Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1982-01-21
1984-11-06
Rowland, James L.
Communications: electrical
Condition responsive indicating system
Specific condition
73188, 114144C, 340949, 340984, G08W 100, G08W 102
Patent
active
044815050
ABSTRACT:
An apparent-wind direction indicator for day and night sailing has a hollow conical section with an axial counterbalancing rod extending forward from the apex of the cone. The wind direction indicator is mounted to pivot about a hollow tube extending above the top of a mast. The top of the hollow tube extends within the conical section. An electric lamp is mounted at the top of the hollow tube within the hollow conical section and is illuminated by means of wires through the tube connecting to the ship's power supply. A substantial portion of the underbody of the hollow conical section is made of light-transmitting material so that the light from the electric lamp will be visible from the deck below. The light-transmitting material, as well as the conical section is formed to suggest an arrow to indicate the direction of the wind to the deck below.
REFERENCES:
patent: 1342860 (1920-06-01), Mortimer et al.
patent: 1359406 (1920-11-01), McCarty
patent: 1644547 (1927-10-01), Smith
patent: 1879267 (1932-09-01), Hurni
patent: 2404933 (1946-07-01), Stockstrom
patent: 3049008 (1962-08-01), Polster
patent: 3537310 (1970-11-01), Barrett
patent: 3691829 (1972-09-01), Perry
Gunderson Charles F.
Myer Daniel
Rowland James L.
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