Device for preventing error in a compass

Details Device for preventing error in a compass Device for preventing error in a compass

1984-09-05

1986-02-25

Haroian, Harry N.

Geometrical instruments

Indicator of direction of force traversing natural media

Magnetic field responsive

33349, G01C 900, G01C 1702

Patent

active

045718431

ABSTRACT:
A device for preventing error or misreading in a marine compass fastened to a sloping plane, the compass being provided with a pendulum (9) mounted for limited pivoting movement inside its spherical casing (1), the pendulum having rotatably and pivotably mounted on it a compass disk (16) with a scale (18), which is intended to be read against a co-called steering line (12) on the pendulum (9) at an angle of 0.degree. to about 45.degree. relative the horizontal plane. The pendulum is pivotably mounted in a cradle (5) pivotably mounted inside the compass casing (1) for movement relative the casing in two planes substantially at right angles to each other so that its steering line (12) and the mounting point (c) of the compass disk (16) are continuously maintained by the action of gravity in the same vertical plane relative the fore-and-aft line of the boat independent of heeling of the boat.

REFERENCES:
patent: 163838 (1975-06-01), Baker
patent: 1023858 (1912-04-01), Laures
patent: 1270178 (1918-06-01), Lehtinen
Silva Sweden AB, "Silva Marine Modern Navigation Instruments for all Types of Boats", p. 3.
Silva Sweden AB, "Silva Marine Compasses", p. 4.

Affiliated with

Also associated with

Rating

Device for preventing error in a compass does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for preventing error in a compass, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for preventing error in a compass will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1005043