Men of Invention and Industry Part 9

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"Behind yon hills where Lugar flows."

That was the scene of William Murdock's boyhood. When a boy, he herded his father's cows along the banks of the Bellow; and as there were then no hedges, it was necessary to have some one to watch the cattle while grazing. The spot is still pointed out where the boy, in the intervals of his herding, hewed a square compartment out of the rock by the water side, and there burnt the splint coal found on the top of the Black Band ironstone. That was one of the undeveloped industries of Scotland; for the Scotch iron trade did not arrive at any considerable importance until about a century later.[3] The little cavern in which Murdock burnt the splint coal was provided with a fireplace and vent, all complete. It is possible that he may have there derived, from his experiments, the first idea of Gas as an illuminant.

Murdock is also said to have made a wooden horse, worked by mechanical power, which was the wonder of the district. On this mechanical horse he rode to the village of c.u.mnock, about two miles distant. His father's name is, however, a.s.sociated with his own in the production of this machine. Old John Murdock had a reputation for intelligence and skill of no ordinary kind. When at Carron ironworks, in 1760, he had a pinton cast after a pattern which he had prepared. This is said to have been the first piece of iron-toothed gearing ever used in mill work. When I last saw it, the pinton was placed on the lawn in front of William Murdock's villa at Handsworth.

The young man helped his father in many ways. He worked in the mill, worked on the farm, and a.s.sisted in the preparation of mill machinery.

In this way he obtained a considerable amount of general technical knowledge. He even designed and constructed bridges. He was employed to build a bridge over the river Nith, near Dumfries, and it stands there to this day, a solid and handsome structure. But he had an ambition to be something more than a country mason. He had heard a great deal about the inventions of James Watt; and he determined to try whether he could not get "a job" at the famous manufactory at Soho. He accordingly left his native place in the year 1777, in the twenty-third year of his age; and migrated southward. He left plenty of Murdocks behind him. There was a famous staff in the family, originally owned by William Murdock's grandfather, which bore the following inscription: "This staff I leave in pedigree to the oldest Murdock after me, in the parish of Auchenleck, 1745." This staff was lately held by Jean Murdock, daughter of the late William Murdock, joiner, cousin of the subject of this biography.

When William arrived at Soho in 1777 he called at the works to ask for employment. Watt was then in Cornwall, looking after his pumping engines; but he saw Boulton, who was usually accessible to callers of every rank. In answer to Murdock's enquiry whether he could have a job, Boulton replied that work was very slack with them, and that every place was filled up. During the brief conversation that took place, the blate young Scotchman, like most country lads in the presence of strangers, had some difficulty in knowing what to do with his hands, and unconsciously kept twirling his hat with them. Boulton's attention was attracted to the twirling hat, which seemed to be of a peculiar make. It was not a felt hat, nor a cloth hat, nor a glazed hat: but it seemed to be painted, and composed of some unusual material. "That seems to be a curious sort of hat," said Boulton, looking at it more closely; "what is it made of?" "Timmer, sir," said Murdock, modestly.

"Timmer? Do you mean to say that it is made of wood?" "'Deed it is, sir." "And pray how was it made?" "I made it mysel, sir, in a bit laithey of my own contrivin'." "Indeed!"

Boulton looked at the young man again. He had risen a hundred degrees in his estimation. William was a good-looking fellow--tall, strong, and handsome--with an open intelligent countenance. Besides, he had been able to turn a hat for himself with a lathe of his own construction. This, of itself, was a sufficient proof that he was a mechanic of no mean skill. "Well!" said Boulton, at last, "I will enquire at the works, and see if there is anything we can set you to.

Call again, my man."

"Thank you, sir," said Murdock, giving a final twirl to his hat.

