SMOOTHING OUT MACHINE Russian patent published in 1995 - IPC

FIELD: civil engineering. SUBSTANCE: smoothing out machine has a drive in the form of rotary pneumatic engine and eccentrically positioned to one another rotor and stator. Rotor has an axial passage. Hollow control handle with start valve is attached to the rotor. Axial rotor passage is communicated with handle cavity. Radial slots are made in the rotor to place spring loaded blades. Stator is installed between upper and lower end covers. Lower end cover has outlet passage communicated with axial passage of the rotor. EFFECT: high efficiency. 2 dwg