Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 351
st have their diameters pro-portioned to the diameters of the rope or chain to be used (seetable of sheaves above), and their length to the length of ropeor chain to be taken in, and when the coils or turns of the ropeare numerous, provision must often be made for keeping therope or chain so that… … MACHINE DESIGN AND MECHANICAL CONSTRUCTIONS. 335 with but few coils on the barrel. The coils are sufficient for the friction oftaking up the cable; the tight cable is wound on the larger part of the barrel,and as the coils are unwound on the slack side the tight coil slips down to asmaller…
Mechanical drawing
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