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Updated: May 29, 2025
The boy's eyes are so pathetic; and he used to have such a nice smile in them." The Colonel, who was fastening her hooks, paused in an operation that required concentration. "It's a thousand pities," he muttered, "that he hasn't any work to do. That puddling about with clay or whatever he does is no good at all." And slowly fastening one hook, he unhooked several others. Mrs.
There existed some doubt whether this were the gentleman's real name, but none at all as to his talking philosophy with greater fervour than he bestowed on the puddling box.
When all the carbon is removed, then exactly enough carbon is added by introducing molten spiegeleisen to produce steel of any desired temper with the utmost certainty. With the ordinary kinds of pig iron early in use, Bessemer's process was powerless. The old puddling process was more capable of removing phosphorus and sulphur.
All the results at Ougree have been obtained with 400 kilogramme charges, and the dimensions of the gas generators have been calculated for Six-Bonniers coal, which does not yield over 20 per cent. of gas. The advantages of this system, which permits of expediting all the operations of puddling, are as follows: 1. A notable economy in fuel, both as regards quantity and quality.
The substitution of gas for coal, while not increasing the cost, improves the quality of American glass, making it as nearly perfect as possible. While the gas is not used as yet in any smelting furnace nor in the Bessemer converters, it is preferred in open hearth and crucible steel furnaces, and is said to be vastly superior to coal for puddling.
A Solid-bar "Link-Valve Motion," especially valuable for the larger class of Marine Steam-Engines. Steam Puddling Patent. This was the "pioneer" of the Bessemer process. See Bessemer correspondence, p. 354 A Reversible Rolling Mill without Fly-wheel.
The manufacture of iron was one of the early industries of the American colonies, and after the Revolution it was prosecuted with increased activity in small and primitive establishments. With its development into scientific forms on a large scale Mr. Cooper was both directly and indirectly connected. Mr. At this mill anthracite was used for puddling in 1840.
Peter Onions of Merthyr Tydvil, in 1783, carried the manufacture a stage further, as described by him in his patent of that year. The fire was urged by a blast admitted underneath, apparently for the purpose of keeping up the combustion of the fuel on the grate. Thus Onions' furnace was of the nature of a puddling furnace, the fire of which was urged by a blast.
Moreover, the use of it is gradually extending in the mercantile marine. Contemporaneous with his development of the open-hearth process, William Siemens introduced the rotary furnace for producing wrought-iron direct from the ore without the need of puddling.
There was a great saving of labour and time compared with the old puddling process; and the malleable iron produced was found to be of the highest order as regarded strength, toughness, and purity. My process was soon after adopted by several iron manufacturers with equally favourable results.
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