Chapter XII: Part 12
By far the largest department of the Royal Arsenal is devoted to the construction of carriages and packing-cases for moving artillery, baggage, and the various munitions of war. At the present moment the carriage department employs no less than three thousand hands, together with three hundred machines, moved by twenty-three steam-engines, which do the work of an additional twelve thousand men! The bulky nature of the material dealt with, and the store-houses required for stowing it away, together with the numerous workshops called into existence by the Crimean war, have caused this department to burst its old bounds and to invade 250 acres of the adjoining marsh--the area of the workshops alone covering 255,152 superficial feet, and the entire ground occupied being no less than 1,445,440 feet. This immense amount of elbow room has enabled Colonel Tulloch, the superintendent of the department, to systematize the manufacture, and cause the timber to pass along in one unbroken progress from the time when it is landed upon the wharf to the time when the finished articles are delivered over to the storekeeper. If we follow this stream from stage to stage, we shall catch a flying view of the operations of this department, whose province it is to provide package and carriage for the British army at home and abroad.
The timber which forms the principal raw material employed is brought by ships to the mouth of the canal which runs along the eastern side of the Arsenal; here it is transferred to lighters which convey it some distance inland to the quay in the immediate neighbourhood of the timber field. By means of powerful derrick cranes, which can make a long or a short arm at pleasure, it is next unloaded and swung upon the trucks of the railway which ramifies through every portion of the premises, and forms the means of communication between its different points. The trucks, when full, immediately start with their burthen for the contiguous timber field, a square space covering 20 acres. Here the huge logs are deposited in long lines, which extend from one end of the field to the other, having roadways between them laid with rails. Over each line or row of timber strides a powerful travelling crane which, with a slight impulse given by one man, is made to traverse from end to end of the row, depositing or taking up in its way logs of oak or teak of many tons weight as easily as Gulliver could have picked up the Lilliputians he bestrode. Before the introduction of this powerful machinery, from fifty to one hundred pairs of horses were employed in this department alone, all of which are now dispensed with, and a saving effected of 6,000_l._ a-year.
The usual store in the timber-field amounts to 60,000 loads in various stages of seasoning. The varieties of climate in which the British army has to serve are so many, that foreign woods have been introduced to supply the place of oak, which cannot be found in quantities equal to the demand. Thus we find in the timber-field sabicu, a dense East-Indian wood which is used for the heavy blocks of gun carriages; pedouk, from the same country, which is employed for a similar purpose; and iron bark, an Australian wood. Of English timber, such as ash, elm, and beech, there is a very large store. What is called wheel timber, on the soundness and proper adaptation of which depends the safety of the artillery and transport service, is entirely composed of the most graceful trees of our woodlands; the spokes being made of oak, the naves of elm, the felloes or rims of ash. Beech is also largely used for the fuses of shells and the woodwork of saddles. When any particular logs are required, they are selected by the timber-master, picked up by the travelling crane, hoisted into the railway truck, and conveyed at once to the saw-mills close at hand. On the threshold of the largest mill the logs meet with a grim reception from an immense circular saw 66 inches in diameter, which at once attacks the huge log and separates it as expeditiously as your Eastern soldier divides with his scimitar a floating handkerchief. This formidable instrument traverses a space of 30 feet, and is thus enabled to fix its teeth upon the log at whatever part of the entrance it may chance to lie. This transverse section performed, the divided portions are drawn up by machinery into the saw-frames, the largest of which is capable of receiving a log 4 feet square. Once within the mill's maw, as many saws are put in as are necessary to divide the wood into slabs of the required thickness, and a few minutes suffice to reduce it to planks. From the mills the timber is removed again upon the railroad to the seasoning shed, which covers 4 acres of ground. Here it is allowed to remain for years, so stacked that the air fairly circulates through every portion of the immense mass. The seasoning shed is to the timber master what his wine-cellar is to a _bon vivant_. Here he treasures his bins of nine years old oak as though it were wine of a famous vintage. This he keeps as carefully as a young whist-player keeps his best trumps to the end of the game, but with far more judgment, for old oak is precious beyond price, and cannot be got for love or money at a moment's notice. In the dim shadow of this monster store are also piled the completed articles of land-transport that improve by age. That perpendicular wall of finished woodwork contains the bodies of a thousand carriages which were prepared to remove the British army from the pleateau of Sevastopol in anticipation of an inland campaign; the round towers at the corners are their wheels built up and left to season. Upon the thorough preparation of this part of the carriage its safety depends. The wheels of omnibuses are always allowed to remain two years before they are used, and by permitting them this grace they behave well when at work, generally running over 43,000 miles of ground before they are worn out. The wheels of gun-carriages require to be even better prepared and seasoned, as they have to bear the weight of enormous guns, and have often to run over the roughest ground, without being in any way relieved from sudden shocks by springs.
