Abstract :
The electric impulse which turned on the new push-button communication center at American Steel and Wise Company. Cleveland, Ohio, was obtained by the fusing of a wire suspended above an iron trough at one of the company´s Cleveland blast furnaces. The private telegraph switching center will speed the flow ot messages between 149 United States Steel plants and offices in 86 cities. The new center replaces a manually controlled center which has been in use for many years.
