our mercantile marine. Steel forms their boilers,their propeller shafts, their hulls, their masts and spars, their standing rigging, their cable chains and anchors, and also their guns and armour-plating. This new material has covered with a network of steel rails the surface of every country in Europe, and in America alone there are no less than 175,000 miles of Bessemer steel rails.' These steel rails last six times longer than if laid of iron.
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Bessemer was knighted in 1879, and has received many gold medals from scientific institutions. In addition he has, to use his own words, received in the form of royalties 1,057,748 of the beautiful little gold medals (sovereigns) issued by her Majesty's Mint. The method chosen by the Americans to perpetuate his name has been the founding of the growing centre of industry called Bessemer in Indiana, while Bessemer, in Pennsylvania, is the seat of the great Edgar Thompson steel-works. Thus the man who was at first
neglected by government has become wealthy beyond the dreams of avarice, and his name is immortal in the annals of our manufac-
turing industry.
SIR CHARLES WILLIAM SIEMENS AND THE SIEMENS PROCESS.
Another pioneer in the manufacture of steel and iron was Charles William Siemens, the seventh child of a German landowner, who was born at Lenthe, near[Pg 32] Hanover, 4th April 1823. He showed an affectionate and sensitive disposition while very young, and a strong faculty of observation. He received a good plain education at Lubeck, and in deference to his brother Werner he agreed to become an engineer, and accordingly was sent to an industrial school at Magdeburg in 1838, where he also learned languages, including English; mathematics he learned from his interested brother. He left Magdeburg in 1841 in order to increase his scientific knowledge at Gottingen, and there he studied chemistry and physics, with the view of becoming an engineer. Werner, his elder brother,
was still his good genius, and after the death of their parents counselled and encouraged him, and looked upon him as a probable future colleague. They corresponded with one another, not only about family affairs, but also about the scientific and technical subjects in which both were engrossed. This became a life-long habit with the brothers Siemens. One early letter from William described a new kind of valve-gearing which he had invented for Cornish steam-engines. Then the germ of the idea of what was afterwards known as the 'chronometric governor' for steam-engines was likewise communicated in this way. Mr Pole says that his early letters were significant of the talent and capacity of the writer. 'They evince an acuteness of perception in mechanical matters, a power of close and correct reasoning, a sound judgment, a fertility of invention, and an ease and accuracy of expression which, in a youth of nineteen, who had only a few months' experience in a workshop, are extraordinary, and undoubtedly shadow forth the brilliant future he attained in the engineering world.'
Werner in 1841 had taken out a patent for his method of electro-gilding, while William early in 1843 paid his first visit to England, travelling by way of Hamburg. He took up his abode in a little inn called the 'Ship and[Pg 33] Star,' at Sparrow Corner, near the Minories. In an address as President of the Midland Institute, Birmingham, on 28th October 1881, he related his first experiences in England, and how he secured his first success there.
Mr Siemens said: 'That form of energy known as the electric current was nothing more than the philosopher's delight forty years ago; its first application may be traced to this good town of Birmingham, where Mr George Richards Elkington, utilising the discoveries of Davy, Faraday, and Jacobi, had established a practical process of electroplating in 1842.... Although I was only a young student of Gottingen, under twenty years of age, who had just entered upon his practical career with a mechanical engineer, I joined my brother Werner Siemens, then a young lieutenant of artillery in the Prussian service, in his endeavour to accomplish electro-gilding.... I tore myself away from the narrow circumstances surrounding me, and landed at the East End of London, with only a few pounds in my pocket and without friends, but an ardent confidence of ultimate success within my breast.
'I expected to find some office in which inventions were examined into, and rewarded if found meritorious, but no one could direct me to such a place. In walking along Finsbury Pavement I saw written up in large letters, "So-and-So"--I forget the name--
"undertaker," and the thought struck me that this must be the place I was in quest of; at any rate, I thought that a person advertising himself as an "undertaker" would not refuse to look into my invention, with the view of obtaining for me the sought for recognition or reward. On entering the place I soon convinced myself, however, that I came decidedly too soon for the kind of enterprise there contemplated.' By dint of perseverance, however, Siemens secured a letter from Messrs Poole and Carpmaell, of the Patent Office,
to Mr Elkington of Birmingham. Elkington and his partner[Pg 34] Josiah Mason both met the young inventor in such a spirit of fairness that, as he says, he returned to his native country, and to his mechanical engineering, 'a comparative Croesus.' After the lapse of forty years his heart still beat quick when thinking of this determining incident in his career.
The sum which Elkington paid him for his 'thermo-electrical battery' for depositing solutions of gold, silver, and copper was PS1600, less PS110 for the cost of the patent. Although quite successful at the time, other and cheaper processes speedily supplanted it; but the young German had gained a footing and the money he needed for future experiments. When he came back to Germany he was looked upon as quite a hero by his admiring family circle. It was indeed a creditable exploit for a youth of twenty. When he returned to England again in February 1844, he received so much encouragement from leading engineers and scientific men for his 'chronometric governor,' that he decided to settle permanently there, and he became a naturalised British subject in 1859. He joined with a civil engineer, named Joseph Woods, for the promotion and sale of his patents. 'Anastatic printing' was one of his early inventions, which, however, never became profitable. Then came schemes in paper-making, new methods of propelling ships, winged rockets, and locomotives on new principles, all of which were a continual drain on his own and his friends' resources without a correspond-
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ing return, so that in 1845 he took a situation and earned some money by railway work, which enabled him to pay another visit to Germany. In 1846, undaunted by previous failures, he threw himself heartily into the study of the action of heat as a power-giving agent, and invented an arrangement known as the 'regenerator' for saving certain portions of this waste. As afterwards applied to furnaces for iron, steel, zinc, glass, and other works, it was[Pg 35] pronounced by Sir Henry Bessemer a beautiful invention, at once the most philosophic in principle, the most powerful in action, and the most economic of all the contrivances for producing heat by the combustion of coal. He now secured an appointment in 1849 with Fox & Henderson, Birmingham, at a fixed salary of PS400 a year, and his interest in his patent. Here he profited largely by the experience gained, but the engagement terminated in 1851, when he afterwards settled as a civil engineer in 7 John Street, Adelphi, in March 1852.
His next great achievement was the production of steel direct from the raw ores by means of his regenerative furnace, which the President of the Board of Trade in 1883 mentioned in the House of Commons as one of the most valuable inventions ever produced under the protection of the English patent law, and he said further that it was then being used in almost every industry in the kingdom. Siemens had spent fourteen years in perfecting this regenerative furnace, and it took him other fourteen to utilise it, and perfect it in making steel direct from the raw ores. Martin of Sireil, who made one or two additions to the Siemens steel furnace, has been termed its inventor, but this claim has no foundation. What is known, however, as the 'Siemens-Martin process' is now competing very effectively with the Bessemer process. It consists essentially in first obtaining a bath of melted pig-iron of high quality, and then adding to this pieces of wrought-iron scrap or Bessemer scrap, such as crop ends of rails, shearings of plates, &c. These, though practically non-infusible in large quantities by themselves, become dissolved or fused in such a bath if added
