Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 830
IwW ® ® of ropes proceeding from the movable block. The quotient is the power required to balance theweight. When the fixed end of the rope is attached to the fixed block, the number of ropes pro-ceeding from the loose block is twice the number of movable pulleys, and the power may be found
Mechanical engineering -- Dictionaries
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