In 1804, Dr. Henry delivered a course of lectures on chemistry, at Manchester, in which he showed the mode of producing gas from coal, and the facility and advantage of its use. Dr, Henry analyzed the composition and investigated the properties of carburetted hydrogen gas. His experiments were numerous and accurate, and made upon a variety of substances; and having obtained the gas from wood, peat, different kinds of coal, oil, wax, &c. he endeavoured to estimate the relative quantity of light yielded by each.
In 1805, Mr. Samuel Clegg, to whom the world is much indebted for the improvements he subsequently introduced into the manufacture of gas, having left Soho, directed his attention to the construction of gas apparatus. The first he erected was in the cotton mill of Mr. H Lodge, near Halifax, in Yorkshire. Mr. Josiah Pemberton, one of those ingenious men happily not rare in the centre of our manufactures, whose minds are perpetually employed on the improvement of mechanical contrivances, and who, as soon as they have accomplished one discovery, leave others to reap the benefit, and themselves pursue the chase alter new inventions, had for some time been experimenting on the nature of gas. A resident of Birmingham, his attention was probably roused by the exhibition at Soho; and such was the fertility of his invention, and his practical skill as a mechanic, that it has been observed by those who know him, that he never undertook to make an article without inventing an improvement in its construction. About 1806, he exhibited gas-lights in a variety of forms, and with great brilliance, at the front of his manufactory in Birmingham.
In 1808 he constructed an apparatus, applicable to several uses, for Mr. Benjamin Cooke, a manufacturer of brass tubes, gilt toys, and other articles. In 1808, Mr. Murdoch communicated to the Royal Society a very interesting account of his successful application of coal gas to lighting the extensive establishment of Messrs. Phillips and Lea. For this communication, Count Rumford's gold medal was presented to him. Mr. Murdoch's statements threw great light on the comparative advantage of gas and candles, and contained much useful information on the expenses of production and management.
Early in 1809, Mr. Samuel Clegg communicated to the Society of Arts his plan of an apparatus for lighting manufactories with gas, for which he received a silver medal. In this year also, Mr. Clegg erected a gas apparatus in Mr. Harris's manufactory at Coventry.
It was natural to suppose that all these circumstances should eventually produce an impression on the country; consequently about this time much attention was excited towards gas-lighting, and much utility anticipated from a general application of it to public purposes. In this year 1809, accordingly, the first application was made to parliament for an act to incorporate a company, with the view of carrying on its processes more effectually and beneficially. The movers in this project were some of the more intelligent and persevering subscribers to a New Light and Heat Company, projected by Mr. Winsor. They were opposed by some on the ground of their designs being visionary and fraught with danger; and by Mr. Murdoch on the plea of priority of invention, which entitled him to exclusive privileges if he chose to avail himself of them. This gave rise to a long and minute investigation of the subject before a committee of the House of Commons. The application terminated unsuccessfully; and the testimony of Mr. Aceum, exposed him to the animadversions of Mr. Brougham. In 1810, however, the application was renewed by the same parties, and though some opposition was encountered, and considerable expense incurred, the bill passed, but not without great alterations; and the present London and Westminster Chartered Gas-Light and Coke Company was established. The proceedings of this company after the act was obtained comprise a most important period in the history of this invention. During the first few years of their operations large sums of money were expended in experiments, and very few beneficial results were obtained. The undertaking was complicated and difficult, and not only required the guidance of experience, but the assistance of a scientific education and a fertile invention. These requisites were found in the person of Mr. Samuel Clegg, under whose able direction and superintendence the principal works of the company, at their different stations, were erected. From this period various improvements were gradually introduced into almost every part of the apparatus. In 1816, Mr. Clegg obtained the patent for his horizontal rotative retort; his apparatus for purifying coal gas with cream of lime; for his rotative gas meter; and self-acting governor; and altogether by his exertions the London and Westminster Company's affairs assumed a new and flattering aspect.
For reasons which are not assigned, in 1817, Mr. Clegg retired from the service of this establishment.
In this year, 1817, at the three stations belonging to the Chartered Gas Company, twenty-five chaldron of coal were daily carbonized, producing 300,000 cubic feet of gas, which was equal to the supply of 75,000 Argand lamps, each yielding the light of six candles. At the City Gas Works, in Dorset-street, Black-friars, the quantity of coal daily carbonized amounted to, three chaldron, which afforded a quantity of gas adequate to the supply of 1,500 Argand lamps; so that twenty-eight chaldron of coal were daily carbonized at that time, and 76,500 lights supplied by those two companies only.
At this period the principal object of attention in the manufacture of gas was its purification. Mr. D. Wilson, of Dublin, took out a patent for purifying coal gas by means of the chemical action of ammoniacal gas. Another plan was devised by Mr. Reuben Phillips, of Exeter, who obtained a patent for the purification of coal gas by the use of dry lime. Mr. G. Holworthy, in 1818, took out a patent for a method of purifying it by causing the gas, in a highly-condensed state, to pass through iron retorts heated to a dark red. For this object and several others, having in view improvements upon the ordinary method, many other patents were procured.
OIL gas now appeared in the field as a rival of COAL gas. In 1815, Mr. John Taylor had obtained a patent for an apparatus for the decomposition of oil and other animal substances; but the circumstance which more particularly attracted the public attention to be directed to oil gas was the erection of the patent apparatus at Apothecary's Hall, by Messrs. Taylors and Martineau; and the way was prepared for an application to parliament for the establishment of an Oil Gas Company by sundry papers in journals, and by the recommendations of Sir William Congreve, who had been employed by the Secretary of State to inspect the state of the gas manufactories in the metropolis. This application, made in the year 1825, proved unfortunate.