Insuper autem ad capsum raedae loculamentum firmiter figatur habens tympanum versatile in cultro conlocatum et in axiculo conclusum, in cuius tympani frontem denticuli perficiantur aequaliter divisi numero quadringenti convenientes denticulos tympani inferioris.
Above this, in the body of the carriage, let a box be securely fixed with a drum revolving perpendicularly, and fastened to an axle. On the outside edge of the drum 400 teeth are to be set at equal intervals so as to meet the teeth on the lower drum.
final_alignments\Vitruvius_Architecture_Book_10.json