James Beaumont Neilson was born at Shettleston, a roadside village about three miles eastward of Glasgow, on the 22nd of June, 1792. His parents belonged to the working class. His father's earnings during many laborious years of his life did not exceed sixteen shillings a week. He had been bred to the trade of a mill-wright, and was for some time in the employment of Dr. Roebuck as an engine-wright at his colliery near Boroughstoness. He was next employed in a like capacity by Mr. Beaumont, the mineral-manager of the collieries of Mrs. Cunningham of Lainshaw, near Irvine in Ayrshire; after which he was appointed engine-wright at Ayr, and subsequently at the Govan Coal Works near Glasgow, where he remained until his death. It was while working at the Irvine Works that he first became acquainted with his future wife, Marion Smith, the daughter of a Renfrewshire bleacher, a woman remarkable through life for her clever, managing, and industrious habits. She had the charge of Mrs. Cunningham's children for some time after the marriage of that lady to Mr. Beaumont, and it was in compliment to her former mistress and her husband that she named her youngest son James Beaumont after the latter.
The boy's education was confined to the common elements of reading, writing, and arithmetic, which he partly acquired at the parish school of Strathbungo near Glasgow, and partly at the Chapel School, as it was called, in the Gorbals at Glasgow. He had finally left school before he was fourteen. Some time before he left, he had been partially set to work, and earned four shillings a week by employing a part of each day in driving a small condensing engine which his father had put up in a neighbouring quarry. After leaving school, he was employed for two years as a gig boy on one of the winding engines at the Govan colliery. His parents now considered him of fit age to be apprenticed to some special trade, and as Beaumont had much of his father's tastes for mechanical pursuits, it was determined to put him apprentice to a working engineer. His elder brother John was then acting as engineman at Oakbank near Glasgow, and Beaumont was apprenticed under him to learn the trade. John was a person of a studious and serious turn of mind, and had been strongly attracted to follow the example of the brothers Haldane, who were then exciting great interest by their preaching throughout the North; but his father set his face against his son's "preaching at the back o' dikes," as he called it; and so John quietly settled down to his work. The engine which the two brothers managed was a very small one, and the master and apprentice served for engineman and fireman. Here the youth worked for three years, employing his leisure hours in the evenings in remedying the defects of his early education, and endeavouring to acquire a knowledge of English grammar, drawing, and mathematics.
On the expiry of his apprenticeship, Beaumont continued for a time to work under his brother as journeyman at a guinea a week; after which, in 1814, he entered the employment of William Taylor, coal-master at Irvine, and he was appointed engine-wright of the colliery at a salary of from 70L. to 80L. a year. One of the improvements which he introduced in the working of the colliery, while he held that office, was the laying down of an edge railway of cast-iron, in lengths of three feet, from the pit to the harbour of Irvine, a distance of three miles. At the age of 23 he married his first wife, Barbara Montgomerie, an Irvine lass, with a "tocher" of 250L. This little provision was all the more serviceable to him, as his master, Taylor, becoming unfortunate in business, he was suddenly thrown out of employment, and the little fortune enabled the newly-married pair to hold their heads above water till better days came round. They took a humble tenement, consisting of a room and a kitchen, in the Cowcaddens, Glasgow, where their first child was born.
About this time a gas-work, the first in Glasgow, was projected, and the company having been formed, the directors advertised for a superintendent and foreman, to whom they offered a "liberal salary." Though Beaumont had never seen gaslight before, except at the illumination of his father's colliery office after the Peace of Amiens, which was accomplished in a very simple and original manner, without either condenser, purifier, or gas-holder, and though he knew nothing of the art of gas-making, he had the courage to apply for the situation. He was one of twenty candidates, and the fortunate one; and in August, 1817, we find him appointed foreman of the Glasgow Gasworks, for five years, at the salary of 90L. a year. Before the expiry of his term he was reappointed for six years more, at the advanced salary of 200L., with the status of manager and engineer of the works. His salary was gradually increased to 400L. a year, with a free dwelling-house, until 1847, when, after a faithful service of thirty years, during which he had largely extended the central works, and erected branch works in Tradeston and Partick, he finally resigned the management.
The situation of manager of the Glasgow Gas-works was in many respects well suited for the development of Mr. Neilson's peculiar abilities. In the first place it afforded him facilities for obtaining theoretical as well as practical knowledge in Chemical Science, of which he was a diligent student at the Andersonian University, as well as of Natural Philosophy and Mathematics in their higher branches. In the next place it gave free scope for his ingenuity in introducing improvements in the manufacture of gas, then in its infancy. He was the first to employ clay retorts; and he introduced sulphate of iron as a self-acting purifier, passing the gas through beds of charcoal to remove its oily and tarry elements. The swallow-tail or union jet was also his invention, and it has since come into general use.
