Developments in the manufacture of copper wire

This paper covers interesting developments in the manufacture of copper wire and contains a description of a copper rod and wire mill designed to meet the new requirements. It also includes a brief survey of the copper rolling and wire drawing art at the time the investigation was started; a summary of tests made in varying the practise in rod rolling and wire drawing, and an outline of the work done by the Bell System engineers in developing and designing new types of wire drawing machinery. The economies in floor space and plant investment due to the use of more compact and higher-speed machinery are outlined. Some of the outstanding features in plant arrangement which contribute to more efficient operation are discussed in the concluding pages.