Coolspring Spotlight

The rare and the beautiful from the Coolspring Power Museum


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The Evans

Horsepower: 20
Manufacturer: Evans Mfg. Co., Butler, Pa.
Year: circa 1915
Bore: 10-1/2-inch
Stroke: 17-inch

Evans Mfg. Co. was founded in 1893 by Evan Evans in Butler, Pa., to manufacture brass fittings and valves.

Located on Center Ave., it was moved in 1896 to S. McKean and E. Wayne Street where it made clutch pulleys and repaired steam engines.

In 1898 a partnership was formed with C.A. Templeton and the firm's name became Evans-Templeton. The partnership lasted two years. Two years later the company's name was changed to Evans Mfg. Co., and about that time it began to manufacture gas engines for the oil well trade under that name.

Evan remained active in the company until his death in 1906. The company probably ceased engine manufacture sometime around World War I, but remained in business as a brass and iron foundry, along with offering machine shop services to the oil field trade until around 1940. The factory had 45 to 50 employees when manufacturing engines.

Evans built engines in the following known sizes: 8, 10, 15, 20 and 25 HP. It built predominantly 4-cycle engines, but also made 2-cycle cylinders for half-breed conversions, along with crosshead-style frames.

Evans engines were one of the most reliable engines used to pump oil. They are famous for their ability to be throttled back, and run silently for display purposes. Of course, they were loud when run under a load.

The 20 HP Evans on display at the Coolspring Power Museum sits on the original wood base on which it pumped oil, using a standard rig, in the Chicora oil fields in Pennsylvania.It was taken off the well by the owner of the oil lease and run at home for his enjoyment. It is currently owned by Roy Pasini.

Contact the Coolspring Power Museum at: P.O. Box 19, Coolspring, PA 15730; (814) 849-6883;;