Patent for a new and improved churn power. This design "relates to improvements in churn-powers in which suitable gearing and frame-work operate in conjunction with a vertically-reciprocating dasher; and the objects of [the] improvements are, first, to provide a spring-power and suitable gearing for operating the dasher, with a view to rendering the same in a high degree effective, convenient, and especially adapted to the requirements of service; and second, to afford facilities for the easy winding of the powerful spring required for such service" (lines 8-19)