Such was the beginning of William Murdock's connection with the firm of Boulton and Watt. When he called again he was put upon a trial job, and then, as he was found satisfactory, he was engaged for two years at 15s. a week when at home, 17s. when in the country, and 18s. when in London. Boulton's engagement of Murdock was amply justified by the result. Beginning as an ordinary mechanic, he applied himself diligently and conscientiously to his work, and gradually became trusted. More responsible duties were confided to him, and he strove to perform them to the best of his power. His industry, skilfulness, and steady sobriety, soon marked him for promotion, and he rose from grade to grade until he became Boulton and Watt's most trusted co-worker and adviser in all their mechanical undertakings of importance.

Watt himself had little confidence in Scotchmen as mechanics. He told Sir Waiter Scott that though many of them sought employment at his works, he could never get any of them to become first-rate workmen.

They might be valuable as clerks and book-keepers, but they had an insuperable aversion to toiling long at any point of mechanism, so as to earn the highest wages paid to the workmen.[4] The reason no doubt was, that the working-people of Scotland were then only in course of education as practical mechanics; and now that they have had a century's discipline of work and technical training, the result is altogether different, as the engine-shops and s.h.i.+pbuilding-yards of the Clyde abundantly prove. Mechanical power and technical ability are the result of training, like many other things.

When Boulton engaged Murdock, as we have said, Watt was absent in Cornwall, looking after the pumping-engines which had been erected at several of the mines throughout that county. The partners.h.i.+p had only been in existence for three years, and Watt was still struggling with the difficulties which he had to surmount in getting the steam engine into practical use. His health was bad, and he was oppressed with frightful headaches. He was not the man to fight the selfishness of the Cornish adventurers. "A little more of this hurrying and vexation," he said, "will knock me up altogether." Boulton went to his help occasionally, and gave him hope and courage. And at length William Murdock, after he had acquired sufficient knowledge of the business, was able to undertake the princ.i.p.al management of the engines in Cornwall.

We find that in 1779, when he was only twenty-five years old, he was placed in this important position. When he went into Cornwall, he gave himself no rest until he had conquered the defects of the engines, and put them into thorough working order.

He devoted himself to his duties with a zeal and ability that completely won Watt's heart. When he had an important job in hand, he could scarcely sleep. One night at his lodgings at Redruth, the people were disturbed by a strange noise in his room. Several heavy blows were heard upon the floor. They started from their beds, rushed to Murdock's room, and found him standing in his s.h.i.+rt, heaving at the bedpost in his sleep, shouting "Now she goes, lads! now she goes!"

Murdock became a most popular man with the mine owners. He also became friendly with the Cornish workmen and engineers. Indeed, he fought his way to their affections. One day, some half-dozen of the mining captains came into his engine-room at Chacewater, and began to bully him. This he could not stand. He stript, selected the biggest, and put himself into a fighting att.i.tude. They set to, and in a few minutes Murdock's powerful bones and muscles enabled him to achieve the victory. The other men, who had looked on fairly, without interfering, seeing the temper and vigour of the man they had bullied, made overtures of reconciliation. William was quite willing to be friendly.

Accordingly they shook hands all round, and parted the best of friends.

It is also said that Murdock afterwards fought a duel with Captain Trevethick, because of a quarrel between Watt and the mining engineer, in which Murdock conceived his master to have been unfairly and harshly treated.[5]

The uses of Watt's steam-engine began to be recognised as available for manufacturing purposes. It was then found necessary to invent some method by which continuous rotary motion should be secured, so as to turn round the moving machinery of mills. With this object Watt had invented his original wheel-engine. But no steps were taken to introduce it into practical use. At length he prepared a model, in which he made use of a crank connected with the working beam of the engine, so as to produce the necessary rotary motion.

There was no originality in this application. The crank was one of the most common of mechanical appliances. It was in daily use in every spinning wheel, and in every turner's and knife-grinder's foot-lathe.

