Dial Wind Indicators

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  • 1 Dugway Proving Ground, Tooele, Utah
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Electric clock powered, relay controlled indicators of wind speed and direction; designed to operate at a predetermined time or interval, and to retain the record of conditions at that time for a definite period, are here described.

* Published by permission of the Chief, Chemical Warfare Service, U. S. A.

Electric clock powered, relay controlled indicators of wind speed and direction; designed to operate at a predetermined time or interval, and to retain the record of conditions at that time for a definite period, are here described.

* Published by permission of the Chief, Chemical Warfare Service, U. S. A.

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