The Collaborative International Dictionary of English v.0.48:

Gauntree \Gaun"tree\, Gauntry \Gaun"try\, n. [F. chantier, LL.
   cantarium, fr. L. canterius trellis, sort of frame.]
   1. A frame for supporting barrels in a cellar or elsewhere.
      --Sir W. Scott.
      [1913 Webster]

   2. (Engin.) A scaffolding or frame carrying a crane or other
      structure. --Knight.
      [1913 Webster]

WordNet (r) 3.0 (2006):

gauntry
    n 1: a framework of steel bars raised on side supports to bridge
         over or around something; can display railway signals above
         several tracks or can support a traveling crane etc. [syn:
         gantry, gauntry]