Ita funis ductarius traicitur in inferioris trocleae foramen, uti aequalia duo capita sint funis, cum erit extensus, ibique secundum inferiorem trocleam resticula circumdata et contenta utraeque partes funis continentur, ut neque <in dextram neque> in sinistram partem possint prodire.
The guide rope passes into a hole in the lower block in such a way that the rope when it is taut has its two ends equally long. The rope being passed round and secured to the lower block, both ends of the rope are secured so that they cannot swerve to the right or left.
final_alignments\Vitruvius_Architecture_Book_10.json