The defect to which we have referred was almost the only remaining imperfection in the lathe, and Mr. Clement overcame it by making the machine self-regulating; so that, whatever might be the situation of the cutter, equal quantities of metal should pass over it in equal times,—the speed at the centre not exceeding that suited to the work at the circumference,—while the workman was enabled to convert the varying rate of the mandrill into a uniform one whenever he chose. Thus the expedients of wheels, riggers, and drums, of different diameters, by which it had been endeavoured to alter the speed of the lathe-mandrill, according to the hardness of the metal and the diameter of the thing to be turned, were effectually disposed of. These, though answering very well where cylinders of equal diameter had to be bored, and a uniform motion was all that was required, were found very inefficient where a Plane surface had to be turned; and it was in such cases that Mr. Clement's lathe was found so valuable. By its means surfaces of unrivalled correctness were produced, and the slide-lathe, so improved, became recognised and adopted as the most accurate and extensively applicable of all machine-tools.
The year after Mr. Clement brought out his improved turning-lathe, he added to it his self-adjusting double driving centre-chuck, for which the Society of Arts awarded him their silver medal in 1828. In introducing this invention to the notice of the Society, Mr. Clement said, "Although I have been in the habit of turning and making turning-lathes and other machinery for upwards of thirty-five years, and have examined the best turning-lathes in the principal manufactories throughout Great Britain, I find it universally regretted by all practical men that they cannot turn anything perfectly true between the centres of the lathe." It was found by experience, that there was a degree of eccentricity, and consequently of imperfection, in the figure of any long cylinder turned while suspended between the centres of the lathe, and made to revolve by the action of a single driver. Under such circumstances the pressure of the tool tended to force the work out of the right line and to distribute the strain between the driver and the adjacent centre, so that one end of the cylinder became eccentric with respect to the other. By Mr. Clement's invention of the two-armed driver, which was self-adjusting, the strain was taken from the centre and divided between the two arms, which being equidistant from the centre, effectually corrected all eccentricity in the work. This invention was found of great importance in ensuring the true turning of large machinery, which before had been found a matter of considerable difficulty.
In the same year (1828) Mr. Clement began the making of fluted taps and dies, and he established a mechanical practice with reference to the pitch of the screw, which proved of the greatest importance in the economics of manufacture. Before his time, each mechanical engineer adopted a thread of his own; so that when a piece of work came under repair, the screw-hob had usually to be drilled out, and a new thread was introduced according to the usage which prevailed in the shop in which the work was executed. Mr. Clement saw a great waste of labour in this practice, and he promulgated the idea that every screw of a particular length ought to be furnished with its appointed number of threads of a settled pitch. Taking the inch as the basis of his calculations, he determined the number of threads in each case; and the practice thus initiated by him, recommended as it was by convenience and economy, was very shortly adopted throughout the trade. It may be mentioned that one of Clement's ablest journeymen, Mr. Whitworth, has, since his time, been mainly instrumental in establishing the settled practice; and Whitworth's thread (initiated by Clement) has become recognised throughout the mechanical world. To carry out his idea, Clement invented his screw-engine lathe, with gearing, mandrill, and sliding-table wheel-work, by means of which he first cut the inside screw-tools from the left-handed hobs—the reverse mode having before been adopted,—while in shaping machines he was the first to use the revolving cutter attached to the slide rest. Then, in 1828, he fluted the taps for the first time with a revolving cutter,—other makers having up to that time only notched them. Among his other inventions in screws may be mentioned his headless tap, which, according to Mr. Nasmyth, is so valuable an invention, that, "if he had done nothing else, it ought to immortalize him among mechanics. It passed right through the hole to be tapped, and was thus enabled to do the duty of three ordinary screws." By these improvements much greater precision was secured in the manufacture of tools and machinery, accompanied by a greatly reduced cost of production; the results of which are felt to this day.
Another of Mr. Clement's ingenious inventions was his Planing Machine, by means of which metal plates of large dimensions were planed with perfect truth and finished with beautiful accuracy. There is perhaps scarcely a machine about which there has been more controversy than this; and we do not pretend to be able to determine the respective merits of the many able mechanics who have had a hand in its invention. It is exceedingly probable that others besides Clement worked out the problem in their own way, by independent methods; and this is confirmed by the circumstance that though the results achieved by the respective inventors were the same, the methods employed by them were in many respects different. As regards Clement, we find that previous to the year 1820 he had a machine in regular use for planing the triangular bars of lathes and the sides of weaving-looms. This instrument was found so useful and so economical in its working, that Clement proceeded to elaborate a planing machine of a more complete kind, which he finished and set to work in the year 1825. He prepared no model of it, but made it direct from the working drawings; and it was so nicely constructed, that when put together it went without a hitch, and has continued steadily working for more than thirty years down to the present day.
Clement took out no patent for his invention, relying for protection mainly on his own and his workmen's skill in using it. We therefore find no specification of his machine at the Patent Office, as in the case of most other capital inventions; but a very complete account of it is to be found in the Transactions of the Society of Arts for 1832, as described by Mr. Varley. The practical value of the Planing Machine induced the Society to apply to Mr. Clement for liberty to publish a full description of it; and Mr. Varley's paper was the result.[3] It may be briefly stated that this engineer's plane differs greatly from the carpenter's plane, the cutter of which is only allowed to project so far as to admit of a thin shaving to be sliced off,—the plane working flat in proportion to the width of the tool, and its length and straightness preventing the cutter from descending into any hollows in the wood. The engineer's plane more resembles the turning-lathe, of which indeed it is but a modification, working up on the same principle, on flat surfaces. The tools or cutters in Clement's machine were similar to those used in the lathe, varying in like manner, but performing their work in right lines,—the tool being stationary and the work moving under it, the tool only travelling when making lateral cuts. To save time two cutters were mounted, one to cut the work while going, the other while returning, both being so arranged and held as to be presented to the work in the firmest manner, and with the least possible friction. The bed of the machine, on which the work was laid, passed under the cutters on perfectly true rollers or wheels, lodged and held in their bearings as accurately as the best mandrill could be, and having set-screws acting against their ends totally preventing all end-motion. The machine was bedded on a massive and solid foundation of masonry in heavy blocks, the support at all points being so complete as effectually to destroy all tendency to vibration, with the object of securing full, round, and quiet cuts. The rollers on which the planing-machine travelled were so true, that Clement himself used to say of them, "If you were to put but a paper shaving under one of the rollers, it would at once stop all the rest." Nor was this any exaggeration—the entire mechanism, notwithstanding its great size, being as true and accurate as that of a watch.
By an ingenious adaptation of the apparatus, which will also be found described in the Society of Arts paper, the planing machine might be fitted with a lathe-bed, either to hold two centres, or a head with a suitable mandrill. When so fitted, the machine was enabled to do the work of a turning-lathe, though in a different way, cutting cylinders or cones in their longitudinal direction perfectly straight, as well as solids or prisms of any angle, either by the longitudinal or lateral motion of the cutter; whilst by making the work revolve, it might be turned as in any other lathe. This ingenious machine, as contrived by Mr. Clement, therefore represented a complete union of the turning-lathe with the planing machine and dividing engine, by which turning of the most complicated kind might readily be executed. For ten years after it was set in motion, Clement's was the only machine of the sort available for planing large work; and being consequently very much in request, it was often kept going night and day,—the earnings by the planing machine alone during that time forming the principal income of its inventor. As it took in a piece of work six feet square, and as his charge for planing was three-halfpence the square inch, or eighteen shillings the square foot, he could thus earn by his machine alone some ten pounds for every day's work of twelve hours. We may add that since planing machines in various forms have become common in mechanical workshops, the cost of planing does not amount to more than three-halfpence the square foot.
