Self-Folding Blade Dasher Churn: Six Blades to Churn, Reverse and They Fold to Two That Gather

Robert W. Davis let the cream set the dasher and the butter fold it. Robert W. Davis of Rodgersville, Steuben County, New York, received US 10,566, dated 28 February 1854, for "Churns for Making and Working Butter": a dasher of two end pieces B carrying blades a, and divided end pieces C hung loosely on pins "set eccentric to the axis of the dasher," carrying blades b and scroll-curved blades c. Turned one way, the cream's resistance opens it "so as to present six centripetal cutting or agitating blades"; reversed after the butter comes, the butter's resistance closes it "so as to present but two centrifugal gathering blades," which gather the butter, work it into rolls and expel the buttermilk. This rung works out the strokes and the turning moment, then prints the end pieces, sections and blades, builds the round-bottomed churn, and makes and works butter.