Source : Webster's Revised Unabridged Dictionary (1913)

Tilting \Tilt"ing\, n.
   1. The act of one who tilts; a tilt.

   2. The process by which blister steel is rendered ductile by
      being forged with a tilt hammer.

   {Tilting helmet}, a helmet of large size and unusual weight
      and strength, worn at tilts.