While managing the Gas-works, one of Mr. Neilson's labours of love was the establishment and direction by him of a Workmen's Institution for mutual improvement. Having been a workman himself, and experienced the disadvantages of an imperfect education in early life, as well as the benefits arising from improved culture in later years, he desired to impart some of these advantages to the workmen in his employment, who consisted chiefly of persons from remote parts of the Highlands or from Ireland. Most of them could not even read, and his principal difficulty consisted in persuading them that it was of any use to learn. For some time they resisted his persuasions to form a Workmen's Institution, with a view to the establishment of a library, classes, and lectures, urging as a sufficient plea for not joining it, that they could not read, and that books would be of no use to them. At last Mr. Neilson succeeded, though with considerable difficulty, in inducing fourteen of the workmen to adopt his plan. Each member was to contribute a small sum monthly, to be laid out in books, the Gas Company providing the members with a comfortable room in which they might meet to read and converse in the evenings instead of going to the alehouse. The members were afterwards allowed to take the books home to read, and the room was used for the purpose of conversation on the subjects of the books read by them, and occasionally for lectures delivered by the members themselves on geography, arithmetic, chemistry, and mechanics. Their numbers increased so that the room in which they met became insufficient for their accommodation, when the Gas Company provided them with a new and larger place of meeting, together with a laboratory and workshop. In the former they studied practical chemistry, and in the latter they studied practical mechanics, making for themselves an air pump and an electrifying machine, as well as preparing the various models used in the course of the lectures. The effects on the workmen were eminently beneficial, and the institution came to be cited as among the most valuable of its kind in the kingdom.[1]
Mr. Neilson throughout watched carefully over its working, and exerted himself in all ways to promote its usefulness, in which he had the zealous co-operation of the leading workmen themselves, and the gratitude of all. On the opening of the new and enlarged rooms in 1825, we find him delivering an admirable address, which was thought worthy of republication, together with the reply of George Sutherland, one of the workmen, in which Mr. Neilson's exertions as its founder and chief supporter were gratefully and forcibly expressed.[2]
It was during the period of his connection with the Glasgow Gas-works that Mr. Neilson directed his attention to the smelting of iron. His views in regard to the subject were at first somewhat crude, as appears from a paper read by him before the Glasgow Philosophical Society early in 1825. It appears that in the course of the preceding year his attention had been called to the subject by an iron-maker, who asked him if he thought it possible to purify the air blown into the blast furnaces, in like manner as carburetted hydrogen gas was purified. The ironmaster supposed that it was the presence of sulphur in the air that caused blast-furnaces to work irregularly, and to make bad iron in the summer months. Mr. Neilson was of opinion that this was not the true cause, and he was rather disposed to think it attributable to the want of a due proportion of oxygen in summer, when the air was more rarefied, besides containing more aqueous vapour than in winter. He therefore thought the true remedy was in some way or other to throw in a greater proportion of oxygen; and he suggested that, in order to dry the air, it should be passed, on its way to the furnace, through two long tunnels containing calcined lime. But further inquiry served to correct his views, and eventually led him to the true theory of blasting.
Shortly after, his attention was directed by Mr. James Ewing to a defect in one of the Muirkirk blast-furnaces, situated about half a mile distant from the blowing-engine, which was found not to work so well as others which were situated close to it. The circumstances of the case led Mr. Neilson to form the opinion that, as air increases in volume according to temperature, if he were to heat it by passing it through a red-hot vessel, its volume would be increased, according to the well-known law, and the blast might thus be enabled to do more duty in the distant furnace. He proceeded to make a series of experiments at the Gas-works, trying the effect of heated air on the illuminating power of gas, by bringing up a stream of it in a tube so as to surround the gas-burner. He found that by this means the combustion of the gas was rendered more intense, and its illuminating power greatly increased. He proceeded to try a similar experiment on a common smith's fire, by blowing the fire with heated air, and the effect was the same; the fire was much more brilliant, and accompanied by an unusually intense degree of heat.
Having obtained such marked results by these small experiments, it naturally occurred to him that a similar increase in intensity of combustion and temperature would attend the application of the process to the blast-furnace on a large scale; but being only a gas-maker, he had the greatest difficulty in persuading any ironmaster to permit him to make the necessary experiment's with blast-furnaces actually at work. Besides, his theory was altogether at variance with the established practice, which was to supply air as cold as possible, the prevailing idea being that the coldness of the air in winter was the cause of the best iron being then produced. Acting on these views, the efforts of the ironmasters had always been directed to the cooling of the blast, and various expedients were devised for the purpose. Thus the regulator was painted white, as being the coolest colour; the air was passed over cold water, and in some cases the air pipes were even surrounded by ice, all with the object of keeping the blast cold. When, therefore, Mr. Neilson proposed entirely to reverse the process, and to employ hot instead of cold blast, the incredulity of the ironmasters may well be imagined. What! Neilson, a mere maker of gas, undertake to instruct practical men in the manufacture of iron! And to suppose that heated air can be used for the purpose! It was presumption in the extreme, or at best the mere visionary idea of a person altogether unacquainted with the subject!