Watt did not take out a patent for the crank, not believing it to be patentable. But another person did so, thereby antic.i.p.ating Watt in the application of the crank for producing rotary motion. He had therefore to employ some other method, and in the new contrivance he had the valuable help of William Murdock. Watt devised five different methods of securing rotary motion without using the crank, but eventually he adopted the "Sun-and-planet motion," the invention of Murdock. This had the singular property of going twice round for every stroke of the engine, and might be made to go round much oftener without additional machinery. The invention was patented in February, 1782, five Years after Murdock had entered the service of Boulton and Watt.

Murdock continued for many years busily occupied in superintending the Cornish steam-engines. We find him described by his employers as "flying from mine to mine," putting the engines to rights. If anything went wrong, he was immediately sent for. He was active, quick-sighted, shrewd, sober, and thoroughly trustworthy. Down to the year 1780, his wages were only a pound a week; but Boulton made him a present of ten guineas, to which the owners of the United Mines added another ten, in acknowledgment of the admirable manner in which he bad erected their new engine, the chairman of the company declaring that he was "the most obliging and industrious workman he had ever known." That he secured the admiration of the Cornish engineers may be obvious from the fact of Mr. Boaze having invited him to join in an engineering partners.h.i.+p; but Murdock remained loyal to the Birmingham firm, and in due time he had his reward.

He continued to be the "right hand man" of the concern in Cornwall.

Boulton wrote to Watt, towards the end of 1782: "Murdock hath been indefatigable ever since he began. He has scarcely been in bed or taken necessary food. After slaving night and day on Thursday and Friday, a letter came from Wheal Virgin that he must go instantly to set their engine to work, or they would let out the fire. He went and set the engine to work; it worked well for the five or six hours he remained. He left it, and returned to the Consolidated Mines about eleven at night, and was employed about the engines till four this morning, and then went to bed. I found him at ten this morning in Poldice Cistern, seeking for pins and castors that had jumped out, when I insisted on his going home to bed."

On one occasion, when an engine superintended by Murdock stopped through some accident, the water rose in the mine, and the workmen were "drowned out." Upon this occurring, the miners went "roaring at him"

for throwing them out of work, and threatened to tear him to pieces.

Nothing daunted, he went through the midst of the men, repaired the invalided engine, and started it afresh.

When he came out of the engine-house, the miners cheered him vociferously and insisted upon carrying him home upon their shoulders in triumph!

Steam was now a.s.serting its power everywhere. It was pumping water from the mines in Cornwall and driving the mills of the manufacturers in Lancas.h.i.+re. Speculative mechanics began to consider whether it might not be employed as a means of land locomotion. The comprehensive mind of Sir Isaac Newton had long before, in his 'Explanation of the Newtonian Philosophy,' thrown out the idea of employing steam for this purpose; but no practical experiment was made. Benjamin Franklin, while agent in London for the United Provinces of America, had a correspondence with Matthew Boulton, of Birmingham, and Dr. Darwin, of Lichfield, on the same subject. Boulton sent a model of a fire-engine to London for Franklin's inspection; but Franklin was too much occupied at the time by grave political questions to pursue the subject further.

Erasmus Darwin's speculative mind was inflamed by the idea of a "fiery chariot," and he urged his friend Boulton to prosecute the contrivance of the necessary steam machinery.[6]

Other minds were at work. Watt, when only twenty-three years old, at the instigation of his friend Robison, made a model locomotive, provided with two cylinders of tin plate; but the project was laid aside, and was never again taken up by the inventor. Yet, in his patent of 1784, Watt included an arrangement by means of which steam-power might be employed for the purposes of locomotion. But no further model of the contrivance was made.

Meanwhile, Cugnot, of Paris, had already made a road engine worked by steam power. It was first tried at the a.r.s.enal in 1769; and, being set in motion, it ran against a stone wall in its way and threw it down.

The engine was afterwards tried in the streets of Paris. In one of the experiments it fell over with a crash, and was thenceforward locked up in the a.r.s.enal to prevent its doing further mischief. This first locomotive is now to be seen at the Conservatoire des Arts et Metiers at Paris.

