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CHAPTER IV

PARTNERSHIP WITH ROEBUCK

APITAL was essential to perfect and place the

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engine upon the market; it would require several thousand pounds. Had Watt been a rich man, the path would have been clear and easy, but he was poor, having no means but those derived from his instrument-making business, which for some time had necessarily been neglected. Where was the daring optimist who could be induced to risk so much in an enterprise of this character, where result was problematical. Here, Watt's best friend, Professor Black, who had himself from his own resources from time to time relieved Watt's pressing necessities, proved once more the friend in time of need. Black thought of Dr. Roebuck, founder of the celebrated Carron Iron Works near by, which Burns apostrophised in these lines, when denied admittance:

"We cam na here to view your works

"In hopes to be mair wise,

"But only lest we gang to hell

"It may be nae surprise.”

He was approached upon the subject by Dr. Black, and finally, in September, 1765, he invited Watt to

visit him with the Professor at his country home, and urged him to press forward his invention "whether he pursued it as a philosopher or as a man of business." In the month of November Watt sent Roebuck drawings of a covered cylinder and piston to be cast at his works, but it was so poorly done as to be useless. "My principal difficulty in making engines," he wrote Roebuck, "is always the smith-work."

By this time, Watt was seriously embarrassed for money. Experiments cost much and brought in nothing. His duty to his family required that he should abandon these for a time and labor for means to support it. He determined to begin as a surveyor, as he had mastered the art when making surveying instruments, as was his custom to study and master wherever he touched. He could never rest until he knew all there was to know about anything. Of course he succeeded. Everybody knew he would, and therefore business came to him. Even a public body, the magistrates of Glasgow, had not the slightest hesitation in obtaining his services to survey a canal which was to open a new coal field. He was also commissioned to survey the proposed Forth and Clyde canal. Had he been content to earn money and become leading surveyor or engineer of Britain, the world might have waited long for the forthcoming giant destined to do the world's work; but there was little danger of this. The world had not a temptation

that could draw Watt from his appointed work. His thoughts were ever with his engine, every spare moment being devoted to it. Roebuck's speculative and enterprising nature led him also into the entrancing field of steam. It haunted him until finally, in 1767, he decided to pay off Watt's debts to the amount of a thousand pounds, provide means for further experiments, and secure a patent for the engine. In return, he became owner of two thirds of the invention.

Next year Watt made trial of a new and larger model, with unsatisfactory results upon the first trial. He wrote Roebuck that "by an unforeseen "misfortune, the mercury found its way into the "cylinder and played the devil with the solder." Only after a month's hard labor was the second trial made, with very different and indeed astonishing results "success to my heart's content," exclaimed Watt. Now he would pay his long-promised debt to his partner Roebuck, to whom he wrote, "I sincerely "wish you joy of this successful result, and hope it will "make some return for the obligations I owe you." The visit of congratulation paid to his partner Roebuck, was delightful. Now were all their griefs “in the deep "bosom of the ocean buried" by this recent success. Already they saw fortunes in their hands, so brightly shone the sun these few but happy days. But the old song has its lesson:

"I've seen the morning the gay hills adorning,
"I've seen it storming before the close of day."

Instead of instant success, trying days and years were still before them. A patent was decided upon, a matter of course and almost of formality in our day, but far from this at that time, when it was considered monopolistic and was highly unpopular on that account. Watt went to Berwick-on-Tweed to make the required declaration before a Master in Chancery. In August, 1768, we find him in London about the patent, where he became so utterly wearied with the delays, and so provoked with the enormous fees required to protect the invention, that he wrote his wife in a most despairing mood. She administered the right medicine in reply, "I beg "you will not make yourself uneasy though things do "not succeed as you wish. If the engine will not do, "something else will; never despair." Happy man whose wife is his best doctor. From the very summit of elation, to which he had been raised by the success of the model, Watt was suddenly cast down into the valley of despair to find that only half of his heavy task was done, and the hill of difficulty still loomed before. Reaction took place, and the fine brain, so long strained to utmost tension, refused at intervals to work at high pressure. He became subject to recurring fits of despondency, aggravated, if not primarily caused by anxiety for his family, who could not be

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