(1) The notched wheel shape that is used in a pulley is actually called a sheave , which is more what I meant.(2) A heavier line and finally a steel rope then followed, a wooden box was slung on two steel sheaves from the steel rope and pulled by a steel wire from both ends and a windless operated by an African.(3) Check on the cables, sheaves and adapters for wear or damage.(4) He replaced the sheaves and pulleys with a direct coupling.(5) According to Plutarch, Archimedes used a polypaston, or block and tackle, with a large number of sheaves .
