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9Descending once more to the inferior block, they pass round the second rank of pulleys from the inner to the outer side, and are then returned to the second rank of pulleys in the higher block, over which they pass and return to the lowest, whence they are again carried upwards, and passing round the uppermost pulley, return to the lower part of the machine. A third block is fixed near the bottom of the pole, whose Greek name is ἐπάγων, but with us it is called Artemo. This block, which is made fast to the pole at a small distance from the ground, has three pulleys through which the ropes are passed, for the men to work them. Thus, three sets of men, working without the intervention of a capstan, quickly raise the weight to its required height.
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