  IRAS 19475+3119 is a quadrupolar pre-planetary nebula (PPN), with two bipolar
lobes, one in the east-west (E-W) direction and one in the southeast-northwest
(SE-NW) direction. We have observed it in CO J=2-1 with the Submillimeter Array
at ~ 1" resolution. The E-W bipolar lobe is known to trace a bipolar outflow
and it is detected at high velocity. The SE-NW bipolar lobe appears at low
velocity, and could trace a bipolar outflow moving in the plane of the sky. Two
compact clumps are seen at low velocity around the common waist of the two
bipolar lobes, spatially coincident with the two emission peaks in the NIR,
tracing dense envelope material. They are found to trace the two
limb-brightened edges of a slowly expanding torus-like circumstellar envelope
produced in the late AGB phase. This torus-like envelope originally could be
either a torus or a spherical shell, and it appears as it is now because of the
two pairs of cavities along the two bipolar lobes. Thus, the envelope appears
to be disrupted by the two bipolar outflows in the PPN phase.
