Nasmyth subsequently applied the principle of his steam hammer to a pile-driving machine which he invented in 1843. His first full scale machine used a four-ton hammer-block, and a rate of eighty blows per minute. The pile driver was first demonstrated in a contest with a team using the conventional method at Devonport on 3 July 1845. He drove a pile 70 feet long and 18 inches squared in four and a half minutes, while the conventional method required twelve hours. This was a great success, and many orders for his pile driver resulted. It was used for many large scale constructions all over the world in the next few years, such as the High Level Bridge at Newcastle upon Tyne and the Nile barrage at Aswan, Egypt (Aswan Low Dam).