The excellence of Mr. Clement's tools, and his well-known skill in designing and executing work requiring unusual accuracy and finish, led to his being employed by Mr. Babbage to make his celebrated Calculating or Difference Engine. The contrivance of a machine that should work out complicated sums in arithmetic with perfect precision, was, as may readily be imagined, one of the most difficult feats of the mechanical intellect. To do this was in an especial sense to stamp matter with the impress of mind, and render it subservient to the highest thinking faculty. Attempts had been made at an early period to perform arithmetical calculations by mechanical aids more rapidly and precisely than it was possible to do by the operations of the individual mind. The preparation of arithmetical tables of high numbers involved a vast deal of labour, and even with the greatest care errors were unavoidable and numerous. Thus in a multipltcation-table prepared by a man so eminent as Dr. Hutton for the Board of Longitude, no fewer than forty errors were discovered in a single page taken at random. In the tables of the Nautical Almanac, where the greatest possible precision was desirable and necessary, more than five hundred errors were detected by one person; and the Tables of the Board of Longitude were found equally incorrect. But such errors were impossible to be avoided so long as the ordinary modes of calculating, transcribing, and printing continued in use.
The earliest and simplest form of calculating apparatus was that employed by the schoolboys of ancient Greece, called the Abacus; consisting of a smooth board with a narrow rim, on which they were taught to compute by means of progressive rows of pebbles, bits of bone or ivory, or pieces of silver coin, used as counters. The same board, strewn over with sand, was used for teaching the rudiments of writing and the principles of geometry. The Romans subsequently adopted the Abacus, dividing it by means of perpendicular lines or bars, and from the designation of calculus which they gave to each pebble or counter employed on the board, we have derived our English word to calculate. The same instrument continued to be employed during the middle ages, and the table used by the English Court of Exchequer was but a modified form of the Greek Abacus, the chequered lines across it giving the designation to the Court, which still survives. Tallies, from the French word tailler to cut, were another of the mechanical methods employed to record computations, though in a very rude way. Step by step improvements were made; the most important being that invented by Napier of Merchiston, the inventor of logarithms, commonly called Napier's bones, consisting of a number of rods divided into ten equal squares and numbered, so that the whole when placed together formed the common multiplication table. By these means various operations in multiplication and division were performed. Sir Samuel Morland, Gunter, and Lamb introduced other contrivances, applicable to trigonometry; Gunter's scale being still in common use. The calculating machines of Gersten and Pascal were of a different kind, working out arithmetical calculations by means of trains of wheels and other arrangements; and that contrived by Lord Stanhope for the purpose of verifying his calculations with respect to the National Debt was of like character. But none of these will bear for a moment to be compared with the machine designed by Mr. Babbage for performing arithmetical calculations and mathematical analyses, as well as for recording the calculations when made, thereby getting rid entirely of individual error in the operations of calculation, transcription, and printing.
The French government, in their desire to promote the extension of the decimal system, had ordered the construction of logarithmical tables of vast extent; but the great labour and expense involved in the undertaking prevented the design from being carried out. It was reserved for Mr. Babbage to develope the idea by means of a machine which he called the Difference Engine. This machine is of so complicated a character that it would be impossible for us to give any intelligible description of it in words. Although Dr. Lardner was unrivalled in the art of describing mechanism, he occupied twenty-five pages of the 'Edinburgh Review' (vol.59) in endeavouring to describe its action, and there were several features in it which he gave up as hopeless. Some parts of the apparatus and modes of action are indeed extraordinary and perhaps none more so than that for ensuring accuracy in the calculated results,—the machine actually correcting itself, and rubbing itself back into accuracy, when the disposition to err occurs, by the friction of the adjacent machinery! When an error is made, the wheels become locked and refuse to proceed; thus the machine must go rightly or not at all,—an arrangement as nearly resembling volition as anything that brass and steel are likely to accomplish.
This intricate subject was taken up by Mr. Babbage in 1821, when he undertook to superintend for the British government the construction of a machine for calculating and printing mathematical and astronomical tables. The model first constructed to illustrate the nature of his invention produced figures at the rate of 44 a minute. In 1823 the Royal Society was requested to report upon the invention, and after full inquiry the committee recommended it as one highly deserving of public encouragement. A sum of 1500L. was then placed at Mr. Babbage's disposal by the Lords of the Treasury for the purpose of enabling him to perfect his invention. It was at this time that he engaged Mr. Clement as draughtsman and mechanic to embody his ideas in a working machine. Numerous tools were expressly contrived by the latter for executing the several parts, and workmen were specially educated for the purpose of using them. Some idea of the elaborate character of the drawings may be formed from the fact that those required for the calculating machinery alone—not to mention the printing machinery, which was almost equally elaborate—covered not less than four hundred square feet of surface! The cost of executing the calculating machine was of course very great, and the progress of the work was necessarily slow. The consequence was that the government first became impatient, and then began to grumble at the expense. At the end of seven years the engineer's bills alone were found to amount to nearly 7200L., and Mr. Babbage's costs out of pocket to 7000L. more. In order to make more satisfactory progress, it was determined to remove the works to the neighbourhood of Mr. Babbage's own residence; but as Clement's claims for conducting the operations in the new premises were thought exorbitant, and as he himself considered that the work did not yield him the average profit of ordinary employment in his own trade, he eventually withdrew from the enterprise, taking with him the tools which he had constructed for executing the machine. The government also shortly after withdrew from it, and from that time the scheme was suspended, the Calculating Engine remaining a beautiful but unfinished fragment of a great work. Though originally intended to go as far as twenty figures, it was only completed to the extent of being capable of calculating to the depth of five figures, and two orders of differences; and only a small part of the proposed printing machinery was ever made. The engine was placed in the museum of King's College in 1843, enclosed in a glass case, until the year 1862, when it was removed for a time to the Great Exhibition, where it formed perhaps the most remarkable and beautifully executed piece of mechanism the combined result of intellectual and mechanical contrivance—in the entire collection.[4]
Clement was on various other occasions invited to undertake work requiring extra skill, which other mechanics were unwilling or unable to execute. He was thus always full of employment, never being under the necessity of canvassing for customers. He was almost constantly in his workshop, in which he took great pride. His dwelling was over the office in the yard, and it was with difficulty he could be induced to leave the premises. On one occasion Mr. Brunel of the Great Western Railway called upon him to ask if he could supply him with a superior steam-whistle for his locomotives, the whistles which they were using giving forth very little sound. Clement examined the specimen brought by Brunel, and pronounced it to be "mere tallow-chandler's work." He undertook to supply a proper article, and after his usual fashion he proceeded to contrive a machine or tool for the express purpose of making steam-whistles. They were made and supplied, and when mounted on the locomotive the effect was indeed "screaming." They were heard miles off, and Brunel, delighted, ordered a hundred. But when the bill came in, it was found that the charge made for them was very high—as much as 40L. the set. The company demurred at the price,—Brunel declaring it to be six times more than the price they had before been paying. "That may be;" rejoined Clement, "but mine are more than six times better. You ordered a first-rate article, and you must be content to pay for it." The matter was referred to an arbitrator, who awarded the full sum claimed. Mr. Weld mentions a similar case of an order which Clement received from America to make a large screw of given dimensions "in the best possible manner," and he accordingly proceeded to make one with the greatest mathematical accuracy. But his bill amounted to some hundreds of pounds, which completely staggered the American, who did not calculate on having to pay more than 20L. at the utmost for the screw. The matter was, however, referred to arbitrators, who gave their decision, as in the former case, in favour of the mechanic.[5]
One of the last works which Clement executed as a matter of pleasure, was the building of an organ for his own use. It will be remembered that when working as a slater at Great Ashby, he had made flutes and clarinets, and now in his old age he determined to try his skill at making an organ—in his opinion the king of musical instruments. The building of it became his hobby, and his greatest delight was in superintending its progress. It cost him about two thousand pounds in labour alone, but he lived to finish it, and we have been informed that it was pronounced a very excellent instrument.
