Geometrical instruments – Indicator of direction of force traversing natural media – Structurally installed including relation to feature thereof
Patent
1974-10-07
1976-09-07
Aegerter, Richard E.
Geometrical instruments
Indicator of direction of force traversing natural media
Structurally installed including relation to feature thereof
24 3R, 24265WS, 33347, 33355R, 33373, G01C 1702, A45F 500
Patent
active
039785912
ABSTRACT:
A compass, in particular one intended to be used for track finding on skis or in track finding races, which is affixed to the user's hand with a strap, and which compass is eminently convenient to use in said circumstances. The invention is particularly characterized in that the strap, one end of which has been affixed to the compass, passes slidably through an aperture in the base plate of the compass, forming an adjustable thumb loop, and that the part of the strap protruding from the aperture has a length enabling the strap to be wound around the wrist, and that the end portion of the strap can be secured in connection with compass or with the strap by buckle or equivalent so that the compass will be positioned upon the upper edge of the hand, adjacent to the thumb groin. The buckle or equivalent may be attached to the thumb loop.
REFERENCES:
patent: 390115 (1888-09-01), Delany
patent: 1258919 (1918-03-01), Lederer
patent: 3209464 (1965-10-01), Glatt
patent: 3484943 (1969-12-01), Yarbrough
Aegerter Richard E.
Scher V. Alexander
Stephan Steven L.
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