Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 689
To make this theorem clearer, attach a number of pulleys to a vertical plane, sucli as an uprightDoard, and carrying over them the lines which represent the forces, and attach weights to their ex-tremities, as in Fig. 1755. Then take any part A a on the string Am, and from a on the board, drawa…
Mechanical engineering · Mechanics · Engineering
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