Possible Definitions:
1. Router (n.) A machine with a rapidly revolving vertical spindle and cutter for scooping out the surface of wood or metal, as between and around the engraved parts of an electrotype.
2. Router (n.) A plane made like a spokeshave, for working the inside edges of circular sashes.
3. Router (n.) A plane with a hooked tool protruding far below the sole, for smoothing the bottom of a cavity.
