A quill drive is a mechanism that allows a drive shaft to shift its position (either axially, radially, or both) relative to its driving shaft. It consists of a hollow driving shaft (the quill) with a driven shaft inside it. The two are connected in some fashion which permits the required motion.
Famous quotes containing the word drive:
“You may drive out nature with a pitchfork, yet she’ll be constantly running back.”
—Horace [Quintus Horatius Flaccus] (65–8 B.C.)