Abstract: The present invention relates generally to the field of vehicle snow clearing systems and more specifically, to an apparatus for clearing snow and ice from the roof or top surface of a commercial vehicle such as, a tractor trailer. The apparatus includes at least one upright member with a longitudinal axis and a lifting carriage assembly coupled to the at least one upright member for movement along the longitudinal axis thereof. A carriage driving assembly is operatively connected to the lifting carriage assembly and the lifting frame for selectively moving the lifting carriage assembly along the longitudinal axis of the at least one upright member. Also provided is a snow clearing assembly carried by the lifting carriage assembly and positionable on the roof or top surface of the vehicle.

Abstract: An auger device of a snow removal machine in this invention has left and right augers and left and right driving tines mounted on left and right auger shafts, respectively. Each auger has an outer auger blade, an intermediate auger blade and an inner auger blade each mounted at one end on the left or right auger shaft. The outer auger blade and inner auger blade are arranged along a first helical path. The intermediate auger blade is arranged 180° out of phase with the first helical path. The left and right driving tines bite into snow, thereby serving as anchors for preventing lifting of the left and right augers.

Abstract: A cylindrical tank is situated on a bed of a vehicle. A tank opening is provided at a top of the tank. An agitator is provided within the tank. A heating unit such as an oil fired boiler, comprises a burner unit situated on the bed, and fire tube heating elements which longitudinally span an interior surface of the tank. Drain outlets are provided in a bottom of the tank. Discharge tubes run from the drain outlets to discharge outlets beneath the tank. Drain hoses may be connected to the discharge outlets and routed to an appropriate drainage location. A plow blade apparatus is connected to a front of the cab. The plow blade apparatus is generally trough shaped and includes a first Archimedean screw disposed longitudinally therein. An inclined trough has a low end thereof disposed next to the plow blade apparatus. The inclined trough spans from the plow blade apparatus to a high end above the tank. The inclined trough contains a second Archimedean screw disposed longitudinally therein.

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 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: An auger snowblower having outwardly disposed blowers and horizontally mounted dual augers rotating to move snow outwardly to the blower inlets is disclosed. Rotatable discharge chutes powered by hydraulically actuated cylinders is also disclosed. The dual augers and dual blowers are powered by hydraulic motors connected in series with a unitary hydraulic pump.

Abstract: The present invention relates to a ditch forming machine and is specifically concerned with providing such a machine for forming the oppositely sloping sides of a ditch in a single pass. Prior art machines could only form one side of the ditch at a time with the machine then having to be turned 180 degrees to form the opposite side thereof. The present invention overcomes these deficiency by providing a ditch forming machine which provides a pair of offset screw-auger assemblies with earth severed by the leading auger assembly being directed to the trailing auger for discharge of all severed material from the ditch during a single pass. The auger assemblies are conveniently angularly adjustable relative to each other for forming any desired angularity of the opposite sides of the ditch while conveying material discharged from the ditch a substantial distance laterally outwardly from the prime mover vehicle which is adapted to always be position on the flat ground along side the ditch being formed.

Abstract: A snowblower for use particularly with wet and heavy snow formed by a precutting device (8) which rotates about the axis of a blower wheel (4) and is situated in front of the blower wheel in the snow clearing direction. Also included are worm gears (2,3) which rotate about vertical axes and are disposed on both sides in front of the blower wheel (4). The precutting device (8) has radial cutting arms (9) with radii corresponding to the radius of the blower wheel (4). The rotational bodies formed by the precutting device and the worm gears interact with one another without contact.