Abstract: An auger (16) and a pump unit (18) are mounted on opposite sides of a tower (42). Each is moved up and down the tower by a separate chain and sprocket drive (134, 146, 158, and 136, 148, 160). The assembly (16, 18, 42) is laterally shiftable in position, so that the auger (16) can be used to drill a hole in an ice formation (14). Then, the auger (16) can be withdrawn from the hole (372), and the assembly (16, 18, 42) can be shifted sideways, and then the pump (18) can be lowered into the hole (372). The pump (18) is a helical screw pump (176, 184) combined with a vortex pump (338, 202). A helical screw pump element (184) lifts water up into the vortex pump housing essentially directly to the vortex pump impeller (338). Such impeller (338) discharges the water laterally outwardly through a nozzle (202).

Abstract: A shaft 12 is secured to and is rotatable with a wheel hub of a vehicle. A sprocket wheel 22 is secured to and rotates with the shaft 12 and has evenly spaced apart, tooth-receiving sockets 28 at its periphery. The shaft 12 is mounted on the upper portion of a track supporting frame 42 by a pillow block mount 52 on each side of the sprocket wheel 22. Each mount 52 has housed within it bearing means 54 surrounding the shaft 12. Idler wheels 44 are mounted on the lower portion of the frame 42. An endless track 82 extends about the sprocket wheel 22 and the idler wheels 44. The track 82 has a multiplicity of radially inwardly projecting drive teeth 84 that roll into and out from the sprocket wheel sockets 28 when the vehicle is operated. The drive teeth 84 are of sufficient depth to prevent disengagement of the track 82 from the sprocket wheel 22. The track 82 includes a multiplicity of transverse segments 86 secured together by at least one endless belt 94.

Abstract: Large containers for moving cargo are frequently made of steel in which the side panels are strengthened by making them so as to have elongated alternate lands and grooves. The invention is an apparatus for reforming deformed lands and grooves and removing dents in the panels. It includes a power actuated tool for applying force against the deformed structure and a hydraulic power source connected to the tool. A four-way valve is used to supply pressurized fluid from the source to the tool. A frame connected to the hydraulic power source extends externally of the tool, of a tool holding stand, and of the deformed structure. On each side of the panels the frame has vertical members having protrusions which are adapted to move into spaced grooves formed on the outside of the panels and adjacent the deformation on one side of the container.