Pressure-bar. A bar or piece that presses the work to the table in a wood-planing machine.
Protractor. A tool having a blade which may be set to the degrees of a circle which are marked upon the back or stock of the protractor.
Pulley. A wheel that receives or drives a band, belt or rope.
Pulley or belt-pulley. A wheel that drives or is driven by a belt.
Q
Quadrant. 1. A piece forming one-fourth of a circle. 2. A piece forming the segment of a circle.
Quick return. A motion by means of which a head ram or work-table is moved faster during its return traverse than during its cutting traverse.
R
Rabbet. A step at the end of a piece of wood.
Rabbeting-plane. A plane for rabbeting.