Clement was a heavy-browed man, without any polish of manner or speech; for to the last he continued to use his strong Westmoreland dialect. He was not educated in a literary sense; for he read but little, and could write with difficulty. He was eminently a mechanic, and had achieved his exquisite skill by observation, experience, and reflection. His head was a complete repertory of inventions, on which he was constantly drawing for the improvement of mechanical practice. Though he had never more than thirty workmen in his factory, they were all of the first class; and the example which Clement set before them of extreme carefulness and accuracy in execution rendered his shop one of the best schools of its time for the training of thoroughly accomplished mechanics. Mr. Clement died in 1844, in his sixty-fifth year; after which his works were carried on by Mr. Wilkinson, one of his nephews; and his planing machine still continues in useful work.
[1] On one occasion Galloway had a cast-iron roof made for his workshop, so flat and so independent of ties that the wonder was that it should have stood an hour. One day Peter Keir, an engineer much employed by the government—a clever man, though some what eccentric—was taken into the shop by Galloway to admire the new roof. Keir, on glancing up at it, immediately exclaimed, "Come outside, and let us speak about it there!" All that he could say to Galloway respecting the unsoundness of its construction was of no avail. The fact was that, however Keir might argue about its not being able to stand, there it was actually standing, and that was enough for Galloway. Keir went home, his mind filled with Galloway's most unprincipled roof. "If that stands," said he to himself, "all that I have been learning and doing for thirty years has been wrong." That night he could not sleep for thinking about it. In the morning he strolled up Primrose Hill, and returned home still muttering to himself about "that roof." "What," said his wife to him, "are you thinking of Galloway's roof?" "Yes," said he. "Then you have seen the papers?" "No—what about them?" "Galloway's roof has fallen in this morning, and killed eight or ten of the men!" Keir immediately went to bed, and slept soundly till next morning.
[2] See more particularly The Transactions of the Society for the Encouragement of Arts, vol. xxxiii. (1817), at pp. 74, 157, 160, 175, 208 (an admirable drawing; of Mr. James Allen's Theodolite); vol. xxxvi. (1818), pp. 28, 176 (a series of remarkable illustrations of Mr. Clement's own invention of an Instrument for Drawing Ellipses); vol. xliii. (1825), containing an illustration of the Drawing Table invented by him for large drawings; vol. xlvi. (1828), containing a series of elaborate illustrations of his Prize Turning Lathe; and xlviii. 1829, containing illustrations of his Self-adjusting Double Driver Centre Chuck.
[3] Transactions of the Society for the Encouragement of Arts, vol. xlix. p.157.
[4] A complete account of the calculating machine, as well as of an analytical engine afterwards contrived by Mr. Babbage, of still greater power than the other, will be found in the Bibliotheque Universelle de Geneve, of which a translation into English, with copious original notes, by the late Lady Lovelace, daughter of Lord Byron, was published in the 3rd vol. of Taylor's Scientific Memoirs (London, 1843). A history of the machine, and of the circumstances connected with its construction, will also be found in Weld's History of the Royal Society, vol. ii. 369-391. It remains to be added, that the perusal by Messrs. Scheutz of Stockholm of Dr. Lardner's account of Mr. Babbage's engine in the Edinburgh Review, led those clever mechanics to enter upon the scheme of constructing and completing it, and the result is, that their machine not only calculates the tables, but prints the results. It took them nearly twenty years to perfect it, but when completed the machine seemed to be almost capable of thinking. The original was exhibited at the Paris Exhibition of 1855. A copy of it has since been secured by the English government at a cost of 1200L., and it is now busily employed at Somerset House in working out annuity and other tables for the Registrar-General. The copy was constructed, with several admirable improvements, by the Messrs. Donkin, the well-known mechanical engineers, after the working drawings of the Messrs. Scheutz.
[5] History of the Royal Society, ii. 374.
CHAPTER XIV.
FOX OF DERBY—MURRAY OF LEEDS—ROBERTS AND WHITWORTH OF MANCHESTER.
"Founders and senators of states and cities, lawgivers, extirpers of tyrants, fathers of the people, and other eminent persons in civil government, were honoured but with titles of Worthies or demi-gods; whereas, such as were inventors and authors of new arts, endowments, and commodities towards man's life, were ever consecrated amongst the gods themselves."—BACON, Advancement of Learning.
While such were the advances made in the arts of tool-making and engine-construction through the labours of Bramah, Maudslay, and Clement, there were other mechanics of almost equal eminence who flourished about the same time and subsequently in several of the northern manufacturing towns. Among these may be mentioned James Fox of Derby; Matthew Murray and Peter Fairbairn of Leeds; Richard Roberts, Joseph Whitworth, James Nasmyth, and William Fairbairn of Manchester; to all of whom the manufacturing industry of Great Britain stands in the highest degree indebted.
James Fox, the founder of the Derby firm of mechanical engineers, was originally a butler in the service of the Rev. Thomas Gisborne, of Foxhall Lodge, Staffordshire. Though a situation of this kind might not seem by any means favourable for the display of mechanical ability, yet the butler's instinct for handicraft was so strong that it could not be repressed; and his master not only encouraged him in the handling of tools in his leisure hours, but had so genuine an admiration of his skill as well as his excellent qualities of character, that he eventually furnished him with the means of beginning business on his own account.
The growth and extension of the cotton, silk, and lace trades, in the neighbourhood of Derby, furnished Fox with sufficient opportunities for the exercise of his mechanical skill; and he soon found ample scope for its employment. His lace machinery became celebrated, and he supplied it largely to the neighbouring town of Nottingham; he also obtained considerable employment from the great firms of Arkwright and Strutt—the founders of the modern cotton manufacture. Mr. Fox also became celebrated for his lathes, which were of excellent quality, still maintaining their high reputation; and besides making largely for the supply of the home demand, he exported much machinery abroad, to France, Russia, and the Mauritius.
The present Messrs. Fox of Derby, who continue to carry on the business of the firm, claim for their grandfather, its founder, that he made the first planing machine in 1814,[1] and they add that the original article continued in use until quite recently. We have been furnished by Samuel Hall, formerly a workman at the Messrs. Fox's, with the following description of the machine:—"It was essentially the same in principle as the planing machine now in general use, although differing in detail. It had a self-acting ratchet motion for moving the slides of a compound slide rest, and a self-acting reversing tackle, consisting of three bevel wheels, one a stud, one loose on the driving shaft, and another on a socket, with a pinion on the opposite end of the driving shaft running on the socket. The other end was the place for the driving pulley. A clutch box was placed between the two opposite wheels, which was made to slide on a feather, so that by means of another shaft containing levers and a tumbling ball, the box on reversing was carried from one bevel wheel to the opposite one." The same James Fox is also said at a very early period to have invented a screw-cutting machine, an engine for accurately dividing and cutting the teeth of wheels, and a self-acting lathe. But the evidence as to the dates at which these several inventions are said to have been made is so conflicting that it is impossible to decide with whom the merit of making them really rests. The same idea is found floating at the same time in many minds, the like necessity pressing upon all, and the process of invention takes place in like manner: hence the contemporaneousness of so many inventions, and the disputes that arise respecting them, as described in a previous chapter.
