Posted by Hendrik from Germany on November 29, 2017 at 08:12:50 from (212.144.4.254):
The first kind of "tractor" was the "Bulldog". Until today, in some regions of Germany the name "Bulldog" stands for any tractor.
This is it, the Lanz Bulldog HL12. Built from 1921 to 1927. Single cylinder hot bulb two stroke engine, 12hp. No transmission. The engine could be easily ran in both directions for reversing.
This engine was known for being able to burn ANY inflamable fluids. The distinctive shape of the cylinder head with its hot bulb and the two fly wheels resembled the head of a bulldog.
Note: The Lanz HL12 Bulldog was not ment to work on fields like pulling a plow or something. It was a self propelled engine that could power different sorts of machinery and haul goods or pull the machinery from one location to another.
View from behind. This engine is NOT hopper cooled. It has a water tank underneath the engine cast into the frame. The tank on top of the engine is the fuel tank. An upright exhaust was available just as a canopy or hard rubber wheels.
Lanz sold many of these Bulldog all over the world (not to the U.S.). The Lanz HL12 tractor was the first tractor in the world that ran on heavy oil (Diesel fuel).
The engine was available as a stationary engine, called "Ortbulldog" (i.e. "spot Bulldog"). Very rare!
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