heading-machine

from The Century Dictionary.

• noun In agriculture, a form of harvester by which the heads are torn off from the standing grain. See reaping-machine.
• noun An apparatus for swaging up the heads of bolts or pins.
• noun A kind of lathe for forming and trimming the heads of casks.
• noun A press in which the heads of cartridges are shaped.
• noun A machine for making the heads of pins.