Single pivot remote reading compass

Details Single pivot remote reading compass Single pivot remote reading compass

1975-06-17

1977-06-07

Martin, Jr., William D.

Geometrical instruments

Indicator of direction of force traversing natural media

Magnetic field responsive

33364, G01C 1726

Patent

active

040273989

ABSTRACT:
A remote reading magnetic compass in which a coded compass disc is supported for rotation by a single upper pivot bearing which maintains the disc and associated compass magnet submerged in a damping liquid with positive buoyancy and which provides a selected range of tilt without gimbal mounting.

REFERENCES:
patent: 111169 (1871-01-01), Bliss
patent: 3374549 (1968-03-01), Hanson
patent: 3746842 (1973-07-01), Fowler
patent: 3833901 (1974-09-01), Fowler
patent: 3888016 (1975-06-01), Fowler

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