Upon this store of mellow wood the different factories draw; and the railway which traverses every portion of it speedily conveys the raw material to the benches of the workmen. As the visitor passes up the main avenues of these splendid shops he is bewildered with the activity of the swarms of artizans, the whirling of shafting, and the grating sounds of circular saws. Clouds of sawdust are flying about, and in a moment cover the intruder from head to foot. The immense amount of work sometimes required to be performed at a brief notice has necessitated the introduction of machinery into this branch of handicraft, which heretofore was entirely carried on by manual labour. Let us take the ammunition and powder cases for instance; these have to be provided by the hundred thousand in time of war, and accordingly we find machinery employed in every direction to shorten the work. Circular saws cut the planks into the required size to form the sides and tops and bottoms of the cases; as these issue from the different machines, they are conveyed away upon a circular band of canvas, placed at right angles, to a broader band which runs from one end of the factory to the other: down this band, as on a broad stream, the various pieces sail until they reach the receptacle, from which they are again conveyed to the machinery which is to put them together. Here the drilling, mortising, and dowelling processes are carried on by wholesale with an exactitude and speed which would astonish the joiner of the old school. Upwards of a thousand ammunition boxes formed of cedar, for repelling the wood-eating white ants of the East, are now being prepared daily for the use of the Indian army. The powder-boxes for the navy are made of a hexagonal form, to enable them to fit into the ship's hold like cells of honeycomb. They are carefully lined either with pewter or copper, and when filled are hermetically sealed with wax. The limber-boxes for the field artillery are also made here in large quantities. These receptacles are of a far more elaborate character than the powder-cases, as they are fitted to take all the stores requisite for immediate action, which are stowed away in their different compartments, as neatly as the articles in a gentleman's dressing-case. The common cartridge barrels are shaped out of the solid wood almost as fast as you can look. One machine cuts the oak into staves, curved to the right form; another cuts the edges, so that they may fit in a circle; a fourth turns the head; a fifth receives the staves, which are placed by the attendant on end in the form of a barrel, within the grip of a hydraulic press, claps a hoop on the top and bottom, and with one squeeze completes the operation. By such appliances a piece of solid oak plank is converted within five minutes into a finished barrel. The total produce of carefully-prepared powder-cases during the financial year 1856 was 25,331, and of boxes for ammunition, shell, &c., no less than 287,171. How many barrels can be made at a pinch we do not know, for the machinery is only just put up, but the number must be enormous, and when the visitor witnesses the nimble fingers of machinery galloping over the work, he wonders how the business was ever got through in the old time of the chisel, gouge, hammer, and plane.
In the shops devoted to the manufacture of the gun-carriages and trucks for the land and sea service, skilled artisans are employed, except in the wheel department. The vast strength requisite to support and withstand the recoil of 56, 64, and 98-pounders, necessitates the most solid construction and the best workmanship. Some of these platforms for traversing cannon, made of teak, and bolted and finished at the ends with bright copper bands, look like handsome pieces of furniture rather than ship's gun-carriages. Compared with these ponderous articles, the light constructions fitted for the field-artillery seem like children's playthings. Here they may be met with in every variety and in every stage of progress, so substantially put together that the marvel is that they ever wear out. The sort of succession of earthquakes, however, to which they are subjected in a campaign tells even upon those solid joints, and but few of the gun-carriages employed in the Crimea, although new when they went out, returned fit for further service.
The wheel department is one of the most interesting sights in the Arsenal. Here the most ingenious machinery has been brought together to insure sound and speedy production. Formerly the wheels were made entirely by hand; now they are turned out without the aid of a single skilled wheelwright. What is called the copying process, produces the nave and spokes of the wheel, three or four of which are seen working side by side, and the whole batch under the care of only one man. The circular rim of the wheel, or felloe, is cut out of the solid block by an ingenious ribbon-saw, imported from France. This saw is merely a narrow band of steel, toothed on one edge and running over a wheel like an ordinary leathern band attached to shafting. The exquisite manner in which it fashions the most intricate patterns from thick slabs of wood is really surprising. The felloes, after being thus roughly formed, are stacked to season in a shed by themselves, where they are piled one upon the other in vast pillars, down vistas of which the visitor passes, full of amazement at their number. There are at present in store some sixty thousand of these felloes and an equal number of naves, with their due complement of spokes.
As wheels are required, their component parts are brought to the shop, finished and mortised by machinery, and then lightly adjusted to each other. They are immediately placed within the grip of six hydraulic presses, which are so arranged as to thrust towards a common centre. Directly the wheel is adjusted within them, you hear the hiss of the resistless engines, whose motive power is only a few pints of water; the solid timbers groan, the joints painfully accommodate themselves to each other, and in less time than the process takes to describe, the wheel is lifted out solidly jointed, and only awaiting the tire to travel at once under its superincumbent gun. The wheels of gun, limber, and ammunition carriages are all made of exactly the same size, in order that they may be interchangeable in case of accident.
