Ad tornum aut circinum fabricatus <axis,> capitibus lamna ferratis, habens in medio circa se tympanum ex tabulis inter se coagmentatis, conlocatur in stipitibus habentibus in se sub capita axis ferreas lamminas.
The axle is wrought in a lathe or made circular by hand and its ends are hooped with iron bands. Round the middle it has a drum of planks fitted together; and it is placed upon posts cased with iron, under the ends of the axle.
final_alignments\Vitruvius_Architecture_Book_10.json