Ausonius - Saw Mill

Saw Mill

His writings are also remarkable for mentioning, in passing, the working of a water mill sawing marble on a tributary of the Moselle:

....renowned is Celbis for glorious fish, and that other, as he turns his mill-stones in furious revolutions and drives the shrieking saws through smooth blocks of marble, hears from either bank a ceaseless din...

The excerpt sheds new light on the development of Roman technology in using water power for different applications. It is one of the rare references in Roman literature of water mills used to cut stone, but is a logical consequence of the application of water power to mechanical sawing of stone (and presumably wood also). Earlier references to the widespread use of mills occur in Vitruvius in his De Architectura of circa 25 BC, and the Naturalis Historia of Pliny the Elder published in 77 AD. Such applications of mills were to multiply again after the fall of the Empire through the Dark Ages into the modern era. The mills at Barbegal in southern France are famous for their application of water power to grinding grain to make flour and were built in the 1st century AD. They consisted of 16 mills in a parallel sequence on a hill near Arles.

The construction of a saw mill is even simpler than a flour or grinding mill, since no gearing is needed, and the rotary saw blade can be driven direct from the water wheel axle, as the example of Sutter's Mill in California shows. However, a different mechanism is shown by the sawmill at Hieropolis involving a frame saw operated through a crank and connecting rod.