Dynamatic Ajusto-spede drive, rated 15 HP at 1700 RPM, installed as a center rewind on a Kidder Press at Marathon Paper Company, Menasha, Wisconsin.
Anthony and Martin Winther founded the Dynamatic Corporation in 1931 in order to produce air conditioning units, and later, automobile parts, clutches, brakes, and industrial controls in Kenosha, Wisconsin until 2000.