Industrial Biography: Iron Workers and Tool Makers

iron superseded that of bronze, so will the age o

Benjamin Huntsman est tout a fait accomplie, et chaque jour les consequetces sen feront p

forms as bar and cast steel; and it is principally because of its many admirable quali

tools with which the Egyptians covered their obelisks and temples of porphyry and syenite with hieroglyphics were made of Indian steel, as probably no other metal was capable of executing such work. The art seems to have been well known in Germany

a place where the best arrowheads were made,-the Earl of Richmond owing his success at the battle of Bosworth partly to their superior length, sharpness, and finish. The

knives. In 1575 we find the Earl of Shrewsbury presenting to his friend Lord Burleigh "a case of Hallamshire whittells, being such fruites as his pore cuntrey affordeth with fame throughout the realme.

ontinued its manufacture of knives; for we find that the knife with which Felton stabbed the Duke of Buckingham at Portsmouth in 1628 was traced to Sheffield. The knife was left sticking in the duke's body, and when examined was found to bear the Sheffield corporation mark. It was ultimately ascertained to have been made by one Wild, a cutler, who had sold the knife fo

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ut Europe as those of Rogers or Mappin are now. Scythes and sickles formed other branches of manufacture introduced by th

ing this valuable material of manufactures is by exposing iron bars, placed in contact with roughly-granulated charcoal, to an intense heat,-the process lasting for about a week, more or less, according to the degree of carbonization required. By this means, what is called BLISTERED STEEL is produced, and it furnishes the material out of which razors, files, knives, swords, and various articles of hardware are manufactured. A further process is the manufacture o

h carbon in a material state.[3] Chief merits of cast-steel consist in its possessing great cohesion and closeness of grain, with an astonishing degree of tenacity and flexibility,-qualities which render it of the highest value in all kinds of tools and instruments where durability, polish, and fineness of edge are essential requisites. It is to

l manufactures of Yorkshire to the first rank, and powerfully contributing to the establishment on a firm foundation of the industrial and commercial supremacy of Great Britain. It is remarkable that a French writer should have been among the first to direct public attention to the merits of this inventor, and to have first published the few facts known as to his history in a French Government Report,-showing the neglect which men of this class have heretofore received at home, and the much g

nd mender in the town of Doncaster. He also undertook various other kinds of metal work, such as the making and repairing of locks, smoke-jacks, roasting-jacks, and other articles requiring mechanical skill. He was remarkably shrewd, observant, thoughtful, and practical; so much so that he came to be regarded as the "wise man" of his neighbourhood, and wa

was difficult to be had at that place, he determined, for greater convenience, to remove to the neighbourhood of Sheffield, which he did in 1740. He first settled at Handsworth, a few miles to the south of that town, and there pursued his investigations in secret. Unfortunately, no records have been preserved of the methods which he adopted in overcoming the difficulties he had necessarily to encounter. That they must have been great is certain, for the process of manufacturing cast-steel of a first-rate quality even at

grand idea of purifying the raw steel then in use, by melting it with fluxes at an intense heat in closed earthen crucibles. The buried masses were found in various stages of failure, arising from imperfect melting, breaking of crucibles, and bad fluxes; and had been hid away as so much spoiled steel of which nothing could be made. At last his perseverance was rewarded, and his invention perfected; and though a hundred years have passed since

into pieces of about a pound each. When the pots are all thus charged with steel, lids are placed over them, the furnace is filled with coke, and the cover put down. Under the intense heat to which the metal is exposed, it undergoes an apparent ebullition. When the furnace requires feeding, the workmen take the opportunity of lifting the lid of each crucible and judging how far the process has advanced. After about three hours' exposure to the heat, the metal is ready for "teeming." The completio