There are still other claimants for the merit of having invented the planing machine; among whom may be mentioned more particularly Matthew Murray of Leeds, and Richard Roberts of Manchester. We are informed by Mr. March, the present mayor of Leeds, head of the celebrated tool-manufacturing firm of that town, that when he first went to work at Matthew Murray's, in 1814, a planing machine of his invention was used to plane the circular part or back of the D valve, which he had by that time introduced in the steam-engine. Mr. March says, "I recollect it very distinctly, and even the sort of framing on which it stood. The machine was not patented, and like many inventions in those days, it was kept as much a secret as possible, being locked up in a small room by itself, to which the ordinary workmen could not obtain access. The year in which I remember it being in use was, so far as I am aware, long before any planing-machine of a similar kind had been invented."
Matthew Murray was born at Stockton-on-Tees in the year 1763. His parents were of the working class, and Matthew, like the other members of the family, was brought up with the ordinary career of labour before him. When of due age his father apprenticed him to the trade of a blacksmith, in which he very soon acquired considerable expertness. He married before his term had expired; after which, trade being slack at Stockton, he found it necessary to look for work elsewhere. Leaving his wife behind him, he set out for Leeds with his bundle on his back, and after a long journey on foot, he reached that town with not enough money left in his pocket to pay for a bed at the Bay Horse inn, where he put up. But telling the landlord that he expected work at Marshall's, and seeming to be a respectable young man, the landlord trusted him; and he was so fortunate as to obtain the job which he sought at Mr. Marshall's, who was then beginning the manufacture of flax, for which the firm has since become so famous.
Mr. Marshall was at that time engaged in improving the method of manufacture,[2] and the young blacksmith was so fortunate or rather so dexterous as to be able to suggest several improvements in the machinery which secured the approval of his employer, who made him a present of 20L., and very shortly promoted him to be the first mechanic in the workshop. On this stroke of good fortune Murray took a house at the neighbouring village of Beeston, sent to Stockton for his wife, who speedily joined him, and he now felt himself fairly started in the world. He remained with Mr. Marshall for about twelve years, during which he introduced numerous improvements in the machinery for spinning flax, and obtained the reputation of being a first-rate mechanic. This induced Mr. James Fenton and Mr. David Wood to offer to join him in the establishment of an engineering and machine-making factory at Leeds; which he agreed to, and operations were commenced at Holbeck in the year 1795.
As Mr. Murray had obtained considerable practical knowledge of the steam-engine while working at Mr. Marshall's, he took principal charge of the engine-building department, while his partner Wood directed the machine-making. In the branch of engine-building Mr. Murray very shortly established a high reputation, treading close upon the heels of Boulton and Watt—so close, indeed, that that firm became very jealous of him, and purchased a large piece of ground close to his works with the object of preventing their extension.[3] His additions to the steam-engine were of great practical value, one of which, the self-acting apparatus attached to the boiler for the purpose of regulating the intensity of fire under it, and consequently the production of steam, is still in general use. This was invented by him as early as 1799. He also subsequently invented the D slide valve, or at least greatly improved it, while he added to the power of the air-pump, and gave a new arrangement to the other parts, with a view to the simplification of the powers of the engine. To make the D valve work efficiently, it was found necessary to form two perfectly plane surfaces, to produce which he invented his planing machine. He was also the first to adopt the practice of placing the piston in a horizontal position in the common condensing engine. Among his other modifications in the steam-engine, was his improvement of the locomotive as invented by Trevithick; and it ought to be remembered to his honour that he made the first locomotive that regularly worked upon any railway.
This was the engine erected by him for Blenkinsop, to work the Middleton colliery railway near Leeds, on which it began to run in 1812, and continued in regular use for many years. In this engine he introduced the double cylinder—Trevithick's engine being provided with only one cylinder, the defects of which were supplemented by the addition of a fly-wheel to carry the crank over the dead points.
But Matthew Murray's most important inventions, considered in their effects on manufacturing industry, were those connected with the machinery for heckling and spinning flax, which he very greatly improved. His heckling machine obtained for him the prize of the gold medal of the Society of Arts; and this as well as his machine for wet flax-spinning by means of sponge weights proved of the greatest practical value. At the time when these inventions were made the flax trade was on the point of expiring, the spinners being unable to produce yarn to a profit; and their almost immediate effect was to reduce the cost of production, to improve immensely the quality of the manufacture, and to establish the British linen trade on a solid foundation. The production of flax-machinery became an important branch of manufacture at Leeds, large quantities being made for use at home as well as for exportation, giving employment to an increasing number of highly skilled mechanics.[4] Mr. Murray's faculty for organising work, perfected by experience, enabled him also to introduce many valuable improvements in the mechanics of manufacturing. His pre-eminent skill in mill-gearing became generally acknowledged, and the effects of his labours are felt to this day in the extensive and still thriving branches of industry which his ingenuity and ability mainly contributed to establish. All the machine tools used in his establishment were designed by himself, and he was most careful in the personal superintendence of all the details of their construction. Mr. Murray died at Leeds in 1826, in his sixty-third year.
We have not yet exhausted the list of claimants to the invention of the Planing Machine, for we find still another in the person of Richard Roberts of Manchester, one of the most prolific of modern inventors. Mr. Roberts has indeed achieved so many undisputed inventions, that he can readily afford to divide the honour in this case with others. He has contrived things so various as the self-acting mule and the best electro-magnet, wet gas-meters and dry planing machines, iron billard-tables and turret-clocks, the centrifugal railway and the drill slotting-machine, an apparatus for making cigars and machinery for the propulsion and equipment of steamships; so that he may almost be regarded as the Admirable Crichton of modern mechanics.
Richard Roberts was born in 1789, at Carreghova in the parish of Llanymynech. His father was by trade a shoemaker, to which he occasionally added the occupation of toll-keeper. The house in which Richard was born stood upon the border line which then divided the counties of Salop and Montgomery; the front door opening in the one county, and the back door in the other. Richard, when a boy, received next to no education, and as soon as he was of fitting age was put to common labouring work. For some time he worked in a quarry near his father's dwelling; but being of an ingenious turn, he occupied his leisure in making various articles of mechanism, partly for amusement and partly for profit. One of his first achievements, while working as a quarryman, was a spinning-wheel, of which he was very proud, for it was considered "a good job." Thus he gradually acquired dexterity in handling tools, and he shortly came to entertain the ambition of becoming a mechanic.
There were several ironworks in the neighbour hood, and thither he went in search of employment. He succeeded in finding work as a pattern-maker at Bradley, near Bilston; under John Wilkinson, the famous ironmaster—a man of great enterprise as well as mechanical skill; for he was the first man, as already stated, that Watt could find capable of boring a cylinder with any approach to truth, for the purposes of his steam-engines. After acquiring some practical knowledge of the art of working in wood as well as iron, Roberts proceeded to Birmingham, where he passed through different shops, gaining further experience in mechanical practice. He tried his hand at many kinds of work, and acquired considerable dexterity in each. He was regarded as a sort of jack-of-all-trades; for he was a good turner, a tolerable wheel-wright, and could repair mill-work at a pinch.
