Abstract: A mobile installation for the treatment of household refuse comprises an elongated vehicle having a centrally located water tank into which the refuse is dumped. Heavier components which settle to the bottom of the tank are transported by an endless conveyor from one end of the tank to a magnetic separator which removes magnetic metal. Other heavy components drop into a crusher and the crushed material is mixed with additives such as cement or coal dust and compressed in a press. Lighter components are removed from the opposite end of the tank by an upwardly inclined screw conveyor which squeezes out much of the water. The lighter components are then mixed with additives such as cement and compressed by an extruder press.

Abstract: An attachment device fabricated from sheet metal and adapted to be driven into a wall includes a penetrating portion which is of a truncated-conical shape having at one end a wall-piercing open tip and at the other end a flat striking surface. A collar-forming portion integral with the penetrating portion extends out beyond the striking surface and has a neck portion and cutout openings to permit bending thereof around the object to be held and a tongue at the free end adapted to be secured to the penetrating portion to maintain the collar in tight holding contact with the object being held.