For digging in semiconsolidated sediments, bucket-wheel suction dredges and cutter suction dredges are used.
In the chaos, one of the orderlies had wheeled a suction machine to the foot of Mr. Sultan's stretcher, hoping to clear his lungs of water and blood.
Over the following centuries, European inventers came on fire - amongst many other breakthroughs were the blast furnace, canal lock, chimney, coal fire, glass window, eyeglasses, marine chart, water wheel, printing press, suction pump, loom, water-driven bellows, weight-driven clock, and windmill.
The orderly wheeled up another suction device, trailing a tangle of extension cords and plugs and exposed wires.
A suction bucket wheel on a floating dredge supplies a mineral-rich sand to a set of screens called trommels, which remove unwanted materials.
The bucket-wheel dredge is identical to the cutter suction dredge except that a wheel excavator is used in place of the rotary cutter.
The Commonwealth displacement and underwater suction, when the wheels are going, result in much water geing drawn from shore putting heavy strain on the barges holding lines - maybe enough to sever the lines and set them adrift.
No word on pricing yet, although CNET seems to think it'll cost about $20. I'd guess $20 for the standalone wheel and $25-$25-$30 the wheel with the suction-cup base.
In a suction operation the sheets remain piled up vertically; a wheel brushes a corner of the top sheet and separates it from the others, enabling a compressed-air blower to inject a cushion of air underneath the sheet.
Instead of using a boot to keep a wheel from moving, officers can slap a Barnacle across the windshield, suction it to the glass, and arm it with a keypad.
Mr. Walston jumped behind the wheel, programmed the Music Hall's address into a portable GPS unit suctioned to the windshield, and they were off.
