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Updated: May 11, 2025
The process of rolling toughens the iron, seeming to draw out its fibres; and iron that has been twice rolled is considered fit for ordinary uses. For the various parts of a bridge, however, where great toughness and tensile strength are necessary, as well as uniformity of texture, the iron is rolled a third time. The bars are therefore cut again into pieces, piled, re-heated and rolled again.
Sam's plan was simply to burn these partitions away with a hot iron, which would convert the cane into a long, slender, wooden tube, very hard, very light, and straight as an arrow. Tom went to work at once to burn out the joints, a work which occupied a good deal of time, as the iron had to be re-heated a great many times.
Having heated the iron, Dick knocked it out into a long thin bar, and then placing it on the mass of coral which served as an anvil, cut it with successive sharp blows of his knife into small pieces. Each of these had to be re-heated, and taken up and dropped into a small hole with a blow from the hammer, when the head was produced by another sharp blow.
But out in the prospects and on the trails there was no such aqueous luxury. There was no water for washing and little to drink. And that little was mostly drunk as a terrible black tea, like lye, heated and re-heated, with now a little more water added, now another handful of leaves.
Hiram insisted that every stub and root be removed that a heavy plow could not tear out. They had made some progress by noon, however, when Sister came down with their dinner. Hiram built a campfire over which the coffee was re-heated, and the three ate together, Sister enjoying the picnic to the full.
Here Legrand, having re-heated the parchment, submitted it to my inspection. "But," said I, returning him the slip, "I am as much in the dark as ever. Were all the jewels of Golconda awaiting me upon my solution of this enigma, I am quite sure that I should be unable to earn them."
Whenever the stage stopped he had it re-heated, and in many ways added to the comfort of her journey. At the close of the next meeting to her surprise she found his fine sleigh waiting filled with robes and drawn by two spirited gray horses, and he himself drove her to his own beautiful home presided over by a sister, where she spent Sunday.
The effect of this operation is to squeeze all the slag and cinder out of the ball, and force the iron to assume the shape of a short thick cylinder, called "a bloom." This process was formerly performed by striking the ball of iron repeatedly with a tilt-hammer. The bloom is now re-heated and subjected to the process of rolling.
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