Roller-and-Float Gathering Churn: Floats That Fold Onto Rollers to Press the Butter

Dutcher wanted the whole process — churning, gathering and working the butter — done "without removing it from the churn." Davis Dutcher of Springfield, New York, received US 8,143, dated 10 June 1851 (antedated 15 February 1851), for a churn with a curved-bottom box and a dasher whose stationary arms carry eight-sided rollers, braced by angular strips, and whose swinging arms carry floats. Churning, the floats stand out against shoulders; reversed, "the floats will fall back, by the resistance of the cream, upon the rollers, presenting a curved surface for directing the particles of butter toward the rollers," which press and roll it against the churn's sides. This rung works out the pressing gap, then prints the arms, rollers and floats, assembles the dasher in a box, and makes and works butter.