Murdock had doubtless heard of Watt's original speculations, and proceeded, while at Redruth, during his leisure hours, to construct a model locomotive after a design of his own. This model was of small dimensions, standing little more than a foot and a half high, though it was sufficiently large to demonstrate the soundness of the principle on which it was constructed. It was supported on three wheels, and carried a small copper boiler, heated by a spirit lamp, with a flue pa.s.sing obliquely through it. The cylinder, of 3/4 inch diameter and 2-inch stroke, was fixed in the top of the boiler, the piston-rod being connected with the vibratory beam attached to the connecting-rod which worked the crank of the driving-wheel. This little engine worked by the expansive force of steam only, which was discharged into the atmosphere after it had done its work of alternately raising and depressing the piston in the cylinder.

Mr. Murdock's son, while living at Handsworth, informed the present writer that this model was invented and constructed in 1781; but, after perusing the correspondence of Boulton and Watt, we infer that it was not ready for trial until 1784. The first experiment was made in Murdock's own house at Redruth, when the little engine successfully hauled a model waggon round the room,--the single wheel, placed in front of the engine and working in a swivel frame, enabling it to run round in a circle.

Another experiment was made out of doors, on which occasion, small though the engine was, it fairly outran the speed of its inventor. One night, after returning from his duties at the mine at Redruth, Murdock went with his model locomotive to the avenue leading to the church, about a mile from the town. The walk was narrow, straight, and level.

Having lit the lamp, the water soon boiled, and off started the engine with the inventor after it. Shortly after he heard distant shouts of terror. It was too dark to perceive objects, but he found, on following up the machine, that the cries had proceeded from the worthy vicar, who, while going along the walk, had met the hissing and fiery little monster, which he declared he took to be the Evil One in propria persona!

When Watt was informed of Murdock's experiments, he feared that they might interfere with his regular duties, and advised their discontinuance. Should Murdock still resolve to continue them, Watt urged his partner Boulton, then in Cornwall, that, rather than lose Murdock's services, they should advance him 100L.; and, if he succeeded within a year in making an engine capable of drawing a post-chaise carrying two pa.s.sengers and the driver, at the rate of four miles an hour, that a locomotive engine business should be established, with Murdock as a partner. The arrangement, however, never proceeded any further. Perhaps a different attraction withdrew Murdock from his locomotive experiments. He was then paying attention to a young lady, the daughter of Captain Painter; and in 1785 he married her, and brought her home to his house in Cross Street, Redruth.

In the following year,--September, 1786--Watt says, in a letter to Boulton, "I have still the same opinion concerning the steam carriage, but, to prevent more fruitless argument about it, I have one of some size under hand. In the meantime, I wish William could be brought to do as we do, to mind the business in hand, and let such as Symington and Sadler throw away their time and money in hunting shadows." In a subsequent letter Watt expressed his gratification at finding "that William applies to his business." From that time forward, Murdock as well as Watt, dropped all further speculation on the subject, and left it to others to work out the problem of the locomotive engine.

Murdock's model remained but a curious toy, which he took pleasure in exhibiting to his intimate friends; and, though he long continued to speculate about road locomotion, and was persuaded of its practicability, he abstained from embodying his ideas of the necessary engine in any complete working form.

Murdock nevertheless continued inventing, for the man who is given to invent, and who possesses the gift of insight, cannot rest. He lived in the midst of inventors. Watt and Boulton were constantly suggesting new things, and Murdock became possessed by the same spirit. In 1791 he took out his first patent. It was for a method of preserving s.h.i.+ps'

bottoms from foulness by the use of a certain kind of chemical paint.

Mr. Murdock's grandson informs us that it was recently re-patented and was the cause of a lawsuit, and that Hislop's patent for revivifying gas-lime would have been an infringement, if it had not expired.

