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62
THE
COMPLETE
PRACTICAL
DISTILLER.
Fig.
7.
The
bottom
of
this
boiler
is
divided
by
concentric
par-
titions,
which
stand
up
(as
shown
in
fig.
6)
sufficiently
high
to
prevent
the
liquor
from
boiling
over.
These
par-
titions
have
openings
from
one
another
at
opposite
sides,
so as
to
make
the
course
a
sort
of
labyrinth,
a
is
a
re-
servoir
of
liquor
prepared
for
the
operation
; Z>
is
a pipe
or
tube
descending
from
the
reservoir,
conducting
the
liquor
to
that
part
of
the
boiler
marked
c,
which
is
the
commencement
of
the
race.
From
hence
the
liquor
flows
through
the
channels,
as
shown
by
the
arrows,
progres-
sively
traversing
the
whole
surface
of
the
bottom;
so
that
the
full
eflPect
of the
fire is
exerted
upon
small
por-
tions
of the
liquid,
which
causes
the
evaporation
to
pro-
ceed
with
great
rapidity.
The
residue
of
the
liquor
then
passes
off
by
the
dis-
charge-pipe
d,
contrived
to
slide,
for
the
purpose
of
regu-
lating
the
quantity
and
depth
of
the
fluid
intended
for
the
still
;
and
this
pipe
should
be
in
such
proportion
to
the