PAWL n.
A pivoted tongue, or sliding bolt, on one part of a machine, adapted to fall into notches, or interdental spaces, on another part, as a ratchet wheel, in such a manner as to permit motion in one direction and prevent it in the reverse, as in a windlass; a catch, click, or detent. See Illust. of Ratchet Wheel. [Written…
PILLOW n.
supporting a journal, as of a shaft. It is usually bolted to the frame or foundation of a machine, and is often furnished with journal boxes, and a movable cover, or cap, for tightening the bearings by means of bolts; -- called also pillar block, or plumber block. -- Pillow lace, handmade lace wrought with bobbins upo…
PLAN n.
, a representation drawn on a plane, as a map or a chart; especially, a top view, as of a machine, or the representation or delineation of a horizontal section of anything, as of a building; a graphic representation; a diagram.