dans un compas de marine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8304852A SE438553B (sv) 1983-09-09 1983-09-09 Anordning for att forhindra felvisning av en kompass

Publications (3)

Publication Number Publication Date
SE8304852D0 SE8304852D0 (sv) 1983-09-09
SE8304852L true SE8304852L (sv) 1985-03-10
SE438553B SE438553B (sv) 1985-04-22

Family

ID=20352437

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8304852A SE438553B (sv) 1983-09-09 1983-09-09 Anordning for att forhindra felvisning av en kompass

Country Status (4)

Country Link
US (1) US4571843A (sv)
FI (1) FI843430A (sv)
FR (1) FR2551862B1 (sv)
SE (1) SE438553B (sv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4930224A (en) * 1987-06-08 1990-06-05 Rule Industries, Inc. Magnetic compass
ZA881192B (en) * 1988-02-25 1988-08-16 Lee Chiu-Shan Multiangular vertical and horizontal 3-dimension homo-step surveying instrument
AU2004243834B2 (en) * 2003-05-23 2010-06-17 Rule Industries, Inc. Self-balancing, no-spin magnet compass
US9303991B2 (en) * 2013-09-27 2016-04-05 Apple Inc. Electronic device with calibrated compass

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US163838A (en) * 1875-06-01 Improvement in mariners compasses
US1023858A (en) * 1910-05-19 1912-04-23 Clement Boniface Basile Laures Spherical goniometer.
US1270178A (en) * 1916-11-20 1918-06-18 George E Lehtinen Aeronautical compass.
GB147305A (en) * 1919-04-22 1920-07-22 Christopher Hesketh Hamilton An improved inclinometer for use on aircraft or other bodies
SE420127B (sv) * 1980-06-26 1981-09-14 Instrument Verken Ab Anordning vid kompasser

Also Published As

Publication number Publication date
FR2551862A1 (fr) 1985-03-15
SE438553B (sv) 1985-04-22
SE8304852D0 (sv) 1983-09-09
FR2551862B1 (fr) 1988-08-05
US4571843A (en) 1986-02-25
FI843430A (fi) 1985-03-10
FI843430A0 (fi) 1984-08-31

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