Tilting-Tub Counter-Fan Churn: Two Fans Turn Opposite Ways, the Tub Tips to Drain and Work

Brown and Bigelow wanted one churn to make the butter and then work it, by tipping the tub on its side. Lucian A. Brown and Hubbard Bigelow of Hartford, Connecticut, received US 9,311, dated 5 October 1852, assigned to Henry K. W. Welch. Their conical tub E swings on journals between two standards. The crank turns a fan H on the shaft G; a shell with inside gear on G's lower end turns, through a small pinion u, a spur gear t on a hollow shaft round G, which carries a second fan L the opposite way. A conical tube K, of tin or any other suitable material and watertight to the tub's bottom, keeps the cream from the hollow shaft. When the butter has come, the tub is tipped about 90 degrees: the buttermilk runs out at an aperture in the cover and the turning fans knead, work and roll the butter. This rung works out the gear train, then prints the gears, inner fan and conical tube, builds the tub and frame, and makes and works butter.