The manufacturer of this generator started in 1884 as the Geo. F. Card & O. W. Jantz Manufacturing Company. It was renamed to the Bullock Electric Manufacturing Company when George Bullock, who graduated from Cornell University in 1882, took over the company in 1887. In 1904 the company was leased by Allis-Chalmers and finally acquired in 1905. A few years later General Electric took control of Allis-Chalmers by buying most of their common stock. Allis-Chalmers created a joint venture with Siemens in 1978 and was acquired by Siemens in 1985. The same facility that George Bullock built in 1897 is now part of the Industrial Product Unit of Siemens Energy and Automation.
This Bullock Compound DC Generator is powered by a horizontal New York Safety Steam engine. The field coils have a shunt coil wound on the outside to help regulate the output voltage when the load changes. There are three different ways that this generator can be wired. We need to experiment to determine which way will yield the best voltage regulation.
The generator can make up to 16 kVA at 120 VDC when spinning at 725 RPM. We need to check the size of the generator and steam engine pullies and the governed speed of the steam engine to see of the generator will spin at the desired speed. We use incandescent light bulbs for a load, and the total load just just a few kW.