Gate-and-Wing Dasher Churn: A Rising Gate Swings Two Wings Down

King set out to produce "a combination of a variety of motions in the dashers" by which "the labor in the process of churning is lessened." Charles King of Scipio, New York, received US 4,449, dated 4 April 1846, for a churn-dasher in an oblong box with a semicircular bottom. A shaft runs lengthwise at the centre of the bottom's circle. A handle on a cross-piece lifts a vertical gate dasher whose slotted posts embrace the shaft; two oscillating dashers of triangular head-pieces and slats hang on the shaft, their inner ends tied to the gate's top rail, so their outer ends "perform a segmental motion downward" as the gate rises, and back. This rung works out the wings' swing, then prints the head-pieces, gate and ends, bends a stainless bottom, and makes butter.