THE MOTOR DRIVE 
By Asst. Naval Constructor Richard D. Gatewood, U. S. Navy.
1. Both in this country and abroad the various phases, and there are many, of this subject have been taken up in papers published by the different engineering societies and journals, and in nearly all cases the writer of such papers, though considering only a particular division of the subject, begins by lamenting the lack of time and space to enable him to do full justice to his article. What then can be said when an attempt is made to treat the entire subject in a comprehensive way in one small paper?
2. In order to keep the discussion within reasonable bounds, every effort toward brevity will be made, as it is intended for those officers who are desirous of knowing where the subject stands to-day, enabling them to decide accurately and correctly the various questions that arise in the course of their work.
3. The applications of the electric motor that come up for the naval officer’s consideration are (1) its use in shops, and (2) its use on ships.
Application in Shops.