Land. That part of a tap or a reamer that lies between its plates and carries the cutting edges or teeth.
Lantern. A primitive form of gear in which rungs are used instead of teeth.
Lap. A grinding device consisting of a lead or other soft metal surface, on which emery and oil is used.
Lap-joint. A joint in which one piece overlaps the other.
Lap-weld. A weld in which both pieces are beveled at the ends and one end overlaps the other where the two are put together to weld.
Lathe. A machine that revolves work to be operated by cutting tools.
Lathe-bed. The frame that carries the head and tail stock of a lathe, and that rests upon a solid foundation.
Lathe-carriage. The sliding piece that carries the tool rest of a lathe.
Lathe-centre. The piece or part of a lathe that enters the coned recess of lathe work that is held between centres.
Lathe-saddle. The sliding piece that carries the tool rest of a lathe.