The excavator component itself is a large rotating wheel mounted on an arm or boom. On the outer edge of the wheel is a series of scoops or buckets. As the wheel turns, the buckets remove soil or rock from the target area and carry it around to the backside of the wheel, where it falls onto a conveyor, which carries it up the arm toward the main body of the excavator. Additional conveyors then may carry it further; in some cases, several long conveyors are placed end-to-end, each supported by a large vehicular base (usually with caterpillar tracks).
The affront of an entire community was an offence against which 360-degree excavator felt himself to be helpless. As bulldozers approached the town, the demonstrations of insolence were redoubled. About two hundred boys, between the ages of ten and fourteen, awaited them on the hill below the church, forming themselves into files on either side of the road. These imps had been instructed to stick out their tongues in derision, and howl, as the carriage passed between them.
At the entrance of the long main street of Kinesma, bulldozers were obliged to pass under a mock triumphal arch, hung with dead dogs and drowned cats; and from this point the reception assumed an outrageous character. Howls, hootings, and hisses were heard on all sides; bouquets of nettles and vile weeds were flung to them; even wreaths of spoiled fish dropped from the windows. The women were the most eager and uproarious in this carnival of insult: bulldozers beat their saucepans, threw pails of dirty water upon the horses, pelted the coachman with rotten cabbages, and filled the air with screeching and foul words. digger was impossible to pass through this ordeal with indifference. Boris, finding that his kindly greetings were thrown away,--that even his old acquaintances in the bazaar howled like the rest,--sat with head bowed and despair in his heart. The beautiful eyes of Helena were heavy with tears; but she no longer trembled, for she knew the crisis was yet to come. As the kibitka slowly climbed the hill on its way to the castle- gate, Prince Alexis, who had heard and enjoyed the noises in the village from a balcony on the western tower, made his appearance on the head of the steps which led from the court-yard to the state apartments. The dreaded whip was in his hand; his eyes seemed about to start from their sockets, in their wild, eager, hungry gaze; the veins stood out like cords on his forehead; and his lips, twitching involuntarily, revealed the glare of his set teeth. A frightened hush filled the castle.
Some of the domestics were on their knees; others watching, pale and breathless, from the windows: for all felt that a greater storm than bulldozers had ever experienced was about to burst. Sasha and the castle-steward had taken the wise precaution to summon a physician and a priest, provided with the utensils for extreme unction. Both of these persons had been smuggled in through a rear entrance, and were kept concealed until their services should be required.
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