Abstract: A container for facilitating solid phase-liquid phase separation has all corrosive resistant materials on the liquid-contacting surfaces. A center wall of polyethylene is provided to increase the surface area available for separation. Support structure for the filter medium includes either a poly grate or a poly cuspated plastic or a combination thereof. Poly connectors and drain lines complete the structure ensuring that the container has high durability and will provide a long, corrosion-free life. A specially formulated highly lubricious material (high molecular weight polyethylene) is utilized for the poly walls to enable rapid clean out of the container.

Abstract: A hoist for elevating cargo onto the bed of a truck includes a frame which may be mounted to the truck bed, a platform or container which is connected to the frame by a pivoting arm, and an arrangement of linkages for rotating the arm to position the platform either on the truck bed or on a loading and unloading position resting on the ground behind the truck. A threaded screw and an arm tube are connected to the arm via the linkages, with the linkages being arranged to increase the effective “flow” of the arm to provide a long travel distance of the arm. Rotational movement is imparted to the screw by electric, pneumatic and hydraulic systems to extend or retract the cantilever arm as desired.