The effect of the sudden outbreak of the late war was, perhaps, more beneficially felt upon the laboratory department of the Arsenal than any other. Shells, of all the stores of war, were most deficient when the army left for Varna, and the want increased as soon as actual campaigning commenced. The authorities accordingly permitted Captain Boxer to erect a model manufactory of shells in the autumn of 1855. This he did with surprising rapidity, and proved to their satisfaction that these formidable missiles could be manufactured five pounds a ton cheaper than they could be procured from the contractors--an important saving on an article of which several hundred tons had to be supplied per day. The success of this experiment led to the erection of the splendid shell-foundry which is now attached to the Arsenal, and which is capable of turning out sufficient shells for all the armies of the world. Here may be seen the process by which the old scrap iron of the establishment is transformed into the finished shot and shell, and transferred by its own weight to the transport ready to convey it to the seat of war. The smelting process is carried on in a dozen enormous cupola furnaces, into which the iron and coal are heaped indiscriminately. The fierce heat generated by the blast rapidly melts the iron, which is then allowed to flow into the shell-moulds. From the moment the metal enters these moulds, the shell, in war time, never touches the ground till it is landed at its port of debarkation! The rough shells, after they have cooled a little, are forwarded by railway to the cleaning-room, where they are placed in a revolving iron barrel, seven feet long and seven feet in diameter. This machine circulates with rapidity, and the friction of the contained shells speedily cleanses them of all sand and dirt. From this point they roll through all the succeeding stages of their manufacture. A slightly-inclined plane receives them at the cleaning-drum, and conducts them one by one to the machinery fixed in the great room of the laboratory department. Upwards of ten thousand shells per day passed through this apartment during the late war, and were, on their passage, drilled and "bushed," or fitted with the socket made to receive the fuse. This simple fact will alone serve to show how energetically the work was carried on to meet the wants of the great siege. The shells, having rolled through the labyrinth of successive machines which operate upon them, now move onward to the painting department, where they receive a coating of black varnish, which prevents oxidation. Hence they continue their journey right across the open ground of the Arsenal to the pier, under the platform of which they keep their course inside an iron tube which leads immediately into the barge alongside the transport in the river. From this barge, into which they sometimes shoot with a considerable impulse, they roll again, through the open port of the ship, to their appointed place in the hold.
The chief factory of the laboratory department is the great sight of the Arsenal, as here the visitor witnesses twenty or thirty most curious operations, the more important only of which he can stop to examine amid the whirlwind of machinery that everywhere meets his sight and vibrates on his ear. The manufacture of elongated bullets for the rifles affords perhaps the most startling novelty of all. The rifle itself is not a greater advance upon old Brown Bess than is the Minié bullet upon the old one-ounce ball. The apparatus now employed to produce it contrasts as forcibly with the simple bullet-mould formerly in use. Instead of heating the lead to a fluid state, it is simply warmed, in which condition it is subjected to hydraulic pressure in a large iron vessel, which has but one small aperture at the top, of the size of the intended elongated bullet. Out of this hole the metal is driven in the form of a continuous rod of lead, which, as it issues forth, rolls itself upon iron reels as though it were so much cotton! The reels are then attached to a machine which draws the metal between its teeth, bites it off to the required size, moulds the cone, depresses the cup, and condenses the mass at the same moment. These wonderful bullet-makers, when in full work, turn out five hundred elongated bullets a minute, or upwards of a quarter of a million daily. To complete the missile, the cup has to be filled with a boxwood plug to ensure its proper expansion whilst in the act of leaving the gun. Here again a partially self-acting apparatus is called into play, one lad being sufficient to feed several machines with square rods of wood, the ends of which are embraced by a circular hollow cutter, which instantly reduces them to the right conical form, and then cuts them off. These little plugs are produced at the same rate as the bullets.
An equally interesting operation is the manufacture of percussion caps. The first process in this light and delicate work is the stamping of sheet-copper into pieces of the required form to make the caps. For this purpose the copper is placed beneath the punch of the machine, and immediately it is put in action, small crosses of metal are seen to fall from it into a box in a continual stream, whilst the sheet itself is transposed by the punching process into a kind of trellis-work. These crosses of equilateral arms are now transferred to another machine, which instantly doubles up the four arms, and at the same time so rounds them, that they form a tube just the size of the gun-nipple, and by a third operation of the same machine a kind of rim is given to the free end, which makes the cap take the form of a hat. This rim marks the difference between the military and the ordinary percussion cap--the soldier, in the hurry and confusion of battle, requiring this guide to enable him to apply the proper end to the nipple. The metal portion of the cap completed, it is transferred to a man who fills it with detonating powder. As this is a very dangerous process, the artisan upon whom the duty devolves sits apart from the boys, who perform all the other work, for fear of an accidental explosion. To fix the fine dust in the cap, a very pretty machine is employed, which gets through its work with extreme rapidity. The caps are placed in regular rows in a frame-work, to which is attached a lever, armed with as many fine points as there are caps in a single row. The motion given by the hand alternately dips these fine points into a tray of varnish, and then into each succeeding line of caps. When the varnish is dry, the powder is fixed and effectually protected from the effects of damp. The caps are now finished, and are ready for the boy who counts and packs them. Machinery is even employed to perform the part of cocker, and with one gentle shake does the brain-work of many minutes. A frame is constructed, into which fit a number of small trays, each tray being pierced with seventy-five holes. Upon this frame the boy heaps up a few handfuls of caps, and then gives the whole machine a few jerks, and when he sees that every hole is filled with a cap, he lifts out each separate tray and empties it into appropriate boxes. In this manner he is enabled, with extreme rapidity, to count out his parcels of seventy-five caps, the regulation number served to each soldier with sixty rounds of ball-cartridge--the excess of fifteen being allowed for loss in the flurry of action. The British soldier's clumsy fingers are by no means well calculated for handling and adjusting such light articles.