He next moved northward to the Horsley ironworks, Tipton, where he was working as a pattern-maker when he had the misfortune to be drawn in his own county for the militia. He immediately left his work and made his way homeward to Llanymynech, determined not to be a soldier or even a militiaman. But home was not the place for him to rest in, and after bidding a hasty adieu to his father, he crossed the country northward on foot and reached Liverpool, in the hope of finding work there. Failing in that, he set out for Manchester and reached it at dusk, very weary and very miry in consequence of the road being in such a wretched state of mud and ruts. He relates that, not knowing a person in the town, he went up to an apple-stall ostensibly to buy a pennyworth of apples, but really to ask the stall-keeper if he knew of any person in want of a hand. Was there any turner in the neighbourhood? Yes, round the corner. Thither he went at once, found the wood-turner in, and was promised a job on the following morning. He remained with the turner for only a short time, after which he found a job in Salford at lathe and tool-making. But hearing that the militia warrant-officers were still searching for him, he became uneasy and determined to take refuge in London.
He trudged all the way on foot to that great hiding-place, and first tried Holtzapffel's, the famous tool-maker's, but failing in his application he next went to Maudslay's and succeeded in getting employment. He worked there for some time, acquiring much valuable practical knowledge in the use of tools, cultivating his skill by contact with first-class workmen, and benefiting by the spirit of active contrivance which pervaded the Maudslay shops. His manual dexterity greatly increased, and his inventive ingenuity fully stimulated, he determined on making his way back to Manchester, which, even more than London itself, at that time presented abundant openings for men of mechanical skill. Hence we find so many of the best mechanics trained at Maudslay's and Clement's—Nasmyth, Lewis, Muir, Roberts, Whitworth, and others—shortly rising into distinction there as leading mechanicians and tool-makers.
The mere enumeration of the various results of Mr. Roberts's inventive skill during the period of his settlement at Manchester as a mechanical engineer, would occupy more space than we can well spare. But we may briefly mention a few of the more important. In 1816, while carrying on business on his own account in Deansgate, he invented his improved sector for correctly sizing wheels in blank previously to their being cut, which is still extensively used. In the same year he invented his improved screw-lathe; and in the following year, at the request of the boroughreeve and constables of Manchester, he contrived an oscillating and rotating wet gas meter of a new kind, which enabled them to sell gas by measure. This was the first meter in which a water lute was applied to prevent the escape of gas by the index shaft, the want of which, as well as its great complexity, had prevented the only other gas meter then in existence from working satisfactorily. The water lute was immediately adopted by the patentee of that meter. The planing machine, though claimed, as we have seen, by many inventors, was constructed by Mr. Roberts after an original plan of his own in 1817, and became the tool most generally employed in mechanical workshops—acting by means of a chain and rack—though it has since been superseded to some extent by the planing machine of Whitworth, which works both ways upon an endless screw. Improvements followed in the slide-lathe (giving a large range of speed with increased diameters for the same size of headstocks, &c.), in the wheel-cutting engine, in the scale-beam (by which, with a load of 2 oz. on each end, the fifteen-hundredth part of a grain could be indicated), in the broaching-machine, the slotting-machine, and other engines.
But the inventions by which his fame became most extensively known arose out of circumstances connected with the cotton manufactures of Manchester and the neighbourhood. The great improvements which he introduced in the machine for making weavers' reeds, led to the formation of the firm of Sharp, Roberts, and Co., of which Mr. Roberts was the acting mechanical partner for many years. Not less important were his improvements in power-looms for weaving fustians, which were extensively adopted. But by far the most famous of his inventions was unquestionably his Self-acting Mule, one of the most elaborate and beautiful pieces of machinery ever contrived. Before its invention, the working of the entire machinery of the cotton-mill, as well as the employment of the piecers, cleaners, and other classes of operatives, depended upon the spinners, who, though receiving the highest rates of pay, were by much the most given to strikes; and they were frequently accustomed to turn out in times when trade was brisk, thereby bringing the whole operations of the manufactories to a standstill, and throwing all the other operatives out of employment. A long-continued strike of this sort took place in 1824, when the idea occurred to the masters that it might be possible to make the spinning-mules run out and in at the proper speed by means of self-acting machinery, and thus render them in some measure independent of the more refractory class of their workmen. It seemed, however, to be so very difficult a problem, that they were by no means sanguine of success in its solution. Some time passed before they could find any mechanic willing so much as to consider the subject. Mr. Ashton of Staley-bridge made every effort with this object, but the answer he got was uniformly the same. The thing was declared to be impracticable and impossible. Mr. Ashton, accompanied by two other leading spinners, called on Sharp, Roberts, and Co., to seek an interview with Mr. Roberts. They introduced the subject to him, but he would scarcely listen to their explanations, cutting them short with the remark that he knew nothing whatever about cotton-spinning. They insisted, nevertheless, on explaining to him what they required, but they went away without being able to obtain from him any promise of assistance in bringing out the required machine.
The strike continued, and the manufacturers again called upon Mr. Roberts, but with no better result. A third time they called and appealed to Mr. Sharp, the capitalist of the firm, who promised to use his best endeavours to induce his mechanical partner to take the matter in hand. But Mr. Roberts, notwithstanding his reticence, had been occupied in carefully pondering the subject since Mr. Ashton's first interview with him. The very difficulty of the problem to be solved had tempted him boldly to grapple with it, though he would not hold out the slightest expectation to the cotton-spinners of his being able to help them in their emergency until he saw his way perfectly clear. That time had now come; and when Mr. Sharp introduced the subject, he said he had turned the matter over and thought he could construct the required self-acting machinery. It was arranged that he should proceed with it at once, and after a close study of four months he brought out the machine now so extensively known as the self-acting mule. The invention was patented in 1825, and was perfected by subsequent additions, which were also patented.
Like so many other inventions, the idea of the self-acting mule was not new. Thus Mr. William Strutt of Derby, the father of Lord Belper, invented a machine of this sort at an early period; Mr. William Belly, of the New Lanark Mills, invented a second; and various other projectors tried their skill in the same direction; but none of these inventions came into practical use. In such cases it has become generally admitted that the real inventor is not the person who suggests the idea of the invention, but he who first works it out into a practicable process, and so makes it of practical and commercial value. This was accomplished by Mr. Roberts, who, working out the idea after his own independent methods, succeeded in making the first self-acting mule that would really act as such; and he is therefore fairly entitled to be regarded as its inventor.
By means of this beautiful contrivance, spindle-carriages; bearing hundreds of spindles, run themselves out and in by means of automatic machinery, at the proper speed, without a hand touching them; the only labour required being that of a few boys and girls to watch them and mend the broken threads when the carriage recedes from the roller beam, and to stop it when the cop is completely formed, as is indicated by the bell of the counter attached to the working gear. Mr. Baines describes the self-acting mule while at work as "drawing out, twisting, and winding up many thousand threads, with unfailing precision and indefatigable patience and strength—a scene as magical to the eye which is not familiarized with it, as the effects have been marvellous in augmenting the wealth and population of the country." [5]
Mr. Roberts's great success with the self-acting mule led to his being often appealed to for help in the mechanics of manufacturing. In 1826, the year after his patent was taken out, he was sent for to Mulhouse, in Alsace, to design and arrange the machine establishment of Andre Koechlin and Co.; and in that and the two subsequent years he fairly set the works a-going, instructing the workmen in the manufacture of spinning-machinery, and thus contributing largely to the success of the French cotton manufacture. In 1832 he patented his invention of the Radial Arm for "winding on" in the self-acting mule, now in general use; and in future years he took out sundry patents for roving, slubbing, spinning, and doubling cotton and other fibrous materials; and for weaving, beetling, and mangling fabrics of various sorts.
