Abstract: An impeller assembly having a housing supporting a rotatable impeller. The housing has a bottom entrance opening and a top exit opening separated by a curved back wall. A liner of low friction and abrasion resistant plastic material located adjacent a portion of the inside of the back wall prevents material buildup on the back wall. The liner is removeably mounted on the housing so that it can be replaced without taking the housing apart. The impeller has a plurality of pivoted paddle assemblies. Each paddle assembly has a body carrying a generally U-shaped liner of low friction and abrasion resistant material to minimize the collection of material on the paddle assemblies. The housing includes a knife adjacent the entrance opening. The body of the impeller assembly has a transverse lip that moves in close relation relative to the knife to cut material.

Abstract: An impeller assembly having a housing supporting a rotatable impeller. The housing has a bottom entrance opening and a top exit opening separated by a curved back wall. A liner of low friction and abrasive resistant plastic material covers the inside of the back wall. The liner is removeably mounted on the housing so that it can be replaced without taking the housing apart. The impeller has a plurality of pivoted paddle assemblies. Each paddle assembly has a generally U-shaped liner of low friction and abrasion resistant material. The impeller is adjustably mounted on the housing to provide a minimum of clearance between the liner and the outer ends of the paddle assemblies as they rotate within the housing.

Abstract: An impeller assembly having a housing supporting a rotatable impeller. The housing has a bottom entrance opening and a top exit opening separated by a curved back wall. A liner of low friction and abrasive resistant plastic material covers the inside of the back wall. The liner is removeably mounted on the housing so that it can be replaced without taking the housing apart. The impeller has a plurality of pivoted paddle assemblies. Each paddle assembly has a generally U-shaped liner of low friction and abrasion resistant material. The impeller is adjustably mounted on the housing to provide a minimum of clearance between the liner and the outer ends of the paddle assemblies as they rotate within the housing.

Abstract: A particulate material mixer has a rotatable drum with an inclined longitudinal axis. A conveyor having an open top trough and auger is located longitudinally in the drum and operates to move mixed material from the drum chamber into a hopper or alternatively back into the chamber. A drive transmission simultaneously rotates the drum and operates the conveyor. A flexible circular seal interposed between an annular end wall and a circular wall of the drum prevents material from spilling out of the drum. The conveyor trough is mounted for angular movement to regulate the volume of material discharged from the mixer. A manually operated liner actuator allows the operator to select the angular position of the trough. The hopper has a discharge door and chute to direct mixed material away from the mixer to a desired location.

Abstract: A silo unloader has an auger collector for moving material to an impeller operable to discharge material from a tower silo. A sprocket and endless chain secured to a transition assembly mounted on the impeller drives the collector around the silo wall. Wheels on the outer end of the collector and wheels on a biased arm on the inner end of the frame stabilize the unloader in the silo. A stop pivotally connected to the collector limits its backward movement by lifting the collector from the material.