Equally curious with the production of caps is the manufacture of cartridge-bags. The visitor, as he mounts the stairs to the upper floor of a large building close at hand, is made aware by the hum and collision of shrill young voices that he is approaching a hive of children, and as he rears his head above the banisters, he finds that he is in the midst of a little army of urchins, varying from eight to fourteen years of age, seated at long benches rolling up paper cartridge-bags. This process requires some little nicety, as each bag is made up of three distinct papers of different sizes and shapes, which have to be neatly adjusted round a roller one upon another. By long practice some of these little fellows complete the operation in a surprisingly short space of time--rolling, twisting in the end, tying, and drawing it from the rod almost as quickly as you can look at them, the swaying of the body during the operation giving to the entire mass of eight hundred children a most extraordinary aggregate movement as the room is surveyed from one end to the other. Some boys are infinitely more nimble-fingered than others, and the sharpest earn eight or nine shillings a-week at the work.
Nimble as their little fingers ply, however, the hands of machinery laugh them to scorn. In the room below we note as we descend strange wheel-like frames revolving horizontally, and others working up and down into tanks of paper pulp. These are the new machines destined to supplant the little children over-head, and to hush the ceaseless hum of their human labour. Throughout the entire range of the Arsenal there is no sight more interesting than is exhibited by these machines, the _modus operandi_ of which is extremely simple. Circles of brass tubing have short upright tubes inserted into them at regular distances. These upright tubes, or fingers, are pierced with fine holes, and the whole apparatus is attached to an exhausting-pump. Worsted mittens are fitted to the fingers, and when all is ready, the Briarean hand is dipped into the bath of pulp, the air in the tubes is withdrawn, the liquid necessarily rushes towards the fingers, and the water passing through, leaves the pulp adherent to the mitten. The process is instantaneous, hand after hand drops into the trough, gloves its fingers with pulp, and rises with a thousand cartridges in its grasp, quicker than one of the boys up stairs has finished a single bag. The process is not complete, however, until they are dry. Each mitten is removed from its metal finger, and placed on a similar one heated with steam. In ten minutes the desiccating process is finished, and the cartridge-bag is removed, a far more perfect instrument for its deadly purpose than that which is made up stairs by hand. The hint for this beautiful machine was taken from the apparatus employed for making conical seamless sugar-bags without the intervention of the paper maker--so diverse are the developments which may spring from the same idea. Of these small-arm cartridge-bags, 400,000 can be manufactured in a day of ten hours; but as each cartridge is composed of a double envelope, one fitting within the other, in order to separate the conical ball from the powder, the product furnishes 200,000 cartridges--an enormous quantity, but scarcely equal to the demand of such campaigners as Havelock, whose men, day by day, consumed their sixty rounds per head. At first sight it seems strange to find the Government turned paper makers, and the visitor may think that these bags could be obtained, as the sugar-bags are by the grocers, from the private manufacturer, but it is absolutely necessary that they should be produced side by side with their deadly contents. They are far more delicate things to maintain in their integrity than even wafer-biscuits, which they very much resemble, and they are required in such enormous numbers, that any mechanical impediment, such as crushing, interposed to the filling of them with powder and ball, would add immensely to the expense. The pressure in packing necessary to convey them to the Arsenal would flatten, and hence destroy them.
But where, asks the visitor, is the small-arms factory for the construction of those far-famed rifles which prevented a disaster at Inkermann, and at once doubled the effective power of the steadiest infantry of Europe? And well may he ask the question, for what more natural place for this important manufacture than in connexion with kindred Government establishments? When the War Office decided upon erecting a factory to meet the sudden demands of the war, it was proposed by the Inspector of Machinery to plant it within the walls of the Arsenal; but the authorities, for some reason best known to themselves, decided otherwise, and it was accordingly taken to Enfield Lock, which is twelve miles from London on the Eastern Counties Railway, and where they had before a small establishment for the repair and manufacture of a limited number of muskets. The traveller who gets out at the factory station finds himself at once in a road which leads him into a flat country laced with streams, where Paul Potter might have found a study at every turn. Here, amid flocks and herds peacefully grazing, or standing in the shadows of the pollard willows, he espies the tall chimneys of the Enfield factory, looking like a stray fragment of Manchester that had wandered out of its way. In all England a more absurd spot for it could not have been chosen.