Murdock is still better known by his invention of gas for lighting purposes. Several independent inquirers into the const.i.tuents of Newcastle coal had arrived at the conclusion that nearly one-third of the substance was driven off in vapour by the application of heat, and that the vapour so driven off was inflammable. But no suggestion had been made to apply this vapour for lighting purposes until Murdock took the matter in hand. Mr. M. S. Pea.r.s.e has sent us the following interesting reminiscence: "Some time since, when in the West of Cornwall, I was anxious to find out whether any one remembered Murdock.

I discovered one of the most respectable and intelligent men in Camborne, Mr. William Symons, who not only distinctly remembered Murdock, but had actually been present on one of the first occasions when gas was used. Murdock, he says, was very fond of children, and not unfrequently took them into his workshop to show them what he was doing. Hence it happened that on one occasion this gentleman, then a boy of seven or eight, was standing outside Murdock's door with some other boys, trying to catch sight of some special mystery inside, for Dr. Boaze, the chief doctor of the place, and Murdock had been busy all the afternoon. Murdock came out, and asked my informant to run down to a shop near by for a thimble. On returning with the thimble, the boy pretended to have lost it, and, whilst searching in every pocket, he managed to slip inside the door of the workshop, and then produced the thimble. He found Dr. Boaze and Murdock with a kettle filled with coal. The gas issuing from it had been burnt in a large metal case, such as was used for blasting purposes. Now, however, they had applied a much smaller tube, and at the end of it fastened the thimble, through the small perforations made in which they burned a continuous jet for some time."[7]

After numerous experiments, Murdock had his house in Cross Street fitted up in 1792 for being lit by gas. The coal was subjected to heat in an iron retort, and the gas was conveyed in pipes to the offices and the different rooms of the house, where it was burned at proper apertures or burners.[8] Portions of the gas were also confined in portable vessels of tinned iron, from which it was burned when required, thus forming a moveable gas-light. Murdock had a gas lantern in regular use, for the purpose of lighting himself home at night across the moors, from the mines where he was working, to his home at Redruth. This lantern was formed by filling a bladder with gas and fixing a jet to the mouthpiece at the bottom of a gla.s.s lantern, with the bladder hanging underneath.

Having satisfied himself as to the superior economy of coal gas, as compared with oils and tallow, for the purposes of artificial illumination, Murdock mentioned the subject to Mr. James Watt, jun., during a brief visit to Soho in 1794, and urged the propriety of taking out a patent. Watt was, however, indifferent to taking out any further patents, being still engaged in contesting with the Cornish mine-owners his father's rights to the user of the condensing steam-engine.

Nothing definite was done at the time. Murdock returned to Cornwall and continued his experiments. At the end of the same year he exhibited to Mr. Phillips and others, at the Polgooth mine, his apparatus for extracting gases from coal and other substances, showed it in use, lit the gas which issued from the burner, and showed its "strong and beautiful light." He afterwards exhibited the same apparatus to Tregelles and others at the Neath Abbey Company's ironworks in Glamorgans.h.i.+re.

Murdock returned to Soho in 1798, to take up his permanent residence in the neighbourhood. When the mine owners heard of his intention to leave Cornwall, they combined in offering him a handsome salary provided he would remain in the county; but his attachment to his friends at Soho would not allow him to comply with their request. He again urged the firm of Boulton and Watt to take out a patent for the use of gas for lighting purposes. But being still embroiled in their tedious and costly lawsuit, they were naturally averse to risk connection with any other patent. Watt the younger, with whom Murdock communicated on the subject, was aware that the current of gas obtained from the distillation of coal in Lord Dundonald's tar-ovens had been occasionally set fire to, and also that Bishop Watson and others had burned gas from coal, after conducting it through tubes, or after it had issued from the retort. Mr. Watt was, however, quite satisfied that Murdock was the first person who had suggested its economical application for public and private uses.

But he was not clear, after the legal difficulties which had been raised as to his father's patent rights, that it would be safe to risk a further patent for gas.

