Abstract: A compact spreader on continuous tracks (10) for use in opencast mining has a discharge boom (70) with a rearward extension designed as a rocker having a counterweight (100). The rocker is suspended centrally in a framework (50) over the turntable (40). Hydraulic cylinders (14) absorb only forces from half of the imposed load. The embodiment according to the invention is suitable for large band widths and discharge projections up to 100 m and eliminates the danger of tipping over.

Abstract: A mobile crusher (2) is provided that can be displaced on four caterpillars and that includes a supporting frame (20), a large hopper (31), an apron conveyor (32), a sizer (34) and an intermediate conveyor (36) for use in strip-mining. The material is received by the shovel (1) of a shovel excavator or a wheel loader, is fed to the crusher (2), crushed and is then transferred onto a conveyor plant via a discharge conveyor system. The crusher (2) has to follow at the same cycle in which the shovel excavator moves forward during an advance in mining. In order to obtain a good maneuverability of the crusher (2), the two front caterpillars (22) are driven and can be steered like a two-caterpillar chassis. As the crusher (2) is subject to high loads, all components have to have a robust design. For this purpose, the individual functional groups are accommodated in a stable supporting frame (20).

Abstract: A compact spreader on continuous tracks (10) for use in opencast mining has a discharge boom (70) with a rearward extension designed as a rocker having a counterweight (100). The rocker is suspended centrally in a framework (50) over the turntable (40). Hydraulic cylinders (14) absorb only forces from half of the imposed load. The embodiment according to the invention is suitable for large band widths and discharge projections up to 100 m and eliminates the danger of tipping over.

Abstract: A mobile crusher (2) is provided that can be displaced on four caterpillars and that includes a supporting frame (20), a large hopper (31), an apron conveyor (32), a sizer (34) and an intermediate conveyor (36) for use in strip-mining. The material is received by the shovel (1) of a shovel excavator or a wheel loader, is fed to the crusher (2), crushed and is then transferred onto a conveyor plant via a discharge conveyor system. The crusher (2) has to follow at the same cycle in which the shovel excavator moves forward during an advance in mining. In order to obtain a good maneuverability of the crusher (2), the two front caterpillars (22) are driven and can be steered like a two-caterpillar chassis. As the crusher (2) is subject to high loads, all components have to have a robust design. For this purpose, the individual functional groups are accommodated in a stable supporting frame (20).

Abstract: One embodiment of a semiconductor device includes a semiconductor chip having long sides. A system carrier is connected to the semiconductor chip and has an island. The island has an opening formed centrally therein over a large area. The opening is wider than the semiconductor chip on two of the long sides of the semiconductor chip. Another embodiment of a semiconductor device includes a semiconductor chip having corner regions. A system carrier is connected to the semiconductor chip and has an island with an opening formed therein. The semiconductor chip is joined to the island only in the corner regions.