Any open lead for a rope: if not furnished with a sheave, it is termed a dumb snatch, as on the bows and quarters for hawsers.
The sheave at the stern was fixed on the end of the screw shaft.
The outer frame or case wherein the sheave or wheel is contained and traverses about its axis.
The shell is now completed, and the visitor is next shown the different processes in forming the sheave and the pin.
Water, admitted to a horizontal cylinder, displaced a piston and rod to which a sheave was attached.
By the seventh operation, the central hole in the coak for the pin, on which the sheave turns, is drilled out.
The sheave attached to the ship at the bow was slung by chains about 80 feet from the stem.
By the eighth, the groove for the rope is turned round the circumference of the sheave, and its sides polished.
The wire is led over a sheave on top of the ladder and fixed to the picket post at the beginning of the line.
In the eccentric what corresponds to the crank-pin is called the sheave or pulley.