United States or Slovenia ? Vote for the TOP Country of the Week !
The bow-and-string bridge has since been largely employed in spanning wide spaces over which suburban and other railways pass, and in roofing over such stations as those at Birmingham, Charing Cross, and other Great Metropolitan centres, as well as in bow-and-string bridges over rivers. Another of his inventions was the method of riveting by compression instead of by blows of the hammer.
He invented this important method of construction about the year 1794. The first bow-and-string bridge was erected in the island of St. Helena over a deep ravine. Many considered, from its apparent slightness, that it was not fitted to sustain any considerable load.
It was in this workroom that I first began to handle mechanical tools. It was my primary technical school the very foreground of my life. I may mention one or two of my father's mechanical efforts, or rather his inventions in applied science. One of the most important was the "bow-and-string bridge," as he first called it, to which he early directed his attention.
Word Of The Day