This Gilkes Turbine was invented by Lord Armstrong of Cragside and Henry Watson of Newcastle in the 1880's to power milling, threshing, and grinding machines in the Machine Room at Cragend Farm. It is linked by underground pipes to the Silo on the south-east side of the farm, which powered a Jig that lifted 32 x 1 tonne weights to make silage for the cattle on the farm. It wa ...