Self-propelled pickup device for picking up materials lying on t
Self-propelled undersea nodule mining system
Self-retaining sleeve and bit
Self-sharpening nosepiece with skirt for attack tools
Sensors on a degradation machine
Separating and support element for a tool holder
Shaft excavation method
Shaft-sinking apparatus with milling head and central worm conve
Shank assembly
Shear lock keeper ring
Shear-type loader for a tunnel and gallery excavator
Shearer loader for underground mining comprising a spray system
Shearer loader for underground mining operation
Shearer-loader drive subassembly and guide shoe for it
Shearing machine with movable shearing drum and conveyor
Shearing machine with roof-bolt drilling and setting devices
Shield advancing machine
Shield assemblies for installation in under-ground roadways and
Shield machine
Shield of a degradation assembly