Abstract: A system for decomposing materials includes a main container and a drum container housed within the main container. The drum container includes a central longitudinal axis about which the drum container rotates. The drum container also includes at least one partition extending transverse to the central longitudinal axis of the drum container dividing the drum container into a first compartment and a second compartment. The partition includes a central aperture in alignment with the central longitudinal axis allowing for the passage of decomposing material between the first compartment and the second compartment as decomposing material rises to a level exceeding the distance from an outer wall of the drum container thereof to a circumferential edge of the central aperture. A venting pipe radially extends within the drum container.

Abstract: An automatic shut off device for preventing air from entering the fuel system of an internal combustion engine when the fuel supply becomes low. The device provides a fuel chamber having an inlet connected to a fuel supply line, a float switch and an outlet connected to the engine fuel pump or fuel system. When the fuel supply falls below a preselected low level, but before the level reaches a lower inlet to a standpipe, the float switch is actuated to shut down the engine before air can enter the engine fuel system, thereby eliminating the necessity of bleeding the fuel system when the fuel supply is restored. A bleed orifice at the top of the fuel chamber allows trapped air to escape and return to the fuel tank when fuel is restored to the device.