Oster
Oster made a two beater one speed mixer with the same motor that has a single blade on each spindle. The are great for whipping but the mixer gets warm if you're running it very long. The grip around the belly is also hard on your hands when mashing potatoes because of the steam. Many of the early machines had plastic that decompressed. Its great to find one in such pristine shape. The design of the blade is supposed to be great for whipping. You'll have to try it out and let us know.