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excavator |
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excavator) The mechanical excavator utilizes hydraulic rams. The ram consists of a piston in a cylinder connected by pipes to a fluid reservoir. The lever opens a valve that admits high-pressure fluid to one side of the piston, forcing it and the digger arm which is connected to it to move.
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| At eight o'clock the next morning the first stroke of the pickaxe was struck upon the soil of Florida; and from that moment that prince of tools was never inactive for one moment in the hands of the excavators. At the opposite extremity of the town it was even known that the excavators had been able to open a communication with him through a pipe, and that he had received both soup and brandy by that channel, and that he had said with admirable fortitude that he was All right, my lads, with the exception of his collar-bone. He saw the pit grow in depth until a great hole yawned the width of the trail--a hole which was amply large enough to hold at one time all of the six excavators. |
excavator
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