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Updated: May 20, 2025
Little by little the tiny dot above them broadened, and turned to a wide disk of blue sky; and their lamps dwindled to a pale yellow before the clear light of day, as the cross-head, with its living freight, slowly came up into the bright air, amid the shouts of the men who stood waiting to receive it.
He was going to forge and shrink a wrought-iron collar on the neck of the piston-rod where it joined the cross-head, and from the collar he would bolt a Y-shaped piece of iron whose lower arms should be bolted into the cross-head. If anything more were needed, they could use up the last of the boiler-plate. So the forges were lit again, and men burned their bodies, but hardly felt the pain.
The ram or piston was attached to an exceedingly thick and heavy beam of cast iron, called the cross-head, strengthened with bars of wrought iron. To the cross-head were attached the huge chains that descended to the tubes far below, to which they were secured, so that, as the ram was forced up 6 feet at each stroke, the tube was raised the same distance.
One, two, three! rang out the engineer's bell. The engineer was perplexed. He had been lowering the bucket more and more slowly, and still there had reached him no summons to stop, although his dial told him that the cross-head must be far below the seven-hundred level. And now came the summons to raise slowly, when he was sure that it was near the level of no station. What was the matter?
It went over the cross-head and down a spout, then stretched out in a golden ribbon along the glistening white belt that ran the length of the gallery. Then, like the wheat from the cars, it was caught up again in the cups, and shot down through spouts, and carried along on belts to the remotest bins in the annex.
"There!" he said; "now we're safe for the time being. The next question is: how are we going to get out of this trap?" "Why couldn't we stay on the cross-head?" asked Charlie, as it began to move slowly away from the spot where it had lodged. "Just that reason," returned Mr.
"It's against rules to ride in it; and anyway I usually go on the cross-head, myself, for the bucket reminds me too much of Simple Simon. Step on here," he added, as the crude elevator sank down until the upper beam was on a level with the surface of the ground. "Now, if you just hold on to the rope, you're all right.
He knew that something was wrong, and that it must concern the superintendent, since he had been the last man to go down. He spoke a few quick words to his assistant, and in a moment more a little crowd had gathered at the mouth of the shaft, just as the bell sounded again, three strokes. Standing once more on the cross-head, Mr.
This kind of attachment was found to be more convenient than the mode of passing the hawser through the ring of the buoy when the vessel was to be made fast. She had then only to be steered very close to the buoy, when the salvagee was laid hold of with a boat-hook, and the bite of the hawser thrown over the cross-head.
He was always in advance of mechanical practicalities rather than behind, and as we have seen, had to retrace his steps, in the case of expansion. The other improvement is the cross-head of Haswell, an American, a decided advance, giving the piston rod a smooth and straight bed to rest upon and freeing it from all disturbance.
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