'Shrinking head' definitions:

Definition of 'Shrinking head'

From: GCIDE
  • Shrinking \Shrink"ing\, a. & n. from Shrink. [1913 Webster]
  • Shrinking head (Founding), a body of molten metal connected with a mold for the purpose of supplying metal to compensate for the shrinkage of the casting; -- called also sinking head, and riser. [1913 Webster]