An Autobiography [23]
of his inventions was the method of riveting by compression instead of by blows of the hammer. It originated in a slight circumstance. One wet, wintry Sunday morning he went into his workroom. There were some slight mechanical repairs to be performed upon a beautiful little stove of his own construction. To repair it, iron rivets were necessary to make it serviceable. But as the hammering of the hot rivets would annoy his neighbours by the unwelcome sound of the hammer, he solved the difficulty by using the jaws of his bench vice to squeeze in the hot rivets when put into their places. The stove was thus quickly repaired in the most perfect silence.
This was, perhaps, the first occasion on which a squeeze or compressive action was substituted for the percussive action of the hammer, in closing red-hot rivets, for combining together pieces of stout sheet or plate iron. This system of riveting was long afterwards patented by Smith of Deanston in combination with William Fairbairn of Manchester; and it was employed in riveting the plates used in the construction of the bridges over the River Conway and the Menai Straits.
It is also universally used in boiler and girder making, and in all other wrought-iron structures in which thorough sound riveting is absolutely essential; and by the employment of hydraulic power in a portable form a considerable portion of iron shipbuilding is effected by the silent squeeze system in place of hammers, much to the advantage of the soundness of the work. My father frequently, in aftertimes, practised this mode of riveting by compression in place of using the blow of a hammer; and in remembrance of the special circumstances under which he contrived this silent and most effective method of riveting, he named it "The Sunday Rivet."
CHAPTER 3. An Artist's Family.
Although Alexander Nasmyth had to a considerable extent lost his aristocratic connection as a portrait painter, yet many kind and generous friends gathered round him. During his sojourn in Italy, in 1783, he had the good fortune to make the acquaintance of Sir James Hall of Dunglass, Haddingtonshire. The acquaintance afterwards ripened into a deeply-rooted friendship.
During the winter season Sir James resided with his family in his town house in George Street. He was passionately attached to the pursuit of art and science. He practised the art of painting in my father's room, and was greatly helped by him in the requisite manipulative skill. Sir James was at that time engaged in writing his well-known essay "On the Origin of Gothic Architecture," and in this my father was of important use to him. He executed the greater number of the illustrations for this beautiful work. The book when published had a considerable influence in restoring the taste of architects to a style which they had heretofore either neglected or degraded.
Besides his enthusiasm in art and architecture, Sir James devoted a great deal of time to the study of geology. The science was then in its infancy. Being an acute observer, Hall's attention was first attracted to the subject by the singular geological features of the sea-coast near his mansion at Dunglass. The neighbourhood of Edinburgh also excited his interest. The upheaval of the rocks by volcanic heat --as seen in the Castle Hill, the Calton Hill, and Arthur's Seat-- formed in a great measure the foundation of the picturesque beauty of the city. Those were the days of the Wernerian and Huttonian controversy as to the origin of the changes on the surface of the earth. Sir James Ball was President of the Edinburgh Royal Society, and necessarily took an anxious interest in the discussions. He observed and experimented, and established the true volcanic nature of the composition and formation of the rocks and mountains which surround Edinburgh.
I have been led to speak of this subject, because when a boy I was often present at the discussions of these great principles. My father, Sir James Hall, Professors Playfair and Leslie, took their accustomed walks round Edinburgh,
This was, perhaps, the first occasion on which a squeeze or compressive action was substituted for the percussive action of the hammer, in closing red-hot rivets, for combining together pieces of stout sheet or plate iron. This system of riveting was long afterwards patented by Smith of Deanston in combination with William Fairbairn of Manchester; and it was employed in riveting the plates used in the construction of the bridges over the River Conway and the Menai Straits.
It is also universally used in boiler and girder making, and in all other wrought-iron structures in which thorough sound riveting is absolutely essential; and by the employment of hydraulic power in a portable form a considerable portion of iron shipbuilding is effected by the silent squeeze system in place of hammers, much to the advantage of the soundness of the work. My father frequently, in aftertimes, practised this mode of riveting by compression in place of using the blow of a hammer; and in remembrance of the special circumstances under which he contrived this silent and most effective method of riveting, he named it "The Sunday Rivet."
CHAPTER 3. An Artist's Family.
Although Alexander Nasmyth had to a considerable extent lost his aristocratic connection as a portrait painter, yet many kind and generous friends gathered round him. During his sojourn in Italy, in 1783, he had the good fortune to make the acquaintance of Sir James Hall of Dunglass, Haddingtonshire. The acquaintance afterwards ripened into a deeply-rooted friendship.
During the winter season Sir James resided with his family in his town house in George Street. He was passionately attached to the pursuit of art and science. He practised the art of painting in my father's room, and was greatly helped by him in the requisite manipulative skill. Sir James was at that time engaged in writing his well-known essay "On the Origin of Gothic Architecture," and in this my father was of important use to him. He executed the greater number of the illustrations for this beautiful work. The book when published had a considerable influence in restoring the taste of architects to a style which they had heretofore either neglected or degraded.
Besides his enthusiasm in art and architecture, Sir James devoted a great deal of time to the study of geology. The science was then in its infancy. Being an acute observer, Hall's attention was first attracted to the subject by the singular geological features of the sea-coast near his mansion at Dunglass. The neighbourhood of Edinburgh also excited his interest. The upheaval of the rocks by volcanic heat --as seen in the Castle Hill, the Calton Hill, and Arthur's Seat-- formed in a great measure the foundation of the picturesque beauty of the city. Those were the days of the Wernerian and Huttonian controversy as to the origin of the changes on the surface of the earth. Sir James Ball was President of the Edinburgh Royal Society, and necessarily took an anxious interest in the discussions. He observed and experimented, and established the true volcanic nature of the composition and formation of the rocks and mountains which surround Edinburgh.
I have been led to speak of this subject, because when a boy I was often present at the discussions of these great principles. My father, Sir James Hall, Professors Playfair and Leslie, took their accustomed walks round Edinburgh,