This ad for Advance-Rumely comes from a 1921 Thresherman magazine. These were great engines, and yes, I am a bit prejudiced, since I learned steam engine operation on an 18 HP Advance-Rumely. They were unusual in using a Marsh valve gear. The Marsh used timing gears with an eccentrically mounted crankpin instead of a conventional eccentric driven valve gear.
Saturday, April 12, 2008
Weekend Steam
This ad for Advance-Rumely comes from a 1921 Thresherman magazine. These were great engines, and yes, I am a bit prejudiced, since I learned steam engine operation on an 18 HP Advance-Rumely. They were unusual in using a Marsh valve gear. The Marsh used timing gears with an eccentrically mounted crankpin instead of a conventional eccentric driven valve gear.
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