The establishment, however, is so worthy of a minute inspection, that we will proceed to give a general view of the whole. The threshold of the manufacturing process is the smithery, where the foreman presides to deliver out the raw material and receive in return the work done. To each smith is issued the particular size of bar iron or steel required for the article he works upon. Opening out of this shop is the smithery itself, with its fifty-five forges, together with steam hammers, hoppers, rider hammers, and other contrivances by which our modern Vulcan economises labour. In this department all the iron and steel work of the lock and stock are moulded, for the ordinary method of forging conveys a very inadequate idea of the manner in which the material is here manipulated. Every sportsman knows that the lock of a gun is made up of many small pieces of irregular form. To forge these with the hammer alone would be far too expensive a process, as it would require highly-skilled labour, nor even then would it be possible to produce the different pieces of exactly the same size, so that any one may fit into any other with perfect accuracy when the gun is ultimately put together. To accomplish this end, the essential principle of the manufacture, each smith with his helper takes in hand a particular piece of work. One man, for instance, makes hammers, or cocks, as sportsmen call them. The irregular form of this part of the lock would seem to preclude the possibility of its being made by the hundred-thousand, each one being the counterpart of its brother to the thousandth of an inch. Yet this is done, and with an ease that appears astonishing to the beholder. Let us watch the brawny smith before us. He draws a rod from the fire at white heat, lays it upon an indented part of his anvil, and, together with his mate, deals alternate blows in half a dozen different directions, and produces in a few seconds an irregular mass, which we see bears a resemblance to the indentation in the anvil, which, on closer inspection, we find to be a rude matrix of a guncock. This is the first process, called swaging. These two men go on from one year's end to another, giving alternate light and heavy blows and taps on all sides of the metal. These blows, though sometimes delivered through a swinging circle of eight or ten feet, fall upon exactly the same spot, for practice so nicely co-ordinates the muscles as to produce a motion as exact as that which draws from the bow of a Paganini the same delicate note for any number of times in succession. The cock thus swaged, the smith stamps his initials upon it, and transfers it to another smith, who works with a steam-hammer, on which is a steel die of the exact form it is required to take. A single blow of this instrument gives it its final form, leaving the superfluous metal in the shape of a thin film, where it has been squeezed into the opening between the dies, which is cut off by a subsequent stamping process. By this method of swaging and stamping, the lock-plate, bridle, cock, sear, trigger, sightleaf, breech-screw, and swivel are formed so perfectly, that the tool is scarcely required to touch them afterwards.
Those parts of the lock made of steel, such as the mainspring, searspring and tumbler, are simply swaged, the stamping process being omitted on account of the sudden blow tending to break the grain and thus destroy the elasticity of the metal.
A curious operation of the smithery is the bayonet forging. The bars for bayonet-work are never forged of such uniform width as to allow the smith to cut off to a nicety the length he requires. In order to rectify this difficulty, and enable him to tell how much will serve his purpose, he is provided with a water-gauge, or tube filled with a given quantity of water; into this the rod is plunged, and withdrawn when the fluid reaches the top of the gauge. By this expedient the iron, however irregular in form, is measured accurately by the displacement of the water. When the bar is withdrawn, the smith cuts it off at the watermark, and his mate thrusts it into the forge fire. Whilst this is going on, the visitor becomes conscious of a strange machine close at hand, which perpetually gnashes together a mouthful of hardened steel teeth; this is that useful instrument called the rider hammer. These teeth bear upon their upper and under surfaces grooves of the form the iron bar is required to take. The short white-heated bit of bar is thrust in, and by a series of nabs is instantly lengthened a couple of inches; the next tooth still further attenuates it, the third forces it into the triangular form, and a fourth and fifth reduce it to the graduated length required: thus the blade of this terrible weapon is rough-drawn. The ring by which it is attached to the barrel of the musket is forged separately, and welded to the shank at right angles. These are the first of at least seventy-six distinct operations before the weapon is fitted to fulfil its appointed design, that of making the ugliest and most irreparable wound possible in the human corpus. The work done, it is returned to the foreman, whose first duty is to see that the material with which the man has been debited has wrought into the requisite number of pieces; if it falls short the waste is charged to him. The next scrutiny is into the quality of the work, and the last and not the least important inquiry is, does it gauge? Unless the work passes all these ordeals it is rejected, and the person in fault is known by the distinguishing mark of the smith who prepared it. In some cases, as in the making of the bands which bind the barrel to the stock, this mark is ground off in passing through one of the presses; but is immediately restored, that the work may be traced to the artisan who constructed it. The effect of thus fixing the responsibility of every single thing manufactured upon the maker is immense, and induces habits of carefulness such as are seldom seen in ordinary workmen. The foreman now issues the different pieces to the finishers, who convey them to the annealing room, where they are rendered soft for working by heat, and cleaned of their scale or oxide, which would otherwise injure the tool, by means of dilute sulphuric acid.
