Jun/Jul 2008

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R. M. OWEN Had a Different Idea

By Fred J. Parker

714 South 4th St. Hamilton, Montana 59840

Control shaft: from left to right, drive gear, one way clutch, governor weights, plug valve and drive, ignition contacts.

R.M. Owen must have wanted to build a long-life, substantial home lighting plant for people who could not access public power sources.

His idea was to use a rotary valve in the engine. The valve itself was a cone-shaped plug with two recesses in the near vertical side of the plug. As the plug turned, the recesses provided a passage from the intake to the cylinder; then as it rotated further, it provided a passage from the cylinder to the exhaust port. Since the valve had two recesses diametrically opposite from each other, it was only necessary for the plug to rotate 180 degrees for the four cycles or 720 degrees of crank shaft rot...

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