A considerable branch of business carried on by the firm of Sharp, Roberts, and Co. was the manufacture of iron billiard-tables, which were constructed with almost perfect truth by means of Mr. Roberts's planing-machine, and became a large article of export. But a much more important and remunerative department was the manufacture of locomotives, which was begun by the firm shortly after the opening of the Liverpool and Manchester Railway had marked this as one of the chief branches of future mechanical engineering. Mr. Roberts adroitly seized the opportunity presented by this new field of invention and enterprise, and devoted himself for a time to the careful study of the locomotive and its powers. As early as the year 1829 we find him presenting to the Manchester Mechanics' Institute a machine exhibiting the nature of friction upon railroads, in solution of the problem then under discussion in the scientific journals. In the following year he patented an arrangement for communicating power to both driving-wheels of the locomotive, at all times in the exact proportions required when turning to the right or left,—an arrangement which has since been adopted in many road locomotives and agricultural engines. In the same patent will be found embodied his invention of the steam-brake, which was also a favourite idea of George Stephenson, since elaborated by Mr. MacConnell of the London and North-Western Railway. In 1834, Sharp, Roberts, and Co. began the manufacture of locomotives on a large scale; and the compactness of their engines, the excellence of their workmanship, and the numerous original improvements introduced in them, speedily secured for the engines of the Atlas firm a high reputation and a very large demand. Among Mr. Roberts's improvements may be mentioned his method of manufacturing the crank axle, of welding the rim and tyres of the wheels, and his arrangement and form of the wrought-iron framing and axle-guards. His system of templets and gauges, by means of which every part of an engine or tender corresponded with that of every other engine or tender of the same class, was as great an improvement as Maudslay's system of uniformity of parts in other descriptions of machinery.
In connection with the subject of railways, we may allude in passing to Mr. Roberts's invention of the Jacquard punching machine—a self-acting tool of great power, used for punching any required number of holes, of any pitch and to any pattern, with mathematical accuracy, in bridge or boiler plates. The origin of this invention was somewhat similar to that of the self-acting mule. The contractors for the Conway Tubular Bridge while under construction, in 1848, were greatly hampered by combinations amongst the workmen, and they despaired of being able to finish the girders within the time specified in the contract. The punching of the iron plates by hand was a tedious and expensive as well as an inaccurate process; and the work was proceeding so slowly that the contractors found it absolutely necessary to adopt some new method of punching if they were to finish the work in time. In their emergency they appealed to Mr. Roberts, and endeavoured to persuade him to take the matter up. He at length consented to do so, and evolved the machine in question during his evening's leisure—for the most part while quietly sipping his tea. The machine was produced, the contractors were enabled to proceed with the punching of the plates independent of the refractory men, and the work was executed with a despatch, accuracy, and excellence that would not otherwise have been possible. Only a few years since Mr. Roberts added a useful companion to the Jacquard punching machine, in his combined self-acting machine for shearing iron and punching both webs of angle or T iron simultaneously to any required pitch; though this machine, like others which have proceeded from his fertile brain, is ahead even of this fast-manufacturing age, and has not yet come into general use, but is certain to do so before many years have elapsed.
These inventions were surely enough for one man to have accomplished; but we have not yet done. The mere enumeration of his other inventions would occupy several pages. We shall merely allude to a few of them. One was his Turret Clock, for which he obtained the medal at the Great Exhibition of 1851. Another was his Prize Electro-Magnet of 1845. When this subject was first mentioned to him, he said he did not know anything of the theory or practice of electro-magnetism, but he would try and find out. The result of his trying was that he won the prize for the most powerful electro-magnet: one is placed in the museum at Peel Park, Manchester, and another with the Scottish Society of Arts, Edinburgh. In 1846 he perfected an American invention for making cigars by machinery; enabling a boy, working one of his cigar-engines, to make as many as 5000 in a day. In 1852 he patented improvements in the construction, propelling, and equipment of steamships, which have, we believe, been adopted to a certain extent by the Admiralty; and a few years later, in 1855, we find him presenting the Secretary of War with plans of elongated rifle projectiles to be used in smooth-bore ordnance with a view to utilize the old-pattern gun. His head, like many inventors of the time, being full of the mechanics of war, he went so far as to wait upon Louis Napoleon, and laid before him a plan by which Sebastopol was to be blown down. In short, upon whatever subject he turned his mind, he left the impress of his inventive faculty. If it was imperfect, he improved it; if incapable of improvement, and impracticable, he invented something entirely new, superseding it altogether. But with all his inventive genius, in the exercise of which Mr. Roberts has so largely added to the productive power of the country, we regret to say that he is not gifted with the commercial faculty. He has helped others in their difficulties, but forgotten himself. Many have profited by his inventions, without even acknowledging the obligations which they owed to him. They have used his brains and copied his tools, and the "sucked orange" is all but forgotten. There may have been a want of worldly wisdom on his part, but it is lamentable to think that one of the most prolific and useful inventors of his time should in his old age be left to fight with poverty.
Mr. Whitworth is another of the first-class tool-makers of Manchester who has turned to excellent account his training in the workshops of Maudslay and Clement. He has carried fully out the system of uniformity in Screw Threads which they initiated; and he has still further improved the mechanism of the planing machine, enabling it to work both backwards and forwards by means of a screw and roller motion. His "Jim Crow Machine," so called from its peculiar motion in reversing itself and working both ways, is an extremely beautiful tool, adapted alike for horizontal, vertical, or angular motions. The minute accuracy of Mr. Whitworth's machines is not the least of their merits; and nothing will satisfy him short of perfect truth. At the meeting of the Institute of Mechanical Engineers at Glasgow in 1856 he read a paper on the essential importance of possessing a true plane as a standard of reference in mechanical constructions, and he described elaborately the true method of securing it,—namely, by scraping, instead of by the ordinary process of grinding. At the same meeting he exhibited a machine of his invention by which he stated that a difference of the millionth part of an inch in length could at once be detected. He also there urged his favourite idea of uniformity, and proper gradations of size of parts, in all the various branches of the mechanical arts, as a chief means towards economy of production—a principle, as he showed, capable of very extensive application. To show the progress of tools and machinery in his own time, Mr. Whitworth cited the fact that thirty years since the cost of labour for making a surface of cast-iron true—one of the most important operations in mechanics—by chipping and filing by the hand, was 12s. a square foot; whereas it is now done by the planing machine at a cost for labour of less than a penny. Then in machinery, pieces of 74 reed printing-cotton cloth of 29 yards each could not be produced at less cost than 30s. 6d. per piece; whereas the same description is now sold for 3s. 9d. Mr. Whitworth has been among the most effective workers in this field of improvement, his tools taking the first place in point of speed, accuracy, and finish of work, in which respects they challenge competition with the world. Mr. Whitworth has of late years been applying himself with his accustomed ardour to the development of the powers of rifled guns and projectiles,—a branch of mechanical science in which he confessedly holds a foremost place, and in perfecting which he is still occupied.
[1] Engineer, Oct. 10th, 1862.
[2] We are informed in Mr. Longstaffe's Annals and Characteristics of Darlington, that the spinning of flax by machinery was first begun by one John Kendrew, an ingenious self-taught mechanic of that town, who invented a machine for the purpose, for which he took out a patent in 1787. Mr. Marshall went over from Leeds to see his machine, and agreed to give him so much per spindle for the right to use it. But ceasing to pay the patent right, Kendrew commenced an action against him for a sum of nine hundred pounds alleged to be due under the agreement. The claim was disputed, and Kendrew lost his action; and it is added in Longstaffe's Annals, that even had he succeeded, it would have been of no use; for Mr. Marshall declared that he had not then the money wherewith to pay him. It is possible that Matthew Murray may have obtained some experience of flax-machinery in working for Kendrew, which afterwards proved of use to him in Mr. Marshall's establishment.
