Rider Hot-Air
Pumping Engine


January 2007
Now restored to full operational condition !




Before restoration ...


      ... and after



Builder's Patent Tag

The tag indicates that this is a "Rider" engine - as opposed to a newer
"Ericsson" engine - that was built by the Rider-Ericsson Engine
Company to an improved design under patents issued between
1875 and 1880, probably shortly after August, 1880.

It has a 6" bore and a 3" stroke and was assigned
Works Serial Number 14082.

Its official designation is a "hot-air pumping engine".


Finishing Touches

In February, 2007, the stove was fitted with a new chimney crafted by our restoration team. The engine was then mounted on a fabricated railroad truck to give it better mobility for public demonstrations.

Here our restoration team leaders, John Dewez (R) and Tom Frankie (L), pose with the Rider engine after a successful trial run.


Rider-Ericsson Company advertisements

showing various uses for a Rider Hot-Air Pumping Engine


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The Rider-Ericsson Factory

The Rider-Ericsson Engine Company factory
in Walden, New York, c. 1900


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Line Drawings of Rider Engines

Two Rider engines from a Rider-Ericsson advertisement, c. 1890.


A sectional drawing of a Rider engine, c. 1890,
probably from a patent application.



A large Rider engine features in this c.1906 ad for the
De Lamater Iron Works, a Rider-Ericsson subsidiary.





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