Eschweiler pump

In 1784 Johann Peter Wültgens extended the coal concessions he had in the area of Eschweiler near Aachen. In 1794 a Newcomen type pumping engine was erected on the colliery which is described as driving 2 pumps with 42m of rods. It worked at 11-12 1.76m strokes per minute. It was one of the earliest steam engines in Germany. The enginehouse survives and is rather different from the normal British practice where the beam pivoted on an outer wall and the shaft was outside the building. In this case it looks as if the engine was entirely within the building.