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DE2601441A1
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On site concrete pile - is made by placing concrete and rolled reinforcement into borehole subsequently expanded by pneumatic compacting tools
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RETRACTABLE AIR DRILLING MACHINE IMPACTING EFFECT WITH SELF MOVEMENT
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Air operated drilling machine - with braking against rearward motion and rotation
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REVERSIBLE COMPRESSED AIR IMPACT DEVICE FOR THE FORMATION OF DRILL HOLES IN THE SOIL
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Impact drill for pipe line installation etc - has bore hole direction control with displaced centre of gravity
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Shaking conveyor for bulk goods - has interconnected conveyor surfaces with shaker mechanism attached on underside
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Shaking conveyor for bulk goods - has shaker mechanism connected above closed trough carrying material on downward incline
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SELF-PROPELLED DRIVING MACHINE FOR DRILLING HOLES
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Vibration sieve used in ore mining - with the sieves receiving an oscillation movement from a vibrator
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Device for driving holes in ground - comprises rotating crankshaft having rollers journalled on crank pins
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Combustion-powered impact mechanism esp. for soil-boring tool - has reciprocable striker co-operating with ported sleeve
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COMPRESSED AIR IMPACT MACHINE
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MANUAL AIR IMPACT MACHINE
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PNEUMATIC IMPACT MACHINE
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SELF-PROPELLED COMPRESSED AIR IMPACT GEAR
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METHOD FOR CLEANING TAP WATER
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