MAKING FILES in SHEFFIELD, EARLY 1840s Excerpts from "A Day at the Fitzalan Steel and File-Works, Sheffield," The Penny Magazine Supplement, Volume XIII, March 1844, pages 121-128. "... we have been favored with access to the Fitzalan Steel- Works of Messrs. Marriott and Atkinson, which besides exhibiting the various processes of steel-making... file manufacture (one of the most important in which steel is employed) is there conducted on a large scale. "These works are situated at Attercliffe, an eastern suburb of Sheffield... Sheffield is in a hollow, nearly surrounded by hills; and several small rivers flow between these hills into the hollow, thus affording moving power for a large number of water- wheels. Attercliffe is situated at a part of the district where all these streams have become one, and where also a canal opens a communication between Sheffield and the port of Hull, so there is both motive-power and transit-power at command. "The Fitzalan Works occupy a quadrangular space surrounded by buildings on the north bank of the Sheffield Canal. When within the entrance-gates we find a quadrangle having a large tank or reservoir near the centre, and around it are the various workshops for conducting the manufacturing processes. On the right hand are the 'converting' furnaces, where the iron is first made to assume the form of steel; opposite are the 'tilting' and 'shearing' houses, the 'rolling-mill,' the 'casting-house,' the 'engine-house,' and other buildings pertaining more or less to the manufacture; on the left are the 'file-forges,' where pieces of steel are brought into the rough form for files; while on the north or entrance side of the quadrangle are ranges of shops in which these pieces go through the numerous stages of progress incidental to the production of a file. Southward of the group of buildings is a wharf on the banks of the canal, where barges bring the iron from Hull and other places, and whence the finished goods are dispatched by similar conveyance. On the opposite banks of the canal are little patches of garden-ground, held by the proprietors of the Works, and let out to their workmen on the allotment system..." "We must now transfer our attention to that portion of the works which is appropriated to the File-manufacture. "These tools, simple and unimportant as they may seem... to those who never enter an artisan's workshop, are among the most note-worthy articles made of steel. They are the working-tools by which every other kind of working-tool is in some degree fashioned. Whether a man is making a watch or a steam-engine, a knife or a plough, a pin or a coach, he would be brought to a stand if he had not files at his command. It may be a file with a hundred serrations to an inch, or with six or eight; it may have straight cuts like most files, or angular holes like a rasp; it may be two inches long, or a yard long; it may be round, or half- round, or triangular, or square, or flat; blunt or pointed, straight or curved; but a file of some sort or other will be found in almost every workshop. "The first place to which we have to follow the file-makers is the forge... There is on one side a forge-fire, with a hearth on which to place the fuel, and bellows placed behind, much in the same way as a common smith's forge, but with more attention to neatness and order. The workman's bench... is a large block of hard stone, weighing about three tons... On this are fixed one or more anvils... There are also hammers of various sizes and peculiar shapes, and other small implements necessary to the operation... "Except for the smallest files, there are two men employed at each forge -- a striker and a forger, one of whom manages the fire, heats the steel, and acts as a general assistant; while the other is the superior workman, who hammers the file into shape, and is responsible for its quality. There are various notches, ridges, curvatures, and gauges, on and about his small steel anvils, which enable him to work the piece of steel into the proper form for a file, including the narrow handle, or 'tang.' The rate of working is such, that at the whole of the sixteen 'hearths,' about fifty thousand dozens of files are made in a year. Each man accustoms himself to the making of one particular size of file... From the thickness and softness of the heated metal, there is very little rebound to the hammer, and this renders the work of the striker rather laborious, especially for large files, where a hammer of nearly twenty pounds weight is used. "The files are then annealed or 'lighted,' in order to bring the steel to a state of softness fitted for the cutting of teeth... Next succeeds the process of grinding, where the... 'blanks' are ground down to a true and regular surface, whether that be flat or curved... "Then ensues the very important and curious operation of cutting the files, one which has hitherto defied the powers of machinery... In one of the buildings of the works is a long room in which file-cutters are ranged around the sides in front of the windows... each one having a small bench before him with a simple apparatus for fastening down the file while being cut... "The file being slightly strapped down, the cutter takes a sharp tool or chisel in the left hand and a hammer in the right. This tool is a very hard, sharp, and tough piece of steel, having an edged fitted to produce the required kind of tooth, and a head to receive the blow of the hammer. "The hammers employed (the heaviest of which weigh about nine pounds each) have the handles placed... at such an angle that the cutter can, while making the blow, pull the hammer in some degree towards him, and thus give a peculiarity to the shape of the tooth. If the file is a flat one... the cutter places the small steel tool on it at a particular angle, and with one hammer blow cuts an indentation. He then, by a minute and almost imperceptible movement, changes the place of the tool, and makes another cut parallel to, and a short distance from, the first; then a third, a fourth, and so on to the end of the file, shifting the file slightly in its fastening as he proceeds. Generally the file is cut doubly, one set of cuts crossing the other at an angle... In this case he reverses the position in which he holds the cutting tool, and proceeds as before. If the file be round or half-round, or have a curved surface of any kind, he still uses a straight-edged cutting tool; but as this can only make a short indentation, he has to go round the file by degrees, making several rows or ranges of cuts contiguous one to another. "Such is the art of file-cutting; and it contains many points worthy of remark. First, the angle at which the cuts are made depends greatly on the purpose to which the file is to be applied... Next, the cut is not a mere indentation... it is a triangular groove of particular shape... The strict parallelism of the several cuts can only be brought about by practised accuracy of hand and eye, since there is no guide, gauge, or other contrivance for regulating the distance... As an instance of what skill and long practice can effect in this respect, we have before us a file about ten inches long... The flat side is cut with a hundred and twenty teeth to the inch, so that there are about twelve hundred teeth on that side; the round side has such an extent of curvature, that it required eighteen rows of cuts to compass it; each little cut on this side is not much above a twentieth of an inch in length; and the number is thus so great, that for the whole file there are twenty-two thousand cuts, each made with a separate blow of the hammer, and the cutting tool being shifted after each blow! ...the whole of the files made at Sheffield (the headquarters of the trade) are cut by hand... "When the files are cut, they are brought into the warehouse to be stamped with the corporate mark of the firm. They are next hardened... the proper working of the file depends a good deal on the manner in which it is done... and while yet warm is straightened by a small apparatus at hand... "The files are then scrubbed clean by women with sand and water; and lastly pass into the hands of the foreman, who tests every file singly in a way which brings both the hearing and the touch into exercise... A firm which has once acquired a reputation for good files is extremely solicitous not to damage it by the sale of even one that is defective." NOTE: THE FULL ARTICLE IS ABOUT 7 TIMES THIS LONG; THE FILE PART IS MORE THAN TWICE AS LONG. http://www.knife-expert.com/