Mr. Murdock's suggestion, accordingly, was not acted upon. But he went on inventing in other directions. He thenceforward devoted himself entirely to mechanical pursuits. Mr. Buckle has said of him:--"The rising sun often found him, after a night spent in incessant labour, still at the anvil or turning-lathe; for with his own hands he would make such articles as he would not intrust to unskilful ones." In 1799 he took out a patent (No. 2340), embodying some very important inventions. First, it included the endless screw working into a toothed-wheel, for boring steam-cylinders, which is still in use.

Second, the casting of a steam-jacket in one cylinder, instead of being made in separate segments bolted together with caulked joints, as was previously done. Third, the new double-D slide-valve, by which the construction and working of the steam-engine was simplified, and the loss of steam saved, as well as the cylindrical valve for the same purpose. And fourth, improved rotary engines. One of the latter was set to drive the machines in his private workshop, and continued in nearly constant work and in perfect use for about thirty years.

In 1801, Murdock sent his two sons William and John to the Ayr Academy, for the benefit of Scotch education. In the summer-time they spent their vacation at Bellow Mill, which their grandfather still continued to occupy. They fished in the river, and "caught a good many trout."

The boys corresponded regularly with their father at Birmingham. In 1804, they seem to have been in a state of great excitement about the expected landing of the French in Scotland. The volunteers of Ayr amounted to 300 men, the cavalry to 150, and the riflemen to 50. "The riflemen," says John, "go to the seash.o.r.e every Sat.u.r.day to shoot at a target. They stand at 70 paces distant, and out of 100 shots they often put in 60 bullets!" William says, "Great preparations are still making for the reception of the French. Several thousand of pikes are carried through the town every week; and all the volunteers and riflemen have received orders to march at a moment's warning." The alarm, however, pa.s.sed away. At the end of 1804, the two boys received prizes; William got one in arithmetic and another in the Rector's composition cla.s.s; and John also obtained two, one in the mathematical cla.s.s, and the other in French.

To return to the application of gas for lighting purposes. In 1801, a plan was proposed by a M. Le Blond for lighting a part of the streets of Paris with gas. Murdock actively resumed his experiments; and on the occasion of the Peace of Amiens in March, 1802, he made the first public exhibition of his invention. The whole of the works at Soho were brilliantly illuminated with gas.

The sight was received with immense enthusiasm. There could now be no doubt as to the enormous advantages of this method of producing artificial light, compared with that from oil or tallow. In the following year the manufacture of gas-making apparatus was added to the other branches of Boulton and Watts' business, with which Murdock was now a.s.sociated,--and as much as from 4000L. to 5000L. of capital were invested in the new works. The new method of lighting speedily became popular amongst manufacturers, from its superior safety, cheapness, and illuminating power. The mills of Phillips and Lee of Manchester were fitted up in 1805; and those of Burley and Kennedy, also of Manchester, and of Messrs. Gott, of Leeds, in subsequent years.

Though Murdock had made the uses of gas-lighting perfectly clear, it was some time before it was proposed to light the streets by the new method. The idea was ridiculed by Sir Humphry Davy, who asked one of the projectors if he intended to take the dome of St. Paul's for a gasometer! Sir Waiter Scott made many clever jokes about those who proposed to "send light through the streets in pipes;" and even Wollaston, a well known man of science, declared that they "might as well attempt to light London with a slice from the moon." It has been so with all new projects--with the steamboat, the locomotive, and the electric telegraph. As John Wilkinson said of the first vessel of iron which he introduced, "it will be only a nine days' wonder, and afterwards a Columbus's egg."

On the 25th of February, 1808, Murdock read a paper before the Royal Society "On the Application of Gas from Coal to economical purposes."

He gave a history of the origin and progress of his experiments, down to the time when he had satisfactorily lit up the premises of Phillips and Lee at Manchester. The paper was modest and una.s.suming, like everything he did.

It concluded:--"I believe I may, without presuming too much, claim both the first idea of applying, and the first application of this gas to economical purposes."[9] The Royal Society awarded Murdock their large Rumford Gold Medal for his communication.

Men of Invention and Industry Part 9

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