The barrel is welded and finished in a separate factory. The piece of metal out of which the gradually tapering tube is ultimately fashioned seems to bear no relation to such a form. You see the smith take a small plate of quarter-inch iron, about a foot long by a few inches wide, heat it to a welding heat, and then place it between the lips of a rolling mill, with grooved instead of flat rollers, and in an instant it comes out a tube. It has next to be drawn out to the requisite length and tapered, which is done by passing it through a series of mills, each succeeding one being grooved smaller than the preceding. The bore is kept hollow during the operation by a central iron rod. The breech piece is welded on by a single blow of a steam-hammer, and the process of turning the bore begins. Four barrels are acted upon by one lathe, and the first operation is performed in fifteen minutes. Only a slight cutting is made each time, and the barrel has to be submitted to the action of many different boring instruments until the exact size, ·577 of an inch, is attained. The outside is now turned, the tool taking off the superfluous metal in one continuous ringlet of iron.
It now undergoes the most delicate process of all, that of being "viewed." The viewer, who is a highly-skilled workman, with an exceedingly accurate eye, puts himself opposite a gas-lamp, about thirty feet distance, and which has a dark shade on its upper side. Towards this object he directs the barrel so as to bring the dark edge half-way across his sight as he looks through the bore. By this device he is enabled to direct a ray of light with a defined edge down the tube, and by turning the barrel round, instantly detects the slightest deviation from the straight line. As the smoothest-looking sea is discovered to be a mass of dimpling ripples--(the Greek poet's "infinite laughings of the sea")--when the setting sun throws a golden shaft across its bosom, so the mathematically straight lines of light gauge the inequalities of the rifle bore in a more exact manner than any instrument that has yet been invented. When any irregularities are discovered, the viewer taps the barrel with a fine hammer on a small anvil, and repeats the operation until the tube is perfectly true. Upon this depends the correct shooting of the gun, inasmuch as the least crook near the end of the bore would send a bullet far on one side of the mark long before it had attained the full range of 800 yards, to which the Enfield rifle is sighted. The rifling of the barrel in three groves is performed by fixing it in a lathe, and driving the cutter through it in a spiral direction.
In entering the finishing room, a noble apartment, 200 feet square, the visitor cannot fail to be struck with astonishment at the scene this vast workshop presents. He looks through a mass of wheels, levers, cranks, and shafts, which fill the space from wall to wall, every foot alive with iron and human limbs, and the whole superficies seeming to writhe and wrestle like a cluster of worms. Although confusion looks triumphant to the casual eye, the utmost order prevails. On one side of the room, at regular intervals, small inclosed offices, with glazed fronts, are placed against the wall, a little above the level of the floor. These are devoted to the foremen of the different divisions into which the work is separated. Each of these functionaries from his eyrie rakes the long avenues or streets of machines, with their attendant workmen, which run in parallel lines across the room. The first avenue is devoted to bayonets; then come in the following order the divisions allocated to furniture, screw, sight, lock, and stock. The work is so managed that all the different parts keep pace together, and are finished in the required proportions; or in other words, those pieces which are but slowly produced have allotted to them a greater number of machines. By this arrangement all the requisite items are brought at the same moment to the workmen who put them together in the finished article. The fifty-six pieces of which the rifle is composed work their way up one street of machinery and down another, constantly following on from right to left on their way towards the top of the room. Many of these pieces are passed through upwards of twenty different machines, each one performing some simple and definite action, by which means an accuracy is obtained that the most skilful gunmaker could never equal by hand.
