A HISTORY OF EDISON'S WEST ORANGE LABORATORY 1887-1931

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The main criterion developed Holland for the new business machine was simplicity operation and appearance— all working parts should concealed the housing. The name the Edison dictating machine was changed the Ediphone 1916 and completely new machine introduced shortly afterwards. The essence the new business phonograph was a simple, sturdy machine that minimized the number breakdowns in the hands careless user. The first innovation the Ediphone was the much cleaner design of the top plate. (Illus 11-5, Ediphone photo) Gone the clutter of the spectacle arrangement two diaphragms and the many adjustment screws. had decided that soon the disc machine tooling was complete, the Works would turn its attention manufacturing business machines. The belt drive and gearing was enclosed metal . Production these motors was under the control the new small motor department which was producing about 100 day in 1916. The Ediphone was designed primariy a dictating machine and had one totally enclosed diaphragm and one lever arrangement lower the cylinder.XI- 9 This decreased breakdowns and promised make the machine more reliable. Here was the basic concept of . 1914, the management TAE Inc. 17 the modern dictating machine. The heart of the new machine was the electric motor which could operate on several different voltages, including alternating current. Newman Holland worked this machine for several years 18 and did not complete his design until late 1912