shrinking head

1 definition found

shrinking head - Collaborative International Dictionary of English v.0.48 :

  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]