Hand-Built Pence Steam Engines Are Machinist’s Legacy

By James Boblenz
Published on June 22, 2009
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Main drive gear and steering gear box with chain steering.
Main drive gear and steering gear box with chain steering.
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The main drive pulley that runs directly off the drive engine.
The main drive pulley that runs directly off the drive engine.
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The largest of the Pence steam engines, the Bull Dog uses a 15 hp Frick Eclipse stationary boiler mounted on an Avery chassis with a Kelly 2-cylinder industrial engine, a steam-powered generator and headlight. It has a clutched pulley on the left and a continuous-drive pulley on the right. The engine weighs about 10 tons; its rear wheels are over 4 feet tall.
The largest of the Pence steam engines, the Bull Dog uses a 15 hp Frick Eclipse stationary boiler mounted on an Avery chassis with a Kelly 2-cylinder industrial engine, a steam-powered generator and headlight. It has a clutched pulley on the left and a continuous-drive pulley on the right. The engine weighs about 10 tons; its rear wheels are over 4 feet tall.
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A Blood 2-cylinder under-mounted engine and geared belt pulley.
A Blood 2-cylinder under-mounted engine and geared belt pulley.
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Front view of the Bull Dog featuring the Eclipse badge, Avery Bulldog caricature and Pence Machine Shop name.
Front view of the Bull Dog featuring the Eclipse badge, Avery Bulldog caricature and Pence Machine Shop name.
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A chain wraps one full turn around the engine’s capstan to provide steering.
A chain wraps one full turn around the engine’s capstan to provide steering.
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The Pence Bull Pup, the smaller of the two Pence steam engines in Tim Calvin’s collection, weighs about 5 tons.
The Pence Bull Pup, the smaller of the two Pence steam engines in Tim Calvin’s collection, weighs about 5 tons.
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The builder is identified on the right rear fender; just two Pence Bull Dogs were built.
The builder is identified on the right rear fender; just two Pence Bull Dogs were built.
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The steering mechanism on this Bull Pup is much different from that on the larger Pence Bull Dog.
The steering mechanism on this Bull Pup is much different from that on the larger Pence Bull Dog.

Back in the days when farming made the transition from horsepower to tractor power, steam was king.

Youngsters stood by the front gate and watched in awe as the big, slow moving monsters came down the road, blowing clouds of black smoke, clinking and clanking. Sometimes an engineer would make the whistle scream as the engine towed its load of a huge separator, its own water wagon and maybe a fuel tender en route to the next farm to harvest grain.

For those who were youngsters then, the name of the passing engine was of little importance. Today, of course, it’s a real treat to see your favorite engine at a show, especially if it was a local engine, owned and operated nearby. But the sad reality is that steam engines are increasingly rare at many small, local shows.

If you find yourself in the right place at the right time, you might just come across a Pence steam traction engine. But it won’t be a nostalgic moment, because Pence steam traction engines were not manufactured as production models. Just three exist, each hand-built by the late Harold Fleisch, the master machinist of Pence Machine Shop in West Alexandria, Ohio.

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