2 definitions
for Sinking head
From The 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]
From The Collaborative International Dictionary of English v.0.48 :
Sinking \Sink"ing\,
a. & n. from Sink.
[1913 Webster]
Sinking fund. See under Fund.
Sinking head (Founding), a riser from which the mold is fed
as the casting shrinks. See Riser, n., 4.
Sinking pump, a pump which can be lowered in a well or a
mine shaft as the level of the water sinks.
[1913 Webster]
