1904 #4 Jewell Steam Engine Evaluation

#4 Jewell Automatic Cutoff Steam Engine. On 80 pounds steam pressure at the engine, it is rated at 15HP at 220 RPM and 18HP at 280 RPM. Rites Patent Governor. Some Frank M. Rites steam engine patents are available from Google Patents. The governor only has one moving part, the bow-tie shaped iron casting. It has a pivot point that is offset from the center line of the casting. When in motion the forces tend to rotate the governor weight so it is is close to the center of mass. A spring opposes the action an