Plain bearing of a blade holder of a shearer loader
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Rack for moving a winning machine in underground mining
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Braking controller for roller-cutter in mining operation - imposes limit on frequency of supply from inverter to traction motors until brake release is signalled e.g. by proximity sensors
DE4138553A1
Roller loader for selective extraction of minerals - has two cutting rollers with vertical rotary axes located at end of bearer arm
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METHOD FOR CONTROLLING THE FEED OF A ROLLER LOADER IN DEGRADING OPERATION
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METHOD AND DEVICE FOR LINING LONG-STRETCHED OPENINGS WITH CIRCULAR AND NON-CIRCULAR CROSS-SECTIONS, ESPECIALLY FOR CHANNEL AND TUNNEL CONSTRUCTION
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Opto-coupler for digital signal transmission - uses control stage for counter-phase control of parallel elements
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Driving long opening with non-circular cross=section - involves obliquely angled revolving cutting head which is driven forward along horizontal plane
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Machine for laying composite pipes - consists of coiled liner and strip with elongated reinforcement ridges and elongated hole
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Asynchronous electric motor drive for mining machine - has single current regulator allowing individual or parallel operation of motors
DE4009237A1
Lower loader for longwall working - has auxiliary roller to pulverise coarse debris to prevent blockage in machine gantry
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Bus stop information system - has on board transmitter to influence display to indicate delay
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Individual drive for tram car wheel - has wheel mounted on shaft formed integrally with internal wall of gear box
DE3928342A1
TENSIONING DEVICE FOR A SELF-PROCESSING SHIELD DRIVING MACHINE
DE3927515A1
Hydraulic-pneumatic pump for open cast mining equipment - has central piece releasably connected to side pieces having connection conduits
DE3921920A1
TUNNEL DRIVE AND REMOVAL DEVICE
DE3919672A1
Roll cutting machine with additional roll with vertical axis of rotation