up all hopes of creating a demand in that quarter. Foiled in his endeavours to sell his steel at home, Huntsman turned his attention to foreign markets; and he soon found he could readily sell abroad all that he could make. The merit of employing cast-steel for general purposes belongs to the French, always so quick to appreciate the advantages of any new discovery, and for a time the whole of the cast-steel that Huntsman could manufacture was exported to France. When he had fairly established his business with that country, the Sheffield cutlers became alarmed at the reputation which cast-steel was acquiring abroad; and when they heard of the preference displayed by English as well as French consumers for the cutlery manufactured of that metal, they readily apprehended the serious consequences that must necessarily result to their own trade if cast-steel came in

lations abroad as to Huntsman's process. It was generally believed that his secret consisted in the flux which he employed to make the metal melt more readily; and it leaked out amongst the workmen that he used broken bottles for the purpose. Some of the manufacturers, who by prying and bribing got an inkling of the process, followed Huntsman implicitly in this respect; and they would not allow their own workmen to flux the pots lest they also should obtain possession of the secret. But it turned out eventually that no such flux was necessary, and the practice has long since been discontinued. A Frenc

of disguising himself as a tramp, and, feigning great distress and abject poverty, he appeared shivering at the door of Huntsman's foundry late one night when the workmen were about to begin their labours at steel-casting, and asked for admission to warm himself b

the newly discovered process. He observed, first of all, that bars of blistered steel were broken into small pieces, two or three inches in length, and placed in crucibles of fire clay. When nearly full, a little green glass broken into small fragments was spread over the top, and the whole covered over with a closely-fitting cover. The crucibles were then placed in a furnace previously prepared for them, and after a lapse of from three to four hours, during which the crucibles were examined from time to time to see that the metal was thoroughly melted and incorporated, the workmen proceeded to lift the crucible from its place on the fu

rposes. There he continued to flourish for six years more, making steel and practising benevolence; for, like the Darbys and Reynoldses of Coalbrookdale, he was a worthy and highly respected member of the Society of Friends. He was well versed in the science of his day, and skilled in chemistry, which doubtless proved of great advantage to him in pursuing his experiments in metallurgy.[8] That he was possessed of great perseverance will be obvious from the difficulties he encountered and overcame in perfecting his valuable invention. He was, however, like many persons of strong origin

1846, still speaks of the cast-steel bearing the mark of "Huntsman and Marshall" as the best that is made, and he adds, "the buyer of this article, who pays a higher price for it than for other sorts, is no

uable material. Of the total quantity of cast-steel manufactured in England, not less than five-sixths are produced there; and the facilities for experiment and adaptation on the spot have enabled the Sheffield steel-makers to keep the lead in the manufacture, and surpass all others in the perfection to which they have carried this

s to be mechanically mixed and diffused through the crude iron is entirely consumed. The metal becomes thoroughly cleansed, the slag is ejected and removed, while the sulphur and other volatile matters are driven off; the result being an ingot of malleable iron of the quality of charcoal iron. An important feature in the process is, that by stopping it at a particular stage, immediately following the boil, before the whole of the carbon has been abstracted by the oxygen, the crude iron will be found to have passed into the condition of cast-steel of ordinary quality. By continuing the process, the metal losing its carbon, it passes from hard to so

bringing the process to perfection, by his great skill and indomitable perseverance. In the Heath process, carburet of manganese is employed to aid the conversion of iron into steel, while it also confers on the metal the property of welding and working more soundly under the hammer-a fact discovered by Mr. Heath while residing in India. Mr. Mushet's process is of a similar character. Another inventor, Major Uchatius, an Austrian engineer, granulates crude iron

experiments conducted before their eyes have issued in a most valuable though unwritten code of practice, the details of which are known only to themselves. They are also a most laborious class; and Le Play says of them, when alluding to the fact of a single workman

De Re Metallic

PH HUNTER, Histor

Papers On Ir

., 4th series, are unique of their kind, and have as yet no counterpart in English literature. They are respectively entitled 'Memoire

n the possession of his grandson, with a pendulum made of cast-steel. The manufacture of a pendulum of such a material at that

nes, vols. iii. an

an excellent little work, in which the process of

l preserved at Attercliffe, made by Hunts

Mines, vol. ix.,