[3] The purchase of this large piece of ground, known as Camp Field, had the effect of "plugging up" Matthew Murray for a time; and it remained disused, except for the deposit of dead dogs and other rubbish, for more than half a century. It has only been enclosed during the present year, and now forms part of the works of Messrs. Smith, Beacock, and Tannet, the eminent tool-makers.
[4] Among more recent improvers of flax-machinery, the late Sir Peter Fairbairn is entitled to high merit: the work turned out by him being of first-rate excellence, embodying numerous inventions and improvements of great value and importance.
[5] EDWARD BAINES, Esq., M.P., History of the Cotton Manufacture, 212.
CHAPTER XV.
JAMES NASMYTH.
"By Hammer and Hand
All Arts doth stand."
Hammermen's Motto.
The founder Of the Scotch family of Naesmyth is said to have derived his name from the following circumstance. In the course of the feuds which raged for some time between the Scotch kings and their powerful subjects the Earls of Douglas, a rencontre took place one day on the outskirts of a Border village, when the king's adherents were worsted. One of them took refuge in the village smithy, where, hastily disguising himself, and donning a spare leathern apron, he pretended to be engaged in assisting the smith with his work, when a party of the Douglas followers rushed in. They glanced at the pretended workman at the anvil, and observed him deliver a blow upon it so unskilfully that the hammer-shaft broke in his hand. On this one of the Douglas men rushed at him, calling out, "Ye're nae smyth!" The assailed man seized his sword, which lay conveniently at hand, and defended himself so vigorously that he shortly killed his assailant, while the smith brained another with his hammer; and, a party of the king's men having come to their help, the rest were speedily overpowered. The royal forces then rallied, and their temporary defeat was converted into a victory. The king bestowed a grant of land on his follower "Nae Smyth," who assumed for his arms a sword between two hammers with broken shafts, and the motto "Non arte sed Marte," as if to disclaim the art of the Smith, in which he had failed, and to emphasize the superiority of the warrior. Such is said to be the traditional origin of the family of Naesmyth of Posso in Peeblesshire, who continue to bear the same name and arms.
It is remarkable that the inventor of the steam-hammer should have so effectually contradicted the name he bears and reversed the motto of his family; for so far from being "Nae Smyth," he may not inappropriately be designated the very Vulcan of the nineteenth century. His hammer is a tool of immense power and pliancy, but for which we must have stopped short in many of those gigantic engineering works which are among the marvels of the age we live in. It possesses so much precision and delicacy that it will chip the end of an egg resting in a glass on the anvil without breaking it, while it delivers a blow of ten tons with such a force as to be felt shaking the parish. It is therefore with a high degree of appropriateness that Mr. Nasmyth has discarded the feckless hammer with the broken shaft, and assumed for his emblem his own magnificent steam-hammer, at the same time reversing the family motto, which he has converted into "Non Marte sed Arte."
James Nasmyth belongs to a family whose genius in art has long been recognised. His father, Alexander Nasmyth of Edinburgh, was a landscape-painter of great eminence, whose works are sometimes confounded with those of his son Patrick, called the English Hobbema, though his own merits are peculiar and distinctive. The elder Nasmyth was also an admirable portrait painter, as his head of Burns—the best ever painted of the poet—bears ample witness. His daughters, the Misses Nasmyth, were highly skilled painters of landscape, and their works are well known and much prized. James, the youngest of the family, inherits the same love of art, though his name is more extensively known as a worker and inventor in iron. He was born at Edinburgh, on the 19th of August, 1808; and his attention was early directed to mechanics by the circumstance of this being one of his father's hobbies. Besides being an excellent painter, Mr. Nasmyth had a good general knowledge of architecture and civil engineering, and could work at the lathe and handle tools with the dexterity of a mechanic. He employed nearly the whole of his spare time in a little workshop which adjoined his studio, where he encouraged his youngest son to work with him in all sorts of materials. Among his visitors at the studio were Professor Leslie, Patrick Miller of Dalswinton, and other men of distinction. He assisted Mr. Miller in his early experiments with paddle-boats, which eventually led to the invention of the steamboat. It was a great advantage for the boy to be trained by a father who so loved excellence in all its forms, and could minister to his love of mechanics by his own instruction and practice. James used to drink in with pleasure and profit the conversation which passed between his father and his visitors on scientific and mechanical subjects; and as he became older, the resolve grew stronger in him every day that he would be a mechanical engineer, and nothing else. At a proper age, he was sent to the High School, then as now celebrated for the excellence of its instruction, and there he laid the foundations of a sound and liberal education. But he has himself told the simple story of his early life in such graphic terms that we feel we cannot do better than quote his own words:—[1]
"I had the good luck," he says, "to have for a school companion the son of an iron founder. Every spare hour that I could command was devoted to visits to his father's iron foundry, where I delighted to watch the various processes of moulding, iron-melting, casting, forging, pattern-making, and other smith and metal work; and although I was only about twelve years old at the time, I used to lend a hand, in which hearty zeal did a good deal to make up for want of strength. I look back to the Saturday afternoons spent in the workshops of that small foundry, as an important part of my education. I did not trust to reading about such and such things; I saw and handled them; and all the ideas in connection with them became permanent in my mind. I also obtained there—what was of much value to me in after life—a considerable acquaintance with the nature and characters of workmen. By the time I was fifteen, I could work and turn out really respectable jobs in wood, brass, iron, and steel: indeed, in the working of the latter inestimable material, I had at a very early age (eleven or twelve) acquired considerable proficiency. As that was the pre-lucifer match period, the possession of a steel and tinder box was quite a patent of nobility among boys. So I used to forge old files into 'steels' in my father's little workshop, and harden them and produce such first-rate, neat little articles in that line, that I became quite famous amongst my school companions; and many a task have I had excused me by bribing the monitor, whose grim sense of duty never could withstand the glimpse of a steel.
"My first essay at making a steam engine was when I was fifteen. I then made a real working; steam-engine, 1 3/4 diameter cylinder, and 8 in. stroke, which not only could act, but really did some useful work; for I made it grind the oil colours which my father required for his painting. Steam engine models, now so common, were exceedingly scarce in those days, and very difficult to be had; and as the demand for them arose, I found it both delightful and profitable to make them; as well as sectional models of steam engines, which I introduced for the purpose of exhibiting the movements of all the parts, both exterior and interior. With the results of the sale of such models I was enabled to pay the price of tickets of admission to the lectures on natural philosophy and chemistry delivered in the University of Edinburgh. About the same time (1826) I was so happy as to be employed by Professor Leslie in making models and portions of apparatus required by him for his lectures and philosophical investigations, and I had also the inestimable good fortune to secure his friendship. His admirably clear manner of communicating a knowledge of the fundamental principles of mechanical science rendered my intercourse with him of the utmost importance to myself. A hearty, cheerful, earnest desire to toil in his service, caused him to take pleasure in instructing me by occasional explanations of what might otherwise have remained obscure.
"About the years 1827 and 1828, the subject of steam-carriages for common roads occupied much of the attention of the public. Many tried to solve the problem. I made a working model of an engine which performed so well that some friends determined to give me the means of making one on a larger scale. This I did; and I shall never forget the pleasure and the downright hard work I had in producing, in the autumn of 1828, at an outlay of 60L., a complete steam-carriage, that ran many a mile with eight persons on it. After keeping it in action two months, to the satisfaction of all who were interested in it, my friends allowed me to dispose of it, and I sold it a great bargain, after which the engine was used in driving a small factory. I may mention that in that engine I employed the waste steam to cause an increased draught by its discharge up the chimney. This important use of the waste steam had been introduced by George Stephenson some years before, though entirely unknown to me.
