Insuper in altero loculamento cum eo confixo inclusum tympanum planum ad eundem modum dentatum, quibus dentibus <convenit> denticulus, qui est ad latus fixus tympano, quod est in cultro conlocatum, ut eos dentes, qui sunt plani tympani, singulis versationibus singulos dens inpellendo in orbem planum tympanum verset.
Above, and adjoining it, another case is fixed, which contains a horizontal wheel toothed in the same way. Answering to these teeth, there is the tooth which is fixed on the side of the vertical drum. This tooth at each revolution drives one of the teeth which belong to the horizontal drum and turns the horizontal drum round in a circle.
final_alignments\Vitruvius_Architecture_Book_10.json