Measuring and testing – Navigation – Leeway incidence or side-slip
Patent
1974-01-21
1976-10-19
Gill, James J.
Measuring and testing
Navigation
Leeway incidence or side-slip
G01W 104
Patent
active
039863964
ABSTRACT:
In a first preferred embodiment my wind indicator is formed of a fan rotor attached to a verticalshaft rotatably mounted in a C-shaped frame. Also mounted on the shaft is a pair of pendulums which are pivoted to swing outwardly by centrifugal force as the shaft is rotated. When wind strikes the fan rotor it rotates and the faster the shaft rotates, the further outward the pendulums move. A scale is provided on the C-shaped frame adjacent the path of outward movement of the pendulums from which the wind velocity can be visually determined. In a second embodiment the fan rotor, shaft and pendulums are mounted in a frame of three vertically disposed C-shaped members disposed at 120.degree. spacing. The frame is in turn rotatably mounted in a base. A horizontally disposed direction indicator is mounted on the frame, and carries an octagonal direction dial with numerals on each side. The wind velocity scale and direction dial numbers are of sufficient size to be read from a substantial distance. In a third embodiment the wind indicator frame is formed of a pair of quarter circle members assembled in divergent relationship to describe a weather vane, and the shaft is fixed in a base and the frame rotates on the shaft. The fan rotor also rotates on the shaft and carries the pendulums.
REFERENCES:
patent: 1548353 (1925-08-01), Day
patent: 1982304 (1934-11-01), Holden
patent: 2608859 (1952-09-01), Sontag et al.
patent: 2623388 (1952-12-01), Wood et al.
patent: 2749750 (1956-06-01), Hastings
patent: 2935872 (1960-05-01), Misner
Ciarlante Anthony V.
Gill James J.
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