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Updated: May 16, 2025
Langley remarked that attempts had been made to connect the engine direct to the pump of a Bazin dredger, but this arrangement failed, and the belt acted as a safety arrangement and prevented breakage by slipping when the pump was choked in any way.
By this time, I'd gotten the jeep around the dredger we'd come to the end of the nuclear-power plant buildings and cut off into open country. That is to say, nothing but pillar-buildings two hundred yards apart and piles of bagged mineral nutrients for the hydroponic farms.
I went around to the other side where the incendiaries had met their end, moving slowly as close to the face of the fire as I could get and shooting the burning wax flowing out from it. A lot of equipment, including two of the three claw-derricks and a dredger they'd brought a second one up from the waterfront were moving to that side.
The professor's tastes lay more in the direction of geology, mineralogy, and botany, though he was also an enthusiastic naturalist, and thus, whilst he sallied forth every morning armed with gun, hammer, specimen box for his botanical treasures, and bag for his minerals, the three others went their several ways, either armed with traps and guns in search of game, or in one of the boats, duly provided with dredger, net, and line, in quest of ocean spoils.
In the after part of the hold is placed a horizontal boiler, A, which supplies steam to a pair of inverted vertical engines, B. These engines drive, through belts and overhead pulleys, a centrifugal pump, C, which discharges into the open trough, H. The suction pipe, D, of this pump passes through the side of the dredger, and then forms an elbow bent downward at an angle of 45 deg.
Up front, something seemed to have given way. The dredger went lurching forward, and everything moved off after it. "I get it," I said. "Hallstock's getting ready to dump Ravick out the airlock. He sees, now, that Ravick's a dead turkey; he doesn't want to go into the oven along with him." "Walt, can't you ever give anybody credit with trying to do something decent, once in a while?" Dad asked.
Many states and nations, and many world-famous mining companies are represented by exhibits of ores and metals, of mine models, and mining and metallurgical processes in operation. California shows a gold dredger and a hydraulic mine in operation. The great copper mines of California, Montana, Utah, and Japan, have installed significant exhibits.
It is worth notice, that "dragge" was applied to a grain in the eastern counties, though not exclusively there, appearing to denote mixed grain. Bishop Kennett tells us that "dredge mault is mault made up of oats, mixed with barley, of which they make an excellent, freshe, quiete sort of drinke, in Staffordshire." The dredger is still commonly used in our kitchen.
A partial revival of alluvial mining has been brought about through the application of the giant dredger to cheapening the process of extracting exceedingly small quantities of gold from alluvial drift and dirt.
It was a bright day, but the gloomy walls of the houses and the grey look of the river banks seemed to proclaim that life is hard and cruel. Out in the stream a dredger, all drab with marl, was discharging one after the other its bucket-fuls of miry gravel. By the waterside a stout oaken crane was unloading millstones, wheeling backwards and forwards on its axis.
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