The jibs of transporters are often made to slide forward, or lift up, so as to be out of the way when not in use.
Various methods of making the connexions between the large main cables and the subscribers are in use.
About that time a thorough reform of the machinery in use was effected whereby the number of hands employed was reduced, but the yearly production doubled or trebled.
This system required two line wires, and, although a remarkably serviceable apparatus and in use for many years, is no longer employed.
Hughes's form was taken up by the French government in 1860, and is very largely in use not only in France but in all European countries, including Great Britain.
