Charged by the Wind

Wind-powered battery chargers provided cheap energy before rural electricity

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During World War II, Wincharger produced a wind machine used in paratrooper training. Note the Wincharger logo on the unit. Other wartime production by the company included development of the Dynamotor, for use in military aircraft and on ships. After the war, the Dynamotor became the basis for the two-bearing generator still used in pressure washers and other applications.
Courtesy Edward Howard and www.Wincharger.com