Greensburg, National Mine Service and Eimco locomotives

We are currently researching the history of Greensburg Machine Co.  However, we do believe Greensburg started producing battery and trolley locomotives in the 1920's, at their machine foundry, in the town of Greensburg, Pa.   They offered a line of economical locomotive models, raging from 1.5 to 15 Tons, for all types of industrial applications.   In the late 1950's, former competitor - National Mine Service, acquired Greensburg and relocated their operations to Ashland, Kentucky.  Since NMS had some experience manufacturing diesel-torque converter locomotives, they continued to offer these units, plus battery  and trolley products under the Greensburg brand name.    Around the mid-1980's, EIMCo took over NMS and later A. L. Lee.