Rigger \Rig"ger\, n.1. One who rigs or dresses; one whose occupation is to fit the rigging of a ship.
2. A cylindrical pulley or drum in machinery. [R.]
Source: Webster's Revised Unabridged Dictionary (1913)
Rigger \Rig"ger\, n. (Painting) A long slender, and pointed sable brush for making fine lines, etc.; -- said to be so called from its use by marine painters for drawing the lines of the rigging.