The diversity of cutting-tools in these different machines strikes the observer with astonishment; the oddest shapes, the most unlikely-looking forms, proving admirably adapted for the purposes they are intended to accomplish. Many of these work automatically--that is, they engage and disengage themselves; setting to work only when they are fed with material, and, when their rodent-like teeth have gnawed away as much metal as is requisite, they stop of their own accord. The effect of this is so extraordinary, that it almost seems as if those bright limbs of iron, which stop and move on without human agency, must be directed by some sort of metallic brain. The most common form of tool employed is what is termed the circular cutter or milling-tool, which is constructed to fit every class of work. These cutters will continue serviceable for months without requiring to be sharpened, in consequence of each being restricted to its own limited sphere. The amount of thought employed in the construction of many of these machines must have been immense, and when they were completed, two-thirds of the manufacturing difficulty was overcome, and the musket more than half made. A most ingenious machine, the parent of a numerous progeny, was, many years ago, invented by an Englishman, and applied to copying the fine lines of statuary, and transferring them to ivory and other materials. The applicability of this instrument to the production of the irregular forms in the gun trade was first perceived by our cousins across the Atlantic, and for many years they have employed it for the rapid and true production of many parts of the musket, whilst our own manufacturers in London and Birmingham have been content to execute the same work, laboriously and expensively, by hand labour. The copying machines now at Enfield have been imported direct from America. They are principally employed in fashioning gun-stocks. They convert the rough slabs of walnut-wood, just outlined in the proper form, which come from France, Belgium and Italy, into the finished article, with all its grooves, holes, and beddings for lock and barrel. This extraordinary apparatus may be said to work with two hands: the one feeling the outline of the pattern to be copied, the other directing a tool uniformly with it and cutting the object to the required form. Let us, for example, take the machine that hollows out the lock-bedding in the stock. Not only are the outlines of the most irregular form, but they are sunk to three different levels, and it would almost seem impossible that a machine should excavate so complex a bedding with minute accuracy. Nevertheless, it is done in a few minutes by an apparatus, which revolves and brings, one after the other, some new tool into play according to the work to be done. Whilst the operation is going on, a little blower clears out the chips as cleverly as though the machine had human breath. The different portions of the gun completed, they are, for the last time, gauged, and passed on to the extreme end bench of the factory, near the west door, where the "assembler," as he is termed, receives them in different bins, from which he takes the part he requires and sets up the gun. As there is no necessity for special fitting, this process is performed with remarkable rapidity, seven minutes being sufficient to combine all the different parts, which have never been near each other before--lock, stock, ramrod, and bayonet--into the complete weapon. They now pass out of the western door, packed in cases, and are taken to the proving-ground, where they are tested with high charges and their range and accuracy duly examined; and so perfect is the finish, that not one in a thousand fails to stand the trying ordeal. They are now transferred by water to the Armoury at the Tower, ready for service in the field.
The Enfield rifle was adopted for the public service in the year 1853, and is at the present moment the best infantry musket in Europe. There is still room, however, as Mr. Whitworth has shown, for improvement in the barrel. His rifle propels a bullet both farther and with greater accuracy, in consequence of the greater care he bestows upon the barrel, which, instead of being welded, is bored, at a great cost, out of the solid metal. Its diameter also being smaller, the bullet encounters a less resistance in the air during its flight. There is no reason why the smaller bore should not be substituted for that of the Enfield rifle, when this arm would be perfect. The difficulty the ablest minds experience in getting out of an old groove was exemplified by the late Duke of Wellington with respect to this question of the size of bore. His Grace was obstinately wedded to Brown Bess, whose crushing fire, so superior to that of the enemy, he had witnessed in his Peninsular campaigns, and which he erroneously ascribed to the excellent quality of the arm instead of to the steadiness of the men--mistaking, in fact, a moral for a physical excellence. The longer the Commander-in-Chief lived, the firmer his faith in the large smooth bore, and the necessity for making a big hole in the enemy. When the rifle-musket of 1851 replaced this old arm, the large bore was still retained, and the consequence was, that the bullet, being elongated, was heavier than when round, and the soldier had to carry a missile of 696 grains weight, instead of 490 grains. The bore of the Enfield rifle pattern of 1853 was very properly reduced, and the Prichett expanding bullet, of 530 grains, now carries its deadly weight in its length. Though the wound it gives is not so large as that inflicted by the old ball, it makes up for deficiency by its power of penetration. An officer who was at the taking of the rifle-pits in the quarry before Sevastopol informs us that a brother-officer was shot through the side by a Russian Minié bullet, which afterwards passed through an ass, and his two panniers of water, and did not stop in its career till it had broken a man's arm at some distance off! Its deadly aim at vast distances, which made it the dread of the sepoys, who termed it "the gun that kills without making any sound," contrasts strangely with the performances of Brown Bess of old, which at any range beyond a hundred yards was so uncertain in its aim that it has been calculated that the soldier shot away the weight in lead of every man that he hit.
