Compass having a course directing pointer

Details Compass having a course directing pointer Compass having a course directing pointer

1978-06-05

1980-01-22

Haroian, Harry N.

Geometrical instruments

Indicator of direction of force traversing natural media

With preselected direction indicator

G01C 900

Patent

active

041842677

ABSTRACT:
A compass is provided with a course indicated pointer, rotatable about the same center as the compass card, and frictionally engaging the same. A mechanism, including a finger for catching the pointer, is provided for adjusting the pointer to any selected position, and, while doing so, braking the card so the action of the finger overrules the frictional engagement between the finger and the card.

REFERENCES:
patent: 1332027 (1920-02-01), Bunker
patent: 2855696 (1958-10-01), Griswold

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