Jerry's Original 4-In-1 Vacuum Engine (4IN1)

"The correct terminology is 'atmospheric engine'. But anyway, here is a 'flame eater' engine you can build any of four ways: (1) - Air Cooled Side Crank as shown, (2) - Water Cooled Side Crank, (3) - Air Cooled Center Crank or (4) - Water Cooled Center Crank!

The air cooled engines have an optional belt driven cooling fan which provides cooling for long running sessions. The engine runs fine without it. With the fan, the engine will run all day long and never get hot. But long runs or not, the fan also adds much interest to the engine.

All four versions use my oscillating (twisting) side shaft mechanism to operate the head valve. My unique valve seat is of self lubricating non-metallic material which greatly reduces valve sliding friction and virtually eliminates wear. The engine speed range is from 60 to 600 RPM or so." - Jerry

Jerry's Original "Miser"

"The Miser engine type is the best conversation piece ever invented. 
It will run on a cup of warm coffee, the warmth of your hand, or even an ice cream cone! 
Here is an engine that you can actually operate in bed with no danger of setting the sheets on fire!" - JEH

He had a goof-ball sense of humor sometimes!