وإن شئت أن تضعه باللولب الذي يفتل باليد؛ وهو أن تغرز في الأرض عند رأس العليل في آخر الدكان أيضًا خشبتين، وليكن بعد ما بين كل خشبة شبرًا
If you wish you may operate by means of a winch turned by hand; thus you fix in the ground at the head of the patient, at one end of the bench, two wooden spars each one cubit long; and the same at the lower end, at his feet; there should be the distance of a span between the spars (of each pair