Logging Locomotive - Another Type (3 of 5)

As we have seen in the past few posts, getting through the steep grades of logging mountain sides was accomplished through many designs of steam locomotives. This engine is called a "Mallet" (pronounced mal-ay);

it was invented by a Swiss (think lots of mountains) engineer Anatole Mallet who lived from 1837 to 1919. A Mallet engine has one boiler that is connected to two sets of driving cylinders; this is also called an articulated engine. What makes this a Mallet engine is that the steam goes through one set of cylinders (rear) at high pressure, the exhaust from those cylinders is at a lower pressure, but strong enough to still be used in the second set of cylinders (front set) before it is sent out the exhaust. The picture on the front of this post card is of a Mallet 2-6-6-2 built by the Baldwin Locomotive Works. It is being used at the Bloedel Donovan Lumber Mills in Sekiu, near Clallam Bay on the westen side of the Olympic Peninsula.

The photo was taken around 1930. The post card continues to show you some of the post cards in my collectioin that are from the Kinsey's Locomotive series. I will continue next week with another, different, design of steam locomotive also used in the logging industry.