Abstract: A disc filter sector comprising a trapezium tubular support frame, and a trapezium screen frame supporting a screen doth, the trapezium filter medium dement being connected to the trapezium tubular support structure. More particularly, there is a pair of such filter sectors, and the sectors are connected together by an overlying cap.

Abstract: A disc filter sector comprising a trapezium tubular support frame, and a trapezium screen frame supporting a screen cloth, the trapezium filter medium element being connected to the trapezium tubular support structure. More particularly, there is a pair of such filter sectors, and the sectors are connected together by an overlying cap.

Abstract: A disc filter sector comprising a trapezium tubular support frame, and a trapezium screen frame supporting a screen cloth, the trapezium filter medium dement being connected to the trapezium tubular support structure. More particularly, there is a pair of such filter sectors, and the sectors are connected together by an overlying cap.

Abstract: A ramp for loading containers on or loading containers from an elevated surface provides a collection space for containing spillage on the ramp. The ramp is wedge-shaped and has an upper inclined load carrying wall and a bottom wall joining the load carrying wall at one end thereof. Sidewalls and an end wall join the load carrying and bottom walls to define an internal containment chamber. At least one drain opening is provided in the load carrying wall for collecting and for directing any spillage on an upper surface of the load carrying wall to the internal containment chamber.

Abstract: A molded plastic drum storage and/or transportation device has an inner wall conforming to a drum to be carried or stored. An outer wall is spaced from the inner wall to create a containment space therebetween. One end of the cart has a recess for collecting spills or overflow from the drum. Apertures in the recess allow fluid to flow into the containment space where it is held until emptied through a drain hole. According to one aspect of this invention, the device is tiltable and has wheels to facilitate transport of the drum. According to another aspect of the invention, the device is stationary and is adapted to store multiple drums in spaced horizontal adjacency and, with a drum spacer, in spaced vertical adjacency.