Magnetic compass
OwnerPaul Chapmaninventor
Life of this patent
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Abstract
A magnetic compass is provided which features a stationary central pointer which extends outwards to the inside of a rim displaying graduated angular indicia, said rim being integral with a pivoting disc which is magnetically coupled. The central pointer assumes the graphic shape of a craft, such as a ship's hull, the stationary disposition of which offers a more intuitive realisation of the directional heading of a vessel with respect to the cardinal axes of a compass.
Claims10
A magnetic compass assembly which includes north seeking magnets coupled to a freely pivoting disc with a vertical rotational axis wherein an outer rim comprising a shallow cylinder extending downwards from the outer periphery of the disc, said cylinder having graduation markings on the inside surface and a rotationally fixed pointer located radially within the cylinder, said pointer being alignable parallel to a longitudinal axis of a craft in which the compass is to be mounted.
Dependencies are inferred from the claim text.