Ita versatio rotae catenam in axem involvendo efferet situlos in summum, qui <cum> super axem pervehuntur, cogentur inverti et infundere in castellum aquae quod extulerint.
Thus the turning of the wheel makes the chain revolve round the axle, and carries the buckets to the top. These are carried over the axle; they are made to turn over and pour into the conduit the water they have raised.
final_alignments\Vitruvius_Architecture_Book_10.json