Geometrical instruments – Apparel – Laying out
Patent
1989-02-28
1991-03-05
Yasich, Daniel M.
Geometrical instruments
Apparel
Laying out
235 78N, G01C 2120
Patent
active
049967762
ABSTRACT:
The invention provides a method and device for determining the heading with wind (or with current) of an air (or sea-going) vehicle. The device of the invention comprises a support element with two coaxial compass cards, one of which is assigned to the heading without wind and the other serves as indication of the heading with wind, as well as a plurality of rings which may be mounted for rotation coaxially with said compass cards and in the coronal space therebetween. Each of the rings corresponds to a particular situation of the aircraft determined by a wind speed/aircraft speed ratio and has a pointer intended to be oriented along the wind bearing. A series of lines ensures the correspondence between the compass cards.
REFERENCES:
patent: 2019708 (1935-11-01), Jones
patent: 3150824 (1964-09-01), Copenhayer
patent: 3255961 (1966-06-01), Cumberpatch
patent: 3282501 (1966-11-01), Copeland
patent: 3630435 (1971-12-01), Titus
patent: 3812586 (1974-05-01), Itokawa
patent: 3835299 (1974-09-01), Turney
patent: 3844041 (1974-10-01), Wilson, Jr.
patent: 4138817 (1979-02-01), Frost et al.
patent: 4359628 (1982-11-01), Lambert
patent: 4499665 (1985-02-01), Davis
Drucker William A.
Yasich Daniel M.
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