Before the breaking out of the war, our stores were hampered with small-arms of all sizes and patterns. There were, at home and abroad, no less than 109,725 flint-lock muskets, of fifteen different patterns, and 107,000 smooth-bore, percussion-lock muskets, of eight different patterns. Very many of these were in service a few years ago; and as their bores were all dissimilar, it often happened that the soldiers were provided with cartridges that would not fit their guns. In peace little difficulties of this kind are of no moment, but they are of the utmost importance in the time of war. At the battle of Waterloo, the Brunswickers, who held Hougoumont, were, for a short time, rendered helpless, in consequence of cartridges having been sent to them that did not fit their muskets. A battle, which, according to Professor Creasey, ranks among the six decisive combats of the world, might thus have been lost on account of the misfit of a cartridge. The necessity of preventing the possible recurrence of such mischances induced the authorities, at the breaking out of the Russian war, to make the bore of all muskets used by the different branches of the service uniform with that of the Enfield rifle. A thousand of these weapons can at present be completed in a week--a number which appears large, but which is in reality far beneath the real wants of the army. The private manufacturers of small-arms in Birmingham denounced the establishment of this factory, on the plea that Government were not warranted in fabricating goods which the private trade of the country were capable of producing--an assertion which the Crimean war totally disproved, as the authorities were so pressed for rifles that they had to go to France,[26] Belgium, and the United States for supplies, and at one time contemplated giving an order for 350,000 rifles at Liége. The military rifle, like the shell, being a special article required only by the army, the demand for it in large numbers is not constant, and hence the low condition of the mechanical power brought to bear upon it by the trade. The gunmakers of Birmingham have depended upon skilled labour for the production of the different parts of a musket, and thus labour, in times of pressure, becomes exorbitantly costly, to the embarrassment and loss of the public service. It was this which led the Government to introduce machinery into the manufacture--a thing the trade declared impossible, but which they now see is not only possible but profitable, since the same musket for which they charged 4_l._ 10_s._ is now made of a superior quality by the Government for 3_l._ 15_s._ The experiment must be of the greatest importance to the Birmingham gun trade, which, through its own inherent vices, was fast yielding to the superior ingenuity of America and Belgium, and which can only regain its old position by taking a lesson from the organized mechanical resources of the Enfield Lock manufactory. The private manufacturers need not fear that Enfield will monopolize even Government work, the demands of the service being far beyond its productive powers. As the Ordnance supplies rifles to our army in India, as well as to the home and colonial force, no less than 400,000 are required for the infantry and marines alone: a number which has to be replaced every twelve years, even in times of peace. In active service the destruction is immense; and now the cycle of war has returned, the annual 50,000 rifles turned out by the royal factory will prove but a small instalment of the vast store of arms that England will require.
At Waltham Abbey, not half an hour's walk from Enfield Lock, is situated the only establishment for the manufacture of powder which the Government possesses. Here dispersion, instead of concentration, is the order of the day. The necessity for complete isolation causes the factories to be distributed over a very large space of ground, and the visitor has to walk from workshop to workshop through groves and avenues of willow and alder, as though he were visiting dispersed farm-buildings rather than the different departments of the same manufacturing process. There are not perhaps more than a dozen detached buildings in the whole establishment, yet these are scattered over upwards of fifty acres of ground. To such an extent do meadows and woods and meandering canals predominate, that the idea of being in a powder-mill is entirely lost in the impression that you are walking in a Dutch landscape. The visitor who enters the great gates of the mill, impressed with a belief in the dangerous nature of the ground he is treading, is somewhat startled on finding a steam-engine at work on the very threshold of the factory, and a tall chimney smoking its pipe in what he supposed to be the vicinity of hundreds of barrels of gunpowder; but in reality these boilers and furnaces are placed many hundred feet from the mixing-houses. The English Government powder is composed of seventy-five parts of saltpetre, fifteen parts of charcoal, and ten of sulphur. The ingredients, being thoroughly powdered, prepared, and purified, are submitted to the action of a machine, which completely mixes them. The product is then conveyed by a covered boat, very much like an aldermanic gondola in mourning, some hundred yards along the canal to the incorporating houses, where the most important process of the manufacture is carried on, and where the danger of an explosion first commences. The incorporating machine is nothing more than a couple of runners or huge wheels, weighing four and a half tons each, which revolve one after another on their edges in a bed of metal supplied with a deep wooden rim, which gives it much the appearance of a huge kitchen candlestick. Into this dish the black powder is placed, together with a little water, which varies in quantity, from four pints in winter, when the atmosphere is charged with moisture, to ten in the summer, when the desiccating quality of the air is very great. For four hours this pasty mass is crushed, ground, and mixed by the action of the runners. The precautions taken against explosion teach the visitor the dangerous nature of the ground he is treading. Before he puts his feet across the threshold he must encase them in leathern boots huge enough to fit Polyphemus, and guiltless of iron in any form whatever; even his umbrella or stick is snatched from him, lest the ferrule should strike fire, or accidentally drop among any part of the machinery whilst at work. The machinery is even protected against itself. In order to avoid the possibility of the linch-pins which confine the cylinders to their axles falling down, and by the action of "skidding" the runner, producing so much friction as to cause an explosion, receptacles are formed to catch them in their fall. As small pieces of grit, the natural enemy of the powder-maker, might prove dangerous if mixed with any of the "charges," the axle sockets of nearly all the wheels are constructed to expand, so as to allow any hard foreign body to pass through just in the same manner in which the fine jaws of the larger serpents are loosely hinged, to enable them to get over at one gulp such a bulky morsel as a full-grown rabbit.
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Curiosities of CivilizationChapter XII: Part 12
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