Abstract: The invention relates to a device for cutting frozen pieces of meat. According to the invention, provision is made for continuously cutting these pieces of meat in a rotating set of cutters with minimum heat absorption and minimum possible emulsification to achieve a grain size of 2 to 8 mm.

Abstract: A mixing and kneading tool for a motor-driven shaft of a mixing and kneading machine has two blades having a common axis of rotation and located adjacent to one another in an axial direction. The blades are offset relative to one another in a direction of rotation by an angle equal to substantially 180.degree.. The blades together have a shape, as considered in a direction transverse to the axis, which substantially corresponds to the curve of a full period sine function. The blades may be mounted on a sleeve-shaped supporting member which can be fitted over the shaft of the machine. The blades together have a contour resembling a seemingly closed curve, as considered in the axial direction.