"The earnest desire which I cherished of getting forward in the real business of life induced me to turn my attention to obtaining employment in some of the great engineering establishments of the day, at the head of which, in my fancy as well as in reality, stood that of Henry Maudslay, of London. It was the summit of my ambition to get work in that establishment; but as my father had not the means of paying a premium, I determined to try what I could do towards attaining my object by submitting to Mr. Maudslay actual specimens of my capability as a young workman and draughtsman. To this end I set to work and made a small steam-engine, every part of which was the result of my own handiwork, including the casting and the forging of the several parts. This I turned out in such a style as I should even now be proud of. My sample drawings were, I may say, highly respectable. Armed with such means of obtaining the good opinion of the great Henry Maudslay, on the 19th of May, 1829, I sailed for London in a Leith smack, and after an eight days' voyage saw the metropolis for the first time. I made bold to call on Mr. Maudslay, and told him my simple tale. He desired me to bring my models for him to look at. I did so, and when he came to me I could see by the expression of his cheerful, well-remembered countenance, that I had attained my object. He then and there appointed me to be his own private workman, to assist him in his little paradise of a workshop, furnished with the models of improved machinery and engineering tools of which he has been the great originator. He left me to arrange as to wages with his chief cashier, Mr. Robert Young, and on the first Saturday evening I accordingly went to the counting-house to enquire of him about my pay. He asked me what would satisfy me. Knowing the value of the situation I had obtained, and having a very modest notion of my worthiness to occupy it, I said, that if he would not consider 10s. a week too much, I thought I could do very well with that. I suppose he concluded that I had some means of my own to live on besides the 10s. a week which I asked. He little knew that I had determined not to cost my father another farthing when I left-home to begin the world on my own account. My proposal was at once acceded to. And well do I remember the pride and delight I felt when I carried to my three shillings a week lodging that night my first wages. Ample they were in my idea; for I knew how little I could live on, and was persuaded that by strict economy I could easily contrive to make the money support me. To help me in this object, I contrived a small cooking apparatus, which I forthwith got made by a tinsmith in Lambeth, at a cost of 6s., and by its aid I managed to keep the eating and drinking part of my private account within 3s. 6d. per week, or 4s. at the outside. I had three meat dinners a week, and generally four rice and milk dinners, all of which were cooked by my little apparatus, which I set in action after breakfast. The oil cost not quite a halfpenny per day. The meat dinners consisted of a stew of from a half to three quarters of a lb. of leg of beef, the meat costing 3 1/2d. per lb., which, with sliced potatoes and a little onion, and as much water as just covered all, with a sprinkle of salt and black pepper, by the time I returned to dinner at half-past six furnished a repast in every respect as good as my appetite. For breakfast I had coffee and a due proportion of quartern loaf. After the first year of my employment under Mr. Maudslay, my wages were raised to 15s. a week, and I then, but not till then, indulged in the luxury of butter to my bread. I am the more particular in all this, to show you that I was a thrifty housekeeper, although only a lodger in a 3s. room. I have the old apparatus by me yet, and I shall have another dinner out of it ere I am a year older, out of regard to days that were full of the real romance of life.
"On the death of Henry Maudslay in 1831, I passed over to the service of his worthy partner, Mr. Joshua Field, and acted as his draughtsman, much to my advantage, until the end of that year, when I returned to Edinburgh, to construct a small stock of engineering tools for the purpose of enabling me to start in business on my own account. This occupied me until the spring of 1833, and during the interval I was accustomed to take in jobs to execute in my little workshop in Edinburgh, so as to obtain the means of completing my stock of tools.[2] In June, 1834, I went to Manchester, and took a flat of an old mill in Dale Street, where I began business. In two years my stock had so increased as to overload the floor of the old building to such an extent that the land lord, Mr. Wrenn, became alarmed, especially as the tenant below me—a glass-cutter—had a visit from the end of a 20-horse engine beam one morning among his cut tumblers. To set their anxiety at rest, I went out that evening to Patricroft and took a look at a rather choice bit of land bounded on one side by the canal, and on the other by the Liverpool and Manchester Railway. By the end of the week I had secured a lease of the site for 999 years; by the end of the month my wood sheds were erected; the ring of the hammer on the smith's anvil was soon heard all over the place; and the Bridgewater Foundry was fairly under way. There I toiled right heartily until December 31st, 1856, when I retired to enjoy in active leisure the reward of a laborious life, during which, with the blessing of God, I enjoyed much true happiness through the hearty love which I always had for my profession; and I trust I may be allowed to say, without undue vanity, that I have left behind me some useful results of my labours in those inventions with which my name is identified, which have had no small share in the accomplishment of some of the greatest mechanical works of our age." If Mr. Nasmyth had accomplished nothing more than the invention of his steam-hammer, it would have been enough to found a reputation. Professor Tomlinson describes it as "one of the most perfect of artificial machines and noblest triumphs of mind over matter that modern English engineers have yet developed." [3]
The hand-hammer has always been an important tool, and, in the form of the stone celt, it was perhaps the first invented. When the hammer of iron superseded that of stone, it was found practicable in the hands of a "cunning" workman to execute by its means metal work of great beauty and even delicacy. But since the invention of cast-iron, and the manufacture of wrought-iron in large masses, the art of hammer-working has almost become lost; and great artists, such as Matsys of Antwerp and Rukers of Nuremberg were,[4] no longer think it worth their while to expend time and skill in working on so humble a material as wrought-iron. It is evident from the marks of care and elaborate design which many of these early works exhibit, that the workman's heart was in his work, and that his object was not merely to get it out of hand, but to execute it in first-rate artistic style.
When the use of iron extended and larger ironwork came to be forged, for cannon, tools, and machinery, the ordinary hand-hammer was found insufficient, and the helve or forge-hammer was invented. This was usually driven by a water-wheel, or by oxen or horses. The tilt-hammer was another form in which it was used, the smaller kinds being worked by the foot. Among Watt's various inventions, was a tilt-hammer of considerable power, which he at first worked by means of a water-wheel, and afterwards by a steam engine regulated by a fly-wheel. His first hammer of this kind was 120 lbs. in weight; it was raised eight inches before making each blow. Watt afterwards made a tilt-hammer for Mr. Wilkinson of Bradley Forge, of 7 1/2 cwt., and it made 300 blows a minute. Other improvements were made in the hammer from time to time, but no material alteration was made in the power by which it was worked until Mr. Nasmyth took it in hand, and applying to it the force of steam, at once provided the worker in iron with the most formidable of machine-tools. This important invention originated as follows:
In the early part of 1837, the directors of the Great Western Steam-Ship Company sent Mr. Francis Humphries, their engineer, to consult Mr. Nasmyth as to some engineering tools of unusual size and power, which were required for the construction of the engines of the "Great Britain" steamship. They had determined to construct those engines on the vertical trunk-engine principle, in accordance with Mr. Humphries' designs; and very complete works were erected by them at their Bristol dockyard for the execution of the requisite machinery, the most important of the tools being supplied by Nasmyth and Gaskell. The engines were in hand, when a difficulty arose with respect to the enormous paddle-shaft of the vessel, which was of such a size of forging as had never before been executed. Mr. Humphries applied to the largest engineering firms throughout the country for tenders of the price at which they would execute this part of the work, but to his surprise and dismay he found that not one of the firms he applied to would undertake so large a forging. In this dilemma he wrote to Mr. Nasmyth on the 24th November,1838, informing him of this unlooked-for difficulty. "I find," said he, "there is not a forge-hammer in England or Scotland powerful enough to forge the paddle-shaft of the engines for the 'Great Britain!' What am I to do? Do you think I might dare to use cast-iron?"