The Bone Mill

This is the gearing on the other side of the wall from the Princess.

You can see the gearing and shafts to the left and right.

These shafts power paddles in 12 tanks that are loaded with about 10 tons of cattle bones that have been roasted in a kiln.

Each vat had a flint lined bottom and 3 of these hugh softer flint boulders that were tumbled around the tank by the wooden paddles crushing the bones that were in a water slurry. The steam engine started this mill on the first stroke under full load with out the help on any clutch. That's torque. Bone china is 50% ground cattle bones.